<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <roleRef roleURI="http://www.portlandgeneral.com/role/AssetRetirementObilgations" xlink:href="por-20151231.xsd#AssetRetirementObilgations" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/AssetRetirementObligationsDetails" xlink:href="por-20151231.xsd#AssetRetirementObligationsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/AssetRetirementObligationsPolicies" xlink:href="por-20151231.xsd#AssetRetirementObligationsPolicies" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/AssetRetirementObligationsTables" xlink:href="por-20151231.xsd#AssetRetirementObligationsTables" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/BalanceSheetComponents" xlink:href="por-20151231.xsd#BalanceSheetComponents" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/BalanceSheetComponentsAllowanceForUncollectibleAccountsActivityDetails" xlink:href="por-20151231.xsd#BalanceSheetComponentsAllowanceForUncollectibleAccountsActivityDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/BalanceSheetComponentsDetails" xlink:href="por-20151231.xsd#BalanceSheetComponentsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/BalanceSheetComponentsInvestmentsHeldInTrustDetails" xlink:href="por-20151231.xsd#BalanceSheetComponentsInvestmentsHeldInTrustDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/BalanceSheetComponentsScheduleOfOtherAsssetsAndOtherLiabilitiesDetails" xlink:href="por-20151231.xsd#BalanceSheetComponentsScheduleOfOtherAsssetsAndOtherLiabilitiesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/BalanceSheetComponentsTables" xlink:href="por-20151231.xsd#BalanceSheetComponentsTables" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/BasisOfPresentation" xlink:href="por-20151231.xsd#BasisOfPresentation" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/BasisOfPresentationBasisOfPresentationPolicies" xlink:href="por-20151231.xsd#BasisOfPresentationBasisOfPresentationPolicies" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/BasisOfPresentationDetails" xlink:href="por-20151231.xsd#BasisOfPresentationDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/CommitmentsAndGuarantees" xlink:href="por-20151231.xsd#CommitmentsAndGuarantees" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/CommitmentsAndGuaranteesDetails" xlink:href="por-20151231.xsd#CommitmentsAndGuaranteesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/CommitmentsAndGuaranteesPolicies" xlink:href="por-20151231.xsd#CommitmentsAndGuaranteesPolicies" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/CommitmentsAndGuaranteesSchduleOfLongTermContractsForPurchaseOfElectricPowerDetails" xlink:href="por-20151231.xsd#CommitmentsAndGuaranteesSchduleOfLongTermContractsForPurchaseOfElectricPowerDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/CommitmentsAndGuaranteesTables" xlink:href="por-20151231.xsd#CommitmentsAndGuaranteesTables" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/CommitmentsAndGuaranteesUnrecordedUnconditionalPurchaseObligationsDetails" xlink:href="por-20151231.xsd#CommitmentsAndGuaranteesUnrecordedUnconditionalPurchaseObligationsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/ConsolidatedBalanceSheets" xlink:href="por-20151231.xsd#ConsolidatedBalanceSheets" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/ConsolidatedBalanceSheetsConsolidatedBalanceSheetParentheticals" xlink:href="por-20151231.xsd#ConsolidatedBalanceSheetsConsolidatedBalanceSheetParentheticals" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/ConsolidatedStatementsOfCashFlows" xlink:href="por-20151231.xsd#ConsolidatedStatementsOfCashFlows" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/ConsolidatedStatementsOfComprehensiveIncome" xlink:href="por-20151231.xsd#ConsolidatedStatementsOfComprehensiveIncome" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/ConsolidatedStatementsOfComprehensiveIncomeConsolidatedStatementOfComprehensiveIncomeParentheticals" xlink:href="por-20151231.xsd#ConsolidatedStatementsOfComprehensiveIncomeConsolidatedStatementOfComprehensiveIncomeParentheticals" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/ConsolidatedStatementsOfEquity" xlink:href="por-20151231.xsd#ConsolidatedStatementsOfEquity" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/ConsolidatedStatementsOfEquityConsolidatedStatementOfEquityParenthetical" xlink:href="por-20151231.xsd#ConsolidatedStatementsOfEquityConsolidatedStatementOfEquityParenthetical" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/ConsolidatedStatementsOfIncome" xlink:href="por-20151231.xsd#ConsolidatedStatementsOfIncome" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/Contingencies" xlink:href="por-20151231.xsd#Contingencies" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/ContingenciesDetails" xlink:href="por-20151231.xsd#ContingenciesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/ContingenciesPolicies" xlink:href="por-20151231.xsd#ContingenciesPolicies" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/CounterpartiesRepresenting10OrMoreDetails" xlink:href="por-20151231.xsd#CounterpartiesRepresenting10OrMoreDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/CreditFacilities" xlink:href="por-20151231.xsd#CreditFacilities" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/CreditFacilitiesDetails" xlink:href="por-20151231.xsd#CreditFacilitiesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/CreditFacilitiesScheduleOfShortTermDebtDetails" xlink:href="por-20151231.xsd#CreditFacilitiesScheduleOfShortTermDebtDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/CreditFacilitiesTables" xlink:href="por-20151231.xsd#CreditFacilitiesTables" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/DeiDocument" xlink:href="por-20151231.xsd#DeiDocument" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/EarningsPerShare" xlink:href="por-20151231.xsd#EarningsPerShare" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/EarningsPerShareEarningsPerShareDetails" xlink:href="por-20151231.xsd#EarningsPerShareEarningsPerShareDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/EarningsPerShareScheduleOfEarningsPerShareBasicAndDilutedDetails" xlink:href="por-20151231.xsd#EarningsPerShareScheduleOfEarningsPerShareBasicAndDilutedDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/EarningsPerShareTables" xlink:href="por-20151231.xsd#EarningsPerShareTables" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/EmployeeBenefits" xlink:href="por-20151231.xsd#EmployeeBenefits" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/EmployeeBenefitsAssetsAndLiabilitiesAssociatedWithNonQualifiedBenefitPlansDetails" xlink:href="por-20151231.xsd#EmployeeBenefitsAssetsAndLiabilitiesAssociatedWithNonQualifiedBenefitPlansDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/EmployeeBenefitsDetails" xlink:href="por-20151231.xsd#EmployeeBenefitsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/EmployeeBenefitsPolicies" xlink:href="por-20151231.xsd#EmployeeBenefitsPolicies" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/EmployeeBenefitsScheduleOfAllocationOfPlanAssetsDetails" xlink:href="por-20151231.xsd#EmployeeBenefitsScheduleOfAllocationOfPlanAssetsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/EmployeeBenefitsScheduleOfChangesInFairValueOfPlanAssetsDetails" xlink:href="por-20151231.xsd#EmployeeBenefitsScheduleOfChangesInFairValueOfPlanAssetsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/EmployeeBenefitsScheduleOfDefinedBenefitPlanDisclosuresDetails" xlink:href="por-20151231.xsd#EmployeeBenefitsScheduleOfDefinedBenefitPlanDisclosuresDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/EmployeeBenefitsScheduleOfExpectedBenefitPaymentsDetails" xlink:href="por-20151231.xsd#EmployeeBenefitsScheduleOfExpectedBenefitPaymentsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/EmployeeBenefitsScheduleOfFairValueAssetsDetails" xlink:href="por-20151231.xsd#EmployeeBenefitsScheduleOfFairValueAssetsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/EmployeeBenefitsScheduleOfNetBenefitCostsDetails" xlink:href="por-20151231.xsd#EmployeeBenefitsScheduleOfNetBenefitCostsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/EmployeeBenefitsTables" xlink:href="por-20151231.xsd#EmployeeBenefitsTables" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/EquityBasedPlans" xlink:href="por-20151231.xsd#EquityBasedPlans" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/EquityBasedPlansDetails" xlink:href="por-20151231.xsd#EquityBasedPlansDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/FairValueOfFinancialInstruments" xlink:href="por-20151231.xsd#FairValueOfFinancialInstruments" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/FairValueOfFinancialInstrumentsDetails" xlink:href="por-20151231.xsd#FairValueOfFinancialInstrumentsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/FairValueOfFinancialInstrumentsFairValueOptionsQuantitativeDisclosureDetails" xlink:href="por-20151231.xsd#FairValueOfFinancialInstrumentsFairValueOptionsQuantitativeDisclosureDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/FairValueOfFinancialInstrumentsFairValueUnobservableInputReconciliationDetails" xlink:href="por-20151231.xsd#FairValueOfFinancialInstrumentsFairValueUnobservableInputReconciliationDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/FairValueOfFinancialInstrumentsPolicies" xlink:href="por-20151231.xsd#FairValueOfFinancialInstrumentsPolicies" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/FairValueOfFinancialInstrumentsScheduleOfFairValueDetails" xlink:href="por-20151231.xsd#FairValueOfFinancialInstrumentsScheduleOfFairValueDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/FairValueOfFinancialInstrumentsTables" xlink:href="por-20151231.xsd#FairValueOfFinancialInstrumentsTables" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/FairValuesOfPriceRiskManagementAssetsAndLiabilitiesDetails" xlink:href="por-20151231.xsd#FairValuesOfPriceRiskManagementAssetsAndLiabilitiesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/FutureYearNetUnrealizedGainLossRecordedAtBalanceSheetDateExpectedToBecomeRealizedDetails" xlink:href="por-20151231.xsd#FutureYearNetUnrealizedGainLossRecordedAtBalanceSheetDateExpectedToBecomeRealizedDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/IncomeTaxes" xlink:href="por-20151231.xsd#IncomeTaxes" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/IncomeTaxesIncomeTaxesDetails" xlink:href="por-20151231.xsd#IncomeTaxesIncomeTaxesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/IncomeTaxesIncomeTaxesTables" xlink:href="por-20151231.xsd#IncomeTaxesIncomeTaxesTables" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/IncomeTaxesScheduleOfComponentsOfIncomeTaxExpenseDetails" xlink:href="por-20151231.xsd#IncomeTaxesScheduleOfComponentsOfIncomeTaxExpenseDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" xlink:href="por-20151231.xsd#IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/IncomeTaxesScheduleOfEffectiveIncomeTaxRateReconciliationDetails" xlink:href="por-20151231.xsd#IncomeTaxesScheduleOfEffectiveIncomeTaxRateReconciliationDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/JointlyOwnedPlant" xlink:href="por-20151231.xsd#JointlyOwnedPlant" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/JointlyOwnedPlantJointlyOwnedPlantDetails" xlink:href="por-20151231.xsd#JointlyOwnedPlantJointlyOwnedPlantDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/JointlyOwnedPlantScheduleOfJointlyOwnedPlantDetails" xlink:href="por-20151231.xsd#JointlyOwnedPlantScheduleOfJointlyOwnedPlantDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/JointlyOwnedPlantTables" xlink:href="por-20151231.xsd#JointlyOwnedPlantTables" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/LongTermDebt" xlink:href="por-20151231.xsd#LongTermDebt" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/LongTermDebtDetails" xlink:href="por-20151231.xsd#LongTermDebtDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/LongTermDebtScheduleOfLongTermDebtInstrumentsDetails" xlink:href="por-20151231.xsd#LongTermDebtScheduleOfLongTermDebtInstrumentsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/LongTermDebtScheduleOfMaturitiesOfLongTermDebtDetails" xlink:href="por-20151231.xsd#LongTermDebtScheduleOfMaturitiesOfLongTermDebtDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/LongTermDebtTables" xlink:href="por-20151231.xsd#LongTermDebtTables" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/NetRealizedAndUnrealizedGainsAndLossesOnDerivativeTransactionsDetails" xlink:href="por-20151231.xsd#NetRealizedAndUnrealizedGainsAndLossesOnDerivativeTransactionsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/NetVolumesRelatedToPriceRiskManagementActivitiesDetails" xlink:href="por-20151231.xsd#NetVolumesRelatedToPriceRiskManagementActivitiesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/PriceRiskManagementDetails" xlink:href="por-20151231.xsd#PriceRiskManagementDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/PriceRiskManagementNotes" xlink:href="por-20151231.xsd#PriceRiskManagementNotes" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/PriceRiskManagementPolicies" xlink:href="por-20151231.xsd#PriceRiskManagementPolicies" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/PriceRiskManagementTables" xlink:href="por-20151231.xsd#PriceRiskManagementTables" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/RegulatoryAssetsAndLiabilities" xlink:href="por-20151231.xsd#RegulatoryAssetsAndLiabilities" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/RegulatoryAssetsAndLiabilitiesDetails" xlink:href="por-20151231.xsd#RegulatoryAssetsAndLiabilitiesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/RegulatoryAssetsAndLiabilitiesPolicies" xlink:href="por-20151231.xsd#RegulatoryAssetsAndLiabilitiesPolicies" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/RegulatoryAssetsAndLiabilitiesScheduleOfRegulatoryAssetsAndLiabilitiesDetails" xlink:href="por-20151231.xsd#RegulatoryAssetsAndLiabilitiesScheduleOfRegulatoryAssetsAndLiabilitiesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/RegulatoryAssetsAndLiabilitiesTables" xlink:href="por-20151231.xsd#RegulatoryAssetsAndLiabilitiesTables" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/ScheduleOfAssetRetirementObligationsDetails" xlink:href="por-20151231.xsd#ScheduleOfAssetRetirementObligationsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/ScheduleOfChangeInAssetRetirementObligationsDetails" xlink:href="por-20151231.xsd#ScheduleOfChangeInAssetRetirementObligationsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/StockBasedCompensationExpense" xlink:href="por-20151231.xsd#StockBasedCompensationExpense" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/StockBasedCompensationExpenseDetails" xlink:href="por-20151231.xsd#StockBasedCompensationExpenseDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/StockBasedCompensationExpenseRestrictedAndPerformanceStockUnitActivityDetails" xlink:href="por-20151231.xsd#StockBasedCompensationExpenseRestrictedAndPerformanceStockUnitActivityDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/StockBasedCompensationExpenseRestrictedAndPerformanceStockUnitActivityTables" xlink:href="por-20151231.xsd#StockBasedCompensationExpenseRestrictedAndPerformanceStockUnitActivityTables" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/StockBasedCompensationExpenseScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsDetails" xlink:href="por-20151231.xsd#StockBasedCompensationExpenseScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/SummaryOfSignificantAccountingPolicies" xlink:href="por-20151231.xsd#SummaryOfSignificantAccountingPolicies" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/SummaryOfSignificantAccountingPoliciesDetails" xlink:href="por-20151231.xsd#SummaryOfSignificantAccountingPoliciesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/SummaryOfSignificantAccountingPoliciesEstimatedAverageServiceLivesDetails" xlink:href="por-20151231.xsd#SummaryOfSignificantAccountingPoliciesEstimatedAverageServiceLivesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:href="por-20151231.xsd#SummaryOfSignificantAccountingPoliciesPolicies" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/SummaryOfSignificantAccountingPoliciesTables" xlink:href="por-20151231.xsd#SummaryOfSignificantAccountingPoliciesTables" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/VariableInterestEntities" xlink:href="por-20151231.xsd#VariableInterestEntities" xlink:type="simple" />
  <roleRef roleURI="http://www.portlandgeneral.com/role/VariableInterestEntitiesDetails" xlink:href="por-20151231.xsd#VariableInterestEntitiesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel" xlink:type="simple" />
  <roleRef roleURI="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel" xlink:type="simple" />
  <roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel" xlink:type="simple" />
  <roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel" xlink:type="simple" />
  <roleRef roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel" xlink:type="simple" />
  <roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel" xlink:type="simple" />
  <roleRef roleURI="http://www.xbrl.org/2009/role/netLabel" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel" xlink:type="simple" />
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/AssetRetirementObilgations" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetRetirementObligationAbstract" xlink:label="loc_us-gaap_AssetRetirementObligationAbstract_4958E9BFEE9CB4CC86E3EADE7E941D3C" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetRetirementObligationDisclosureTextBlock" xlink:label="loc_us-gaap_AssetRetirementObligationDisclosureTextBlock_E4FDC6833C9732C1B0DAEADE7E94772F" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationAbstract_4958E9BFEE9CB4CC86E3EADE7E941D3C" xlink:to="loc_us-gaap_AssetRetirementObligationDisclosureTextBlock_E4FDC6833C9732C1B0DAEADE7E94772F" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/AssetRetirementObligationsDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetRetirementObligationDisclosureAbstract" xlink:label="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_4E81FDE8D8ECA539CE41B87358C1CA14" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_94D70064D1FB7AD32E72B87358C1B342" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_4E81FDE8D8ECA539CE41B87358C1CA14" xlink:to="loc_us-gaap_StatementTable_94D70064D1FB7AD32E72B87358C1B342" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_C65DE76DBAFFF56D6B69B87358C14AA9" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_94D70064D1FB7AD32E72B87358C1B342" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_C65DE76DBAFFF56D6B69B87358C14AA9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_DA41782EEBCF183181CAB87358C145BF" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_C65DE76DBAFFF56D6B69B87358C14AA9" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_DA41782EEBCF183181CAB87358C145BF" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_JointlyOwnedElectricityGenerationPlantMember" xlink:label="loc_us-gaap_JointlyOwnedElectricityGenerationPlantMember_903C3FBFE20F8D4FFA24B8CF075FC7A8" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_DA41782EEBCF183181CAB87358C145BF" xlink:to="loc_us-gaap_JointlyOwnedElectricityGenerationPlantMember_903C3FBFE20F8D4FFA24B8CF075FC7A8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UtilityPlantDomain" xlink:label="loc_us-gaap_UtilityPlantDomain_D73E7EBDDD1D39648D93B87358C17D87" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_DA41782EEBCF183181CAB87358C145BF" xlink:to="loc_us-gaap_UtilityPlantDomain_D73E7EBDDD1D39648D93B87358C17D87" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_3E808E4F2860B818C45DB87358C15AED" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_94D70064D1FB7AD32E72B87358C1B342" xlink:to="loc_us-gaap_StatementLineItems_3E808E4F2860B818C45DB87358C15AED" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetRetirementObligationRevisionOfEstimate" xlink:label="loc_us-gaap_AssetRetirementObligationRevisionOfEstimate_35E8823B3C80D523214EB87358C13998" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_3E808E4F2860B818C45DB87358C15AED" xlink:to="loc_us-gaap_AssetRetirementObligationRevisionOfEstimate_35E8823B3C80D523214EB87358C13998" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetRetirementObligationAccretionExpense" xlink:label="loc_us-gaap_AssetRetirementObligationAccretionExpense_806CF7F757ACDBC43DEAB87358C18AEA" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_3E808E4F2860B818C45DB87358C15AED" xlink:to="loc_us-gaap_AssetRetirementObligationAccretionExpense_806CF7F757ACDBC43DEAB87358C18AEA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetRetirementObligationLiabilitiesIncurred" xlink:label="loc_us-gaap_AssetRetirementObligationLiabilitiesIncurred_6BB93576955313DEFF0EB87358C19C55" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_3E808E4F2860B818C45DB87358C15AED" xlink:to="loc_us-gaap_AssetRetirementObligationLiabilitiesIncurred_6BB93576955313DEFF0EB87358C19C55" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LossContingencyDamagesAwardedValue" xlink:label="loc_us-gaap_LossContingencyDamagesAwardedValue_69D27428918C75763CE5B87358C15F68" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_3E808E4F2860B818C45DB87358C15AED" xlink:to="loc_us-gaap_LossContingencyDamagesAwardedValue_69D27428918C75763CE5B87358C15F68" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_DamagesSoughtInUsdoeClaim" xlink:label="loc_por_DamagesSoughtInUsdoeClaim_267D48B1E617C11CD0F7B87358C1E980" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_4E81FDE8D8ECA539CE41B87358C1CA14" xlink:to="loc_por_DamagesSoughtInUsdoeClaim_267D48B1E617C11CD0F7B87358C1E980" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_AssetRetirementObligationRateRecoveryRelatedToTrojanPlant" xlink:label="loc_por_AssetRetirementObligationRateRecoveryRelatedToTrojanPlant_6E9E274369F3F5AF2A8AB87358C1BFA5" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_4E81FDE8D8ECA539CE41B87358C1CA14" xlink:to="loc_por_AssetRetirementObligationRateRecoveryRelatedToTrojanPlant_6E9E274369F3F5AF2A8AB87358C1BFA5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromDecommissioningFund" xlink:label="loc_us-gaap_ProceedsFromDecommissioningFund_37609569D3229FFB4863B87358C167AD" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_4E81FDE8D8ECA539CE41B87358C1CA14" xlink:to="loc_us-gaap_ProceedsFromDecommissioningFund_37609569D3229FFB4863B87358C167AD" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetRetirementObligationPeriodIncreaseDecrease" xlink:label="loc_us-gaap_AssetRetirementObligationPeriodIncreaseDecrease_C09F5ACCEEDC1929E453B87358C1C061" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_4E81FDE8D8ECA539CE41B87358C1CA14" xlink:to="loc_us-gaap_AssetRetirementObligationPeriodIncreaseDecrease_C09F5ACCEEDC1929E453B87358C1C061" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetRetirementObligationsSignificantChanges" xlink:label="loc_us-gaap_AssetRetirementObligationsSignificantChanges_CCD2256866075711B853B87358C164B4" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_4E81FDE8D8ECA539CE41B87358C1CA14" xlink:to="loc_us-gaap_AssetRetirementObligationsSignificantChanges_CCD2256866075711B853B87358C164B4" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/AssetRetirementObligationsPolicies" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetRetirementObligationDisclosureAbstract" xlink:label="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_844DBE318BCD3DE463A9EADE7E1C57DC" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetRetirementObligationsPolicy" xlink:label="loc_us-gaap_AssetRetirementObligationsPolicy_50126003D2EA8BB805EAEADE7E1C3BA6" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_844DBE318BCD3DE463A9EADE7E1C57DC" xlink:to="loc_us-gaap_AssetRetirementObligationsPolicy_50126003D2EA8BB805EAEADE7E1C3BA6" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/AssetRetirementObligationsTables" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetRetirementObligationDisclosureAbstract" xlink:label="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_4A2D95F83BC1DA1DE78EEADE7EC68504" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfAssetRetirementObligationsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfAssetRetirementObligationsTableTextBlock_423FF7ECAB05C53C9E28EADE7EC62F91" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_4A2D95F83BC1DA1DE78EEADE7EC68504" xlink:to="loc_us-gaap_ScheduleOfAssetRetirementObligationsTableTextBlock_423FF7ECAB05C53C9E28EADE7EC62F91" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock_8773F4BBED385439CEE0EADE7EC6A094" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_4A2D95F83BC1DA1DE78EEADE7EC68504" xlink:to="loc_us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock_8773F4BBED385439CEE0EADE7EC6A094" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/BalanceSheetComponents" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_BalanceSheetComponentsAbstract" xlink:label="loc_por_BalanceSheetComponentsAbstract_F6E582260C13188F59A2EADE7D228613" xlink:type="locator" />
    <loc xlink:href="por-20151231.xsd#por_DetailsOfCertainBalanceSheetAccountsDisclosureTextBlock" xlink:label="loc_por_DetailsOfCertainBalanceSheetAccountsDisclosureTextBlock_023F56C23C61A259771CEADE7D2298A2" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_BalanceSheetComponentsAbstract_F6E582260C13188F59A2EADE7D228613" xlink:to="loc_por_DetailsOfCertainBalanceSheetAccountsDisclosureTextBlock_023F56C23C61A259771CEADE7D2298A2" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/BalanceSheetComponentsAllowanceForUncollectibleAccountsActivityDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_BalanceSheetCompnentsAbstract" xlink:label="loc_por_BalanceSheetCompnentsAbstract_6688EB0C496571E12139EADE7E126D0D" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable" xlink:label="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_2D5523D62C33C2899DF4EADE7E12B034" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_BalanceSheetCompnentsAbstract_6688EB0C496571E12139EADE7E126D0D" xlink:to="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_2D5523D62C33C2899DF4EADE7E12B034" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ValuationAllowancesAndReservesTypeAxis" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesTypeAxis_E8DBC2B86B825164D68CEADE7E1224F0" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_2D5523D62C33C2899DF4EADE7E12B034" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesTypeAxis_E8DBC2B86B825164D68CEADE7E1224F0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ValuationAllowancesAndReservesDomain" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesDomain_A2FF8843CAD4378C7421EADE7E1C7289" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ValuationAllowancesAndReservesTypeAxis_E8DBC2B86B825164D68CEADE7E1224F0" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesDomain_A2FF8843CAD4378C7421EADE7E1C7289" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccountsNotesAndLoansReceivableLineItems" xlink:label="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_3EEB8E66C5FBCA21D577EADE7E1CD09C" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_2D5523D62C33C2899DF4EADE7E12B034" xlink:to="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_3EEB8E66C5FBCA21D577EADE7E1CD09C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_06B797A11CF219F53A9BEADE7E1C0FDA" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_3EEB8E66C5FBCA21D577EADE7E1CD09C" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_06B797A11CF219F53A9BEADE7E1C0FDA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts_F8E87D162C235E92CA29EADE7E1CC531" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_3EEB8E66C5FBCA21D577EADE7E1CD09C" xlink:to="loc_us-gaap_ProvisionForDoubtfulAccounts_F8E87D162C235E92CA29EADE7E1CC531" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs_124567E16CAF2029699CEADE7E1CA66F" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_3EEB8E66C5FBCA21D577EADE7E1CD09C" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs_124567E16CAF2029699CEADE7E1CA66F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_5C3C4014233D540ED918EADE7E1C18AD" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_3EEB8E66C5FBCA21D577EADE7E1CD09C" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_5C3C4014233D540ED918EADE7E1C18AD" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/BalanceSheetComponentsDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_BalanceSheetComponentsAbstract" xlink:label="loc_por_BalanceSheetComponentsAbstract_DDE6AAF80BF886DB722EC8887D52EFD2" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_FDE06DEF5EF483D9D538C8887D523F1E" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_BalanceSheetComponentsAbstract_DDE6AAF80BF886DB722EC8887D52EFD2" xlink:to="loc_us-gaap_StatementTable_FDE06DEF5EF483D9D538C8887D523F1E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_77643DB2BA96317C4955C88C31B055F1" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_FDE06DEF5EF483D9D538C8887D523F1E" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_77643DB2BA96317C4955C88C31B055F1" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_822200BED628301B9AE7C88C327B0838" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_77643DB2BA96317C4955C88C31B055F1" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_822200BED628301B9AE7C88C327B0838" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_JointlyOwnedElectricityGenerationPlantMember" xlink:label="loc_us-gaap_JointlyOwnedElectricityGenerationPlantMember_B3C5654BEF9C58EB7081C88C277463DF" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_822200BED628301B9AE7C88C327B0838" xlink:to="loc_us-gaap_JointlyOwnedElectricityGenerationPlantMember_B3C5654BEF9C58EB7081C88C277463DF" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_B8DEE2CC30B3993A0A16C8887D529BF5" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_FDE06DEF5EF483D9D538C8887D523F1E" xlink:to="loc_us-gaap_StatementClassOfStockAxis_B8DEE2CC30B3993A0A16C8887D529BF5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_E94CCF1526C3BF6134AFC8887D521A5E" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_B8DEE2CC30B3993A0A16C8887D529BF5" xlink:to="loc_us-gaap_ClassOfStockDomain_E94CCF1526C3BF6134AFC8887D521A5E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_607D058818AD1004F3C8C8887D522076" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_FDE06DEF5EF483D9D538C8887D523F1E" xlink:to="loc_us-gaap_StatementLineItems_607D058818AD1004F3C8C8887D522076" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_7942A0A1592E6011B7D5C8887D527593" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_607D058818AD1004F3C8C8887D522076" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_7942A0A1592E6011B7D5C8887D527593" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LossContingencyDamagesAwardedValue" xlink:label="loc_us-gaap_LossContingencyDamagesAwardedValue_6E1271C7B559562A766EC8887D614846" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_607D058818AD1004F3C8C8887D522076" xlink:to="loc_us-gaap_LossContingencyDamagesAwardedValue_6E1271C7B559562A766EC8887D614846" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/BalanceSheetComponentsInvestmentsHeldInTrustDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_BalanceSheetComponentsAbstract" xlink:label="loc_por_BalanceSheetComponentsAbstract_EE913E37AF82A93D85ABEADE7E809C46" xlink:type="locator" />
    <loc xlink:href="por-20151231.xsd#por_InvestmentsHeldInTrustTable" xlink:label="loc_por_InvestmentsHeldInTrustTable_7736532C13B1D96438B8EADE7E804F62" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_BalanceSheetComponentsAbstract_EE913E37AF82A93D85ABEADE7E809C46" xlink:to="loc_por_InvestmentsHeldInTrustTable_7736532C13B1D96438B8EADE7E804F62" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_TrustAxis" xlink:label="loc_por_TrustAxis_2CB47C8482FF2E7E84F3EADE7E80C4E0" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_InvestmentsHeldInTrustTable_7736532C13B1D96438B8EADE7E804F62" xlink:to="loc_por_TrustAxis_2CB47C8482FF2E7E84F3EADE7E80C4E0" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_TrustDomain" xlink:label="loc_por_TrustDomain_F6E94605D9AA4A33C798EADE7E803223" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_TrustAxis_2CB47C8482FF2E7E84F3EADE7E80C4E0" xlink:to="loc_por_TrustDomain_F6E94605D9AA4A33C798EADE7E803223" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_NuclearDecommissioningMember" xlink:label="loc_por_NuclearDecommissioningMember_51A172AAC881E0075034EADE7E806DB5" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_TrustDomain_F6E94605D9AA4A33C798EADE7E803223" xlink:to="loc_por_NuclearDecommissioningMember_51A172AAC881E0075034EADE7E806DB5" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_NonQualifiedBenefitPlansMember" xlink:label="loc_por_NonQualifiedBenefitPlansMember_B7DE41D7896B7BB014A2EADE7E800AE0" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_TrustDomain_F6E94605D9AA4A33C798EADE7E803223" xlink:to="loc_por_NonQualifiedBenefitPlansMember_B7DE41D7896B7BB014A2EADE7E800AE0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_0FA3761F2ED8D9CDD982EADE7E80BD70" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_InvestmentsHeldInTrustTable_7736532C13B1D96438B8EADE7E804F62" xlink:to="loc_us-gaap_StatementLineItems_0FA3761F2ED8D9CDD982EADE7E80BD70" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashEquivalentsAtCarryingValue_B981F740A5BE80D162D2EADE7E80F431" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_0FA3761F2ED8D9CDD982EADE7E80BD70" xlink:to="loc_us-gaap_CashEquivalentsAtCarryingValue_B981F740A5BE80D162D2EADE7E80F431" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MarketableSecuritiesAbstract" xlink:label="loc_us-gaap_MarketableSecuritiesAbstract_B6AFC7439E91111D9CD7EADE7E800C1E" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_0FA3761F2ED8D9CDD982EADE7E80BD70" xlink:to="loc_us-gaap_MarketableSecuritiesAbstract_B6AFC7439E91111D9CD7EADE7E800C1E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MarketableSecuritiesEquitySecurities" xlink:label="loc_us-gaap_MarketableSecuritiesEquitySecurities_1BC0304C899F1B490B3DEADE7E804CE6" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MarketableSecuritiesAbstract_B6AFC7439E91111D9CD7EADE7E800C1E" xlink:to="loc_us-gaap_MarketableSecuritiesEquitySecurities_1BC0304C899F1B490B3DEADE7E804CE6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_DDFEDF095DB770FE19F6EADE7E806175" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MarketableSecuritiesAbstract_B6AFC7439E91111D9CD7EADE7E800C1E" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_DDFEDF095DB770FE19F6EADE7E806175" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashSurrenderValueFairValueDisclosure" xlink:label="loc_us-gaap_CashSurrenderValueFairValueDisclosure_F54B816E101A1EBF8F47EADE7E80C1B7" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_0FA3761F2ED8D9CDD982EADE7E80BD70" xlink:to="loc_us-gaap_CashSurrenderValueFairValueDisclosure_F54B816E101A1EBF8F47EADE7E80C1B7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DecommissioningTrustAssetsAmount" xlink:label="loc_us-gaap_DecommissioningTrustAssetsAmount_E5A4CA439A3A2A6D7C1FEADE7E80AB32" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_0FA3761F2ED8D9CDD982EADE7E80BD70" xlink:to="loc_us-gaap_DecommissioningTrustAssetsAmount_E5A4CA439A3A2A6D7C1FEADE7E80AB32" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetsHeldInTrustNoncurrent" xlink:label="loc_us-gaap_AssetsHeldInTrustNoncurrent_5286874A44C81116BB44EADE7E803EBD" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_0FA3761F2ED8D9CDD982EADE7E80BD70" xlink:to="loc_us-gaap_AssetsHeldInTrustNoncurrent_5286874A44C81116BB44EADE7E803EBD" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/BalanceSheetComponentsScheduleOfOtherAsssetsAndOtherLiabilitiesDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_BalanceSheetComponentsAbstract" xlink:label="loc_por_BalanceSheetComponentsAbstract_072AE812D4A645AF666CEADE7DE07D46" xlink:type="locator" />
    <loc xlink:href="por-20151231.xsd#por_OtherCurrentAssetsAbstract" xlink:label="loc_por_OtherCurrentAssetsAbstract_717A530DFF0987DECFD1EADE7DE0963B" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_BalanceSheetComponentsAbstract_072AE812D4A645AF666CEADE7DE07D46" xlink:to="loc_por_OtherCurrentAssetsAbstract_717A530DFF0987DECFD1EADE7DE0963B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PrepaidExpenseCurrent" xlink:label="loc_us-gaap_PrepaidExpenseCurrent_DFB89B40F1DD08B0D96FEADE7DE01FB9" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_OtherCurrentAssetsAbstract_717A530DFF0987DECFD1EADE7DE0963B" xlink:to="loc_us-gaap_PrepaidExpenseCurrent_DFB89B40F1DD08B0D96FEADE7DE01FB9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredTaxAssetsNetCurrent" xlink:label="loc_us-gaap_DeferredTaxAssetsNetCurrent_06A7E2EEA413CB91DBE6EADE7DE06212" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_OtherCurrentAssetsAbstract_717A530DFF0987DECFD1EADE7DE0963B" xlink:to="loc_us-gaap_DeferredTaxAssetsNetCurrent_06A7E2EEA413CB91DBE6EADE7DE06212" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_Accruedsalestaxrefund" xlink:label="loc_por_Accruedsalestaxrefund_D23DCD3B02B9C4D5B0B4EADE7DE091D3" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_OtherCurrentAssetsAbstract_717A530DFF0987DECFD1EADE7DE0963B" xlink:to="loc_por_Accruedsalestaxrefund_D23DCD3B02B9C4D5B0B4EADE7DE091D3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MarginDepositAssets" xlink:label="loc_us-gaap_MarginDepositAssets_1B2E88644E0FE1880B59EADE7DE0824D" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_OtherCurrentAssetsAbstract_717A530DFF0987DECFD1EADE7DE0963B" xlink:to="loc_us-gaap_MarginDepositAssets_1B2E88644E0FE1880B59EADE7DE0824D" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_RegulatoryAssetsFromPriceRiskManagementActivities" xlink:label="loc_por_RegulatoryAssetsFromPriceRiskManagementActivities_331955DD17910620E6E0EADE7DE03F8B" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_OtherCurrentAssetsAbstract_717A530DFF0987DECFD1EADE7DE0963B" xlink:to="loc_por_RegulatoryAssetsFromPriceRiskManagementActivities_331955DD17910620E6E0EADE7DE03F8B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherAssetsMiscellaneous" xlink:label="loc_us-gaap_OtherAssetsMiscellaneous_9A6347F04264A1F7C09CEADE7DE00103" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_OtherCurrentAssetsAbstract_717A530DFF0987DECFD1EADE7DE0963B" xlink:to="loc_us-gaap_OtherAssetsMiscellaneous_9A6347F04264A1F7C09CEADE7DE00103" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherAssetsCurrent" xlink:label="loc_us-gaap_OtherAssetsCurrent_7F35E888F5C85F72131CEADE7DE0A2E1" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_OtherCurrentAssetsAbstract_717A530DFF0987DECFD1EADE7DE0963B" xlink:to="loc_us-gaap_OtherAssetsCurrent_7F35E888F5C85F72131CEADE7DE0A2E1" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_AccruedExpensesAndOtherCurrentLiabilitiesAbstract" xlink:label="loc_por_AccruedExpensesAndOtherCurrentLiabilitiesAbstract_5EBA85F2620DBE3A904FEADE7DE0A6E8" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_BalanceSheetComponentsAbstract_072AE812D4A645AF666CEADE7DE07D46" xlink:to="loc_por_AccruedExpensesAndOtherCurrentLiabilitiesAbstract_5EBA85F2620DBE3A904FEADE7DE0A6E8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryLiabilityCurrent" xlink:label="loc_us-gaap_RegulatoryLiabilityCurrent_99317EAF01373DA052C3EADE7DE0A442" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_AccruedExpensesAndOtherCurrentLiabilitiesAbstract_5EBA85F2620DBE3A904FEADE7DE0A6E8" xlink:to="loc_us-gaap_RegulatoryLiabilityCurrent_99317EAF01373DA052C3EADE7DE0A442" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_DA05598F82BA87DDB2BCEADE7DE0625F" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_AccruedExpensesAndOtherCurrentLiabilitiesAbstract_5EBA85F2620DBE3A904FEADE7DE0A6E8" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_DA05598F82BA87DDB2BCEADE7DE0625F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InterestPayableCurrent" xlink:label="loc_us-gaap_InterestPayableCurrent_EE5502CC7F7476B49E02EADE7DE04FF1" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_AccruedExpensesAndOtherCurrentLiabilitiesAbstract_5EBA85F2620DBE3A904FEADE7DE0A6E8" xlink:to="loc_us-gaap_InterestPayableCurrent_EE5502CC7F7476B49E02EADE7DE04FF1" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DividendsPayableCurrent" xlink:label="loc_us-gaap_DividendsPayableCurrent_850C884CF9A60EA76D80EADE7DE0A5F2" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_AccruedExpensesAndOtherCurrentLiabilitiesAbstract_5EBA85F2620DBE3A904FEADE7DE0A6E8" xlink:to="loc_us-gaap_DividendsPayableCurrent_850C884CF9A60EA76D80EADE7DE0A5F2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TaxesPayableCurrent" xlink:label="loc_us-gaap_TaxesPayableCurrent_9FDA97A78F32795C2055EADE7DE09559" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_AccruedExpensesAndOtherCurrentLiabilitiesAbstract_5EBA85F2620DBE3A904FEADE7DE0A6E8" xlink:to="loc_us-gaap_TaxesPayableCurrent_9FDA97A78F32795C2055EADE7DE09559" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_OtherCurrentLiabilitiesOther" xlink:label="loc_por_OtherCurrentLiabilitiesOther_923694C407D39DB07C3AEADE7DE08F0C" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_AccruedExpensesAndOtherCurrentLiabilitiesAbstract_5EBA85F2620DBE3A904FEADE7DE0A6E8" xlink:to="loc_por_OtherCurrentLiabilitiesOther_923694C407D39DB07C3AEADE7DE08F0C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherLiabilitiesCurrent" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_BF72CEE6AB3407D94158EADE7DE06A6B" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_AccruedExpensesAndOtherCurrentLiabilitiesAbstract_5EBA85F2620DBE3A904FEADE7DE0A6E8" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_BF72CEE6AB3407D94158EADE7DE06A6B" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/BalanceSheetComponentsTables" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_BalanceSheetComponentsAbstract" xlink:label="loc_por_BalanceSheetComponentsAbstract_A30151A5236FD6931C61EADE7DE00F16" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock" xlink:label="loc_us-gaap_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock_7AC6E715D0CDE9632F0FEADE7DE0E846" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_BalanceSheetComponentsAbstract_A30151A5236FD6931C61EADE7DE00F16" xlink:to="loc_us-gaap_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock_7AC6E715D0CDE9632F0FEADE7DE0E846" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_InvestmentsHeldInTrustTableTextBlock" xlink:label="loc_por_InvestmentsHeldInTrustTableTextBlock_88B52202A913E68AE4ECEADE7DE003AD" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_BalanceSheetComponentsAbstract_A30151A5236FD6931C61EADE7DE00F16" xlink:to="loc_por_InvestmentsHeldInTrustTableTextBlock_88B52202A913E68AE4ECEADE7DE003AD" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfOtherAssetsAndOtherLiabilitiesTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfOtherAssetsAndOtherLiabilitiesTableTextBlock_8D62B38E40C6825FE028EADE7DE06C10" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_BalanceSheetComponentsAbstract_A30151A5236FD6931C61EADE7DE00F16" xlink:to="loc_us-gaap_ScheduleOfOtherAssetsAndOtherLiabilitiesTableTextBlock_8D62B38E40C6825FE028EADE7DE06C10" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/BasisOfPresentation" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_BasisOfPresentationAbstract" xlink:label="loc_por_BasisOfPresentationAbstract_B784386C53994A1A2AB2EADE7DD67FD3" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_6BA8E54524C582F2F61AEADE7DD6EFC1" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_BasisOfPresentationAbstract_B784386C53994A1A2AB2EADE7DD67FD3" xlink:to="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_6BA8E54524C582F2F61AEADE7DD6EFC1" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/BasisOfPresentationBasisOfPresentationPolicies" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_BasisOfPresentationAbstract" xlink:label="loc_por_BasisOfPresentationAbstract_FD473F1DDF822C2C51F5EADE7DE09EC2" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ConsolidationPolicyTextBlock" xlink:label="loc_us-gaap_ConsolidationPolicyTextBlock_BC2072CCB8F098129AFDEADE7DE06285" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_BasisOfPresentationAbstract_FD473F1DDF822C2C51F5EADE7DE09EC2" xlink:to="loc_us-gaap_ConsolidationPolicyTextBlock_BC2072CCB8F098129AFDEADE7DE06285" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/BasisOfPresentationDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_BasisOfPresentationAbstract" xlink:label="loc_por_BasisOfPresentationAbstract_59DCFC637766131D5D0BC8A8AB0D6981" xlink:type="locator" />
    <loc xlink:href="por-20151231.xsd#por_IncorporatedCities" xlink:label="loc_por_IncorporatedCities_1B6F2B4FEF96F7D3FAD7C8A8AB0D1A27" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_BasisOfPresentationAbstract_59DCFC637766131D5D0BC8A8AB0D6981" xlink:to="loc_por_IncorporatedCities_1B6F2B4FEF96F7D3FAD7C8A8AB0D1A27" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_ServiceAreaSqMiles" xlink:label="loc_por_ServiceAreaSqMiles_D537F162FDFA09AC5CD4C8A8AB0D8B02" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_BasisOfPresentationAbstract_59DCFC637766131D5D0BC8A8AB0D6981" xlink:to="loc_por_ServiceAreaSqMiles_D537F162FDFA09AC5CD4C8A8AB0D8B02" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_NumberOfRetailCustomers" xlink:label="loc_por_NumberOfRetailCustomers_83080651C80F1461C037C8A8AB0D9827" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_BasisOfPresentationAbstract_59DCFC637766131D5D0BC8A8AB0D6981" xlink:to="loc_por_NumberOfRetailCustomers_83080651C80F1461C037C8A8AB0D9827" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_ServiceAreaPopulation" xlink:label="loc_por_ServiceAreaPopulation_48DAE76F4D2238877635C8A8AB0DF014" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_BasisOfPresentationAbstract_59DCFC637766131D5D0BC8A8AB0D6981" xlink:to="loc_por_ServiceAreaPopulation_48DAE76F4D2238877635C8A8AB0DF014" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_PercentOfStatesPopulation" xlink:label="loc_por_PercentOfStatesPopulation_9D0C4A79E9880BC979FCC8A8AB0DAD1D" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_BasisOfPresentationAbstract_59DCFC637766131D5D0BC8A8AB0D6981" xlink:to="loc_por_PercentOfStatesPopulation_9D0C4A79E9880BC979FCC8A8AB0DAD1D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityNumberOfEmployees" xlink:label="loc_dei_EntityNumberOfEmployees_54BCF01045B4521937FEC8A8AB0D63AC" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_BasisOfPresentationAbstract_59DCFC637766131D5D0BC8A8AB0D6981" xlink:to="loc_dei_EntityNumberOfEmployees_54BCF01045B4521937FEC8A8AB0D63AC" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_NumberOfUnionEmployees" xlink:label="loc_por_NumberOfUnionEmployees_E674A8302F7E46350F69C8A8AB0D802A" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_BasisOfPresentationAbstract_59DCFC637766131D5D0BC8A8AB0D6981" xlink:to="loc_por_NumberOfUnionEmployees_E674A8302F7E46350F69C8A8AB0D802A" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_NumberOfUnionEmployeesSubjectToAgreementA" xlink:label="loc_por_NumberOfUnionEmployeesSubjectToAgreementA_51D47D6EC51F159E6757C8A8AB0D3C88" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_BasisOfPresentationAbstract_59DCFC637766131D5D0BC8A8AB0D6981" xlink:to="loc_por_NumberOfUnionEmployeesSubjectToAgreementA_51D47D6EC51F159E6757C8A8AB0D3C88" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_NumberOfUnionEmployeesSubjectToAgreementB" xlink:label="loc_por_NumberOfUnionEmployeesSubjectToAgreementB_71514FD73001AEC50DBBC8A8AB0DAA56" xlink:type="locator" />
    <presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_BasisOfPresentationAbstract_59DCFC637766131D5D0BC8A8AB0D6981" xlink:to="loc_por_NumberOfUnionEmployeesSubjectToAgreementB_71514FD73001AEC50DBBC8A8AB0DAA56" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_Revenueoverstatment" xlink:label="loc_por_Revenueoverstatment_AB782E75FF1509E44C67C8A8AB0D3612" xlink:type="locator" />
    <presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_BasisOfPresentationAbstract_59DCFC637766131D5D0BC8A8AB0D6981" xlink:to="loc_por_Revenueoverstatment_AB782E75FF1509E44C67C8A8AB0D3612" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/CommitmentsAndGuarantees" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_A40C36B10DADD20487E8EADE7D36DA36" xlink:type="locator" />
    <loc xlink:href="por-20151231.xsd#por_CommitmentsAndGuaranteesTextBlock" xlink:label="loc_por_CommitmentsAndGuaranteesTextBlock_341B22076E3B61BEEFE3EADE7D3695BD" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_A40C36B10DADD20487E8EADE7D36DA36" xlink:to="loc_por_CommitmentsAndGuaranteesTextBlock_341B22076E3B61BEEFE3EADE7D3695BD" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/CommitmentsAndGuaranteesDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_0ABA7A439E73F39D5549B2567749E20C" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationTable" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationTable_C01BCE6A0C40E038F58EB256774B976E" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_0ABA7A439E73F39D5549B2567749E20C" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationTable_C01BCE6A0C40E038F58EB256774B976E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis_08F7745647C67AE03ABDB256774B7589" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationTable_C01BCE6A0C40E038F58EB256774B976E" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis_08F7745647C67AE03ABDB256774B7589" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain" xlink:label="loc_us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain_FFE05448B5B1A63275CDB256774B6271" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis_08F7745647C67AE03ABDB256774B7589" xlink:to="loc_us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain_FFE05448B5B1A63275CDB256774B6271" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems_6CED340FA8200E139699B256774BF991" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationTable_C01BCE6A0C40E038F58EB256774B976E" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems_6CED340FA8200E139699B256774BF991" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherCommitment" xlink:label="loc_us-gaap_OtherCommitment_76B4F0F4CDC624DF53A7B256774BD3D4" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems_6CED340FA8200E139699B256774BF991" xlink:to="loc_us-gaap_OtherCommitment_76B4F0F4CDC624DF53A7B256774BD3D4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherCommitmentDueInNextTwelveMonths" xlink:label="loc_us-gaap_OtherCommitmentDueInNextTwelveMonths_490849EE68033B05275AB256774B61C6" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems_6CED340FA8200E139699B256774BF991" xlink:to="loc_us-gaap_OtherCommitmentDueInNextTwelveMonths_490849EE68033B05275AB256774B61C6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherCommitmentDueInSecondYear" xlink:label="loc_us-gaap_OtherCommitmentDueInSecondYear_26BC97B52121A7E5CCFDB256774B3FC7" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems_6CED340FA8200E139699B256774BF991" xlink:to="loc_us-gaap_OtherCommitmentDueInSecondYear_26BC97B52121A7E5CCFDB256774B3FC7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherCommitmentDueInThirdYear" xlink:label="loc_us-gaap_OtherCommitmentDueInThirdYear_38312F8837A565D9FC7CB256774B7793" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems_6CED340FA8200E139699B256774BF991" xlink:to="loc_us-gaap_OtherCommitmentDueInThirdYear_38312F8837A565D9FC7CB256774B7793" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears_4E751BD5C24BE183241EB256774BF76A" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems_6CED340FA8200E139699B256774BF991" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears_4E751BD5C24BE183241EB256774BF76A" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_MaximumPercentageOfOutputPossibleyAllocated" xlink:label="loc_por_MaximumPercentageOfOutputPossibleyAllocated_8A6F46E8AB50BDCE0BBDB256774C9662" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems_6CED340FA8200E139699B256774BF991" xlink:to="loc_por_MaximumPercentageOfOutputPossibleyAllocated_8A6F46E8AB50BDCE0BBDB256774C9662" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ContractualObligation" xlink:label="loc_us-gaap_ContractualObligation_038517F143AE15864FBDB2595649F9AD" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems_6CED340FA8200E139699B256774BF991" xlink:to="loc_us-gaap_ContractualObligation_038517F143AE15864FBDB2595649F9AD" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LeaseAndRentalExpense" xlink:label="loc_us-gaap_LeaseAndRentalExpense_8D32CF006E04F0A28B80B256774CC865" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems_6CED340FA8200E139699B256774BF991" xlink:to="loc_us-gaap_LeaseAndRentalExpense_8D32CF006E04F0A28B80B256774CC865" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent_3D1179B2A1855CC6CB73B256774C71BC" xlink:type="locator" />
    <presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems_6CED340FA8200E139699B256774BF991" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent_3D1179B2A1855CC6CB73B256774C71BC" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears_BCE4B1BFB792913725C6B256774C4DC0" xlink:type="locator" />
    <presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems_6CED340FA8200E139699B256774BF991" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears_BCE4B1BFB792913725C6B256774C4DC0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears_D30E21905F2322E1D036B256774C4333" xlink:type="locator" />
    <presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems_6CED340FA8200E139699B256774BF991" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears_D30E21905F2322E1D036B256774C4333" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingLeasesRentExpenseSubleaseRentals1" xlink:label="loc_us-gaap_OperatingLeasesRentExpenseSubleaseRentals1_8BBDD067CFA153B0ADDDB256774CA2A8" xlink:type="locator" />
    <presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems_6CED340FA8200E139699B256774BF991" xlink:to="loc_us-gaap_OperatingLeasesRentExpenseSubleaseRentals1_8BBDD067CFA153B0ADDDB256774CA2A8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFourYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFourYears_0D3554B4DF60A313EFDCB256774C12AA" xlink:type="locator" />
    <presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems_6CED340FA8200E139699B256774BF991" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFourYears_0D3554B4DF60A313EFDCB256774C12AA" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/CommitmentsAndGuaranteesPolicies" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_22BD76BBC71B7D72F44BEADE7E9EA969" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MinimumGuaranteesPolicy" xlink:label="loc_us-gaap_MinimumGuaranteesPolicy_FACD6368E93C9D0A225EEADE7E9EB09E" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_22BD76BBC71B7D72F44BEADE7E9EA969" xlink:to="loc_us-gaap_MinimumGuaranteesPolicy_FACD6368E93C9D0A225EEADE7E9EB09E" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/CommitmentsAndGuaranteesSchduleOfLongTermContractsForPurchaseOfElectricPowerDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_CommitmentsAndGuaranteesAbstract" xlink:label="loc_por_CommitmentsAndGuaranteesAbstract_DF58D67F3A4727A9806AEADE7E125FE3" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermContractsForPurchaseOfElectricPowerTable" xlink:label="loc_us-gaap_LongTermContractsForPurchaseOfElectricPowerTable_37A57196EA1EF0AC9427EADE7E120296" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_CommitmentsAndGuaranteesAbstract_DF58D67F3A4727A9806AEADE7E125FE3" xlink:to="loc_us-gaap_LongTermContractsForPurchaseOfElectricPowerTable_37A57196EA1EF0AC9427EADE7E120296" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis" xlink:label="loc_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_24F48087251AF8B8821CEADE7E12E6F4" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermContractsForPurchaseOfElectricPowerTable_37A57196EA1EF0AC9427EADE7E120296" xlink:to="loc_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_24F48087251AF8B8821CEADE7E12E6F4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain" xlink:label="loc_us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_CCF8C3D7DE18C852EF4DEADE7E121226" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_24F48087251AF8B8821CEADE7E12E6F4" xlink:to="loc_us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_CCF8C3D7DE18C852EF4DEADE7E121226" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_PriestRapidsAndWanapumMember" xlink:label="loc_por_PriestRapidsAndWanapumMember_DEA39CC59D138858A762EADE7E125528" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_CCF8C3D7DE18C852EF4DEADE7E121226" xlink:to="loc_por_PriestRapidsAndWanapumMember_DEA39CC59D138858A762EADE7E125528" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_WellsMember" xlink:label="loc_por_WellsMember_D5FF8BA4880ED7BBC71CEADE7E12B22A" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_CCF8C3D7DE18C852EF4DEADE7E121226" xlink:to="loc_por_WellsMember_D5FF8BA4880ED7BBC71CEADE7E12B22A" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_PortlandHydroMember" xlink:label="loc_por_PortlandHydroMember_B8C7F37CBD7F486DFA5FEADE7E12C3FF" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_CCF8C3D7DE18C852EF4DEADE7E121226" xlink:to="loc_por_PortlandHydroMember_B8C7F37CBD7F486DFA5FEADE7E12C3FF" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermContractForPurchaseOfElectricPowerLineItems" xlink:label="loc_us-gaap_LongTermContractForPurchaseOfElectricPowerLineItems_6ADFB365A18BD7F66301EADE7E123657" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermContractsForPurchaseOfElectricPowerTable_37A57196EA1EF0AC9427EADE7E120296" xlink:to="loc_us-gaap_LongTermContractForPurchaseOfElectricPowerLineItems_6ADFB365A18BD7F66301EADE7E123657" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_RevenueBondsIssuedByPublicUtilityDistricts" xlink:label="loc_por_RevenueBondsIssuedByPublicUtilityDistricts_74209B1884229395E273EADE7E1263EB" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermContractForPurchaseOfElectricPowerLineItems_6ADFB365A18BD7F66301EADE7E123657" xlink:to="loc_por_RevenueBondsIssuedByPublicUtilityDistricts_74209B1884229395E273EADE7E1263EB" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_PgeShareOfOutput" xlink:label="loc_por_PgeShareOfOutput_D2CC22490B95E586F495EADE7E122850" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermContractForPurchaseOfElectricPowerLineItems_6ADFB365A18BD7F66301EADE7E123657" xlink:to="loc_por_PgeShareOfOutput_D2CC22490B95E586F495EADE7E122850" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_PgePortionOfCapacity" xlink:label="loc_por_PgePortionOfCapacity_E1BC6689BE4341B46EACEADE7E12C182" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermContractForPurchaseOfElectricPowerLineItems_6ADFB365A18BD7F66301EADE7E123657" xlink:to="loc_por_PgePortionOfCapacity_E1BC6689BE4341B46EACEADE7E12C182" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermContractForPurchaseOfElectricPowerDateOfContractExpiration" xlink:label="loc_us-gaap_LongTermContractForPurchaseOfElectricPowerDateOfContractExpiration_70983C569CAF2277CADAEADE7E12E94A" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermContractForPurchaseOfElectricPowerLineItems_6ADFB365A18BD7F66301EADE7E123657" xlink:to="loc_us-gaap_LongTermContractForPurchaseOfElectricPowerDateOfContractExpiration_70983C569CAF2277CADAEADE7E12E94A" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CommitmentCosts" xlink:label="loc_por_CommitmentCosts_6F9AAAA84F41B88A000EEADE7E12588B" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermContractForPurchaseOfElectricPowerLineItems_6ADFB365A18BD7F66301EADE7E123657" xlink:to="loc_por_CommitmentCosts_6F9AAAA84F41B88A000EEADE7E12588B" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/CommitmentsAndGuaranteesTables" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_FAB220472FA59C6DFE5DEADE7E586D95" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermPurchaseCommitmentTable" xlink:label="loc_us-gaap_LongTermPurchaseCommitmentTable_7951A162521B92C14078EADE7E584315" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_FAB220472FA59C6DFE5DEADE7E586D95" xlink:to="loc_us-gaap_LongTermPurchaseCommitmentTable_7951A162521B92C14078EADE7E584315" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis" xlink:label="loc_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_95FA1EC8A87F1EF5336EEADE7E58B47F" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentTable_7951A162521B92C14078EADE7E584315" xlink:to="loc_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_95FA1EC8A87F1EF5336EEADE7E58B47F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain" xlink:label="loc_us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_0D0B20CA628FF4883B69EADE7E58D66E" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_95FA1EC8A87F1EF5336EEADE7E58B47F" xlink:to="loc_us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_0D0B20CA628FF4883B69EADE7E58D66E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermPurchaseCommitmentLineItems" xlink:label="loc_us-gaap_LongTermPurchaseCommitmentLineItems_2DBEC1AE66AE924B8F37EADE7E58C1FB" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentTable_7951A162521B92C14078EADE7E584315" xlink:to="loc_us-gaap_LongTermPurchaseCommitmentLineItems_2DBEC1AE66AE924B8F37EADE7E58C1FB" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationsDisclosureTextBlock" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationsDisclosureTextBlock_B8B430037BA204399A32EADE7E581454" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentLineItems_2DBEC1AE66AE924B8F37EADE7E58C1FB" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationsDisclosureTextBlock_B8B430037BA204399A32EADE7E581454" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfLongTermContractsForPurchaseOfElectricPowerTextBlock" xlink:label="loc_us-gaap_ScheduleOfLongTermContractsForPurchaseOfElectricPowerTextBlock_A4EED555D93BA453E58CEADE7E581102" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentLineItems_2DBEC1AE66AE924B8F37EADE7E58C1FB" xlink:to="loc_us-gaap_ScheduleOfLongTermContractsForPurchaseOfElectricPowerTextBlock_A4EED555D93BA453E58CEADE7E581102" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/CommitmentsAndGuaranteesUnrecordedUnconditionalPurchaseObligationsDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_CommitmentsAndGuaranteesAbstract" xlink:label="loc_por_CommitmentsAndGuaranteesAbstract_7F3C386A68F55CAF3999EADE7E6C8325" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationTable" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationTable_DB57C440086857F220D0EADE7E6C91AF" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_CommitmentsAndGuaranteesAbstract_7F3C386A68F55CAF3999EADE7E6C8325" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationTable_DB57C440086857F220D0EADE7E6C91AF" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis_ECBC056E42516EAEF5EBEADE7E6CF954" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationTable_DB57C440086857F220D0EADE7E6C91AF" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis_ECBC056E42516EAEF5EBEADE7E6CF954" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain" xlink:label="loc_us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain_A99526FA208A421497AFEADE7E6C2FB7" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis_ECBC056E42516EAEF5EBEADE7E6CF954" xlink:to="loc_us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain_A99526FA208A421497AFEADE7E6C2FB7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CapitalAdditionsMember" xlink:label="loc_us-gaap_CapitalAdditionsMember_BD116B8911F4995C07B2EADE7E6C0684" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain_A99526FA208A421497AFEADE7E6C2FB7" xlink:to="loc_us-gaap_CapitalAdditionsMember_BD116B8911F4995C07B2EADE7E6C0684" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermContractForPurchaseOfElectricPowerDomain" xlink:label="loc_us-gaap_LongTermContractForPurchaseOfElectricPowerDomain_B3D75A20692263AABD81EADE7E6C5A3B" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain_A99526FA208A421497AFEADE7E6C2FB7" xlink:to="loc_us-gaap_LongTermContractForPurchaseOfElectricPowerDomain_B3D75A20692263AABD81EADE7E6C5A3B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ElectricTransmissionMember" xlink:label="loc_us-gaap_ElectricTransmissionMember_BA2FA722E04339B5FE0CEADE7E6CE9F8" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain_A99526FA208A421497AFEADE7E6C2FB7" xlink:to="loc_us-gaap_ElectricTransmissionMember_BA2FA722E04339B5FE0CEADE7E6CE9F8" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_PublicUtilityDistrictsMember" xlink:label="loc_por_PublicUtilityDistrictsMember_BCC43870760482298C7DEADE7E6C1ABF" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain_A99526FA208A421497AFEADE7E6C2FB7" xlink:to="loc_por_PublicUtilityDistrictsMember_BCC43870760482298C7DEADE7E6C1ABF" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesInventoryFuelMember" xlink:label="loc_us-gaap_PublicUtilitiesInventoryFuelMember_4ECDD959D811FD0935B6EADE7E6CBE54" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain_A99526FA208A421497AFEADE7E6C2FB7" xlink:to="loc_us-gaap_PublicUtilitiesInventoryFuelMember_4ECDD959D811FD0935B6EADE7E6CBE54" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CoalSupplyAgreementsMember" xlink:label="loc_us-gaap_CoalSupplyAgreementsMember_895A3BB9AC158822CAD4EADE7E6C2A27" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain_A99526FA208A421497AFEADE7E6C2FB7" xlink:to="loc_us-gaap_CoalSupplyAgreementsMember_895A3BB9AC158822CAD4EADE7E6C2A27" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LeaseAgreementsMember" xlink:label="loc_us-gaap_LeaseAgreementsMember_C8AD80868BFA385BFF81EADE7E6C7906" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain_A99526FA208A421497AFEADE7E6C2FB7" xlink:to="loc_us-gaap_LeaseAgreementsMember_C8AD80868BFA385BFF81EADE7E6C7906" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommitmentsMember" xlink:label="loc_us-gaap_CommitmentsMember_680EA7BFF7A1D96A509CEADE7E6C41DA" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain_A99526FA208A421497AFEADE7E6C2FB7" xlink:to="loc_us-gaap_CommitmentsMember_680EA7BFF7A1D96A509CEADE7E6C41DA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems_041B4EE70D406AB6AA4BEADE7E6C2EEC" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationTable_DB57C440086857F220D0EADE7E6C91AF" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems_041B4EE70D406AB6AA4BEADE7E6C2EEC" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount_31D1E5E15490BF2562EFEADE7E6CFDD8" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems_041B4EE70D406AB6AA4BEADE7E6C2EEC" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount_31D1E5E15490BF2562EFEADE7E6CFDD8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary_BB9BCB70E311DE67C7ABEADE7E6C2EED" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems_041B4EE70D406AB6AA4BEADE7E6C2EEC" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary_BB9BCB70E311DE67C7ABEADE7E6C2EED" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary_9BBFF09A5A5C36070300EADE7E6C2BA5" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems_041B4EE70D406AB6AA4BEADE7E6C2EEC" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary_9BBFF09A5A5C36070300EADE7E6C2BA5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary_97CEFFCE2D1598558DC0EADE7E6CABC4" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems_041B4EE70D406AB6AA4BEADE7E6C2EEC" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary_97CEFFCE2D1598558DC0EADE7E6CABC4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary_1657EC92706F18E85F16EADE7E6C5E96" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems_041B4EE70D406AB6AA4BEADE7E6C2EEC" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary_1657EC92706F18E85F16EADE7E6C5E96" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary_DFC2D4E21C7B8A50A802EADE7E6CDFCA" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems_041B4EE70D406AB6AA4BEADE7E6C2EEC" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary_DFC2D4E21C7B8A50A802EADE7E6CDFCA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationDueAfterFiveYears" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationDueAfterFiveYears_1A437DE50175D80B3982EADE7E6CA204" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems_041B4EE70D406AB6AA4BEADE7E6C2EEC" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationDueAfterFiveYears_1A437DE50175D80B3982EADE7E6CA204" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/ConsolidatedBalanceSheets" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_4F76F53011566E241309AE7A029F3E09" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_C4E09299E08C5E12F9EEAE7A029F0686" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_4F76F53011566E241309AE7A029F3E09" xlink:to="loc_us-gaap_StatementScenarioAxis_C4E09299E08C5E12F9EEAE7A029F0686" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_B155FD770E9D6D7490BEAE7A029F64BF" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_C4E09299E08C5E12F9EEAE7A029F0686" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_B155FD770E9D6D7490BEAE7A029F64BF" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_8F37E68DB1B7420E6E98AE7A029F29D3" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_4F76F53011566E241309AE7A029F3E09" xlink:to="loc_us-gaap_StatementLineItems_8F37E68DB1B7420E6E98AE7A029F29D3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="loc_us-gaap_AssetsAbstract_8C90F385CC737D312322AE7A029F6A59" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_8F37E68DB1B7420E6E98AE7A029F29D3" xlink:to="loc_us-gaap_AssetsAbstract_8C90F385CC737D312322AE7A029F6A59" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="loc_us-gaap_AssetsCurrentAbstract_2E16AA252821EF59A022AE7A029F5C86" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_8C90F385CC737D312322AE7A029F6A59" xlink:to="loc_us-gaap_AssetsCurrentAbstract_2E16AA252821EF59A022AE7A029F5C86" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_A34F6DDE6F44509F9B64AE7A029FED02" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_2E16AA252821EF59A022AE7A029F5C86" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_A34F6DDE6F44509F9B64AE7A029FED02" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_5D958120B7E6DD746B56AE7A029F096E" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_2E16AA252821EF59A022AE7A029F5C86" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_5D958120B7E6DD746B56AE7A029F096E" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_UnbilledRevenue" xlink:label="loc_por_UnbilledRevenue_1ED19E859512ACD02434AE7A029F3D52" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_2E16AA252821EF59A022AE7A029F5C86" xlink:to="loc_por_UnbilledRevenue_1ED19E859512ACD02434AE7A029F3D52" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EnergyRelatedInventoryAbstract" xlink:label="loc_us-gaap_EnergyRelatedInventoryAbstract_2155B7DFB1BF463CDEC4AE7A029FF407" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_2E16AA252821EF59A022AE7A029F5C86" xlink:to="loc_us-gaap_EnergyRelatedInventoryAbstract_2155B7DFB1BF463CDEC4AE7A029FF407" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherInventorySupplies" xlink:label="loc_us-gaap_OtherInventorySupplies_A1C154483049F2F9199EAE7A029F03CD" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EnergyRelatedInventoryAbstract_2155B7DFB1BF463CDEC4AE7A029FF407" xlink:to="loc_us-gaap_OtherInventorySupplies_A1C154483049F2F9199EAE7A029F03CD" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EnergyRelatedInventory" xlink:label="loc_us-gaap_EnergyRelatedInventory_32667C24D55C6F376200AE7A029F6935" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EnergyRelatedInventoryAbstract_2155B7DFB1BF463CDEC4AE7A029FF407" xlink:to="loc_us-gaap_EnergyRelatedInventory_32667C24D55C6F376200AE7A029F6935" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetsCurrent" xlink:label="loc_us-gaap_RegulatoryAssetsCurrent_1D06CA066EF36D8D7EACAE7A029F58F8" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_2E16AA252821EF59A022AE7A029F5C86" xlink:to="loc_us-gaap_RegulatoryAssetsCurrent_1D06CA066EF36D8D7EACAE7A029F58F8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherAssetsCurrent" xlink:label="loc_us-gaap_OtherAssetsCurrent_6891A8D7E9AFD9031E11AE7A029F1FFA" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_2E16AA252821EF59A022AE7A029F5C86" xlink:to="loc_us-gaap_OtherAssetsCurrent_6891A8D7E9AFD9031E11AE7A029F1FFA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaap_AssetsCurrent_1D25733BCBABD40818CAAE7A029FA986" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_2E16AA252821EF59A022AE7A029F5C86" xlink:to="loc_us-gaap_AssetsCurrent_1D25733BCBABD40818CAAE7A029FA986" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNetAbstract" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNetAbstract_90A8D940847B3F1DACC6AE7A029F577D" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_8C90F385CC737D312322AE7A029F6A59" xlink:to="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNetAbstract_90A8D940847B3F1DACC6AE7A029F577D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing_73381A0FC64E85984C1FAE7A029F4664" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNetAbstract_90A8D940847B3F1DACC6AE7A029F577D" xlink:to="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing_73381A0FC64E85984C1FAE7A029F4664" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentTransmission" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentTransmission_091E30C921380CC823C4AE7A029F6745" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNetAbstract_90A8D940847B3F1DACC6AE7A029F577D" xlink:to="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentTransmission_091E30C921380CC823C4AE7A029F6745" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentDistribution" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentDistribution_09A7543FD22A16A55E2AAE7A029FA717" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNetAbstract_90A8D940847B3F1DACC6AE7A029F577D" xlink:to="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentDistribution_09A7543FD22A16A55E2AAE7A029FA717" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_PublicUtilitiesPropertyPlantAndEquipmentGeneral" xlink:label="loc_por_PublicUtilitiesPropertyPlantAndEquipmentGeneral_11011D0D2E4463F158A6AE7A029F2339" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNetAbstract_90A8D940847B3F1DACC6AE7A029F577D" xlink:to="loc_por_PublicUtilitiesPropertyPlantAndEquipmentGeneral_11011D0D2E4463F158A6AE7A029F2339" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_PublicUtilitiesPropertyPlantAndEquipmentIntangible" xlink:label="loc_por_PublicUtilitiesPropertyPlantAndEquipmentIntangible_B5FF7145ED8168080BE7AE7A029F6BE1" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNetAbstract_90A8D940847B3F1DACC6AE7A029F577D" xlink:to="loc_por_PublicUtilitiesPropertyPlantAndEquipmentIntangible_B5FF7145ED8168080BE7AE7A029F6BE1" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress_22CD3742F377ECCA3509AE7A029F3425" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNetAbstract_90A8D940847B3F1DACC6AE7A029F577D" xlink:to="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress_22CD3742F377ECCA3509AE7A029F3425" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_6484CC1E3D4AAD51E031AE7A029F0D1B" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNetAbstract_90A8D940847B3F1DACC6AE7A029F577D" xlink:to="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_6484CC1E3D4AAD51E031AE7A029F0D1B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_81F8F897294E6904F10BAE7A029FE836" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNetAbstract_90A8D940847B3F1DACC6AE7A029F577D" xlink:to="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_81F8F897294E6904F10BAE7A029FE836" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_D1CB1D760BB967564215AE7A029FCAC0" xlink:type="locator" />
    <presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNetAbstract_90A8D940847B3F1DACC6AE7A029F577D" xlink:to="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_D1CB1D760BB967564215AE7A029FCAC0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetsNoncurrent" xlink:label="loc_us-gaap_RegulatoryAssetsNoncurrent_FFD3250D1B6B2F64B3E9AE7A029FED34" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_8C90F385CC737D312322AE7A029F6A59" xlink:to="loc_us-gaap_RegulatoryAssetsNoncurrent_FFD3250D1B6B2F64B3E9AE7A029FED34" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DecommissioningTrustAssetsAmount" xlink:label="loc_us-gaap_DecommissioningTrustAssetsAmount_7DBCC4BCA5DA01734A08AE7A029FB2AB" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_8C90F385CC737D312322AE7A029F6A59" xlink:to="loc_us-gaap_DecommissioningTrustAssetsAmount_7DBCC4BCA5DA01734A08AE7A029FB2AB" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetsHeldInTrustNoncurrent" xlink:label="loc_us-gaap_AssetsHeldInTrustNoncurrent_BAFAAE54D074184A12A2AE7A029F59A3" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_8C90F385CC737D312322AE7A029F6A59" xlink:to="loc_us-gaap_AssetsHeldInTrustNoncurrent_BAFAAE54D074184A12A2AE7A029F59A3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_0F27A66BE7C1C6DCB3DDAE7A029F4363" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_8C90F385CC737D312322AE7A029F6A59" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_0F27A66BE7C1C6DCB3DDAE7A029F4363" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_FC5958C93A32AE206B5EAE7A029F5755" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_8C90F385CC737D312322AE7A029F6A59" xlink:to="loc_us-gaap_Assets_FC5958C93A32AE206B5EAE7A029F5755" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_C1BB3FA128D4DBC11DF7AE7A029FF55C" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_8F37E68DB1B7420E6E98AE7A029F29D3" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_C1BB3FA128D4DBC11DF7AE7A029FF55C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract_905A2B96B909F736BD3EAE7A029FB4EF" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_C1BB3FA128D4DBC11DF7AE7A029FF55C" xlink:to="loc_us-gaap_LiabilitiesCurrentAbstract_905A2B96B909F736BD3EAE7A029FB4EF" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_F54ED50AC9CBD67D34BBAE7A029FC9AD" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_905A2B96B909F736BD3EAE7A029FB4EF" xlink:to="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_F54ED50AC9CBD67D34BBAE7A029FC9AD" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeLiabilitiesCurrent" xlink:label="loc_us-gaap_DerivativeLiabilitiesCurrent_EC355DE734FF4185B58DAE7A029FAF1C" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_905A2B96B909F736BD3EAE7A029FB4EF" xlink:to="loc_us-gaap_DerivativeLiabilitiesCurrent_EC355DE734FF4185B58DAE7A029FAF1C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommercialPaper" xlink:label="loc_us-gaap_CommercialPaper_EE6C89294AB2E47B60F2AE7A029F062E" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_905A2B96B909F736BD3EAE7A029FB4EF" xlink:to="loc_us-gaap_CommercialPaper_EE6C89294AB2E47B60F2AE7A029F062E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtCurrent" xlink:label="loc_us-gaap_LongTermDebtCurrent_2AC8365D922D6C0C4BF9AE7A029F6794" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_905A2B96B909F736BD3EAE7A029FB4EF" xlink:to="loc_us-gaap_LongTermDebtCurrent_2AC8365D922D6C0C4BF9AE7A029F6794" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherLiabilitiesCurrent" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_E8B306380262AF5B0061AE7A029F58A4" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_905A2B96B909F736BD3EAE7A029FB4EF" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_E8B306380262AF5B0061AE7A029F58A4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent_DFA21D6456ACE6658F9BAE7A02AFCFEB" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_905A2B96B909F736BD3EAE7A029FB4EF" xlink:to="loc_us-gaap_LiabilitiesCurrent_DFA21D6456ACE6658F9BAE7A02AFCFEB" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_5DAFFCB5AED2565AFB19AE7A02AFA6F3" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_C1BB3FA128D4DBC11DF7AE7A029FF55C" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_5DAFFCB5AED2565AFB19AE7A02AFA6F3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryLiabilityNoncurrent" xlink:label="loc_us-gaap_RegulatoryLiabilityNoncurrent_05EBB38E73B0D6468EA3AE7A02AF61E7" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_C1BB3FA128D4DBC11DF7AE7A029FF55C" xlink:to="loc_us-gaap_RegulatoryLiabilityNoncurrent_05EBB38E73B0D6468EA3AE7A02AF61E7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredTaxLiabilitiesNoncurrent" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesNoncurrent_D76596BFAEB5B3B3DEC0AE7A02AF2B2C" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_C1BB3FA128D4DBC11DF7AE7A029FF55C" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesNoncurrent_D76596BFAEB5B3B3DEC0AE7A02AF2B2C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent" xlink:label="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_EBA17D13EA55BE309FBCAE7A02AFBE1D" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_C1BB3FA128D4DBC11DF7AE7A029FF55C" xlink:to="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_EBA17D13EA55BE309FBCAE7A02AFBE1D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeLiabilitiesNoncurrent" xlink:label="loc_us-gaap_DerivativeLiabilitiesNoncurrent_E94649034A72DA0E5A91AE7A02AFFD9F" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_C1BB3FA128D4DBC11DF7AE7A029FF55C" xlink:to="loc_us-gaap_DerivativeLiabilitiesNoncurrent_E94649034A72DA0E5A91AE7A02AFFD9F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetRetirementObligation" xlink:label="loc_us-gaap_AssetRetirementObligation_04EE6EF9AF3290E0A2E0AE7A02AF057A" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_C1BB3FA128D4DBC11DF7AE7A029FF55C" xlink:to="loc_us-gaap_AssetRetirementObligation_04EE6EF9AF3290E0A2E0AE7A02AF057A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent" xlink:label="loc_us-gaap_OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent_8F81251437D6DF2353AAAE7A02AFFC12" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_C1BB3FA128D4DBC11DF7AE7A029FF55C" xlink:to="loc_us-gaap_OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent_8F81251437D6DF2353AAAE7A02AFFC12" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_AAA05FF536CB14B2794BAE7A02AF99B9" xlink:type="locator" />
    <presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_C1BB3FA128D4DBC11DF7AE7A029FF55C" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_AAA05FF536CB14B2794BAE7A02AF99B9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaap_Liabilities_4E0AF97912C3E38D0084AE7A02AF842A" xlink:type="locator" />
    <presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_C1BB3FA128D4DBC11DF7AE7A029FF55C" xlink:to="loc_us-gaap_Liabilities_4E0AF97912C3E38D0084AE7A02AF842A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="loc_us-gaap_CommitmentsAndContingencies_A8429D91FD8368CADC74AE7A02AFABAD" xlink:type="locator" />
    <presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_C1BB3FA128D4DBC11DF7AE7A029FF55C" xlink:to="loc_us-gaap_CommitmentsAndContingencies_A8429D91FD8368CADC74AE7A02AFABAD" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaap_EquityAbstract_80E18FFF065E6C243B42AE7A02AFEAB6" xlink:type="locator" />
    <presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_C1BB3FA128D4DBC11DF7AE7A029FF55C" xlink:to="loc_us-gaap_EquityAbstract_80E18FFF065E6C243B42AE7A02AFEAB6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="loc_us-gaap_StockholdersEquityAbstract_7DBB42CBFC980A849265AE7A02AF2566" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_80E18FFF065E6C243B42AE7A02AFEAB6" xlink:to="loc_us-gaap_StockholdersEquityAbstract_7DBB42CBFC980A849265AE7A02AF2566" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PreferredStockValue" xlink:label="loc_us-gaap_PreferredStockValue_8793B9C4C314CF3B0962AE7A02AFA243" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_7DBB42CBFC980A849265AE7A02AF2566" xlink:to="loc_us-gaap_PreferredStockValue_8793B9C4C314CF3B0962AE7A02AFA243" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockValue" xlink:label="loc_us-gaap_CommonStockValue_47F98515C84C432F9B80AE7A02AF2EFB" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_7DBB42CBFC980A849265AE7A02AF2566" xlink:to="loc_us-gaap_CommonStockValue_47F98515C84C432F9B80AE7A02AF2EFB" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_8931136DC99F9E745BBEAE7A02AF7E36" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_7DBB42CBFC980A849265AE7A02AF2566" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_8931136DC99F9E745BBEAE7A02AF7E36" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_CAB3FA4E1D4453249D2DAE7A02AFE219" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_7DBB42CBFC980A849265AE7A02AF2566" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_CAB3FA4E1D4453249D2DAE7A02AFE219" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_06F30E31DC4A07F37EF5AE7A02AF7F1B" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_7DBB42CBFC980A849265AE7A02AF2566" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_06F30E31DC4A07F37EF5AE7A02AF7F1B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_01B4FEA18A837ACA7A1CAE7A02AFD183" xlink:type="locator" />
    <presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_C1BB3FA128D4DBC11DF7AE7A029FF55C" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_01B4FEA18A837ACA7A1CAE7A02AFD183" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/ConsolidatedBalanceSheetsConsolidatedBalanceSheetParentheticals" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_C3C0C16174650F0DB8A5EADE7D04256D" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_703336CD4FEA0B636E9CEADE7D04FCA7" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_C3C0C16174650F0DB8A5EADE7D04256D" xlink:to="loc_us-gaap_StatementTable_703336CD4FEA0B636E9CEADE7D04FCA7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_2521C1A151FC0A2EA188EADE7D041C39" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_703336CD4FEA0B636E9CEADE7D04FCA7" xlink:to="loc_us-gaap_StatementScenarioAxis_2521C1A151FC0A2EA188EADE7D041C39" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_EDB12118A8B83282D85DEADE7D044588" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_2521C1A151FC0A2EA188EADE7D041C39" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_EDB12118A8B83282D85DEADE7D044588" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_F23A93E9310C38421105EADE7D04C6FE" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_703336CD4FEA0B636E9CEADE7D04FCA7" xlink:to="loc_us-gaap_StatementClassOfStockAxis_F23A93E9310C38421105EADE7D04C6FE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_0082580F4D9DBC51B429EADE7D041375" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_F23A93E9310C38421105EADE7D04C6FE" xlink:to="loc_us-gaap_ClassOfStockDomain_0082580F4D9DBC51B429EADE7D041375" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_3E0974C5112D67B98772EADE7D04CB37" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_703336CD4FEA0B636E9CEADE7D04FCA7" xlink:to="loc_us-gaap_StatementLineItems_3E0974C5112D67B98772EADE7D04CB37" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PreferredStockNoParValue" xlink:label="loc_us-gaap_PreferredStockNoParValue_9A591CA6957359C2E15BEADE7D040439" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_3E0974C5112D67B98772EADE7D04CB37" xlink:to="loc_us-gaap_PreferredStockNoParValue_9A591CA6957359C2E15BEADE7D040439" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_08FFB23E939487C24D24EADE7D04EBEF" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_3E0974C5112D67B98772EADE7D04CB37" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_08FFB23E939487C24D24EADE7D04EBEF" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PreferredStockSharesIssued" xlink:label="loc_us-gaap_PreferredStockSharesIssued_01B51889CE9FD4771D4EEADE7D043B27" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_3E0974C5112D67B98772EADE7D04CB37" xlink:to="loc_us-gaap_PreferredStockSharesIssued_01B51889CE9FD4771D4EEADE7D043B27" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PreferredStockSharesOutstanding" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_AEEB14D89EEA0E5DBACCEADE7D0472D0" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_3E0974C5112D67B98772EADE7D04CB37" xlink:to="loc_us-gaap_PreferredStockSharesOutstanding_AEEB14D89EEA0E5DBACCEADE7D0472D0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockNoParValue" xlink:label="loc_us-gaap_CommonStockNoParValue_D01EE6DF228D261F69CCEADE7D04B4F5" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_3E0974C5112D67B98772EADE7D04CB37" xlink:to="loc_us-gaap_CommonStockNoParValue_D01EE6DF228D261F69CCEADE7D04B4F5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_AD2A5E8FDE62558A57AAEADE7D04C5C2" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_3E0974C5112D67B98772EADE7D04CB37" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_AD2A5E8FDE62558A57AAEADE7D04C5C2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaap_CommonStockSharesIssued_5009DBB8089757924078EADE7D041BC8" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_3E0974C5112D67B98772EADE7D04CB37" xlink:to="loc_us-gaap_CommonStockSharesIssued_5009DBB8089757924078EADE7D041BC8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_363472B8820971DEE42FEADE7D04BFFE" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_3E0974C5112D67B98772EADE7D04CB37" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_363472B8820971DEE42FEADE7D04BFFE" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/ConsolidatedStatementsOfCashFlows" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_524A112A8982B9F9B6B0CBF04B174D1A" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_FEE128C8B861E05A0849CBF04B17E296" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_524A112A8982B9F9B6B0CBF04B174D1A" xlink:to="loc_us-gaap_StatementScenarioAxis_FEE128C8B861E05A0849CBF04B17E296" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_388B4DA13C07E3B750B7CBF04B17E35B" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_FEE128C8B861E05A0849CBF04B17E296" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_388B4DA13C07E3B750B7CBF04B17E35B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_7966F54BB17BD2443DFFCBF04B1766BC" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_524A112A8982B9F9B6B0CBF04B174D1A" xlink:to="loc_us-gaap_StatementLineItems_7966F54BB17BD2443DFFCBF04B1766BC" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_0C7785805AC321863F0FCBF04B17ADC7" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_7966F54BB17BD2443DFFCBF04B1766BC" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_0C7785805AC321863F0FCBF04B17ADC7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_31C99FDCB92CAA899ABACBF04B17F975" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_0C7785805AC321863F0FCBF04B17ADC7" xlink:to="loc_us-gaap_ProfitLoss_31C99FDCB92CAA899ABACBF04B17F975" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_DCC6BA9D67613A3FBBE0CBF04B17DB3E" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_0C7785805AC321863F0FCBF04B17ADC7" xlink:to="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_DCC6BA9D67613A3FBBE0CBF04B17DB3E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_68AEB5F12CF5B4F0FF45CBF04B17E8D2" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_DCC6BA9D67613A3FBBE0CBF04B17DB3E" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_68AEB5F12CF5B4F0FF45CBF04B17E8D2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInRiskManagementAssetsAndLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInRiskManagementAssetsAndLiabilities_F8F4BA2D786FBD25CAF1CBF04B17306C" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_DCC6BA9D67613A3FBBE0CBF04B17DB3E" xlink:to="loc_us-gaap_IncreaseDecreaseInRiskManagementAssetsAndLiabilities_F8F4BA2D786FBD25CAF1CBF04B17306C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_GainLossFromPriceRiskManagementActivity" xlink:label="loc_us-gaap_GainLossFromPriceRiskManagementActivity_69B34F93021F6287B8C8CBF04B174064" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_DCC6BA9D67613A3FBBE0CBF04B17DB3E" xlink:to="loc_us-gaap_GainLossFromPriceRiskManagementActivity_69B34F93021F6287B8C8CBF04B174064" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_ExpensesrelatedtoCascadeCrossing" xlink:label="loc_por_ExpensesrelatedtoCascadeCrossing_4984234B91E7128F3471CBF04B179AD1" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_DCC6BA9D67613A3FBBE0CBF04B17DB3E" xlink:to="loc_por_ExpensesrelatedtoCascadeCrossing_4984234B91E7128F3471CBF04B179AD1" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_C521466CFC5F201FAD79CBF04B17E353" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_DCC6BA9D67613A3FBBE0CBF04B17DB3E" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_C521466CFC5F201FAD79CBF04B17E353" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity" xlink:label="loc_us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity_05D12E07C1C45CB647F3CBF04B17C43C" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_DCC6BA9D67613A3FBBE0CBF04B17DB3E" xlink:to="loc_us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity_05D12E07C1C45CB647F3CBF04B17C43C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PensionAndOtherPostretirementBenefitExpense" xlink:label="loc_us-gaap_PensionAndOtherPostretirementBenefitExpense_89A70BF623CFA6F211B5CBF04B171DCE" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_DCC6BA9D67613A3FBBE0CBF04B17DB3E" xlink:to="loc_us-gaap_PensionAndOtherPostretirementBenefitExpense_89A70BF623CFA6F211B5CBF04B171DCE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_GainLossOnContractTermination" xlink:label="loc_us-gaap_GainLossOnContractTermination_0E2654E4484CD66355D1CBF04B179DCE" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_DCC6BA9D67613A3FBBE0CBF04B17DB3E" xlink:to="loc_us-gaap_GainLossOnContractTermination_0E2654E4484CD66355D1CBF04B179DCE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UnrealizedGainLossOnSecurities" xlink:label="loc_us-gaap_UnrealizedGainLossOnSecurities_98364C4DEFF574852D29CBF04B17F23C" xlink:type="locator" />
    <presentationArc order="9" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_DCC6BA9D67613A3FBBE0CBF04B17DB3E" xlink:to="loc_us-gaap_UnrealizedGainLossOnSecurities_98364C4DEFF574852D29CBF04B17F23C" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_DecouplingMechanismDeferralsNet" xlink:label="loc_por_DecouplingMechanismDeferralsNet_632221010AEF3EFA19F6CBF04B172449" xlink:type="locator" />
    <presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_DCC6BA9D67613A3FBBE0CBF04B17DB3E" xlink:to="loc_por_DecouplingMechanismDeferralsNet_632221010AEF3EFA19F6CBF04B172449" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInOverUnderEnergyRecovery" xlink:label="loc_us-gaap_IncreaseDecreaseInOverUnderEnergyRecovery_10479DF3D2F93193CFD1CBF04B172364" xlink:type="locator" />
    <presentationArc order="11" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_DCC6BA9D67613A3FBBE0CBF04B17DB3E" xlink:to="loc_us-gaap_IncreaseDecreaseInOverUnderEnergyRecovery_10479DF3D2F93193CFD1CBF04B172364" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherNoncashIncomeExpense" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense_308A4678A77861F506BFCBF04B176A45" xlink:type="locator" />
    <presentationArc order="12" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_DCC6BA9D67613A3FBBE0CBF04B17DB3E" xlink:to="loc_us-gaap_OtherNoncashIncomeExpense_308A4678A77861F506BFCBF04B176A45" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_ED0B6815BE689ADB3067CBF04B171B2E" xlink:type="locator" />
    <presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_DCC6BA9D67613A3FBBE0CBF04B17DB3E" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_ED0B6815BE689ADB3067CBF04B171B2E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInReceivables" xlink:label="loc_us-gaap_IncreaseDecreaseInReceivables_76E4AF403B41EAEFA518CBF04B17B84A" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_ED0B6815BE689ADB3067CBF04B171B2E" xlink:to="loc_us-gaap_IncreaseDecreaseInReceivables_76E4AF403B41EAEFA518CBF04B17B84A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInMarginDepositsOutstanding" xlink:label="loc_us-gaap_IncreaseDecreaseInMarginDepositsOutstanding_59AE52C131299A647842CBF04B173D3D" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_ED0B6815BE689ADB3067CBF04B171B2E" xlink:to="loc_us-gaap_IncreaseDecreaseInMarginDepositsOutstanding_59AE52C131299A647842CBF04B173D3D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_AA0B9B6CBAC58784A6D6CBF04B17AC53" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_ED0B6815BE689ADB3067CBF04B171B2E" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_AA0B9B6CBAC58784A6D6CBF04B17AC53" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_1965C9BBFF615D965189CBF04B170C94" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_ED0B6815BE689ADB3067CBF04B171B2E" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_1965C9BBFF615D965189CBF04B170C94" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInCustomerAdvancesAndDeposits" xlink:label="loc_us-gaap_IncreaseDecreaseInCustomerAdvancesAndDeposits_E376DEE35DBB3BCB2F70CBFF8EEC2E99" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_ED0B6815BE689ADB3067CBF04B171B2E" xlink:to="loc_us-gaap_IncreaseDecreaseInCustomerAdvancesAndDeposits_E376DEE35DBB3BCB2F70CBFF8EEC2E99" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromLegalSettlements" xlink:label="loc_us-gaap_ProceedsFromLegalSettlements_193A700377A03A75E81DCBF04B1776F2" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_ED0B6815BE689ADB3067CBF04B171B2E" xlink:to="loc_us-gaap_ProceedsFromLegalSettlements_193A700377A03A75E81DCBF04B1776F2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInDeferredCompensation" xlink:label="loc_us-gaap_IncreaseDecreaseInDeferredCompensation_906F870B36B661978CBFCBF04B17526E" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_ED0B6815BE689ADB3067CBF04B171B2E" xlink:to="loc_us-gaap_IncreaseDecreaseInDeferredCompensation_906F870B36B661978CBFCBF04B17526E" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_ContributionToVoluntaryEmployeesBeneficiaryAssociationTrust" xlink:label="loc_por_ContributionToVoluntaryEmployeesBeneficiaryAssociationTrust_67AAB0DC0BA7F911A0E9CBF04B17B726" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_ED0B6815BE689ADB3067CBF04B171B2E" xlink:to="loc_por_ContributionToVoluntaryEmployeesBeneficiaryAssociationTrust_67AAB0DC0BA7F911A0E9CBF04B17B726" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_60A1C29DF2498D995339CBF04B1774C9" xlink:type="locator" />
    <presentationArc order="9" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_ED0B6815BE689ADB3067CBF04B171B2E" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_60A1C29DF2498D995339CBF04B1774C9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9238237ACE7E9601F70ACBF04B178A5E" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_0C7785805AC321863F0FCBF04B17ADC7" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9238237ACE7E9601F70ACBF04B178A5E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_C40AEA55318A0CF89D08CBF04B17D4F5" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_7966F54BB17BD2443DFFCBF04B1766BC" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_C40AEA55318A0CF89D08CBF04B17D4F5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_4F9E44A9F328699BE805CBF04B173722" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_C40AEA55318A0CF89D08CBF04B17D4F5" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_4F9E44A9F328699BE805CBF04B173722" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsToInvestInDecommissioningFund" xlink:label="loc_us-gaap_PaymentsToInvestInDecommissioningFund_0604FDBCC3063C5095A5CBF04B173281" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_C40AEA55318A0CF89D08CBF04B17D4F5" xlink:to="loc_us-gaap_PaymentsToInvestInDecommissioningFund_0604FDBCC3063C5095A5CBF04B173281" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments" xlink:label="loc_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments_8E231C6CECFF1C9F512BCBF04B170699" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_C40AEA55318A0CF89D08CBF04B17D4F5" xlink:to="loc_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments_8E231C6CECFF1C9F512BCBF04B170699" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsForProceedsFromInvestments" xlink:label="loc_us-gaap_PaymentsForProceedsFromInvestments_D30819520FA90C7FC786CC1C410819EC" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_C40AEA55318A0CF89D08CBF04B17D4F5" xlink:to="loc_us-gaap_PaymentsForProceedsFromInvestments_D30819520FA90C7FC786CC1C410819EC" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInOtherReceivables" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherReceivables_00A6EED83334634A509CCBF04B17E828" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_C40AEA55318A0CF89D08CBF04B17D4F5" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherReceivables_00A6EED83334634A509CCBF04B17E828" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAcquiredFromAcquisition" xlink:label="loc_us-gaap_CashAcquiredFromAcquisition_0A2293E47D94BD8CFC3ECBF04B17F3B4" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_C40AEA55318A0CF89D08CBF04B17D4F5" xlink:to="loc_us-gaap_CashAcquiredFromAcquisition_0A2293E47D94BD8CFC3ECBF04B17F3B4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromInsuranceSettlementInvestingActivities" xlink:label="loc_us-gaap_ProceedsFromInsuranceSettlementInvestingActivities_901D06BD7174C8618AC4CBF04B17384D" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_C40AEA55318A0CF89D08CBF04B17D4F5" xlink:to="loc_us-gaap_ProceedsFromInsuranceSettlementInvestingActivities_901D06BD7174C8618AC4CBF04B17384D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromSaleOfProductiveAssets" xlink:label="loc_us-gaap_ProceedsFromSaleOfProductiveAssets_1D4F6D5C5C3BB5E4E9C8CBF04B176FA3" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_C40AEA55318A0CF89D08CBF04B17D4F5" xlink:to="loc_us-gaap_ProceedsFromSaleOfProductiveAssets_1D4F6D5C5C3BB5E4E9C8CBF04B176FA3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_70EE5087FD99912174BCCBF04B1700D8" xlink:type="locator" />
    <presentationArc order="9" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_C40AEA55318A0CF89D08CBF04B17D4F5" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_70EE5087FD99912174BCCBF04B1700D8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_645A379872C28681506DCBF04B176BB0" xlink:type="locator" />
    <presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_C40AEA55318A0CF89D08CBF04B17D4F5" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_645A379872C28681506DCBF04B176BB0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_371A0826492C883BF294CBF04B17B724" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_7966F54BB17BD2443DFFCBF04B1766BC" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_371A0826492C883BF294CBF04B17B724" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_B1E4C1302331D94A9A35CBF04B1705DA" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_371A0826492C883BF294CBF04B17B724" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_B1E4C1302331D94A9A35CBF04B1705DA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RepaymentsOfLongTermDebt" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_B12F40DB03CDA5935950CBF04B17A5CD" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_371A0826492C883BF294CBF04B17B724" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebt_B12F40DB03CDA5935950CBF04B17A5CD" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_3A9A2DA683B600B88CD7CBF04B179074" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_371A0826492C883BF294CBF04B17B724" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_3A9A2DA683B600B88CD7CBF04B179074" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromShortTermDebt" xlink:label="loc_us-gaap_ProceedsFromShortTermDebt_84196F37D1268E04A750CBF04B172A1B" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_371A0826492C883BF294CBF04B17B724" xlink:to="loc_us-gaap_ProceedsFromShortTermDebt_84196F37D1268E04A750CBF04B172A1B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RepaymentsOfShortTermDebt" xlink:label="loc_us-gaap_RepaymentsOfShortTermDebt_5C2F55CA5E4E0C44156ECBF04B17311B" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_371A0826492C883BF294CBF04B17B724" xlink:to="loc_us-gaap_RepaymentsOfShortTermDebt_5C2F55CA5E4E0C44156ECBF04B17311B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RepaymentsOfCommercialPaper" xlink:label="loc_us-gaap_RepaymentsOfCommercialPaper_D4533537F3355C5FE568CBF04B175D36" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_371A0826492C883BF294CBF04B17B724" xlink:to="loc_us-gaap_RepaymentsOfCommercialPaper_D4533537F3355C5FE568CBF04B175D36" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommercialPaper" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfCommercialPaper_86BA483D5A59513372CFCBF04B17D380" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_371A0826492C883BF294CBF04B17B724" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfCommercialPaper_86BA483D5A59513372CFCBF04B17D380" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsOfDividends" xlink:label="loc_us-gaap_PaymentsOfDividends_6076F5A9A3CB0EAA7763CBF04B172C22" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_371A0826492C883BF294CBF04B17B724" xlink:to="loc_us-gaap_PaymentsOfDividends_6076F5A9A3CB0EAA7763CBF04B172C22" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsOfDebtIssuanceCosts" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_E06DBB878ED9B7ECC2F7CBF04B173F45" xlink:type="locator" />
    <presentationArc order="9" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_371A0826492C883BF294CBF04B17B724" xlink:to="loc_us-gaap_PaymentsOfDebtIssuanceCosts_E06DBB878ED9B7ECC2F7CBF04B173F45" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_A81B685BEA521B60038BCBF04B171653" xlink:type="locator" />
    <presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_371A0826492C883BF294CBF04B17B724" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_A81B685BEA521B60038BCBF04B171653" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_A447F17C1041B367C288CBF04B178494" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_7966F54BB17BD2443DFFCBF04B1766BC" xlink:to="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_A447F17C1041B367C288CBF04B178494" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_41F651CD4D6BBD32CB57CBF04B176F9E" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_7966F54BB17BD2443DFFCBF04B1766BC" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_41F651CD4D6BBD32CB57CBF04B176F9E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_4EC8CDBB0F337F2F0E83CBF04B17E458" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_7966F54BB17BD2443DFFCBF04B1766BC" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_4EC8CDBB0F337F2F0E83CBF04B17E458" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract" xlink:label="loc_us-gaap_SupplementalCashFlowInformationAbstract_976CADCF3D32A6EA83F9CBF04B1772FD" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_7966F54BB17BD2443DFFCBF04B1766BC" xlink:to="loc_us-gaap_SupplementalCashFlowInformationAbstract_976CADCF3D32A6EA83F9CBF04B1772FD" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InterestPaidNet" xlink:label="loc_us-gaap_InterestPaidNet_D47D40820E85C8FD0800CBF04B175265" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_976CADCF3D32A6EA83F9CBF04B1772FD" xlink:to="loc_us-gaap_InterestPaidNet_D47D40820E85C8FD0800CBF04B175265" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeTaxesPaid" xlink:label="loc_us-gaap_IncomeTaxesPaid_953AB5D3307D5A9F2743CBF04B17905F" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_976CADCF3D32A6EA83F9CBF04B1772FD" xlink:to="loc_us-gaap_IncomeTaxesPaid_953AB5D3307D5A9F2743CBF04B17905F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NoncashInvestingAndFinancingItemsAbstract" xlink:label="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_9E1A993589D9C089E5C9CBF04B17132A" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_976CADCF3D32A6EA83F9CBF04B1772FD" xlink:to="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_9E1A993589D9C089E5C9CBF04B17132A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" xlink:label="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_E5785A70689740F0CEB1CBF04B171284" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_976CADCF3D32A6EA83F9CBF04B1772FD" xlink:to="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_E5785A70689740F0CEB1CBF04B171284" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CapitalExpendituresIncurredButNotYetPaid" xlink:label="loc_us-gaap_CapitalExpendituresIncurredButNotYetPaid_7DA8D85092717EB2E455CBF04B17BE8A" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_E5785A70689740F0CEB1CBF04B171284" xlink:to="loc_us-gaap_CapitalExpendituresIncurredButNotYetPaid_7DA8D85092717EB2E455CBF04B17BE8A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DividendsPayableCurrentAndNoncurrent" xlink:label="loc_us-gaap_DividendsPayableCurrentAndNoncurrent_A07708F03D1DD3973121CBF04B17F0E8" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_E5785A70689740F0CEB1CBF04B171284" xlink:to="loc_us-gaap_DividendsPayableCurrentAndNoncurrent_A07708F03D1DD3973121CBF04B17F0E8" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_Accruedsalestaxrefund" xlink:label="loc_por_Accruedsalestaxrefund_F71B5282B03FE4A5B452CBF04B17CAEF" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_E5785A70689740F0CEB1CBF04B171284" xlink:to="loc_por_Accruedsalestaxrefund_F71B5282B03FE4A5B452CBF04B17CAEF" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_PreliminaryEngineeringTransferredToConstructionWorkInProgress" xlink:label="loc_por_PreliminaryEngineeringTransferredToConstructionWorkInProgress_959FB68ADA21E26B426FCBF04B17855D" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_E5785A70689740F0CEB1CBF04B171284" xlink:to="loc_por_PreliminaryEngineeringTransferredToConstructionWorkInProgress_959FB68ADA21E26B426FCBF04B17855D" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/ConsolidatedStatementsOfComprehensiveIncome" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_B0661C81EC77F46F5430C890CA0705A6" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_9AA3A82B52481E0EF078C890CA070285" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_B0661C81EC77F46F5430C890CA0705A6" xlink:to="loc_us-gaap_StatementScenarioAxis_9AA3A82B52481E0EF078C890CA070285" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_060A048EC1533B9F5A02C890CA0715B4" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_9AA3A82B52481E0EF078C890CA070285" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_060A048EC1533B9F5A02C890CA0715B4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_2908631473785E0DE054C890CA07D63B" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_B0661C81EC77F46F5430C890CA0705A6" xlink:to="loc_us-gaap_StatementLineItems_2908631473785E0DE054C890CA07D63B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_59A822D54E37E0E0C0AEC890CA07BCC4" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_2908631473785E0DE054C890CA07D63B" xlink:to="loc_us-gaap_ProfitLoss_59A822D54E37E0E0C0AEC890CA07BCC4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax_E4842800999715ADC8A0C890CA071E09" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_2908631473785E0DE054C890CA07D63B" xlink:to="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax_E4842800999715ADC8A0C890CA071E09" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_9E043AC9EEE9BFE14439C890CA070C74" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_2908631473785E0DE054C890CA07D63B" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_9E043AC9EEE9BFE14439C890CA070C74" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_AFB4F0ABDC53DFD3F7D1C890CA07FB43" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_2908631473785E0DE054C890CA07D63B" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_AFB4F0ABDC53DFD3F7D1C890CA07FB43" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_FCD9D6413FA3F581D2EDC890CA07D4FB" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_2908631473785E0DE054C890CA07D63B" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTax_FCD9D6413FA3F581D2EDC890CA07D4FB" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/ConsolidatedStatementsOfComprehensiveIncomeConsolidatedStatementOfComprehensiveIncomeParentheticals" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:label="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_8500618D5839FC943E02EADE7D36E698" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_20AD30F89F915F49B2D1EADE7D367872" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_8500618D5839FC943E02EADE7D36E698" xlink:to="loc_us-gaap_StatementTable_20AD30F89F915F49B2D1EADE7D367872" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_5C06B01DB755049B89C5EADE7D3653B0" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_20AD30F89F915F49B2D1EADE7D367872" xlink:to="loc_us-gaap_StatementScenarioAxis_5C06B01DB755049B89C5EADE7D3653B0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_C03EA1F2033FD66C3FDBEADE7D36F6A8" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_5C06B01DB755049B89C5EADE7D3653B0" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_C03EA1F2033FD66C3FDBEADE7D36F6A8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_7F33D63B7919D3261CF5EADE7D36B79E" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_20AD30F89F915F49B2D1EADE7D367872" xlink:to="loc_us-gaap_StatementLineItems_7F33D63B7919D3261CF5EADE7D36B79E" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_NetTaxesOnChangeInCompensationRetirementBenefitsLiabilityAndAmortization" xlink:label="loc_por_NetTaxesOnChangeInCompensationRetirementBenefitsLiabilityAndAmortization_2C6C7BD4D8953C52C2E0EADE7D36EB5A" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_7F33D63B7919D3261CF5EADE7D36B79E" xlink:to="loc_por_NetTaxesOnChangeInCompensationRetirementBenefitsLiabilityAndAmortization_2C6C7BD4D8953C52C2E0EADE7D36EB5A" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/ConsolidatedStatementsOfEquity" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_092609D49A4CFB056575A9656AC19EC1" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_87115B1B69E449E67391A9656AC1DDB3" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_092609D49A4CFB056575A9656AC19EC1" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_87115B1B69E449E67391A9656AC1DDB3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_90A6149C3A66B0A4BC9BA9656AC1537D" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_87115B1B69E449E67391A9656AC1DDB3" xlink:to="loc_us-gaap_EquityComponentDomain_90A6149C3A66B0A4BC9BA9656AC1537D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_FC7B582B8BC0B7AE682AA9656AC198BC" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_90A6149C3A66B0A4BC9BA9656AC1537D" xlink:to="loc_us-gaap_CommonStockMember_FC7B582B8BC0B7AE682AA9656AC198BC" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockIncludingAdditionalPaidInCapitalMember" xlink:label="loc_us-gaap_CommonStockIncludingAdditionalPaidInCapitalMember_C9DF6109834932E486C1A9656AC1DA62" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_90A6149C3A66B0A4BC9BA9656AC1537D" xlink:to="loc_us-gaap_CommonStockIncludingAdditionalPaidInCapitalMember_C9DF6109834932E486C1A9656AC1DA62" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_F500F57FBC05DE943BB9A9656AC16241" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_90A6149C3A66B0A4BC9BA9656AC1537D" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_F500F57FBC05DE943BB9A9656AC16241" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaap_RetainedEarningsMember_0A703873F549D77A3740A9656AC15C75" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_90A6149C3A66B0A4BC9BA9656AC1537D" xlink:to="loc_us-gaap_RetainedEarningsMember_0A703873F549D77A3740A9656AC15C75" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NoncontrollingInterestMember" xlink:label="loc_us-gaap_NoncontrollingInterestMember_C8E33A223CD0E45ECD80A9656AC1FA06" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_90A6149C3A66B0A4BC9BA9656AC1537D" xlink:to="loc_us-gaap_NoncontrollingInterestMember_C8E33A223CD0E45ECD80A9656AC1FA06" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_DB41B5840F44A55C5FA3A9656AC134E5" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_092609D49A4CFB056575A9656AC19EC1" xlink:to="loc_us-gaap_StatementLineItems_DB41B5840F44A55C5FA3A9656AC134E5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7650155A412E205CF905A9656AC120EC" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_DB41B5840F44A55C5FA3A9656AC134E5" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7650155A412E205CF905A9656AC120EC" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SharesIssued" xlink:label="loc_us-gaap_SharesIssued_F65AF7BBB0C8039C3EA6A9656AC1D22A" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7650155A412E205CF905A9656AC120EC" xlink:to="loc_us-gaap_SharesIssued_F65AF7BBB0C8039C3EA6A9656AC1D22A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_1B368CC93CE1A9A679CCA9656AC171FE" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7650155A412E205CF905A9656AC120EC" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_1B368CC93CE1A9A679CCA9656AC171FE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_B3FCB150386FFA1931CBA9656AC10183" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7650155A412E205CF905A9656AC120EC" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_B3FCB150386FFA1931CBA9656AC10183" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_6B0A81B4F82A17088CFDA9656AC1E333" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7650155A412E205CF905A9656AC120EC" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_6B0A81B4F82A17088CFDA9656AC1E333" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_960244EE301565E5B930A9656AC10D70" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7650155A412E205CF905A9656AC120EC" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_960244EE301565E5B930A9656AC10D70" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions_F9E2DE89D41C0FE97F23A9656AC107DD" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7650155A412E205CF905A9656AC120EC" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions_F9E2DE89D41C0FE97F23A9656AC107DD" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation" xlink:label="loc_us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation_0733E34BD4A8E3C18C70A9656AC1C79B" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7650155A412E205CF905A9656AC120EC" xlink:to="loc_us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation_0733E34BD4A8E3C18C70A9656AC1C79B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DividendsCommonStock" xlink:label="loc_us-gaap_DividendsCommonStock_E2166F74BDD46CDC9FA9A9656AC10AF9" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7650155A412E205CF905A9656AC120EC" xlink:to="loc_us-gaap_DividendsCommonStock_E2166F74BDD46CDC9FA9A9656AC10AF9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_EC463A1E61DD5247FBBEA9656AC1C1C5" xlink:type="locator" />
    <presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7650155A412E205CF905A9656AC120EC" xlink:to="loc_us-gaap_ProfitLoss_EC463A1E61DD5247FBBEA9656AC1C1C5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_484222381ED36C3BF22FA9656AC12F5F" xlink:type="locator" />
    <presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7650155A412E205CF905A9656AC120EC" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_484222381ED36C3BF22FA9656AC12F5F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SharesIssued" xlink:label="loc_us-gaap_SharesIssued_80C0389281ACD9B76825A9656AC1B3A0" xlink:type="locator" />
    <presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7650155A412E205CF905A9656AC120EC" xlink:to="loc_us-gaap_SharesIssued_80C0389281ACD9B76825A9656AC1B3A0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_5F3205E7F4A0EF6C5204A9656AC12A3C" xlink:type="locator" />
    <presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7650155A412E205CF905A9656AC120EC" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_5F3205E7F4A0EF6C5204A9656AC12A3C" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/ConsolidatedStatementsOfEquityConsolidatedStatementOfEquityParenthetical" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_StatementofStockholdersEquityParentheticalAbstract" xlink:label="loc_por_StatementofStockholdersEquityParentheticalAbstract_2F54D0583354F195A94AEADE7DCC37E5" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_16D49505EA1B890933EAEADE7DCC8385" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_StatementofStockholdersEquityParentheticalAbstract_2F54D0583354F195A94AEADE7DCC37E5" xlink:to="loc_us-gaap_StatementTable_16D49505EA1B890933EAEADE7DCC8385" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_23DBD6F340B69FF508B8EADE7DCC2A05" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_16D49505EA1B890933EAEADE7DCC8385" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_23DBD6F340B69FF508B8EADE7DCC2A05" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_997AEE05A41748EC5313EADE7DCCC4F2" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_23DBD6F340B69FF508B8EADE7DCC2A05" xlink:to="loc_us-gaap_EquityComponentDomain_997AEE05A41748EC5313EADE7DCCC4F2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_CB339051EA69B4090E4FEADE7DCC1431" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_16D49505EA1B890933EAEADE7DCC8385" xlink:to="loc_us-gaap_StatementLineItems_CB339051EA69B4090E4FEADE7DCC1431" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts_E430C71BBC46B36773D4EADE7DCC06E4" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_CB339051EA69B4090E4FEADE7DCC1431" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts_E430C71BBC46B36773D4EADE7DCC06E4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockDividendsPerShareDeclared" xlink:label="loc_us-gaap_CommonStockDividendsPerShareDeclared_84942E1AA2E69C9A2B83EADE7DCC10EF" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_CB339051EA69B4090E4FEADE7DCC1431" xlink:to="loc_us-gaap_CommonStockDividendsPerShareDeclared_84942E1AA2E69C9A2B83EADE7DCC10EF" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/ConsolidatedStatementsOfIncome" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_5FC384ED213C45F03697EADE7D407B32" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_67E77C4E4256408FE7F3EADE7D400197" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_5FC384ED213C45F03697EADE7D407B32" xlink:to="loc_us-gaap_StatementScenarioAxis_67E77C4E4256408FE7F3EADE7D400197" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_7559A45AF94EE6E09C21EADE7D4072A5" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_67E77C4E4256408FE7F3EADE7D400197" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_7559A45AF94EE6E09C21EADE7D4072A5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_692BA942F0E56A9F18F0EADE7D40D5EE" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_5FC384ED213C45F03697EADE7D407B32" xlink:to="loc_us-gaap_StatementLineItems_692BA942F0E56A9F18F0EADE7D40D5EE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ElectricUtilityRevenue" xlink:label="loc_us-gaap_ElectricUtilityRevenue_D6B06A25240A177559D5EADE7D400F39" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_692BA942F0E56A9F18F0EADE7D40D5EE" xlink:to="loc_us-gaap_ElectricUtilityRevenue_D6B06A25240A177559D5EADE7D400F39" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CostsAndExpensesAbstract" xlink:label="loc_us-gaap_CostsAndExpensesAbstract_7609E290E83C732C785AEADE7D40DA27" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_692BA942F0E56A9F18F0EADE7D40D5EE" xlink:to="loc_us-gaap_CostsAndExpensesAbstract_7609E290E83C732C785AEADE7D40DA27" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CostOfPurchasedPower" xlink:label="loc_us-gaap_CostOfPurchasedPower_85F577520F4FE5280716EADE7D40BF1A" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_7609E290E83C732C785AEADE7D40DA27" xlink:to="loc_us-gaap_CostOfPurchasedPower_85F577520F4FE5280716EADE7D40BF1A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ElectricProductionExpense" xlink:label="loc_us-gaap_ElectricProductionExpense_53135A832FC871FD0EB8EADE7D40BEC5" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_7609E290E83C732C785AEADE7D40DA27" xlink:to="loc_us-gaap_ElectricProductionExpense_53135A832FC871FD0EB8EADE7D40BEC5" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_ExpensesrelatedtoCascadeCrossing" xlink:label="loc_por_ExpensesrelatedtoCascadeCrossing_1895102CFA5FE5D7F6D4EADE7D40C1BA" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_7609E290E83C732C785AEADE7D40DA27" xlink:to="loc_por_ExpensesrelatedtoCascadeCrossing_1895102CFA5FE5D7F6D4EADE7D40C1BA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_1650D0E7D6016C6D67BBEADE7D409301" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_7609E290E83C732C785AEADE7D40DA27" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_1650D0E7D6016C6D67BBEADE7D409301" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_250E01DAE0DD3B4085C5EADE7D409AD5" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_7609E290E83C732C785AEADE7D40DA27" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_250E01DAE0DD3B4085C5EADE7D409AD5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TaxesExcludingIncomeAndExciseTaxes" xlink:label="loc_us-gaap_TaxesExcludingIncomeAndExciseTaxes_8B2A1DA654BD9C62B271EADE7D407B06" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_7609E290E83C732C785AEADE7D40DA27" xlink:to="loc_us-gaap_TaxesExcludingIncomeAndExciseTaxes_8B2A1DA654BD9C62B271EADE7D407B06" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CostsAndExpenses" xlink:label="loc_us-gaap_CostsAndExpenses_CD11614A1B1F47647F68EADE7D40D4BD" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_7609E290E83C732C785AEADE7D40DA27" xlink:to="loc_us-gaap_CostsAndExpenses_CD11614A1B1F47647F68EADE7D40D4BD" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_652F596565D91C5298BEEADE7D402EC1" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_692BA942F0E56A9F18F0EADE7D40D5EE" xlink:to="loc_us-gaap_OperatingIncomeLoss_652F596565D91C5298BEEADE7D402EC1" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaap_InterestExpense_C3DA71E47AFAC64CF672EADE7D406E1B" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_692BA942F0E56A9F18F0EADE7D40D5EE" xlink:to="loc_us-gaap_InterestExpense_C3DA71E47AFAC64CF672EADE7D406E1B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherIncomeAndExpensesAbstract" xlink:label="loc_us-gaap_OtherIncomeAndExpensesAbstract_5613A26003BD6825DA6AEADE7D4055C7" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_692BA942F0E56A9F18F0EADE7D40D5EE" xlink:to="loc_us-gaap_OtherIncomeAndExpensesAbstract_5613A26003BD6825DA6AEADE7D4055C7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity" xlink:label="loc_us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity_D639171F227BA95DE842EADE7D40C724" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherIncomeAndExpensesAbstract_5613A26003BD6825DA6AEADE7D4055C7" xlink:to="loc_us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity_D639171F227BA95DE842EADE7D40C724" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_78DA91B3624991F7F1AFEADE7D40EF31" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherIncomeAndExpensesAbstract_5613A26003BD6825DA6AEADE7D4055C7" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_78DA91B3624991F7F1AFEADE7D40EF31" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NonoperatingIncomeExpense" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_BD36E3973299130CE361EADE7D409A5E" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherIncomeAndExpensesAbstract_5613A26003BD6825DA6AEADE7D4055C7" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_BD36E3973299130CE361EADE7D409A5E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_1E470E2F69F1F2394D4CEADE7D401DE8" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_692BA942F0E56A9F18F0EADE7D40D5EE" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_1E470E2F69F1F2394D4CEADE7D401DE8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_F7D4E3276054C0CFF1F9EADE7D4072A2" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_692BA942F0E56A9F18F0EADE7D40D5EE" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_F7D4E3276054C0CFF1F9EADE7D4072A2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_76F03C59F448A0829A81EADE7D40E449" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_692BA942F0E56A9F18F0EADE7D40D5EE" xlink:to="loc_us-gaap_ProfitLoss_76F03C59F448A0829A81EADE7D40E449" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_B8F9DF50413A90305033EADE7D40CBB1" xlink:type="locator" />
    <presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_692BA942F0E56A9F18F0EADE7D40D5EE" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_B8F9DF50413A90305033EADE7D40CBB1" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_CA8473F747EC43C5D517EADE7D400CD0" xlink:type="locator" />
    <presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_692BA942F0E56A9F18F0EADE7D40D5EE" xlink:to="loc_us-gaap_NetIncomeLoss_CA8473F747EC43C5D517EADE7D400CD0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_5AE21677943BF98A4FEDEADE7D406A44" xlink:type="locator" />
    <presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_692BA942F0E56A9F18F0EADE7D40D5EE" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_5AE21677943BF98A4FEDEADE7D406A44" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_39A317B83BADD5BFAA9EEADE7D401A56" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_5AE21677943BF98A4FEDEADE7D406A44" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_39A317B83BADD5BFAA9EEADE7D401A56" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_065BFD97B429556848B8EADE7D405198" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_5AE21677943BF98A4FEDEADE7D406A44" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_065BFD97B429556848B8EADE7D405198" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_5D3D47F532AFEC63DCCAEADE7D4084A7" xlink:type="locator" />
    <presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_692BA942F0E56A9F18F0EADE7D40D5EE" xlink:to="loc_us-gaap_EarningsPerShareAbstract_5D3D47F532AFEC63DCCAEADE7D4084A7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="loc_us-gaap_EarningsPerShareBasic_882A951DCD6DB212C160EADE7D4033A5" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_5D3D47F532AFEC63DCCAEADE7D4084A7" xlink:to="loc_us-gaap_EarningsPerShareBasic_882A951DCD6DB212C160EADE7D4033A5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="loc_us-gaap_EarningsPerShareDiluted_9B76604180AA3BC5CAE6EADE7D405DA8" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_5D3D47F532AFEC63DCCAEADE7D4084A7" xlink:to="loc_us-gaap_EarningsPerShareDiluted_9B76604180AA3BC5CAE6EADE7D405DA8" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/Contingencies" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_ContingenciesAbstract" xlink:label="loc_por_ContingenciesAbstract_5A0E6D42C103E905721FEADE7D5E0661" xlink:type="locator" />
    <loc xlink:href="por-20151231.xsd#por_ContingenciesTextBlock" xlink:label="loc_por_ContingenciesTextBlock_83188B405A5DCA0A730DEADE7D5ECEFD" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_ContingenciesAbstract_5A0E6D42C103E905721FEADE7D5E0661" xlink:to="loc_por_ContingenciesTextBlock_83188B405A5DCA0A730DEADE7D5ECEFD" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/ContingenciesDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_ContingenciesAbstract" xlink:label="loc_por_ContingenciesAbstract_5F84B01BCAD483400C56C89BB0C24A67" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LossContingenciesTable" xlink:label="loc_us-gaap_LossContingenciesTable_20204A556AA6432B89F7C89BB0C2C47D" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_ContingenciesAbstract_5F84B01BCAD483400C56C89BB0C24A67" xlink:to="loc_us-gaap_LossContingenciesTable_20204A556AA6432B89F7C89BB0C2C47D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LossContingenciesByNatureOfContingencyAxis" xlink:label="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_26B5905991239CAA9A8DC89BB0C2DB37" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesTable_20204A556AA6432B89F7C89BB0C2C47D" xlink:to="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_26B5905991239CAA9A8DC89BB0C2DB37" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LossContingencyNatureDomain" xlink:label="loc_us-gaap_LossContingencyNatureDomain_8CB7C70566C006872547C89BB0C2C275" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_26B5905991239CAA9A8DC89BB0C2DB37" xlink:to="loc_us-gaap_LossContingencyNatureDomain_8CB7C70566C006872547C89BB0C2C275" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LossContingenciesLineItems" xlink:label="loc_us-gaap_LossContingenciesLineItems_9E1E32FD5D13EEFB8558C89BB0C23E7C" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesTable_20204A556AA6432B89F7C89BB0C2C47D" xlink:to="loc_us-gaap_LossContingenciesLineItems_9E1E32FD5D13EEFB8558C89BB0C23E7C" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_InvestmentInTrojan" xlink:label="loc_por_InvestmentInTrojan_CEFB0D1101BD66B94978C89BB0C2C677" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_9E1E32FD5D13EEFB8558C89BB0C23E7C" xlink:to="loc_por_InvestmentInTrojan_CEFB0D1101BD66B94978C89BB0C2C677" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_RefundToCustomersForTrojanInvestmentIncludingInterest" xlink:label="loc_por_RefundToCustomersForTrojanInvestmentIncludingInterest_53C6AC71EF9D64D33E46C89BB0C29A85" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_9E1E32FD5D13EEFB8558C89BB0C23E7C" xlink:to="loc_por_RefundToCustomersForTrojanInvestmentIncludingInterest_53C6AC71EF9D64D33E46C89BB0C29A85" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_ClassActionLawsuitDamagesSought" xlink:label="loc_por_ClassActionLawsuitDamagesSought_06002D91F4D4251F0108C89BB0C2121E" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_9E1E32FD5D13EEFB8558C89BB0C23E7C" xlink:to="loc_por_ClassActionLawsuitDamagesSought_06002D91F4D4251F0108C89BB0C2121E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SiteContingencyNamesOfOtherPotentiallyResponsibleParties" xlink:label="loc_us-gaap_SiteContingencyNamesOfOtherPotentiallyResponsibleParties_DD266DAC275FC6B07125C89BB0C2BABD" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_9E1E32FD5D13EEFB8558C89BB0C23E7C" xlink:to="loc_us-gaap_SiteContingencyNamesOfOtherPotentiallyResponsibleParties_DD266DAC275FC6B07125C89BB0C2BABD" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_LowEstimateOfRangeOfCostOfPortlandHarborCleanupInTotal" xlink:label="loc_por_LowEstimateOfRangeOfCostOfPortlandHarborCleanupInTotal_BE9CC9F57F590109719AC89BB0C26BDF" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_9E1E32FD5D13EEFB8558C89BB0C23E7C" xlink:to="loc_por_LowEstimateOfRangeOfCostOfPortlandHarborCleanupInTotal_BE9CC9F57F590109719AC89BB0C26BDF" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_UpperEstimatedRangeOfTotalCostOfPortlandHarborCleanup" xlink:label="loc_por_UpperEstimatedRangeOfTotalCostOfPortlandHarborCleanup_BE372C947902701EE8DAC89BB0C26677" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_9E1E32FD5D13EEFB8558C89BB0C23E7C" xlink:to="loc_por_UpperEstimatedRangeOfTotalCostOfPortlandHarborCleanup_BE372C947902701EE8DAC89BB0C26677" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LossContingencyRangeOfPossibleLossMaximum" xlink:label="loc_us-gaap_LossContingencyRangeOfPossibleLossMaximum_0008CF53D7677E32CE79C8A096B9DC3D" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_9E1E32FD5D13EEFB8558C89BB0C23E7C" xlink:to="loc_us-gaap_LossContingencyRangeOfPossibleLossMaximum_0008CF53D7677E32CE79C8A096B9DC3D" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_JointlyOwnedUtilityPlantProportionateOwnershipShareOfColstrip" xlink:label="loc_por_JointlyOwnedUtilityPlantProportionateOwnershipShareOfColstrip_9F0AF9278902A8EAF7ECC89BB0C2299F" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_9E1E32FD5D13EEFB8558C89BB0C23E7C" xlink:to="loc_por_JointlyOwnedUtilityPlantProportionateOwnershipShareOfColstrip_9F0AF9278902A8EAF7ECC89BB0C2299F" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CivilPenaltyClaimPerDayPerViolationThroughJanuary122009" xlink:label="loc_por_CivilPenaltyClaimPerDayPerViolationThroughJanuary122009_DB1D02C92B8E0F67B137C89BB0C29762" xlink:type="locator" />
    <presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_9E1E32FD5D13EEFB8558C89BB0C23E7C" xlink:to="loc_por_CivilPenaltyClaimPerDayPerViolationThroughJanuary122009_DB1D02C92B8E0F67B137C89BB0C29762" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CivilPenaltyClaimPerDayPerViolationAfterJanuary122009" xlink:label="loc_por_CivilPenaltyClaimPerDayPerViolationAfterJanuary122009_B913B1D0658B9BDB2BADC89BB0C2D749" xlink:type="locator" />
    <presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_9E1E32FD5D13EEFB8558C89BB0C23E7C" xlink:to="loc_por_CivilPenaltyClaimPerDayPerViolationAfterJanuary122009_B913B1D0658B9BDB2BADC89BB0C2D749" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_Claimsmovedtodismiss" xlink:label="loc_por_Claimsmovedtodismiss_998290DE565B81997B47C89BB0C228B4" xlink:type="locator" />
    <presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_9E1E32FD5D13EEFB8558C89BB0C23E7C" xlink:to="loc_por_Claimsmovedtodismiss_998290DE565B81997B47C89BB0C228B4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LossContingencyPendingClaimsNumber" xlink:label="loc_us-gaap_LossContingencyPendingClaimsNumber_71D1BE48F0A4BAD4B56DC89BB0C211AA" xlink:type="locator" />
    <presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_9E1E32FD5D13EEFB8558C89BB0C23E7C" xlink:to="loc_us-gaap_LossContingencyPendingClaimsNumber_71D1BE48F0A4BAD4B56DC89BB0C211AA" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_Projectsaddedtoplaintiffssuit" xlink:label="loc_por_Projectsaddedtoplaintiffssuit_6892A2FDB12B800B7CC6C89BB0C2DF9D" xlink:type="locator" />
    <presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_9E1E32FD5D13EEFB8558C89BB0C23E7C" xlink:to="loc_por_Projectsaddedtoplaintiffssuit_6892A2FDB12B800B7CC6C89BB0C2DF9D" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_Projectsencompassedbysuit" xlink:label="loc_por_Projectsencompassedbysuit_32B5CE17B3C78EEA399AC89BB0C25A98" xlink:type="locator" />
    <presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_9E1E32FD5D13EEFB8558C89BB0C23E7C" xlink:to="loc_por_Projectsencompassedbysuit_32B5CE17B3C78EEA399AC89BB0C25A98" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/ContingenciesPolicies" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_ContingenciesAbstract" xlink:label="loc_por_ContingenciesAbstract_50506530395ED3A37A8AEADE7D5EDA99" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommitmentsAndContingenciesPolicyTextBlock" xlink:label="loc_us-gaap_CommitmentsAndContingenciesPolicyTextBlock_72EFE0A3C765E072EA72EADE7D5EAB33" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_ContingenciesAbstract_50506530395ED3A37A8AEADE7D5EDA99" xlink:to="loc_us-gaap_CommitmentsAndContingenciesPolicyTextBlock_72EFE0A3C765E072EA72EADE7D5EAB33" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/CounterpartiesRepresenting10OrMoreDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_PriceRiskManagementAbstract" xlink:label="loc_por_PriceRiskManagementAbstract_376AC8C849A6B086B37389CD96CB64EA" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ConcentrationRiskTable" xlink:label="loc_us-gaap_ConcentrationRiskTable_AA7364CEEC12F0330F7B89CD96CB6942" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_PriceRiskManagementAbstract_376AC8C849A6B086B37389CD96CB64EA" xlink:to="loc_us-gaap_ConcentrationRiskTable_AA7364CEEC12F0330F7B89CD96CB6942" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ConcentrationRiskByTypeAxis" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_578414EA1BF2CB7942FA89CD96CB395C" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskTable_AA7364CEEC12F0330F7B89CD96CB6942" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_578414EA1BF2CB7942FA89CD96CB395C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ConcentrationRiskTypeDomain" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_F470AB6EA0CC2FFADF2B89CD96CB1BFE" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_578414EA1BF2CB7942FA89CD96CB395C" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_F470AB6EA0CC2FFADF2B89CD96CB1BFE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ConcentrationRiskLineItems" xlink:label="loc_us-gaap_ConcentrationRiskLineItems_042063083815DC74B1D289CD96CBBFC0" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskTable_AA7364CEEC12F0330F7B89CD96CB6942" xlink:to="loc_us-gaap_ConcentrationRiskLineItems_042063083815DC74B1D289CD96CBBFC0" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_AssetsFromPriceRiskManagementActivitiesAbstract" xlink:label="loc_por_AssetsFromPriceRiskManagementActivitiesAbstract_1865D77FDFE3ABDA876689CD96CBFDEE" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_042063083815DC74B1D289CD96CBBFC0" xlink:to="loc_por_AssetsFromPriceRiskManagementActivitiesAbstract_1865D77FDFE3ABDA876689CD96CBFDEE" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CounterpartyA" xlink:label="loc_por_CounterpartyA_97ADD6CD4E578F01AE4C89CD96CBDC91" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_AssetsFromPriceRiskManagementActivitiesAbstract_1865D77FDFE3ABDA876689CD96CBFDEE" xlink:to="loc_por_CounterpartyA_97ADD6CD4E578F01AE4C89CD96CBDC91" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CounterpartyB" xlink:label="loc_por_CounterpartyB_6D23FDC2B50AFDF3F3AF89CD96CBA0F2" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_AssetsFromPriceRiskManagementActivitiesAbstract_1865D77FDFE3ABDA876689CD96CBFDEE" xlink:to="loc_por_CounterpartyB_6D23FDC2B50AFDF3F3AF89CD96CBA0F2" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_ConcentrationOfRiskDerivativeInstrumentsAssets" xlink:label="loc_por_ConcentrationOfRiskDerivativeInstrumentsAssets_D6587B9124AA108A681D89CD96CBCF44" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_AssetsFromPriceRiskManagementActivitiesAbstract_1865D77FDFE3ABDA876689CD96CBFDEE" xlink:to="loc_por_ConcentrationOfRiskDerivativeInstrumentsAssets_D6587B9124AA108A681D89CD96CBCF44" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_LiabilitiesFromPriceRiskManagementActivitiesAbstract" xlink:label="loc_por_LiabilitiesFromPriceRiskManagementActivitiesAbstract_89B891F6F730DAF6902089CD96CBA839" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_042063083815DC74B1D289CD96CBBFC0" xlink:to="loc_por_LiabilitiesFromPriceRiskManagementActivitiesAbstract_89B891F6F730DAF6902089CD96CBA839" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CounterpartyC" xlink:label="loc_por_CounterpartyC_0D835BC6FCE899D25C4D89D81DD522A3" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_LiabilitiesFromPriceRiskManagementActivitiesAbstract_89B891F6F730DAF6902089CD96CBA839" xlink:to="loc_por_CounterpartyC_0D835BC6FCE899D25C4D89D81DD522A3" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CounterpartyGPrmLiabilities" xlink:label="loc_por_CounterpartyGPrmLiabilities_4C7C0AA5528CEBDDD58089CD96CB4705" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_LiabilitiesFromPriceRiskManagementActivitiesAbstract_89B891F6F730DAF6902089CD96CBA839" xlink:to="loc_por_CounterpartyGPrmLiabilities_4C7C0AA5528CEBDDD58089CD96CB4705" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CounterpartyE" xlink:label="loc_por_CounterpartyE_AF983867914A48C17FA389DE6CFA0BB5" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_LiabilitiesFromPriceRiskManagementActivitiesAbstract_89B891F6F730DAF6902089CD96CBA839" xlink:to="loc_por_CounterpartyE_AF983867914A48C17FA389DE6CFA0BB5" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CounterpartyF" xlink:label="loc_por_CounterpartyF_8366A3F717E2219AEC0A89CD96CB7088" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_LiabilitiesFromPriceRiskManagementActivitiesAbstract_89B891F6F730DAF6902089CD96CBA839" xlink:to="loc_por_CounterpartyF_8366A3F717E2219AEC0A89CD96CB7088" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_ConcentrationOfRiskDerivativeInstrumentsLiabilities" xlink:label="loc_por_ConcentrationOfRiskDerivativeInstrumentsLiabilities_142E21A34B03C33E80EC89CD96CBC5FB" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_LiabilitiesFromPriceRiskManagementActivitiesAbstract_89B891F6F730DAF6902089CD96CBA839" xlink:to="loc_por_ConcentrationOfRiskDerivativeInstrumentsLiabilities_142E21A34B03C33E80EC89CD96CBC5FB" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/CreditFacilities" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityAbstract" xlink:label="loc_us-gaap_LineOfCreditFacilityAbstract_0E6D0FA28BF6A7EB1551A9743B68BAEC" xlink:type="locator" />
    <loc xlink:href="por-20151231.xsd#por_RevolvingCreditFacilitiesTextBlock" xlink:label="loc_por_RevolvingCreditFacilitiesTextBlock_865015C642C3A4F92943A9743B684A8F" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityAbstract_0E6D0FA28BF6A7EB1551A9743B68BAEC" xlink:to="loc_por_RevolvingCreditFacilitiesTextBlock_865015C642C3A4F92943A9743B684A8F" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/CreditFacilitiesDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityAbstract" xlink:label="loc_us-gaap_LineOfCreditFacilityAbstract_60C24C7428F7B6E85334AD6050A34AD0" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_CBE66DB7DB727C0DE2F5AD6050A3E814" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityAbstract_60C24C7428F7B6E85334AD6050A34AD0" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_CBE66DB7DB727C0DE2F5AD6050A3E814" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_LineOfCreditFacitlityCovenantTermsOneMonthTerm" xlink:label="loc_por_LineOfCreditFacitlityCovenantTermsOneMonthTerm_985858C39B0243C52E84AD6050A37BC0" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityAbstract_60C24C7428F7B6E85334AD6050A34AD0" xlink:to="loc_por_LineOfCreditFacitlityCovenantTermsOneMonthTerm_985858C39B0243C52E84AD6050A37BC0" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_LineOfCreditFacitlityCovenantTermsTwoMonthTerm" xlink:label="loc_por_LineOfCreditFacitlityCovenantTermsTwoMonthTerm_17A04CC0A51D541490F3AD6050A3F052" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityAbstract_60C24C7428F7B6E85334AD6050A34AD0" xlink:to="loc_por_LineOfCreditFacitlityCovenantTermsTwoMonthTerm_17A04CC0A51D541490F3AD6050A3F052" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_LineOfCreditFacitlityCovenantTermsThreeMonthTerm" xlink:label="loc_por_LineOfCreditFacitlityCovenantTermsThreeMonthTerm_C342E2FC9582EFE27863AD6050A38E48" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityAbstract_60C24C7428F7B6E85334AD6050A34AD0" xlink:to="loc_por_LineOfCreditFacitlityCovenantTermsThreeMonthTerm_C342E2FC9582EFE27863AD6050A38E48" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_LineOfCreditFacitlityCovenantTermsSixMonthTerm" xlink:label="loc_por_LineOfCreditFacitlityCovenantTermsSixMonthTerm_66ABD2DB8FADFE9061B2AD6050A34AD5" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityAbstract_60C24C7428F7B6E85334AD6050A34AD0" xlink:to="loc_por_LineOfCreditFacitlityCovenantTermsSixMonthTerm_66ABD2DB8FADFE9061B2AD6050A34AD5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentCovenantDescription" xlink:label="loc_us-gaap_DebtInstrumentCovenantDescription_63B939943CF7B3CA523FAD6050A3CD1E" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityAbstract_60C24C7428F7B6E85334AD6050A34AD0" xlink:to="loc_us-gaap_DebtInstrumentCovenantDescription_63B939943CF7B3CA523FAD6050A3CD1E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RatioOfIndebtednessToNetCapital1" xlink:label="loc_us-gaap_RatioOfIndebtednessToNetCapital1_303B6674CEDD9D015D0CAD6050A3B9B7" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityAbstract_60C24C7428F7B6E85334AD6050A34AD0" xlink:to="loc_us-gaap_RatioOfIndebtednessToNetCapital1_303B6674CEDD9D015D0CAD6050A3B9B7" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CommercialPaperMaximumTerm" xlink:label="loc_por_CommercialPaperMaximumTerm_3D00465CFFC92F3CC084AD6050A374ED" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityAbstract_60C24C7428F7B6E85334AD6050A34AD0" xlink:to="loc_por_CommercialPaperMaximumTerm_3D00465CFFC92F3CC084AD6050A374ED" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommercialPaper" xlink:label="loc_us-gaap_CommercialPaper_5194CF2F9C83441D9BCDAD826ED48442" xlink:type="locator" />
    <presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityAbstract_60C24C7428F7B6E85334AD6050A34AD0" xlink:to="loc_us-gaap_CommercialPaper_5194CF2F9C83441D9BCDAD826ED48442" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_FercAuthorizedShortTermDebtEffectiveThroughFebruary62014" xlink:label="loc_por_FercAuthorizedShortTermDebtEffectiveThroughFebruary62014_0A3E809813430652EAEEAD6050A34CA8" xlink:type="locator" />
    <presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityAbstract_60C24C7428F7B6E85334AD6050A34AD0" xlink:to="loc_por_FercAuthorizedShortTermDebtEffectiveThroughFebruary62014_0A3E809813430652EAEEAD6050A34CA8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCredit" xlink:label="loc_us-gaap_LineOfCredit_84B89D76EDC585F6456AAD6050A3FF3E" xlink:type="locator" />
    <presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityAbstract_60C24C7428F7B6E85334AD6050A34AD0" xlink:to="loc_us-gaap_LineOfCredit_84B89D76EDC585F6456AAD6050A3FF3E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_82C4B8C54A13F91A5A36AD6050A31939" xlink:type="locator" />
    <presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityAbstract_60C24C7428F7B6E85334AD6050A34AD0" xlink:to="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_82C4B8C54A13F91A5A36AD6050A31939" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_Letterofcreditfacility" xlink:label="loc_por_Letterofcreditfacility_13CE1E4F72DEA3A51D88AD8D354F2861" xlink:type="locator" />
    <presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityAbstract_60C24C7428F7B6E85334AD6050A34AD0" xlink:to="loc_por_Letterofcreditfacility_13CE1E4F72DEA3A51D88AD8D354F2861" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForLetterOfCreditFacilities" xlink:label="loc_us-gaap_PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForLetterOfCreditFacilities_B7EBBF11B58701340CE6AD6050A38C5F" xlink:type="locator" />
    <presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityAbstract_60C24C7428F7B6E85334AD6050A34AD0" xlink:to="loc_us-gaap_PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForLetterOfCreditFacilities_B7EBBF11B58701340CE6AD6050A38C5F" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/CreditFacilitiesScheduleOfShortTermDebtDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityAbstract" xlink:label="loc_us-gaap_LineOfCreditFacilityAbstract_F19AAE8FE3FE99AD3C65A9840DA47167" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfShortTermDebtTable" xlink:label="loc_us-gaap_ScheduleOfShortTermDebtTable_E5EDC8C61365CB31F2D2A9743B68F0F4" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityAbstract_F19AAE8FE3FE99AD3C65A9840DA47167" xlink:to="loc_us-gaap_ScheduleOfShortTermDebtTable_E5EDC8C61365CB31F2D2A9743B68F0F4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShortTermDebtTypeAxis" xlink:label="loc_us-gaap_ShortTermDebtTypeAxis_14F3E1E78F2A771D72EFA9743B682449" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShortTermDebtTable_E5EDC8C61365CB31F2D2A9743B68F0F4" xlink:to="loc_us-gaap_ShortTermDebtTypeAxis_14F3E1E78F2A771D72EFA9743B682449" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShortTermDebtTypeDomain" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_C5359117B1AC855EBCC2A9743B683BA8" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_14F3E1E78F2A771D72EFA9743B682449" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_C5359117B1AC855EBCC2A9743B683BA8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="loc_us-gaap_DebtInstrumentAxis_5774B1C600EA927CD938A9743B684001" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShortTermDebtTable_E5EDC8C61365CB31F2D2A9743B68F0F4" xlink:to="loc_us-gaap_DebtInstrumentAxis_5774B1C600EA927CD938A9743B684001" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_390B3D208E5284E34873A9743B68A20A" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_5774B1C600EA927CD938A9743B684001" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_390B3D208E5284E34873A9743B68A20A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShortTermDebtLineItems" xlink:label="loc_us-gaap_ShortTermDebtLineItems_1AD96D84F7F2185ED376A9743B68E2A6" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShortTermDebtTable_E5EDC8C61365CB31F2D2A9743B68F0F4" xlink:to="loc_us-gaap_ShortTermDebtLineItems_1AD96D84F7F2185ED376A9743B68E2A6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShorttermDebtAverageOutstandingAmount" xlink:label="loc_us-gaap_ShorttermDebtAverageOutstandingAmount_B3BECEBA747191870CAFA9743B68FC88" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShortTermDebtLineItems_1AD96D84F7F2185ED376A9743B68E2A6" xlink:to="loc_us-gaap_ShorttermDebtAverageOutstandingAmount_B3BECEBA747191870CAFA9743B68FC88" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShortTermDebtWeightedAverageInterestRate" xlink:label="loc_us-gaap_ShortTermDebtWeightedAverageInterestRate_E316429BAB997770FD1BA9743B689309" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShortTermDebtLineItems_1AD96D84F7F2185ED376A9743B68E2A6" xlink:to="loc_us-gaap_ShortTermDebtWeightedAverageInterestRate_E316429BAB997770FD1BA9743B689309" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_ShortTermDebtMaximumAmountOutstandingDuringYear" xlink:label="loc_por_ShortTermDebtMaximumAmountOutstandingDuringYear_D50C7865975B66C38316A9743B689D8C" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShortTermDebtLineItems_1AD96D84F7F2185ED376A9743B68E2A6" xlink:to="loc_por_ShortTermDebtMaximumAmountOutstandingDuringYear_D50C7865975B66C38316A9743B689D8C" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/CreditFacilitiesTables" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityAbstract" xlink:label="loc_us-gaap_LineOfCreditFacilityAbstract_8DF7938714DC792A93B4A9743B6836A0" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfShortTermDebtTextBlock" xlink:label="loc_us-gaap_ScheduleOfShortTermDebtTextBlock_1C8ED717589199D09169A9743B6882AD" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityAbstract_8DF7938714DC792A93B4A9743B6836A0" xlink:to="loc_us-gaap_ScheduleOfShortTermDebtTextBlock_1C8ED717589199D09169A9743B6882AD" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/DeiDocument" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_DeiAbstract" xlink:label="loc_por_DeiAbstract_1ABC3013ACB97279E1C8EADE7DF47DEE" xlink:type="locator" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntitiesTable" xlink:label="loc_dei_EntitiesTable_2BAF7AC5078BC56E8002EADE7DF4636A" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_DeiAbstract_1ABC3013ACB97279E1C8EADE7DF47DEE" xlink:to="loc_dei_EntitiesTable_2BAF7AC5078BC56E8002EADE7DF4636A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_LegalEntityAxis" xlink:label="loc_dei_LegalEntityAxis_0FF991F13B6697661AA6EADE7DF49B7F" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntitiesTable_2BAF7AC5078BC56E8002EADE7DF4636A" xlink:to="loc_dei_LegalEntityAxis_0FF991F13B6697661AA6EADE7DF49B7F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain_22831492E4D12B9CADC1EADE7DF45E31" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_LegalEntityAxis_0FF991F13B6697661AA6EADE7DF49B7F" xlink:to="loc_dei_EntityDomain_22831492E4D12B9CADC1EADE7DF45E31" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityInformationLineItems" xlink:label="loc_dei_EntityInformationLineItems_9F837FE412A2729F741DEADE7DF472F6" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntitiesTable_2BAF7AC5078BC56E8002EADE7DF4636A" xlink:to="loc_dei_EntityInformationLineItems_9F837FE412A2729F741DEADE7DF472F6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityRegistrantName" xlink:label="loc_dei_EntityRegistrantName_ECC173D22D0F3D62F237EADE7DF4F375" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_9F837FE412A2729F741DEADE7DF472F6" xlink:to="loc_dei_EntityRegistrantName_ECC173D22D0F3D62F237EADE7DF4F375" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCentralIndexKey" xlink:label="loc_dei_EntityCentralIndexKey_FB67CA74DA38E0068AC1EADE7DF47435" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_9F837FE412A2729F741DEADE7DF472F6" xlink:to="loc_dei_EntityCentralIndexKey_FB67CA74DA38E0068AC1EADE7DF47435" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentType" xlink:label="loc_dei_DocumentType_0EBF5971D1BE869FF74DEADE7DF440F8" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_9F837FE412A2729F741DEADE7DF472F6" xlink:to="loc_dei_DocumentType_0EBF5971D1BE869FF74DEADE7DF440F8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="loc_dei_DocumentPeriodEndDate_2D819F4709104F3BC651EADE7DF41507" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_9F837FE412A2729F741DEADE7DF472F6" xlink:to="loc_dei_DocumentPeriodEndDate_2D819F4709104F3BC651EADE7DF41507" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_AmendmentFlag" xlink:label="loc_dei_AmendmentFlag_42EE171BBCED8A10E198EADE7DF46F96" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_9F837FE412A2729F741DEADE7DF472F6" xlink:to="loc_dei_AmendmentFlag_42EE171BBCED8A10E198EADE7DF46F96" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentFiscalYearFocus" xlink:label="loc_dei_DocumentFiscalYearFocus_AE0C9666376E98202091EADE7DF40F57" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_9F837FE412A2729F741DEADE7DF472F6" xlink:to="loc_dei_DocumentFiscalYearFocus_AE0C9666376E98202091EADE7DF40F57" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="loc_dei_DocumentFiscalPeriodFocus_8C2EF42E2B3D73AF639DEADE7DF43D9F" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_9F837FE412A2729F741DEADE7DF472F6" xlink:to="loc_dei_DocumentFiscalPeriodFocus_8C2EF42E2B3D73AF639DEADE7DF43D9F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_CurrentFiscalYearEndDate" xlink:label="loc_dei_CurrentFiscalYearEndDate_BF7D0FD3A4356F43D2CFEADE7DF4F78E" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_9F837FE412A2729F741DEADE7DF472F6" xlink:to="loc_dei_CurrentFiscalYearEndDate_BF7D0FD3A4356F43D2CFEADE7DF4F78E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="loc_dei_EntityWellKnownSeasonedIssuer_1BF4B81A4E9E6663C25CEADE7DF4434E" xlink:type="locator" />
    <presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_9F837FE412A2729F741DEADE7DF472F6" xlink:to="loc_dei_EntityWellKnownSeasonedIssuer_1BF4B81A4E9E6663C25CEADE7DF4434E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCurrentReportingStatus" xlink:label="loc_dei_EntityCurrentReportingStatus_EDC6AE7AAE0BE8A76B07EADE7DF4E50F" xlink:type="locator" />
    <presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_9F837FE412A2729F741DEADE7DF472F6" xlink:to="loc_dei_EntityCurrentReportingStatus_EDC6AE7AAE0BE8A76B07EADE7DF4E50F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityVoluntaryFilers" xlink:label="loc_dei_EntityVoluntaryFilers_9F17251D3AE6474567A1EADE7DF40DB6" xlink:type="locator" />
    <presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_9F837FE412A2729F741DEADE7DF472F6" xlink:to="loc_dei_EntityVoluntaryFilers_9F17251D3AE6474567A1EADE7DF40DB6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityFilerCategory" xlink:label="loc_dei_EntityFilerCategory_A1E0C95A712B050F6562EADE7DF4C3A4" xlink:type="locator" />
    <presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_9F837FE412A2729F741DEADE7DF472F6" xlink:to="loc_dei_EntityFilerCategory_A1E0C95A712B050F6562EADE7DF4C3A4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_074DC70960A435A89392EADE7DF4A5C8" xlink:type="locator" />
    <presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_9F837FE412A2729F741DEADE7DF472F6" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_074DC70960A435A89392EADE7DF4A5C8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityPublicFloat" xlink:label="loc_dei_EntityPublicFloat_1C851495EE9896F71C19EADE7DF4F3AC" xlink:type="locator" />
    <presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_9F837FE412A2729F741DEADE7DF472F6" xlink:to="loc_dei_EntityPublicFloat_1C851495EE9896F71C19EADE7DF4F3AC" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_TradingSymbol" xlink:label="loc_dei_TradingSymbol_D775A7185A24A4A94A59EADE7DF45B80" xlink:type="locator" />
    <presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_9F837FE412A2729F741DEADE7DF472F6" xlink:to="loc_dei_TradingSymbol_D775A7185A24A4A94A59EADE7DF45B80" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/EarningsPerShare" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_9AF404D928A8BC9D4743EADE7DCCE154" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareTextBlock" xlink:label="loc_us-gaap_EarningsPerShareTextBlock_9EA998A97F2AA9D20689EADE7DCC011B" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_9AF404D928A8BC9D4743EADE7DCCE154" xlink:to="loc_us-gaap_EarningsPerShareTextBlock_9EA998A97F2AA9D20689EADE7DCC011B" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/EarningsPerShareEarningsPerShareDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_CD6D44538161C4C7269CA96097F91FE4" xlink:type="locator" />
    <loc xlink:href="por-20151231.xsd#por_Stockoffering" xlink:label="loc_por_Stockoffering_CAE151688E7015C6BAEEA9609808981E" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_CD6D44538161C4C7269CA96097F91FE4" xlink:to="loc_por_Stockoffering_CAE151688E7015C6BAEEA9609808981E" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/EarningsPerShareScheduleOfEarningsPerShareBasicAndDilutedDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_73648E95AD0F594789E5EADE7D183748" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable_FC9E15F34EC23E9FC584EADE7D180DDA" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_73648E95AD0F594789E5EADE7D183748" xlink:to="loc_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable_FC9E15F34EC23E9FC584EADE7D180DDA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_8C93DD99675618E28D77EADE7D186353" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable_FC9E15F34EC23E9FC584EADE7D180DDA" xlink:to="loc_us-gaap_StatementClassOfStockAxis_8C93DD99675618E28D77EADE7D186353" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_7F10660A45B3F6CC1550EADE7D1815E4" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_8C93DD99675618E28D77EADE7D186353" xlink:to="loc_us-gaap_ClassOfStockDomain_7F10660A45B3F6CC1550EADE7D1815E4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareBasicLineItems" xlink:label="loc_us-gaap_EarningsPerShareBasicLineItems_7E3AF1ADA074836F3164EADE7D1827E9" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable_FC9E15F34EC23E9FC584EADE7D180DDA" xlink:to="loc_us-gaap_EarningsPerShareBasicLineItems_7E3AF1ADA074836F3164EADE7D1827E9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_2CA7865265A51A3BA558EADE7D1862A8" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_7E3AF1ADA074836F3164EADE7D1827E9" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_2CA7865265A51A3BA558EADE7D1862A8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment" xlink:label="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_C7ECFC2AE3328A439EE1EADE7D182929" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_7E3AF1ADA074836F3164EADE7D1827E9" xlink:to="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_C7ECFC2AE3328A439EE1EADE7D182929" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_901365B4F1679F0DCD59EADE7D183260" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_7E3AF1ADA074836F3164EADE7D1827E9" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_901365B4F1679F0DCD59EADE7D183260" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/EarningsPerShareTables" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_73AF18B9AD28590A43C3EADE7DC2AADC" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_F39FDB04352D0939F36CEADE7DC2B048" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_73AF18B9AD28590A43C3EADE7DC2AADC" xlink:to="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_F39FDB04352D0939F36CEADE7DC2B048" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/EmployeeBenefits" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_EmployeeBenefitsAbstract" xlink:label="loc_por_EmployeeBenefitsAbstract_C053096A5B7CAF0B7741EADE7DCCC390" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:label="loc_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_10C9649E3BCB646EDB56EADE7DCCE83E" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_C053096A5B7CAF0B7741EADE7DCCC390" xlink:to="loc_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_10C9649E3BCB646EDB56EADE7DCCE83E" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/EmployeeBenefitsAssetsAndLiabilitiesAssociatedWithNonQualifiedBenefitPlansDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_EmployeeBenefitsAbstract" xlink:label="loc_por_EmployeeBenefitsAbstract_D66145BF0934918A734AEADE7EE410F9" xlink:type="locator" />
    <loc xlink:href="por-20151231.xsd#por_AssetsAndLiabilitesAssociatedWithNonQualifiedBenefitPlansTable" xlink:label="loc_por_AssetsAndLiabilitesAssociatedWithNonQualifiedBenefitPlansTable_3E8DADA754AB02B171B6EADE7EE42797" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_D66145BF0934918A734AEADE7EE410F9" xlink:to="loc_por_AssetsAndLiabilitesAssociatedWithNonQualifiedBenefitPlansTable_3E8DADA754AB02B171B6EADE7EE42797" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:label="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_336034FD8B61C47E6FB3EADE7EE4E504" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_AssetsAndLiabilitesAssociatedWithNonQualifiedBenefitPlansTable_3E8DADA754AB02B171B6EADE7EE42797" xlink:to="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_336034FD8B61C47E6FB3EADE7EE4E504" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansDomain" xlink:label="loc_us-gaap_DefinedBenefitPlansDomain_381D7171FDFDEFDD8A82EADE7EE4171F" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_336034FD8B61C47E6FB3EADE7EE4E504" xlink:to="loc_us-gaap_DefinedBenefitPlansDomain_381D7171FDFDEFDD8A82EADE7EE4171F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" xlink:label="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_CF2F2F5B4CCF238E3CA2EADE7EE4F89E" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/netLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansDomain_381D7171FDFDEFDD8A82EADE7EE4171F" xlink:to="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_CF2F2F5B4CCF238E3CA2EADE7EE4F89E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherPensionPlansDefinedBenefitMember" xlink:label="loc_us-gaap_OtherPensionPlansDefinedBenefitMember_A04C5FB50C54D3CFB40FEADE7EE442EE" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_CF2F2F5B4CCF238E3CA2EADE7EE4F89E" xlink:to="loc_us-gaap_OtherPensionPlansDefinedBenefitMember_A04C5FB50C54D3CFB40FEADE7EE442EE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefitMember" xlink:label="loc_us-gaap_OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefitMember_2B733E3F42E6BC9C057DEADE7EE496FF" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_CF2F2F5B4CCF238E3CA2EADE7EE4F89E" xlink:to="loc_us-gaap_OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefitMember_2B733E3F42E6BC9C057DEADE7EE496FF" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UnitedStatesPostretirementBenefitPlansOfUSEntityDefinedBenefitMember" xlink:label="loc_us-gaap_UnitedStatesPostretirementBenefitPlansOfUSEntityDefinedBenefitMember_06D80CA2B54BB4ECD167EADE7EE495D2" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_CF2F2F5B4CCF238E3CA2EADE7EE4F89E" xlink:to="loc_us-gaap_UnitedStatesPostretirementBenefitPlansOfUSEntityDefinedBenefitMember_06D80CA2B54BB4ECD167EADE7EE495D2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_A1C0D76D8F9F9B624897EADE7EE4B023" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_AssetsAndLiabilitesAssociatedWithNonQualifiedBenefitPlansTable_3E8DADA754AB02B171B6EADE7EE42797" xlink:to="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_A1C0D76D8F9F9B624897EADE7EE4B023" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetsHeldInTrustNoncurrent" xlink:label="loc_us-gaap_AssetsHeldInTrustNoncurrent_212C5C7CBCC4FC777538EADE7EE40C91" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_A1C0D76D8F9F9B624897EADE7EE4B023" xlink:to="loc_us-gaap_AssetsHeldInTrustNoncurrent_212C5C7CBCC4FC777538EADE7EE40C91" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent" xlink:label="loc_us-gaap_OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent_5599D7CB15A975924795EADE7EE42F96" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_A1C0D76D8F9F9B624897EADE7EE4B023" xlink:to="loc_us-gaap_OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent_5599D7CB15A975924795EADE7EE42F96" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/EmployeeBenefitsDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_EmployeeBenefitsAbstract" xlink:label="loc_por_EmployeeBenefitsAbstract_B7DEFD8A7F43D11C48EFB8896918DC35" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:label="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_B9F189E7BDA08D37E229B88969185B4B" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_B7DEFD8A7F43D11C48EFB8896918DC35" xlink:to="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_B9F189E7BDA08D37E229B88969185B4B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:label="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_9130E1DDD36BDAA1C3FAB8896918F65A" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_B9F189E7BDA08D37E229B88969185B4B" xlink:to="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_9130E1DDD36BDAA1C3FAB8896918F65A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansDomain" xlink:label="loc_us-gaap_DefinedBenefitPlansDomain_4D15ECD6CB4685057A0EB8896918462C" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_9130E1DDD36BDAA1C3FAB8896918F65A" xlink:to="loc_us-gaap_DefinedBenefitPlansDomain_4D15ECD6CB4685057A0EB8896918462C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis" xlink:label="loc_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis_72C53D99C8A8357FA89EB889691876B8" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_B9F189E7BDA08D37E229B88969185B4B" xlink:to="loc_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis_72C53D99C8A8357FA89EB889691876B8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PlanAssetCategoriesDomain" xlink:label="loc_us-gaap_PlanAssetCategoriesDomain_7577BA31518834E2AF0CB88969185190" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis_72C53D99C8A8357FA89EB889691876B8" xlink:to="loc_us-gaap_PlanAssetCategoriesDomain_7577BA31518834E2AF0CB88969185190" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquitySecuritiesByIndustryAxis" xlink:label="loc_us-gaap_EquitySecuritiesByIndustryAxis_2F3806444D72D20504D0B889691827EA" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_B9F189E7BDA08D37E229B88969185B4B" xlink:to="loc_us-gaap_EquitySecuritiesByIndustryAxis_2F3806444D72D20504D0B889691827EA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquitySecuritiesIndustryMember" xlink:label="loc_us-gaap_EquitySecuritiesIndustryMember_ADA93165605DC2B646FBB8896918B120" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesByIndustryAxis_2F3806444D72D20504D0B889691827EA" xlink:to="loc_us-gaap_EquitySecuritiesIndustryMember_ADA93165605DC2B646FBB8896918B120" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquitySecuritiesByEntitySizeAxis" xlink:label="loc_us-gaap_EquitySecuritiesByEntitySizeAxis_DCEF190564D8D7812E02B8896918ED64" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_B9F189E7BDA08D37E229B88969185B4B" xlink:to="loc_us-gaap_EquitySecuritiesByEntitySizeAxis_DCEF190564D8D7812E02B8896918ED64" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquitySecuritiesEntitySizeMember" xlink:label="loc_us-gaap_EquitySecuritiesEntitySizeMember_862D8B6923502DC98C7EB8896918120A" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesByEntitySizeAxis_DCEF190564D8D7812E02B8896918ED64" xlink:to="loc_us-gaap_EquitySecuritiesEntitySizeMember_862D8B6923502DC98C7EB8896918120A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquitySecuritiesByInvestmentObjectiveAxis" xlink:label="loc_us-gaap_EquitySecuritiesByInvestmentObjectiveAxis_5347409A2E1165AE6649B8896918076C" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_B9F189E7BDA08D37E229B88969185B4B" xlink:to="loc_us-gaap_EquitySecuritiesByInvestmentObjectiveAxis_5347409A2E1165AE6649B8896918076C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquitySecuritiesInvestmentObjectiveMember" xlink:label="loc_us-gaap_EquitySecuritiesInvestmentObjectiveMember_0426199646CE54952CCEB8896918E899" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesByInvestmentObjectiveAxis_5347409A2E1165AE6649B8896918076C" xlink:to="loc_us-gaap_EquitySecuritiesInvestmentObjectiveMember_0426199646CE54952CCEB8896918E899" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_90ADDA0F9B056E096612B88969183DE4" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_B9F189E7BDA08D37E229B88969185B4B" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_90ADDA0F9B056E096612B88969183DE4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_698C43D69AA7650A6CBBB889691819AD" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_90ADDA0F9B056E096612B88969183DE4" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_698C43D69AA7650A6CBBB889691819AD" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanDisclosureLineItems" xlink:label="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_C1ECDA046D10F0377BD5B889691861C6" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_B9F189E7BDA08D37E229B88969185B4B" xlink:to="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_C1ECDA046D10F0377BD5B889691861C6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PensionContributions" xlink:label="loc_us-gaap_PensionContributions_730F44701F087F9DD27AB889691896DA" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_B7DEFD8A7F43D11C48EFB8896918DC35" xlink:to="loc_us-gaap_PensionContributions_730F44701F087F9DD27AB889691896DA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanBenefitsPaid" xlink:label="loc_us-gaap_DefinedBenefitPlanBenefitsPaid_C0D0D3E50373863D0AB7B8896918092F" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_B7DEFD8A7F43D11C48EFB8896918DC35" xlink:to="loc_us-gaap_DefinedBenefitPlanBenefitsPaid_C0D0D3E50373863D0AB7B8896918092F" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_Contributiontohealthreimbursementaccountsicktime" xlink:label="loc_por_Contributiontohealthreimbursementaccountsicktime_D03E9513DEA3A08BA123B88969188D37" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_B7DEFD8A7F43D11C48EFB8896918DC35" xlink:to="loc_por_Contributiontohealthreimbursementaccountsicktime_D03E9513DEA3A08BA123B88969188D37" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_Contributiontohealthreimbursementaccountearnedtimeoff" xlink:label="loc_por_Contributiontohealthreimbursementaccountearnedtimeoff_19FD7E2B739AC3BB73AFB88969189A21" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_B7DEFD8A7F43D11C48EFB8896918DC35" xlink:to="loc_por_Contributiontohealthreimbursementaccountearnedtimeoff_19FD7E2B739AC3BB73AFB88969189A21" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_Otherpostretirementdefinedbenefitplanliabilitycurrent" xlink:label="loc_por_Otherpostretirementdefinedbenefitplanliabilitycurrent_A3459456A79BDADEE9E5B8896918BE73" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_B7DEFD8A7F43D11C48EFB8896918DC35" xlink:to="loc_por_Otherpostretirementdefinedbenefitplanliabilitycurrent_A3459456A79BDADEE9E5B8896918BE73" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAmountToBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossNextFiscalYear" xlink:label="loc_us-gaap_DefinedBenefitPlanAmountToBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossNextFiscalYear_20F8812BF7C08B512BABB8896918FEC9" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_B7DEFD8A7F43D11C48EFB8896918DC35" xlink:to="loc_us-gaap_DefinedBenefitPlanAmountToBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossNextFiscalYear_20F8812BF7C08B512BABB8896918FEC9" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_NetActuarialLossPortionOfAmortizationFromAoclForPensionBenefits" xlink:label="loc_por_NetActuarialLossPortionOfAmortizationFromAoclForPensionBenefits_D80E3ECB154BB10A3524B88969182713" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_B7DEFD8A7F43D11C48EFB8896918DC35" xlink:to="loc_por_NetActuarialLossPortionOfAmortizationFromAoclForPensionBenefits_D80E3ECB154BB10A3524B88969182713" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_NetActuarialLossPortionOfAmortizationFromAoclForNonQualifiedBenefits" xlink:label="loc_por_NetActuarialLossPortionOfAmortizationFromAoclForNonQualifiedBenefits_5634D1B7E2B4A0E64A32B889691834BB" xlink:type="locator" />
    <presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_B7DEFD8A7F43D11C48EFB8896918DC35" xlink:to="loc_por_NetActuarialLossPortionOfAmortizationFromAoclForNonQualifiedBenefits_5634D1B7E2B4A0E64A32B889691834BB" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_NetActuarialLossPortionOfAmortiztionOfAoclForOtherPostretirementBenefits" xlink:label="loc_por_NetActuarialLossPortionOfAmortiztionOfAoclForOtherPostretirementBenefits_BBA714A5ADAEBA5F11D7B88969189735" xlink:type="locator" />
    <presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_B7DEFD8A7F43D11C48EFB8896918DC35" xlink:to="loc_por_NetActuarialLossPortionOfAmortiztionOfAoclForOtherPostretirementBenefits_BBA714A5ADAEBA5F11D7B88969189735" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_DefinedBenefitPlanCurrentAnnualRateOfHealthCareCostIncrease" xlink:label="loc_por_DefinedBenefitPlanCurrentAnnualRateOfHealthCareCostIncrease_38163454E38272BE8B96B88969185AD4" xlink:type="locator" />
    <presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_B7DEFD8A7F43D11C48EFB8896918DC35" xlink:to="loc_por_DefinedBenefitPlanCurrentAnnualRateOfHealthCareCostIncrease_38163454E38272BE8B96B88969185AD4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanDescriptionOfDirectionAndPatternOfChangeForAssumedHealthCareCostTrendRate" xlink:label="loc_us-gaap_DefinedBenefitPlanDescriptionOfDirectionAndPatternOfChangeForAssumedHealthCareCostTrendRate_45FBC995E9AA527DA2DAB88AEF37D6A3" xlink:type="locator" />
    <presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_B7DEFD8A7F43D11C48EFB8896918DC35" xlink:to="loc_us-gaap_DefinedBenefitPlanDescriptionOfDirectionAndPatternOfChangeForAssumedHealthCareCostTrendRate_45FBC995E9AA527DA2DAB88AEF37D6A3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanHealthCareCostTrendRateAssumedForNextFiscalYear" xlink:label="loc_us-gaap_DefinedBenefitPlanHealthCareCostTrendRateAssumedForNextFiscalYear_1232F32513AA2C4F7F82B88969180816" xlink:type="locator" />
    <presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_B7DEFD8A7F43D11C48EFB8896918DC35" xlink:to="loc_us-gaap_DefinedBenefitPlanHealthCareCostTrendRateAssumedForNextFiscalYear_1232F32513AA2C4F7F82B88969180816" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanUltimateHealthCareCostTrendRate" xlink:label="loc_us-gaap_DefinedBenefitPlanUltimateHealthCareCostTrendRate_890F87957C2DE0789F5DB88969183716" xlink:type="locator" />
    <presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_B7DEFD8A7F43D11C48EFB8896918DC35" xlink:to="loc_us-gaap_DefinedBenefitPlanUltimateHealthCareCostTrendRate_890F87957C2DE0789F5DB88969183716" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents" xlink:label="loc_us-gaap_DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents_CC9EDB24E58F5F89898FB88969184A11" xlink:type="locator" />
    <presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_B7DEFD8A7F43D11C48EFB8896918DC35" xlink:to="loc_us-gaap_DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents_CC9EDB24E58F5F89898FB88969184A11" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation" xlink:label="loc_us-gaap_DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation_98F066705C20A325EFDFB88969182478" xlink:type="locator" />
    <presentationArc order="16" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_B7DEFD8A7F43D11C48EFB8896918DC35" xlink:to="loc_us-gaap_DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation_98F066705C20A325EFDFB88969182478" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CompanyMatchPre2009Hire" xlink:label="loc_por_CompanyMatchPre2009Hire_555F9EFAA43C168F026AB88969185D45" xlink:type="locator" />
    <presentationArc order="17" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_B7DEFD8A7F43D11C48EFB8896918DC35" xlink:to="loc_por_CompanyMatchPre2009Hire_555F9EFAA43C168F026AB88969185D45" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CompanyMatchPost2008Hire" xlink:label="loc_por_CompanyMatchPost2008Hire_1B9DC14F0BBB53953BF4B88969187642" xlink:type="locator" />
    <presentationArc order="18" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_B7DEFD8A7F43D11C48EFB8896918DC35" xlink:to="loc_por_CompanyMatchPost2008Hire_1B9DC14F0BBB53953BF4B88969187642" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CompanyContributionPercentageTo401KForPost2008Hires" xlink:label="loc_por_CompanyContributionPercentageTo401KForPost2008Hires_5BE493908FA8C58376CDB889691805AC" xlink:type="locator" />
    <presentationArc order="19" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_B7DEFD8A7F43D11C48EFB8896918DC35" xlink:to="loc_por_CompanyContributionPercentageTo401KForPost2008Hires_5BE493908FA8C58376CDB889691805AC" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CompanyContributionPercentTo401KForBargainingEmployees" xlink:label="loc_por_CompanyContributionPercentTo401KForBargainingEmployees_6A555B2DAC59A8D548EFB8896918DD9B" xlink:type="locator" />
    <presentationArc order="20" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_B7DEFD8A7F43D11C48EFB8896918DC35" xlink:to="loc_por_CompanyContributionPercentTo401KForBargainingEmployees_6A555B2DAC59A8D548EFB8896918DD9B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount" xlink:label="loc_us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_6372925C47CEC2E2B642B8896918751F" xlink:type="locator" />
    <presentationArc order="21" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_B7DEFD8A7F43D11C48EFB8896918DC35" xlink:to="loc_us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_6372925C47CEC2E2B642B8896918751F" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/EmployeeBenefitsPolicies" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_EmployeeBenefitsAbstract" xlink:label="loc_por_EmployeeBenefitsAbstract_12E0006FEAE0D1529E0EEADE7D0ECE3E" xlink:type="locator" />
    <loc xlink:href="por-20151231.xsd#por_PensionAndOtherPostretirementBenefitsValuationMethodologyPolicyTextBlock" xlink:label="loc_por_PensionAndOtherPostretirementBenefitsValuationMethodologyPolicyTextBlock_4A85539EC0793BE45039EADE7D0E0A2B" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_12E0006FEAE0D1529E0EEADE7D0ECE3E" xlink:to="loc_por_PensionAndOtherPostretirementBenefitsValuationMethodologyPolicyTextBlock_4A85539EC0793BE45039EADE7D0E0A2B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PensionAndOtherPostretirementPlansPensionsPolicy" xlink:label="loc_us-gaap_PensionAndOtherPostretirementPlansPensionsPolicy_B281E46051AAEB378265EADE7D0EBE24" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_12E0006FEAE0D1529E0EEADE7D0ECE3E" xlink:to="loc_us-gaap_PensionAndOtherPostretirementPlansPensionsPolicy_B281E46051AAEB378265EADE7D0EBE24" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PensionAndOtherPostretirementPlansNonpensionBenefitsPolicy" xlink:label="loc_us-gaap_PensionAndOtherPostretirementPlansNonpensionBenefitsPolicy_CDEE1143B3DD9EAA1B0DEADE7D0E1341" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_12E0006FEAE0D1529E0EEADE7D0ECE3E" xlink:to="loc_us-gaap_PensionAndOtherPostretirementPlansNonpensionBenefitsPolicy_CDEE1143B3DD9EAA1B0DEADE7D0E1341" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_NonQualifiedBenefitPolicyTextBlock" xlink:label="loc_por_NonQualifiedBenefitPolicyTextBlock_41E27473D3B6A68EFAEEEADE7D0E79A9" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_12E0006FEAE0D1529E0EEADE7D0ECE3E" xlink:to="loc_por_NonQualifiedBenefitPolicyTextBlock_41E27473D3B6A68EFAEEEADE7D0E79A9" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/EmployeeBenefitsScheduleOfAllocationOfPlanAssetsDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_EmployeeBenefitsAbstract" xlink:label="loc_por_EmployeeBenefitsAbstract_583CA0F8FA57D67A4282EADE7E304826" xlink:type="locator" />
    <loc xlink:href="por-20151231.xsd#por_ScheduleOfAllocationOfPlanAssetsTable" xlink:label="loc_por_ScheduleOfAllocationOfPlanAssetsTable_E98ED55DDE4C6CA91B31EADE7E30884C" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_583CA0F8FA57D67A4282EADE7E304826" xlink:to="loc_por_ScheduleOfAllocationOfPlanAssetsTable_E98ED55DDE4C6CA91B31EADE7E30884C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:label="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_B436B4128171223290E8EADE7E3087AD" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_ScheduleOfAllocationOfPlanAssetsTable_E98ED55DDE4C6CA91B31EADE7E30884C" xlink:to="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_B436B4128171223290E8EADE7E3087AD" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansDomain" xlink:label="loc_us-gaap_DefinedBenefitPlansDomain_EBA62367B2982198A622EADE7E308A0E" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_B436B4128171223290E8EADE7E3087AD" xlink:to="loc_us-gaap_DefinedBenefitPlansDomain_EBA62367B2982198A622EADE7E308A0E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherPensionPlansDefinedBenefitMember" xlink:label="loc_us-gaap_OtherPensionPlansDefinedBenefitMember_74D4CEA4EB9849E8BAF8EADE7E3065AC" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansDomain_EBA62367B2982198A622EADE7E308A0E" xlink:to="loc_us-gaap_OtherPensionPlansDefinedBenefitMember_74D4CEA4EB9849E8BAF8EADE7E3065AC" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" xlink:label="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_63F241B5115C628F4F16EADE7E3AEDD0" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansDomain_EBA62367B2982198A622EADE7E308A0E" xlink:to="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_63F241B5115C628F4F16EADE7E3AEDD0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefitMember" xlink:label="loc_us-gaap_OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefitMember_951EAA910C349A2754F8EADE7E3ACA51" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansDomain_EBA62367B2982198A622EADE7E308A0E" xlink:to="loc_us-gaap_OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefitMember_951EAA910C349A2754F8EADE7E3ACA51" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis" xlink:label="loc_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis_7695D1FEB41072AFD98CEADE7E3A6B38" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_ScheduleOfAllocationOfPlanAssetsTable_E98ED55DDE4C6CA91B31EADE7E30884C" xlink:to="loc_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis_7695D1FEB41072AFD98CEADE7E3A6B38" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PlanAssetCategoriesDomain" xlink:label="loc_us-gaap_PlanAssetCategoriesDomain_8E0EB22437A67EDB4067EADE7E3AA8A0" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis_7695D1FEB41072AFD98CEADE7E3A6B38" xlink:to="loc_us-gaap_PlanAssetCategoriesDomain_8E0EB22437A67EDB4067EADE7E3AA8A0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquitySecuritiesMember" xlink:label="loc_us-gaap_EquitySecuritiesMember_BA37E0D2821CCE18968CEADE7E3AF623" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanAssetCategoriesDomain_8E0EB22437A67EDB4067EADE7E3AA8A0" xlink:to="loc_us-gaap_EquitySecuritiesMember_BA37E0D2821CCE18968CEADE7E3AF623" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtSecuritiesMember" xlink:label="loc_us-gaap_DebtSecuritiesMember_A7E781452C1B335CB7ECEADE7E3AD2F0" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanAssetCategoriesDomain_8E0EB22437A67EDB4067EADE7E3AA8A0" xlink:to="loc_us-gaap_DebtSecuritiesMember_A7E781452C1B335CB7ECEADE7E3AD2F0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherContractMember" xlink:label="loc_us-gaap_OtherContractMember_A498D7F15FEC69B93D60EADE7E3A08D4" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanAssetCategoriesDomain_8E0EB22437A67EDB4067EADE7E3AA8A0" xlink:to="loc_us-gaap_OtherContractMember_A498D7F15FEC69B93D60EADE7E3A08D4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanDisclosureLineItems" xlink:label="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_27B8D3244265522F63FBEADE7E3A3CB4" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_ScheduleOfAllocationOfPlanAssetsTable_E98ED55DDE4C6CA91B31EADE7E30884C" xlink:to="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_27B8D3244265522F63FBEADE7E3A3CB4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanTargetPlanAssetAllocations" xlink:label="loc_us-gaap_DefinedBenefitPlanTargetPlanAssetAllocations_02B2A9595B66A1021354EADE7E3A9E96" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_27B8D3244265522F63FBEADE7E3A3CB4" xlink:to="loc_us-gaap_DefinedBenefitPlanTargetPlanAssetAllocations_02B2A9595B66A1021354EADE7E3A9E96" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations" xlink:label="loc_us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations_7C246C2FB9CA35196BFAEADE7E3A1F29" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_27B8D3244265522F63FBEADE7E3A3CB4" xlink:to="loc_us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations_7C246C2FB9CA35196BFAEADE7E3A1F29" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/EmployeeBenefitsScheduleOfChangesInFairValueOfPlanAssetsDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_EmployeeBenefitsAbstract" xlink:label="loc_por_EmployeeBenefitsAbstract_C0C344132A90E8B0F54DEADE7E3A9EAB" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_16CE2F03A555532A4E5FEADE7E3AFF7E" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_C0C344132A90E8B0F54DEADE7E3A9EAB" xlink:to="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_16CE2F03A555532A4E5FEADE7E3AFF7E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_9C56869B9D86E321BA1BEADE7E3A40D2" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_16CE2F03A555532A4E5FEADE7E3AFF7E" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_9C56869B9D86E321BA1BEADE7E3A40D2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_B625D7A34158F15AB3DDEADE7E3A8127" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_9C56869B9D86E321BA1BEADE7E3A40D2" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_B625D7A34158F15AB3DDEADE7E3A8127" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_A56CA615712EA3C6CE89EADE7E3A531F" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_16CE2F03A555532A4E5FEADE7E3AFF7E" xlink:to="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_A56CA615712EA3C6CE89EADE7E3A531F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanFairValueOfPlanAssets" xlink:label="loc_us-gaap_DefinedBenefitPlanFairValueOfPlanAssets_BFF4FDB17788DBC6835BEADE7E3A6710" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_A56CA615712EA3C6CE89EADE7E3A531F" xlink:to="loc_us-gaap_DefinedBenefitPlanFairValueOfPlanAssets_BFF4FDB17788DBC6835BEADE7E3A6710" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UnrealizedGainLossOnInvestments" xlink:label="loc_us-gaap_UnrealizedGainLossOnInvestments_3A6F3B8D0C265A1583EBEADE7E3AC683" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_A56CA615712EA3C6CE89EADE7E3A531F" xlink:to="loc_us-gaap_UnrealizedGainLossOnInvestments_3A6F3B8D0C265A1583EBEADE7E3AC683" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet_C0B3B07902B206E41831EADE7E3A14D9" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_A56CA615712EA3C6CE89EADE7E3A531F" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet_C0B3B07902B206E41831EADE7E3A14D9" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_DefinedBenefitPlanPurchasesAndSalesNet" xlink:label="loc_por_DefinedBenefitPlanPurchasesAndSalesNet_BB5DBA7F2CBC3581B121EADE7E3A7260" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_A56CA615712EA3C6CE89EADE7E3A531F" xlink:to="loc_por_DefinedBenefitPlanPurchasesAndSalesNet_BB5DBA7F2CBC3581B121EADE7E3A7260" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/EmployeeBenefitsScheduleOfDefinedBenefitPlanDisclosuresDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_EmployeeBenefitsAbstract" xlink:label="loc_por_EmployeeBenefitsAbstract_B3807D8E3ED776FA6872A9AE0E7A5195" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:label="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_D16011F0325C43A76B4AA9AE0E7ABA6B" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_B3807D8E3ED776FA6872A9AE0E7A5195" xlink:to="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_D16011F0325C43A76B4AA9AE0E7ABA6B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:label="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_C6CB44B72F22A96778F0A9AE0E7AED5F" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_D16011F0325C43A76B4AA9AE0E7ABA6B" xlink:to="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_C6CB44B72F22A96778F0A9AE0E7AED5F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansDomain" xlink:label="loc_us-gaap_DefinedBenefitPlansDomain_F7333A823284ADB7A833A9AE0E7AE3CA" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_C6CB44B72F22A96778F0A9AE0E7AED5F" xlink:to="loc_us-gaap_DefinedBenefitPlansDomain_F7333A823284ADB7A833A9AE0E7AE3CA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PensionPlansDefinedBenefitMember" xlink:label="loc_us-gaap_PensionPlansDefinedBenefitMember_BB342906230AFE25DDC7A9AE0E7A3CD9" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansDomain_F7333A823284ADB7A833A9AE0E7AE3CA" xlink:to="loc_us-gaap_PensionPlansDefinedBenefitMember_BB342906230AFE25DDC7A9AE0E7A3CD9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" xlink:label="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_2EB0BC5B7B7523D5DD63A9AE0E7AF890" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansDomain_F7333A823284ADB7A833A9AE0E7AE3CA" xlink:to="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_2EB0BC5B7B7523D5DD63A9AE0E7AF890" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefitMember" xlink:label="loc_us-gaap_OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefitMember_EAB8F372CAAF7F27E91EA9AE0E7A2F12" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansDomain_F7333A823284ADB7A833A9AE0E7AE3CA" xlink:to="loc_us-gaap_OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefitMember_EAB8F372CAAF7F27E91EA9AE0E7A2F12" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis" xlink:label="loc_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis_6A0C870B440641BF6C0DA9AE0E7AFB4A" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_D16011F0325C43A76B4AA9AE0E7ABA6B" xlink:to="loc_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis_6A0C870B440641BF6C0DA9AE0E7AFB4A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PlanAssetCategoriesDomain" xlink:label="loc_us-gaap_PlanAssetCategoriesDomain_B0D591134AE9BBDBCF39A9AE0E7AD2D5" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis_6A0C870B440641BF6C0DA9AE0E7AFB4A" xlink:to="loc_us-gaap_PlanAssetCategoriesDomain_B0D591134AE9BBDBCF39A9AE0E7AD2D5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_BF4C8CB863C556EA8C66A9AE0E7A9EDE" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_D16011F0325C43A76B4AA9AE0E7ABA6B" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_BF4C8CB863C556EA8C66A9AE0E7A9EDE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_70BF0032EAE258C4A635A9AE0E7AED1B" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_BF4C8CB863C556EA8C66A9AE0E7A9EDE" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_70BF0032EAE258C4A635A9AE0E7AED1B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanDisclosureLineItems" xlink:label="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_D16011F0325C43A76B4AA9AE0E7ABA6B" xlink:to="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_AmountsIncludedInComprehensiveIncomeAbstract" xlink:label="loc_por_AmountsIncludedInComprehensiveIncomeAbstract_473142A9C623CE99DD7CA9AE0E7A31E8" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_por_AmountsIncludedInComprehensiveIncomeAbstract_473142A9C623CE99DD7CA9AE0E7A31E8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract" xlink:label="loc_us-gaap_DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract_97A221B902F9296956F7A9AE0E7AC8F3" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract_97A221B902F9296956F7A9AE0E7AC8F3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanBenefitObligation" xlink:label="loc_us-gaap_DefinedBenefitPlanBenefitObligation_8D042A4D7384A5CE645EA9AE0E7AAB8D" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_DefinedBenefitPlanBenefitObligation_8D042A4D7384A5CE645EA9AE0E7AAB8D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetsFairValueDisclosureAbstract" xlink:label="loc_us-gaap_AssetsFairValueDisclosureAbstract_AC1E5384ADB7A68AA05EA9AE0E7A30E3" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_AssetsFairValueDisclosureAbstract_AC1E5384ADB7A68AA05EA9AE0E7A30E3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanServiceCost" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_C83822C2A69264915247A9AE0E8A8CBE" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_DefinedBenefitPlanServiceCost_C83822C2A69264915247A9AE0E8A8CBE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanInterestCost" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_3C87F9C84BBFCF786A45A9AE0E8A5149" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_3C87F9C84BBFCF786A45A9AE0E8A5149" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanContributionsByPlanParticipants" xlink:label="loc_us-gaap_DefinedBenefitPlanContributionsByPlanParticipants_9050D871AE3FF9E7321CA9AE0E8A41B6" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_DefinedBenefitPlanContributionsByPlanParticipants_9050D871AE3FF9E7321CA9AE0E8A41B6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanActuarialGainLoss" xlink:label="loc_us-gaap_DefinedBenefitPlanActuarialGainLoss_F3303A7B781015AD3AB5A9AE0E8A62EC" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_DefinedBenefitPlanActuarialGainLoss_F3303A7B781015AD3AB5A9AE0E8A62EC" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanSpecialTerminationBenefits" xlink:label="loc_us-gaap_DefinedBenefitPlanSpecialTerminationBenefits_4AB40F456EF19A72E17BA9AE0E8A1460" xlink:type="locator" />
    <presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_DefinedBenefitPlanSpecialTerminationBenefits_4AB40F456EF19A72E17BA9AE0E8A1460" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanBenefitsPaid" xlink:label="loc_us-gaap_DefinedBenefitPlanBenefitsPaid_C4815EC73C74F0C55435A9AE0E8A8209" xlink:type="locator" />
    <presentationArc order="10" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_DefinedBenefitPlanBenefitsPaid_C4815EC73C74F0C55435A9AE0E8A8209" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAdministrationExpenses" xlink:label="loc_us-gaap_DefinedBenefitPlanAdministrationExpenses_49ACBBB1B93641369833A9AE0E8A91E5" xlink:type="locator" />
    <presentationArc order="11" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_DefinedBenefitPlanAdministrationExpenses_49ACBBB1B93641369833A9AE0E8A91E5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanFairValueOfPlanAssets" xlink:label="loc_us-gaap_DefinedBenefitPlanFairValueOfPlanAssets_9DCC07E2C33A554ED42CA9AE0E8A8CBE" xlink:type="locator" />
    <presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_DefinedBenefitPlanFairValueOfPlanAssets_9DCC07E2C33A554ED42CA9AE0E8A8CBE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAggregateBenefitObligation" xlink:label="loc_us-gaap_DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAggregateBenefitObligation_FE76E75C80E5188286F4A9AE0E8A4B9D" xlink:type="locator" />
    <presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAggregateBenefitObligation_FE76E75C80E5188286F4A9AE0E8A4B9D" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_NetActuarialLossGainIncludedInComprehensiveIncome" xlink:label="loc_por_NetActuarialLossGainIncludedInComprehensiveIncome_BF6FBA70200441581AE9A9AE0E8AA986" xlink:type="locator" />
    <presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_por_NetActuarialLossGainIncludedInComprehensiveIncome_BF6FBA70200441581AE9A9AE0E8AA986" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_423B88E5455F02CC75C9A9AE0E8AA6C3" xlink:type="locator" />
    <presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_423B88E5455F02CC75C9A9AE0E8AA6C3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_3EF6360EB344CC91B625A9AE0E8A94F2" xlink:type="locator" />
    <presentationArc order="16" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_3EF6360EB344CC91B625A9AE0E8A94F2" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_TotalAmountsIncludedInComprehensiveIncome" xlink:label="loc_por_TotalAmountsIncludedInComprehensiveIncome_5F0C7B601045433EDA3DA9AE0E8ACB98" xlink:type="locator" />
    <presentationArc order="17" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_por_TotalAmountsIncludedInComprehensiveIncome_5F0C7B601045433EDA3DA9AE0E8ACB98" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAccumulatedBenefitObligation" xlink:label="loc_us-gaap_DefinedBenefitPlanAccumulatedBenefitObligation_DEAD478DCE4ACBDF9BBBA9AE0E8A665E" xlink:type="locator" />
    <presentationArc order="18" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_DefinedBenefitPlanAccumulatedBenefitObligation_DEAD478DCE4ACBDF9BBBA9AE0E8A665E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets" xlink:label="loc_us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets_AFC5C37E292ECD6BDBA0A9AE0E8A4C6A" xlink:type="locator" />
    <presentationArc order="19" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets_AFC5C37E292ECD6BDBA0A9AE0E8A4C6A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanContributionsByEmployer" xlink:label="loc_us-gaap_DefinedBenefitPlanContributionsByEmployer_E83D4D3B1A6724D08802A9AE0E8AF97E" xlink:type="locator" />
    <presentationArc order="20" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_DefinedBenefitPlanContributionsByEmployer_E83D4D3B1A6724D08802A9AE0E8AF97E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAmountsRecognizedInBalanceSheetAbstract" xlink:label="loc_us-gaap_DefinedBenefitPlanAmountsRecognizedInBalanceSheetAbstract_E3157F7186E0C7315BB7A9AE0E8AE45F" xlink:type="locator" />
    <presentationArc order="21" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_DefinedBenefitPlanAmountsRecognizedInBalanceSheetAbstract_E3157F7186E0C7315BB7A9AE0E8AE45F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetsHeldInTrustNoncurrent" xlink:label="loc_us-gaap_AssetsHeldInTrustNoncurrent_E47D40A0D9CE65FD95B3A9AE0E8A4821" xlink:type="locator" />
    <presentationArc order="22" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_AssetsHeldInTrustNoncurrent_E47D40A0D9CE65FD95B3A9AE0E8A4821" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities" xlink:label="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities_8F4C09D705A2276D81B6A9AE0E8ABB57" xlink:type="locator" />
    <presentationArc order="23" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities_8F4C09D705A2276D81B6A9AE0E8ABB57" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent" xlink:label="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_B2CE597F7442E347E0B8A9AE0E8A1AAD" xlink:type="locator" />
    <presentationArc order="24" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_B2CE597F7442E347E0B8A9AE0E8A1AAD" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeNetGainLossBeforeTaxAbstract" xlink:label="loc_us-gaap_DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeNetGainLossBeforeTaxAbstract_9DF22BED83BB49D17E38A9AE0E8AC472" xlink:type="locator" />
    <presentationArc order="25" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeNetGainLossBeforeTaxAbstract_9DF22BED83BB49D17E38A9AE0E8AC472" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_NetActuarialLoss" xlink:label="loc_por_NetActuarialLoss_308A8A84B07C9C9027C2A9AE0E8A1751" xlink:type="locator" />
    <presentationArc order="26" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_por_NetActuarialLoss_308A8A84B07C9C9027C2A9AE0E8A1751" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax" xlink:label="loc_us-gaap_DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax_AFEC6A759E6760AC3B51A9AE0E8A8639" xlink:type="locator" />
    <presentationArc order="27" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax_AFEC6A759E6760AC3B51A9AE0E8A8639" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_4B45F796C2C0587693FEA9AE0E8A1748" xlink:type="locator" />
    <presentationArc order="28" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_4B45F796C2C0587693FEA9AE0E8A1748" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAssumptionsUsedInCalculationsAbstract" xlink:label="loc_us-gaap_DefinedBenefitPlanAssumptionsUsedInCalculationsAbstract_7217BF68C54F186FFD2FA9AE0E8A3E35" xlink:type="locator" />
    <presentationArc order="29" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_DefinedBenefitPlanAssumptionsUsedInCalculationsAbstract_7217BF68C54F186FFD2FA9AE0E8A3E35" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitObligationDiscountRate" xlink:label="loc_por_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitObligationDiscountRate_03474800F2B6115DE143A9AE0E8A0ED3" xlink:type="locator" />
    <presentationArc order="30" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_por_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitObligationDiscountRate_03474800F2B6115DE143A9AE0E8A0ED3" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_DefinedBenefitPlanDiscountRateUpperRange" xlink:label="loc_por_DefinedBenefitPlanDiscountRateUpperRange_8DA680EB5A7724A0FE0AA9AE0E8A7F81" xlink:type="locator" />
    <presentationArc order="31" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_por_DefinedBenefitPlanDiscountRateUpperRange_8DA680EB5A7724A0FE0AA9AE0E8A7F81" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate" xlink:label="loc_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate_9E724E7DE07E7414398BA9AE0E8A02CD" xlink:type="locator" />
    <presentationArc order="32" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate_9E724E7DE07E7414398BA9AE0E8A02CD" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_DefinedBenefitPlanCostDiscountRateUpperRange" xlink:label="loc_por_DefinedBenefitPlanCostDiscountRateUpperRange_5C0C926E606AD8F64B43A9AE0E8AE57C" xlink:type="locator" />
    <presentationArc order="33" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_por_DefinedBenefitPlanCostDiscountRateUpperRange_5C0C926E606AD8F64B43A9AE0E8AE57C" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitObligationRateOfCompensationIncrease" xlink:label="loc_por_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitObligationRateOfCompensationIncrease_EEA5391C45EB4A46DFFCA9AE0E8A8ADA" xlink:type="locator" />
    <presentationArc order="34" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_por_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitObligationRateOfCompensationIncrease_EEA5391C45EB4A46DFFCA9AE0E8A8ADA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease" xlink:label="loc_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease_715EAB5169BFFE2EACDDA9AE0E8A2608" xlink:type="locator" />
    <presentationArc order="35" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease_715EAB5169BFFE2EACDDA9AE0E8A2608" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_LongTermRateOfReturnOnPlanAssets" xlink:label="loc_por_LongTermRateOfReturnOnPlanAssets_E8BD91AE9788E3710E24A9AE0E8A5934" xlink:type="locator" />
    <presentationArc order="36" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_por_LongTermRateOfReturnOnPlanAssets_E8BD91AE9788E3710E24A9AE0E8A5934" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets" xlink:label="loc_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets_82C30D2296B951F48DF4A9AE0E8A56E5" xlink:type="locator" />
    <presentationArc order="37" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_31557F0AE15AF7FADAF0A9AE0E7A2575" xlink:to="loc_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets_82C30D2296B951F48DF4A9AE0E8A56E5" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/EmployeeBenefitsScheduleOfExpectedBenefitPaymentsDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_EmployeeBenefitsAbstract" xlink:label="loc_por_EmployeeBenefitsAbstract_A62A7F999B1DFDE8E51AEADE7D68584F" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:label="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_1A382B1C95A89BE26930EADE7D688309" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_A62A7F999B1DFDE8E51AEADE7D68584F" xlink:to="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_1A382B1C95A89BE26930EADE7D688309" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:label="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_44997915B39D62F78F6AEADE7DC214F1" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_1A382B1C95A89BE26930EADE7D688309" xlink:to="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_44997915B39D62F78F6AEADE7DC214F1" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansDomain" xlink:label="loc_us-gaap_DefinedBenefitPlansDomain_6C9BEE79978740FEAE61EADE7DC22B4F" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_44997915B39D62F78F6AEADE7DC214F1" xlink:to="loc_us-gaap_DefinedBenefitPlansDomain_6C9BEE79978740FEAE61EADE7DC22B4F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PensionPlansDefinedBenefitMember" xlink:label="loc_us-gaap_PensionPlansDefinedBenefitMember_C49F23207B5C624529DAEADE7DC2CA78" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansDomain_6C9BEE79978740FEAE61EADE7DC22B4F" xlink:to="loc_us-gaap_PensionPlansDefinedBenefitMember_C49F23207B5C624529DAEADE7DC2CA78" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" xlink:label="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_450DE979B5B92050249FEADE7DC2C4AA" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansDomain_6C9BEE79978740FEAE61EADE7DC22B4F" xlink:to="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_450DE979B5B92050249FEADE7DC2C4AA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefitMember" xlink:label="loc_us-gaap_OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefitMember_B238CE2F80E534A8C44BEADE7DC2E807" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansDomain_6C9BEE79978740FEAE61EADE7DC22B4F" xlink:to="loc_us-gaap_OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefitMember_B238CE2F80E534A8C44BEADE7DC2E807" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis" xlink:label="loc_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis_017579BCDC695596FFD0EADE7DC20202" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_1A382B1C95A89BE26930EADE7D688309" xlink:to="loc_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis_017579BCDC695596FFD0EADE7DC20202" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PlanAssetCategoriesDomain" xlink:label="loc_us-gaap_PlanAssetCategoriesDomain_CBA80890A559898F2CBFEADE7DC222D2" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis_017579BCDC695596FFD0EADE7DC20202" xlink:to="loc_us-gaap_PlanAssetCategoriesDomain_CBA80890A559898F2CBFEADE7DC222D2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_C97295F2EF3BF90C453EEADE7DC29BD9" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_1A382B1C95A89BE26930EADE7D688309" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_C97295F2EF3BF90C453EEADE7DC29BD9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_641757CA36F87C198097EADE7DC22752" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_C97295F2EF3BF90C453EEADE7DC29BD9" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_641757CA36F87C198097EADE7DC22752" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanDisclosureLineItems" xlink:label="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_3F26287B593B8BCD1F56EADE7DC20C2B" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_1A382B1C95A89BE26930EADE7D688309" xlink:to="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_3F26287B593B8BCD1F56EADE7DC20C2B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths_D2FF0EE81526BC85EDD0EADE7DC2CFEE" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_3F26287B593B8BCD1F56EADE7DC20C2B" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths_D2FF0EE81526BC85EDD0EADE7DC2CFEE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo_6C86B57C67F98F825D10EADE7DC2BB1C" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_3F26287B593B8BCD1F56EADE7DC20C2B" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo_6C86B57C67F98F825D10EADE7DC2BB1C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree_0FB29462624F76A2F35EEADE7DC2E5C0" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_3F26287B593B8BCD1F56EADE7DC20C2B" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree_0FB29462624F76A2F35EEADE7DC2E5C0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour_52732F71965EDB301598EADE7DC2515B" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_3F26287B593B8BCD1F56EADE7DC20C2B" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour_52732F71965EDB301598EADE7DC2515B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive_8F8F5514D153C46A355BEADE7DC27499" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_3F26287B593B8BCD1F56EADE7DC20C2B" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive_8F8F5514D153C46A355BEADE7DC27499" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter_1669D384312BFFB18E0FEADE7DC244C8" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_3F26287B593B8BCD1F56EADE7DC20C2B" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter_1669D384312BFFB18E0FEADE7DC244C8" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/EmployeeBenefitsScheduleOfFairValueAssetsDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_EmployeeBenefitsAbstract" xlink:label="loc_por_EmployeeBenefitsAbstract_0F8F7CC59D5387F4B6DFA9AE054733AF" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:label="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_CB1867A098F04257FF14A9AE05478E05" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_0F8F7CC59D5387F4B6DFA9AE054733AF" xlink:to="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_CB1867A098F04257FF14A9AE05478E05" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_64D37AA29BEB703D8121A9AE0547B822" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_CB1867A098F04257FF14A9AE05478E05" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_64D37AA29BEB703D8121A9AE0547B822" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_4559F4C0888421805C56A9AE054705CC" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_64D37AA29BEB703D8121A9AE0547B822" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_4559F4C0888421805C56A9AE054705CC" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_D8907C8459894AE6615FA9AE0547EB03" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_4559F4C0888421805C56A9AE054705CC" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_D8907C8459894AE6615FA9AE0547EB03" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_55F157DEB6B20758DC56A9AE05472994" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_4559F4C0888421805C56A9AE054705CC" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_55F157DEB6B20758DC56A9AE05472994" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_DCB1E7F878B6434C47BCA9AE054713AA" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_4559F4C0888421805C56A9AE054705CC" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_DCB1E7F878B6434C47BCA9AE054713AA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis" xlink:label="loc_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis_9C095A1D655DFF12C005A9AE05470073" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_CB1867A098F04257FF14A9AE05478E05" xlink:to="loc_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis_9C095A1D655DFF12C005A9AE05470073" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PlanAssetCategoriesDomain" xlink:label="loc_us-gaap_PlanAssetCategoriesDomain_104E878F25DF76F0AD1EA9AE05472011" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis_9C095A1D655DFF12C005A9AE05470073" xlink:to="loc_us-gaap_PlanAssetCategoriesDomain_104E878F25DF76F0AD1EA9AE05472011" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanDisclosureLineItems" xlink:label="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_74B294B7361EBF7C3A43A9AE0547AF3B" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_CB1867A098F04257FF14A9AE05478E05" xlink:to="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_74B294B7361EBF7C3A43A9AE0547AF3B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanFundedStatusOfPlanAbstract" xlink:label="loc_us-gaap_DefinedBenefitPlanFundedStatusOfPlanAbstract_26BC72A1191034688A24A9AE0547ED46" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_74B294B7361EBF7C3A43A9AE0547AF3B" xlink:to="loc_us-gaap_DefinedBenefitPlanFundedStatusOfPlanAbstract_26BC72A1191034688A24A9AE0547ED46" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_MoneyMarketFundsDefinedBenefitPensionPlanAssets" xlink:label="loc_por_MoneyMarketFundsDefinedBenefitPensionPlanAssets_EEF8E1C4C07B32CCA185A9AE05470765" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanFundedStatusOfPlanAbstract_26BC72A1191034688A24A9AE0547ED46" xlink:to="loc_por_MoneyMarketFundsDefinedBenefitPensionPlanAssets_EEF8E1C4C07B32CCA185A9AE05470765" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_EquitySecuritiesAbstract" xlink:label="loc_por_EquitySecuritiesAbstract_1154540E12EB3238DF2BA9AE05566DCC" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanFundedStatusOfPlanAbstract_26BC72A1191034688A24A9AE0547ED46" xlink:to="loc_por_EquitySecuritiesAbstract_1154540E12EB3238DF2BA9AE05566DCC" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_DomesticEquitySecuritiesDefinedBenefitPensionPlanAssets" xlink:label="loc_por_DomesticEquitySecuritiesDefinedBenefitPensionPlanAssets_EFD534E6175C65C1C72BA9AE055676ED" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EquitySecuritiesAbstract_1154540E12EB3238DF2BA9AE05566DCC" xlink:to="loc_por_DomesticEquitySecuritiesDefinedBenefitPensionPlanAssets_EFD534E6175C65C1C72BA9AE055676ED" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_InternationalEquitySecuritiesDefinedBenefitPensionPlanAssets" xlink:label="loc_por_InternationalEquitySecuritiesDefinedBenefitPensionPlanAssets_88B0144BDCB05A8100CDA9AE0556C8AC" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EquitySecuritiesAbstract_1154540E12EB3238DF2BA9AE05566DCC" xlink:to="loc_por_InternationalEquitySecuritiesDefinedBenefitPensionPlanAssets_88B0144BDCB05A8100CDA9AE0556C8AC" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_DebtSecuritiesAbstract" xlink:label="loc_por_DebtSecuritiesAbstract_19D9AADD5460A7E0BA99A9AE0556CDB9" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanFundedStatusOfPlanAbstract_26BC72A1191034688A24A9AE0547ED46" xlink:to="loc_por_DebtSecuritiesAbstract_19D9AADD5460A7E0BA99A9AE0556CDB9" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_DomesticGovernmentAndCorporateCreditDefinedBenefitPensionPlanAssets" xlink:label="loc_por_DomesticGovernmentAndCorporateCreditDefinedBenefitPensionPlanAssets_0BE9D819B63DF1E129E1A9AE0556357A" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_DebtSecuritiesAbstract_19D9AADD5460A7E0BA99A9AE0556CDB9" xlink:to="loc_por_DomesticGovernmentAndCorporateCreditDefinedBenefitPensionPlanAssets_0BE9D819B63DF1E129E1A9AE0556357A" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_PrivateEquityFunds" xlink:label="loc_por_PrivateEquityFunds_670DFB31206341AA12B1A9AE05562C4E" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanFundedStatusOfPlanAbstract_26BC72A1191034688A24A9AE0547ED46" xlink:to="loc_por_PrivateEquityFunds_670DFB31206341AA12B1A9AE05562C4E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanFairValueOfPlanAssets" xlink:label="loc_us-gaap_DefinedBenefitPlanFairValueOfPlanAssets_39BD76700043C4E8E5E5A9AE05565F87" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanFundedStatusOfPlanAbstract_26BC72A1191034688A24A9AE0547ED46" xlink:to="loc_us-gaap_DefinedBenefitPlanFairValueOfPlanAssets_39BD76700043C4E8E5E5A9AE05565F87" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_OtherPostretirementBenefitPlansAssetsAbstract" xlink:label="loc_por_OtherPostretirementBenefitPlansAssetsAbstract_AB2B1754A935666193C6A9AE055685DD" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanFundedStatusOfPlanAbstract_26BC72A1191034688A24A9AE0547ED46" xlink:to="loc_por_OtherPostretirementBenefitPlansAssetsAbstract_AB2B1754A935666193C6A9AE055685DD" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_FairValueOfMoneyMarketFundsOtherPostRetirementBenefitPlanAssetsAtFairValue" xlink:label="loc_por_FairValueOfMoneyMarketFundsOtherPostRetirementBenefitPlanAssetsAtFairValue_28CB9ED9188D7A68FA5DA9AE0556AFF4" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_OtherPostretirementBenefitPlansAssetsAbstract_AB2B1754A935666193C6A9AE055685DD" xlink:to="loc_por_FairValueOfMoneyMarketFundsOtherPostRetirementBenefitPlanAssetsAtFairValue_28CB9ED9188D7A68FA5DA9AE0556AFF4" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_DomesticEquitySecuritiesOtherPostretirementBenefitPlanAssetsAtFairValue" xlink:label="loc_por_DomesticEquitySecuritiesOtherPostretirementBenefitPlanAssetsAtFairValue_72657F6E86FA4E716104A9AE0556372C" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_OtherPostretirementBenefitPlansAssetsAbstract_AB2B1754A935666193C6A9AE055685DD" xlink:to="loc_por_DomesticEquitySecuritiesOtherPostretirementBenefitPlanAssetsAtFairValue_72657F6E86FA4E716104A9AE0556372C" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_InternationalEquitySecuritiesOtherPostRetirementAssetsAtFairValue" xlink:label="loc_por_InternationalEquitySecuritiesOtherPostRetirementAssetsAtFairValue_91459A344A5E01850B13A9AE0556BE3D" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_OtherPostretirementBenefitPlansAssetsAbstract_AB2B1754A935666193C6A9AE055685DD" xlink:to="loc_por_InternationalEquitySecuritiesOtherPostRetirementAssetsAtFairValue_91459A344A5E01850B13A9AE0556BE3D" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_DebtSecuritiesDomesticGovernmentOtherPostretirementBenefitPlanAssets" xlink:label="loc_por_DebtSecuritiesDomesticGovernmentOtherPostretirementBenefitPlanAssets_2C32F72A9982F0FC5D44A9AE05564AB4" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_OtherPostretirementBenefitPlansAssetsAbstract_AB2B1754A935666193C6A9AE055685DD" xlink:to="loc_por_DebtSecuritiesDomesticGovernmentOtherPostretirementBenefitPlanAssets_2C32F72A9982F0FC5D44A9AE05564AB4" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_OtherPostRetirementBenefitPlanAssetsTotal" xlink:label="loc_por_OtherPostRetirementBenefitPlanAssetsTotal_6D3E00C4F72921D9972CA9AE055619A5" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_OtherPostretirementBenefitPlansAssetsAbstract_AB2B1754A935666193C6A9AE055685DD" xlink:to="loc_por_OtherPostRetirementBenefitPlanAssetsTotal_6D3E00C4F72921D9972CA9AE055619A5" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/EmployeeBenefitsScheduleOfNetBenefitCostsDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_EmployeeBenefitsAbstract" xlink:label="loc_por_EmployeeBenefitsAbstract_DF27B8ECF9471D53D40CEADE7EBC0BD3" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:label="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_D78FA64FA559A40A4BC5EADE7EBCBD41" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_DF27B8ECF9471D53D40CEADE7EBC0BD3" xlink:to="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_D78FA64FA559A40A4BC5EADE7EBCBD41" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:label="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_CBE6C6B57633C86F2EF1EADE7EBCF240" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_D78FA64FA559A40A4BC5EADE7EBCBD41" xlink:to="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_CBE6C6B57633C86F2EF1EADE7EBCF240" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansDomain" xlink:label="loc_us-gaap_DefinedBenefitPlansDomain_33520D7AC7E0D028A7EBEADE7EBCBEA3" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_CBE6C6B57633C86F2EF1EADE7EBCF240" xlink:to="loc_us-gaap_DefinedBenefitPlansDomain_33520D7AC7E0D028A7EBEADE7EBCBEA3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" xlink:label="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_F771505D8D8090216449EADE7EBC5F44" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansDomain_33520D7AC7E0D028A7EBEADE7EBCBEA3" xlink:to="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_F771505D8D8090216449EADE7EBC5F44" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PensionPlansDefinedBenefitMember" xlink:label="loc_us-gaap_PensionPlansDefinedBenefitMember_00AADA42804DFA8793C5EADE7EBC4C3A" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansDomain_33520D7AC7E0D028A7EBEADE7EBCBEA3" xlink:to="loc_us-gaap_PensionPlansDefinedBenefitMember_00AADA42804DFA8793C5EADE7EBC4C3A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefitMember" xlink:label="loc_us-gaap_OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefitMember_C336A8BA8F4145A271FCEADE7EBCBB09" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansDomain_33520D7AC7E0D028A7EBEADE7EBCBEA3" xlink:to="loc_us-gaap_OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefitMember_C336A8BA8F4145A271FCEADE7EBCBB09" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis" xlink:label="loc_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis_E1BA16117EB9C0CD280DEADE7EBC647D" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_D78FA64FA559A40A4BC5EADE7EBCBD41" xlink:to="loc_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis_E1BA16117EB9C0CD280DEADE7EBC647D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PlanAssetCategoriesDomain" xlink:label="loc_us-gaap_PlanAssetCategoriesDomain_B832660356A513A3B7F6EADE7EBCACD9" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis_E1BA16117EB9C0CD280DEADE7EBC647D" xlink:to="loc_us-gaap_PlanAssetCategoriesDomain_B832660356A513A3B7F6EADE7EBCACD9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_DC70ADE696557E209CE1EADE7EBC0CBF" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_D78FA64FA559A40A4BC5EADE7EBCBD41" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_DC70ADE696557E209CE1EADE7EBC0CBF" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_E4B8420BDAEA8825B865EADE7EBC53F6" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_DC70ADE696557E209CE1EADE7EBC0CBF" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_E4B8420BDAEA8825B865EADE7EBC53F6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanDisclosureLineItems" xlink:label="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_76F2788092F5494E420CEADE7EBCE1E5" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_D78FA64FA559A40A4BC5EADE7EBCBD41" xlink:to="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_76F2788092F5494E420CEADE7EBCE1E5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanServiceCost" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_A66AF1A0AD94ECCDC872EADE7EBCE0B0" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_76F2788092F5494E420CEADE7EBCE1E5" xlink:to="loc_us-gaap_DefinedBenefitPlanServiceCost_A66AF1A0AD94ECCDC872EADE7EBCE0B0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanInterestCost" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_E34A10FC1A8833DC2E81EADE7EBC1036" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_76F2788092F5494E420CEADE7EBCE1E5" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_E34A10FC1A8833DC2E81EADE7EBC1036" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_4C698AAAFB504EC2AFC1EADE7EBCF801" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_76F2788092F5494E420CEADE7EBCE1E5" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_4C698AAAFB504EC2AFC1EADE7EBCF801" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_8E8EA93E15942C12FE12EADE7EBC2014" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_76F2788092F5494E420CEADE7EBCE1E5" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_8E8EA93E15942C12FE12EADE7EBC2014" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_46C752007F2247127A6FEADE7EBCF568" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_76F2788092F5494E420CEADE7EBCE1E5" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_46C752007F2247127A6FEADE7EBCF568" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_3BB0D988974F550F599DEADE7EBC26BD" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_76F2788092F5494E420CEADE7EBCE1E5" xlink:to="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_3BB0D988974F550F599DEADE7EBC26BD" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/EmployeeBenefitsTables" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_EmployeeBenefitsAbstract" xlink:label="loc_por_EmployeeBenefitsAbstract_4908EDB46B3BA9897340C2B5DC58DAF7" xlink:type="locator" />
    <loc xlink:href="por-20151231.xsd#por_AssetsAndLiabilitiesAssociatedWithNonQualifiedBenefitPlansTableTextBlock" xlink:label="loc_por_AssetsAndLiabilitiesAssociatedWithNonQualifiedBenefitPlansTableTextBlock_7787633554AAD2FEA3DCC2B5DC683677" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_4908EDB46B3BA9897340C2B5DC58DAF7" xlink:to="loc_por_AssetsAndLiabilitiesAssociatedWithNonQualifiedBenefitPlansTableTextBlock_7787633554AAD2FEA3DCC2B5DC683677" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfAllocationOfPlanAssetsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfAllocationOfPlanAssetsTableTextBlock_7B3EA764C484DC5A2D86C2B5DC68BF41" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_4908EDB46B3BA9897340C2B5DC58DAF7" xlink:to="loc_us-gaap_ScheduleOfAllocationOfPlanAssetsTableTextBlock_7B3EA764C484DC5A2D86C2B5DC68BF41" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_FB7FA7892F944281921DC323DED852A7" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_4908EDB46B3BA9897340C2B5DC58DAF7" xlink:to="loc_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_FB7FA7892F944281921DC323DED852A7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfChangesInFairValueOfPlanAssetsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfChangesInFairValueOfPlanAssetsTableTextBlock_F692A4414779B779F1D9C2B5DC684D3E" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_4908EDB46B3BA9897340C2B5DC58DAF7" xlink:to="loc_us-gaap_ScheduleOfChangesInFairValueOfPlanAssetsTableTextBlock_F692A4414779B779F1D9C2B5DC684D3E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTextBlock" xlink:label="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTextBlock_BD86DE42ABF8DFF0383CC2B5DC683DB8" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_4908EDB46B3BA9897340C2B5DC58DAF7" xlink:to="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTextBlock_BD86DE42ABF8DFF0383CC2B5DC683DB8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfNetBenefitCostsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock_2B658C81E24943A2237CC2B5DC68D881" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_4908EDB46B3BA9897340C2B5DC58DAF7" xlink:to="loc_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock_2B658C81E24943A2237CC2B5DC68D881" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfExpectedBenefitPaymentsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfExpectedBenefitPaymentsTableTextBlock_46D135073613EED27013C2B5DC68C8F8" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EmployeeBenefitsAbstract_4908EDB46B3BA9897340C2B5DC58DAF7" xlink:to="loc_us-gaap_ScheduleOfExpectedBenefitPaymentsTableTextBlock_46D135073613EED27013C2B5DC68C8F8" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/EquityBasedPlans" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_EquityBasedPlansAbstract" xlink:label="loc_por_EquityBasedPlansAbstract_8409B48CDCD9775FD413B7A5D511E1F0" xlink:type="locator" />
    <loc xlink:href="por-20151231.xsd#por_StockPurchasePlanTextBlock" xlink:label="loc_por_StockPurchasePlanTextBlock_34573504D46EB5691B59B7A25375561F" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EquityBasedPlansAbstract_8409B48CDCD9775FD413B7A5D511E1F0" xlink:to="loc_por_StockPurchasePlanTextBlock_34573504D46EB5691B59B7A25375561F" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/EquityBasedPlansDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_EquityBasedPlansAbstract" xlink:label="loc_por_EquityBasedPlansAbstract_9E6B5FDD7D7C20CCF9FFB7A2576B77E2" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_7A794795D757A7222B9FB7A2576B053F" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EquityBasedPlansAbstract_9E6B5FDD7D7C20CCF9FFB7A2576B77E2" xlink:to="loc_us-gaap_StatementTable_7A794795D757A7222B9FB7A2576B053F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_73EBDBBD346E446259C9B7A2576B73C5" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_7A794795D757A7222B9FB7A2576B053F" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_73EBDBBD346E446259C9B7A2576B73C5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_2EC748A054C408D294B7B7A2576BAA36" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_73EBDBBD346E446259C9B7A2576B73C5" xlink:to="loc_us-gaap_EquityComponentDomain_2EC748A054C408D294B7B7A2576BAA36" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_6858D35F9BFC282FAFE4B7A2576B7F13" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_2EC748A054C408D294B7B7A2576BAA36" xlink:to="loc_us-gaap_CommonStockMember_6858D35F9BFC282FAFE4B7A2576B7F13" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_28FE578B174E159D4420B7A2576BCF9A" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_7A794795D757A7222B9FB7A2576B053F" xlink:to="loc_us-gaap_StatementLineItems_28FE578B174E159D4420B7A2576BCF9A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_B53A02982A125D4BA853B7A2576B05A8" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_28FE578B174E159D4420B7A2576BCF9A" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_B53A02982A125D4BA853B7A2576B05A8" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_Stockoffering" xlink:label="loc_por_Stockoffering_41623EFFA68E3101E508B7A2576B1E9A" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EquityBasedPlansAbstract_9E6B5FDD7D7C20CCF9FFB7A2576B77E2" xlink:to="loc_por_Stockoffering_41623EFFA68E3101E508B7A2576B1E9A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_EA80F83282DAD3E27A72B7A2576B167E" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EquityBasedPlansAbstract_9E6B5FDD7D7C20CCF9FFB7A2576B77E2" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_EA80F83282DAD3E27A72B7A2576B167E" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_EmployeeStockPurchasePlanSharesAuthorized" xlink:label="loc_por_EmployeeStockPurchasePlanSharesAuthorized_DEE66999DAC573AF085FB7A2576B3712" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EquityBasedPlansAbstract_9E6B5FDD7D7C20CCF9FFB7A2576B77E2" xlink:to="loc_por_EmployeeStockPurchasePlanSharesAuthorized_DEE66999DAC573AF085FB7A2576B3712" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_EmployeeStockPurchasePlanBasePayThreshold" xlink:label="loc_por_EmployeeStockPurchasePlanBasePayThreshold_A01F644B59F442571986B7A2576B1E89" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EquityBasedPlansAbstract_9E6B5FDD7D7C20CCF9FFB7A2576B77E2" xlink:to="loc_por_EmployeeStockPurchasePlanBasePayThreshold_A01F644B59F442571986B7A2576B1E89" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_EmployeeStockPurchasePlanPurchasedStockValueLimitation" xlink:label="loc_por_EmployeeStockPurchasePlanPurchasedStockValueLimitation_95A9323940C2DC5AACEEB7A2576B5440" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EquityBasedPlansAbstract_9E6B5FDD7D7C20CCF9FFB7A2576B77E2" xlink:to="loc_por_EmployeeStockPurchasePlanPurchasedStockValueLimitation_95A9323940C2DC5AACEEB7A2576B5440" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_EmployeeStockPurchasePlanSharePurchaseLimitation" xlink:label="loc_por_EmployeeStockPurchasePlanSharePurchaseLimitation_CCEDE240BA836B3BBB5AB7A2576BE49C" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EquityBasedPlansAbstract_9E6B5FDD7D7C20CCF9FFB7A2576B77E2" xlink:to="loc_por_EmployeeStockPurchasePlanSharePurchaseLimitation_CCEDE240BA836B3BBB5AB7A2576BE49C" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_EmployeeStockPurchasePlanPurchasePrice" xlink:label="loc_por_EmployeeStockPurchasePlanPurchasePrice_11286BD757B813787392B7A2576BFB50" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EquityBasedPlansAbstract_9E6B5FDD7D7C20CCF9FFB7A2576B77E2" xlink:to="loc_por_EmployeeStockPurchasePlanPurchasePrice_11286BD757B813787392B7A2576BFB50" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_EmployeeStockPurchasePlanNumberOfAvailableShares" xlink:label="loc_por_EmployeeStockPurchasePlanNumberOfAvailableShares_0E9ED31A6D3E4E0F790DB7A2576B7593" xlink:type="locator" />
    <presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EquityBasedPlansAbstract_9E6B5FDD7D7C20CCF9FFB7A2576B77E2" xlink:to="loc_por_EmployeeStockPurchasePlanNumberOfAvailableShares_0E9ED31A6D3E4E0F790DB7A2576B7593" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_DividendReinvestmentAndDirectStockPurchasePlanShares" xlink:label="loc_por_DividendReinvestmentAndDirectStockPurchasePlanShares_74D90D61033D6128A3D3B7A2576B508F" xlink:type="locator" />
    <presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EquityBasedPlansAbstract_9E6B5FDD7D7C20CCF9FFB7A2576B77E2" xlink:to="loc_por_DividendReinvestmentAndDirectStockPurchasePlanShares_74D90D61033D6128A3D3B7A2576B508F" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_DividendReinvestmentAndDirectStockPurchasePlanNumberOfAvailableShares" xlink:label="loc_por_DividendReinvestmentAndDirectStockPurchasePlanNumberOfAvailableShares_D97BA716C1B384899EE2B7A2576BA817" xlink:type="locator" />
    <presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_EquityBasedPlansAbstract_9E6B5FDD7D7C20CCF9FFB7A2576B77E2" xlink:to="loc_por_DividendReinvestmentAndDirectStockPurchasePlanNumberOfAvailableShares_D97BA716C1B384899EE2B7A2576BA817" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/FairValueOfFinancialInstruments" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_FairValueOfFinancialInstrumentsNoteAbstract" xlink:label="loc_por_FairValueOfFinancialInstrumentsNoteAbstract_8C43E465F4091B37C7AFEADE7EB28C47" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueDisclosuresTextBlock" xlink:label="loc_us-gaap_FairValueDisclosuresTextBlock_58A9C4B0FE47A3766B05EADE7EB2F50E" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_FairValueOfFinancialInstrumentsNoteAbstract_8C43E465F4091B37C7AFEADE7EB28C47" xlink:to="loc_us-gaap_FairValueDisclosuresTextBlock_58A9C4B0FE47A3766B05EADE7EB2F50E" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/FairValueOfFinancialInstrumentsDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_FairValueOfFinancialInstrumentsAbstract" xlink:label="loc_por_FairValueOfFinancialInstrumentsAbstract_CB9CFCCF54270B535226C795874C1924" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueByBalanceSheetGroupingTable" xlink:label="loc_us-gaap_FairValueByBalanceSheetGroupingTable_1E4929C2B7784E5066D3C795874C5078" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_FairValueOfFinancialInstrumentsAbstract_CB9CFCCF54270B535226C795874C1924" xlink:to="loc_us-gaap_FairValueByBalanceSheetGroupingTable_1E4929C2B7784E5066D3C795874C5078" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_E19A46DCCA37A548FD54C795874C6BAA" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_1E4929C2B7784E5066D3C795874C5078" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_E19A46DCCA37A548FD54C795874C6BAA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_24529E93B8A802B8E369C795874C0521" xlink:type="locator" />
    <presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_E19A46DCCA37A548FD54C795874C6BAA" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_24529E93B8A802B8E369C795874C0521" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_7045E1087624BC171D6BC795874CB6EB" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_24529E93B8A802B8E369C795874C0521" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_7045E1087624BC171D6BC795874CB6EB" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_3B9AE51969800B411CB6C795874C91D0" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_24529E93B8A802B8E369C795874C0521" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_3B9AE51969800B411CB6C795874C91D0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems" xlink:label="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_6419151FAF89A427A70BC795874C0027" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_1E4929C2B7784E5066D3C795874C5078" xlink:to="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_6419151FAF89A427A70BC795874C0027" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_NetRealizedLosses" xlink:label="loc_por_NetRealizedLosses_16746A40735DA97B07C6C795874C63CA" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_6419151FAF89A427A70BC795874C0027" xlink:to="loc_por_NetRealizedLosses_16746A40735DA97B07C6C795874C63CA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtFairValue" xlink:label="loc_us-gaap_LongTermDebtFairValue_E88CBC53E063DB667303C795874CFF9A" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_6419151FAF89A427A70BC795874C0027" xlink:to="loc_us-gaap_LongTermDebtFairValue_E88CBC53E063DB667303C795874CFF9A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaap_LongTermDebt_E05C8AF3CF687B05B4C8C795874C4BF9" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_6419151FAF89A427A70BC795874C0027" xlink:to="loc_us-gaap_LongTermDebt_E05C8AF3CF687B05B4C8C795874C4BF9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet_E1EEAA1FB601EB793F57C795874CCCD8" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_6419151FAF89A427A70BC795874C0027" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet_E1EEAA1FB601EB793F57C795874CCCD8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3_319CEB76F6D6894BE025C795874CDF6E" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_6419151FAF89A427A70BC795874C0027" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3_319CEB76F6D6894BE025C795874CDF6E" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/FairValueOfFinancialInstrumentsFairValueOptionsQuantitativeDisclosureDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueDisclosuresAbstract" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_4093D447E076198B2254EADE7D2C7CE3" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueOptionQuantitativeDisclosuresTable" xlink:label="loc_us-gaap_FairValueOptionQuantitativeDisclosuresTable_8FE7927EC2D253D58EE0EADE7D2CCAF5" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_4093D447E076198B2254EADE7D2C7CE3" xlink:to="loc_us-gaap_FairValueOptionQuantitativeDisclosuresTable_8FE7927EC2D253D58EE0EADE7D2CCAF5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EligibleItemOrGroupForFairValueOptionAxis" xlink:label="loc_us-gaap_EligibleItemOrGroupForFairValueOptionAxis_840550D7BB30543C1600EADE7D2CD516" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresTable_8FE7927EC2D253D58EE0EADE7D2CCAF5" xlink:to="loc_us-gaap_EligibleItemOrGroupForFairValueOptionAxis_840550D7BB30543C1600EADE7D2CD516" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueOptionEligibleItemOrGroupDomain" xlink:label="loc_us-gaap_FairValueOptionEligibleItemOrGroupDomain_4EF2329788C557C956E2EADE7D2CE285" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EligibleItemOrGroupForFairValueOptionAxis_840550D7BB30543C1600EADE7D2CD516" xlink:to="loc_us-gaap_FairValueOptionEligibleItemOrGroupDomain_4EF2329788C557C956E2EADE7D2CE285" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AvailableforsaleSecuritiesMember" xlink:label="loc_us-gaap_AvailableforsaleSecuritiesMember_7A5AB41F106B45548AC8EADE7D2CD822" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionEligibleItemOrGroupDomain_4EF2329788C557C956E2EADE7D2CE285" xlink:to="loc_us-gaap_AvailableforsaleSecuritiesMember_7A5AB41F106B45548AC8EADE7D2CD822" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember" xlink:label="loc_us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember_5833BE0B5A56FEF5E1D6EADE7D2CDE06" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionEligibleItemOrGroupDomain_4EF2329788C557C956E2EADE7D2CE285" xlink:to="loc_us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember_5833BE0B5A56FEF5E1D6EADE7D2CDE06" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_4417134A4ED273751991EADE7D2C95BA" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresTable_8FE7927EC2D253D58EE0EADE7D2CCAF5" xlink:to="loc_us-gaap_RangeAxis_4417134A4ED273751991EADE7D2C95BA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_D8B81183CFDEE122789DEADE7D2CD38E" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeAxis_4417134A4ED273751991EADE7D2C95BA" xlink:to="loc_us-gaap_RangeMember_D8B81183CFDEE122789DEADE7D2CD38E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_1C57F89B448C4022B788EADE7D2CC3D2" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_D8B81183CFDEE122789DEADE7D2CD38E" xlink:to="loc_us-gaap_MinimumMember_1C57F89B448C4022B788EADE7D2CC3D2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_4665722F8EE27E37653EEADE7D2CA01B" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_D8B81183CFDEE122789DEADE7D2CD38E" xlink:to="loc_us-gaap_MaximumMember_4665722F8EE27E37653EEADE7D2CA01B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WeightedAverageMember" xlink:label="loc_us-gaap_WeightedAverageMember_BB72B6EA13B1A713E4C8EADE7D2C1C2B" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_D8B81183CFDEE122789DEADE7D2CD38E" xlink:to="loc_us-gaap_WeightedAverageMember_BB72B6EA13B1A713E4C8EADE7D2C1C2B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueOptionQuantitativeDisclosuresLineItems" xlink:label="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_BDAEF79E877F3E5E4E41EADE7D2CFB19" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresTable_8FE7927EC2D253D58EE0EADE7D2CCAF5" xlink:to="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_BDAEF79E877F3E5E4E41EADE7D2CFB19" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_ElectricityPhysicalForwardPurchase" xlink:label="loc_por_ElectricityPhysicalForwardPurchase_CCED4213BCF1D53C6E42EADE7D2C158C" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_BDAEF79E877F3E5E4E41EADE7D2CFB19" xlink:to="loc_por_ElectricityPhysicalForwardPurchase_CCED4213BCF1D53C6E42EADE7D2C158C" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_NaturalGasFinancialSwaps" xlink:label="loc_por_NaturalGasFinancialSwaps_06B304E10A5072A09B8DEADE7D2C1445" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_BDAEF79E877F3E5E4E41EADE7D2CFB19" xlink:to="loc_por_NaturalGasFinancialSwaps_06B304E10A5072A09B8DEADE7D2C1445" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_FnancialSwapsElectricity" xlink:label="loc_por_FnancialSwapsElectricity_BD4E7DEC30978E2A2A5DEADE7D2C20D1" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_BDAEF79E877F3E5E4E41EADE7D2CFB19" xlink:to="loc_por_FnancialSwapsElectricity_BD4E7DEC30978E2A2A5DEADE7D2C20D1" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_TotalCommodityContracts" xlink:label="loc_por_TotalCommodityContracts_6D88BE46F6C1F79C9E9CEADE7D2C835F" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_BDAEF79E877F3E5E4E41EADE7D2CFB19" xlink:to="loc_por_TotalCommodityContracts_6D88BE46F6C1F79C9E9CEADE7D2C835F" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/FairValueOfFinancialInstrumentsFairValueUnobservableInputReconciliationDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_FairValueOfFinancialInstrumentsAbstract" xlink:label="loc_por_FairValueOfFinancialInstrumentsAbstract_9B1A6F996288462D517DAD539FC0ACD0" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable_67C65AD89F0B97AC899DAD539FC0F691" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_FairValueOfFinancialInstrumentsAbstract_9B1A6F996288462D517DAD539FC0ACD0" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable_67C65AD89F0B97AC899DAD539FC0F691" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueByAssetClassAxis" xlink:label="loc_us-gaap_FairValueByAssetClassAxis_F2AC24EEF80AC60EF08BAD539FC0F63F" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable_67C65AD89F0B97AC899DAD539FC0F691" xlink:to="loc_us-gaap_FairValueByAssetClassAxis_F2AC24EEF80AC60EF08BAD539FC0F63F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_589E550B7F9C2DC3CDE1AD539FC0C696" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByAssetClassAxis_F2AC24EEF80AC60EF08BAD539FC0F63F" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_589E550B7F9C2DC3CDE1AD539FC0C696" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_743B5F64A9B723864E21AD539FCF33D1" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable_67C65AD89F0B97AC899DAD539FC0F691" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_743B5F64A9B723864E21AD539FCF33D1" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_RealizedAndUnrealizedGainsAndLossesNetCommodityContract" xlink:label="loc_por_RealizedAndUnrealizedGainsAndLossesNetCommodityContract_16B53CFAE8FE7C085F7AAD539FCFE690" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_743B5F64A9B723864E21AD539FCF33D1" xlink:to="loc_por_RealizedAndUnrealizedGainsAndLossesNetCommodityContract_16B53CFAE8FE7C085F7AAD539FCFE690" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements_BA5DFAFC0B2E51791F27AD539FCF43C2" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_743B5F64A9B723864E21AD539FCF33D1" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements_BA5DFAFC0B2E51791F27AD539FCF43C2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3_C567C4F944DC83889C91AD539FCF3A0A" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_743B5F64A9B723864E21AD539FCF33D1" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3_C567C4F944DC83889C91AD539FCF3A0A" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_NetLiabilitiesFromPriceRiskManagementActivitiesClassifiedAsLevel3" xlink:label="loc_por_NetLiabilitiesFromPriceRiskManagementActivitiesClassifiedAsLevel3_69B8EE8DDF646F7D3B42AD539FCFF91A" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_743B5F64A9B723864E21AD539FCF33D1" xlink:to="loc_por_NetLiabilitiesFromPriceRiskManagementActivitiesClassifiedAsLevel3_69B8EE8DDF646F7D3B42AD539FCFF91A" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_Level3RealizedAndUnrealizedLossesOffsetByEffectOfRegulatoryAccounting" xlink:label="loc_por_Level3RealizedAndUnrealizedLossesOffsetByEffectOfRegulatoryAccounting_5CFE7AD0570CB855D7CCAD539FCF2250" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_743B5F64A9B723864E21AD539FCF33D1" xlink:to="loc_por_Level3RealizedAndUnrealizedLossesOffsetByEffectOfRegulatoryAccounting_5CFE7AD0570CB855D7CCAD539FCF2250" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_NetRealizedLosses" xlink:label="loc_por_NetRealizedLosses_E58BB07CEC9BD54BF5CAAD539FCF95E5" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_743B5F64A9B723864E21AD539FCF33D1" xlink:to="loc_por_NetRealizedLosses_E58BB07CEC9BD54BF5CAAD539FCF95E5" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/FairValueOfFinancialInstrumentsPolicies" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_FairValueOfFinancialInstrumentsAbstract" xlink:label="loc_por_FairValueOfFinancialInstrumentsAbstract_2774C5D08045FF2A2E23EADE7E94BE71" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueOfFinancialInstrumentsPolicy" xlink:label="loc_us-gaap_FairValueOfFinancialInstrumentsPolicy_225E2AED142BA3F2071CEADE7E94036A" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_FairValueOfFinancialInstrumentsAbstract_2774C5D08045FF2A2E23EADE7E94BE71" xlink:to="loc_us-gaap_FairValueOfFinancialInstrumentsPolicy_225E2AED142BA3F2071CEADE7E94036A" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_AllocationOfFinancialAssetToHierarchyLevelsPolicyTextBlock" xlink:label="loc_por_AllocationOfFinancialAssetToHierarchyLevelsPolicyTextBlock_A18FE111E619809D3852EADE7E941BEF" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_FairValueOfFinancialInstrumentsAbstract_2774C5D08045FF2A2E23EADE7E94BE71" xlink:to="loc_por_AllocationOfFinancialAssetToHierarchyLevelsPolicyTextBlock_A18FE111E619809D3852EADE7E941BEF" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_TransfersInAndOutOfLevel3PolicyTextBlock" xlink:label="loc_por_TransfersInAndOutOfLevel3PolicyTextBlock_E900A4239BAB5CA63D1FEADE7E944E51" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_FairValueOfFinancialInstrumentsAbstract_2774C5D08045FF2A2E23EADE7E94BE71" xlink:to="loc_por_TransfersInAndOutOfLevel3PolicyTextBlock_E900A4239BAB5CA63D1FEADE7E944E51" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtPolicyTextBlock" xlink:label="loc_us-gaap_DebtPolicyTextBlock_AC3C87BAFC647DBE43DFEADE7E9422E0" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_FairValueOfFinancialInstrumentsAbstract_2774C5D08045FF2A2E23EADE7E94BE71" xlink:to="loc_us-gaap_DebtPolicyTextBlock_AC3C87BAFC647DBE43DFEADE7E9422E0" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/FairValueOfFinancialInstrumentsScheduleOfFairValueDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_FairValueOfFinancialInstrumentsAbstract" xlink:label="loc_por_FairValueOfFinancialInstrumentsAbstract_D48E417790B0956AC73A89BCEAA34210" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_05222351603986327FFE89BCEAA33F14" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_FairValueOfFinancialInstrumentsAbstract_D48E417790B0956AC73A89BCEAA34210" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_05222351603986327FFE89BCEAA33F14" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_TrustAxis" xlink:label="loc_por_TrustAxis_20F881683F3C34BEA75E89BCEAA3594F" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_05222351603986327FFE89BCEAA33F14" xlink:to="loc_por_TrustAxis_20F881683F3C34BEA75E89BCEAA3594F" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_TrustDomain" xlink:label="loc_por_TrustDomain_83388455DF8A1ABDA81989BCEAA34D57" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_TrustAxis_20F881683F3C34BEA75E89BCEAA3594F" xlink:to="loc_por_TrustDomain_83388455DF8A1ABDA81989BCEAA34D57" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_NonQualifiedBenefitPlansMember" xlink:label="loc_por_NonQualifiedBenefitPlansMember_67F5D5BC4DB56AC05F4C89BCEAA3E65B" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_TrustDomain_83388455DF8A1ABDA81989BCEAA34D57" xlink:to="loc_por_NonQualifiedBenefitPlansMember_67F5D5BC4DB56AC05F4C89BCEAA3E65B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_4738D0A123A3D022350389BCEAA3728D" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_05222351603986327FFE89BCEAA33F14" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_4738D0A123A3D022350389BCEAA3728D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_090BEA3877E8C09DA1EA89BCEAA30623" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_4738D0A123A3D022350389BCEAA3728D" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_090BEA3877E8C09DA1EA89BCEAA30623" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_BDF62A1DAFC1E42880F789BCEAA3F802" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_05222351603986327FFE89BCEAA33F14" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_BDF62A1DAFC1E42880F789BCEAA3F802" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_A3829A2A96CE3F21D14489BCEAA39E46" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_BDF62A1DAFC1E42880F789BCEAA3F802" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_A3829A2A96CE3F21D14489BCEAA39E46" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_D7AF13306BEF1259246889BCEAA3E3B3" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_A3829A2A96CE3F21D14489BCEAA39E46" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_D7AF13306BEF1259246889BCEAA3E3B3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_1C23FDE9121D6B82834589BCEAA355CE" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_A3829A2A96CE3F21D14489BCEAA39E46" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_1C23FDE9121D6B82834589BCEAA355CE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_728EF9B8848BC7A1687C89BCEAA3B393" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_A3829A2A96CE3F21D14489BCEAA39E46" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_728EF9B8848BC7A1687C89BCEAA3B393" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_A0C90636658E69A6A68A89BCEAA30107" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_05222351603986327FFE89BCEAA33F14" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_A0C90636658E69A6A68A89BCEAA30107" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MoneyMarketFundsAtCarryingValue" xlink:label="loc_us-gaap_MoneyMarketFundsAtCarryingValue_8BB4D7CC0A4CFEBA82FB89BCEAA355DB" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_A0C90636658E69A6A68A89BCEAA30107" xlink:to="loc_us-gaap_MoneyMarketFundsAtCarryingValue_8BB4D7CC0A4CFEBA82FB89BCEAA355DB" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_USGovernmentSecuritiesAtCarryingValue" xlink:label="loc_us-gaap_USGovernmentSecuritiesAtCarryingValue_06F775C544A1E94D3FEF89BCEAA3B340" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_A0C90636658E69A6A68A89BCEAA30107" xlink:to="loc_us-gaap_USGovernmentSecuritiesAtCarryingValue_06F775C544A1E94D3FEF89BCEAA3B340" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CorporateDebtSecuritiesHeldInDecommissioningTrustAssets" xlink:label="loc_por_CorporateDebtSecuritiesHeldInDecommissioningTrustAssets_FE697D154AFDE8B03C3589BCEAA3E2BA" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_A0C90636658E69A6A68A89BCEAA30107" xlink:to="loc_por_CorporateDebtSecuritiesHeldInDecommissioningTrustAssets_FE697D154AFDE8B03C3589BCEAA3E2BA" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_FairValueMoneyMarketFunds" xlink:label="loc_por_FairValueMoneyMarketFunds_C5B0D74758997006A38E89C387F00210" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_A0C90636658E69A6A68A89BCEAA30107" xlink:to="loc_por_FairValueMoneyMarketFunds_C5B0D74758997006A38E89C387F00210" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_DomesticEquitySecurities" xlink:label="loc_por_DomesticEquitySecurities_AFDF613D192C7392661B89BCEAA30FD8" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_A0C90636658E69A6A68A89BCEAA30107" xlink:to="loc_por_DomesticEquitySecurities_AFDF613D192C7392661B89BCEAA30FD8" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_InternationalEquitySecurities" xlink:label="loc_por_InternationalEquitySecurities_7201D0CC68F41B6A359E89BCEAA3720C" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_A0C90636658E69A6A68A89BCEAA30107" xlink:to="loc_por_InternationalEquitySecurities_7201D0CC68F41B6A359E89BCEAA3720C" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_DebtSecuritiesDomesticGovernment" xlink:label="loc_por_DebtSecuritiesDomesticGovernment_E384716085FAF746BF0689BCEAA32BDC" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_A0C90636658E69A6A68A89BCEAA30107" xlink:to="loc_por_DebtSecuritiesDomesticGovernment_E384716085FAF746BF0689BCEAA32BDC" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CommodityContractAssetElectricity" xlink:label="loc_por_CommodityContractAssetElectricity_45CB95A182418B940C7889BCEAA3D044" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_A0C90636658E69A6A68A89BCEAA30107" xlink:to="loc_por_CommodityContractAssetElectricity_45CB95A182418B940C7889BCEAA3D044" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CommodityContractAssetNaturalGas" xlink:label="loc_por_CommodityContractAssetNaturalGas_F0691D4DAD2A2A01EDE489BCEAA3A23F" xlink:type="locator" />
    <presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_A0C90636658E69A6A68A89BCEAA30107" xlink:to="loc_por_CommodityContractAssetNaturalGas_F0691D4DAD2A2A01EDE489BCEAA3A23F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FinancialInstrumentsOwnedAtFairValue" xlink:label="loc_us-gaap_FinancialInstrumentsOwnedAtFairValue_6B582B2335054F70B42489BCEAA3C9E7" xlink:type="locator" />
    <presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_A0C90636658E69A6A68A89BCEAA30107" xlink:to="loc_us-gaap_FinancialInstrumentsOwnedAtFairValue_6B582B2335054F70B42489BCEAA3C9E7" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_LiabilitiesFromPriceRiskManagementActivitiesAbstract" xlink:label="loc_por_LiabilitiesFromPriceRiskManagementActivitiesAbstract_942B8566553F150B56B189BCEAA3BD37" xlink:type="locator" />
    <presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_A0C90636658E69A6A68A89BCEAA30107" xlink:to="loc_por_LiabilitiesFromPriceRiskManagementActivitiesAbstract_942B8566553F150B56B189BCEAA3BD37" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CommodityContractLiabilitiesElectricity" xlink:label="loc_por_CommodityContractLiabilitiesElectricity_69B1F3F89D2E89ECEF4289BCEAA38EBC" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_LiabilitiesFromPriceRiskManagementActivitiesAbstract_942B8566553F150B56B189BCEAA3BD37" xlink:to="loc_por_CommodityContractLiabilitiesElectricity_69B1F3F89D2E89ECEF4289BCEAA38EBC" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CommodityContractLiabilitiesNaturalGas" xlink:label="loc_por_CommodityContractLiabilitiesNaturalGas_2EA5B2EE1CACF3A86F0F89BCEAA382CA" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_LiabilitiesFromPriceRiskManagementActivitiesAbstract_942B8566553F150B56B189BCEAA3BD37" xlink:to="loc_por_CommodityContractLiabilitiesNaturalGas_2EA5B2EE1CACF3A86F0F89BCEAA382CA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesFairValueDisclosure" xlink:label="loc_us-gaap_LiabilitiesFairValueDisclosure_071A16CD2AC5BC6B95D889BCEAA3F372" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_LiabilitiesFromPriceRiskManagementActivitiesAbstract_942B8566553F150B56B189BCEAA3BD37" xlink:to="loc_us-gaap_LiabilitiesFairValueDisclosure_071A16CD2AC5BC6B95D889BCEAA3F372" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashSurrenderValueFairValueDisclosure" xlink:label="loc_us-gaap_CashSurrenderValueFairValueDisclosure_1D32267DA5843FE8267D89BCEAA3F7DD" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_LiabilitiesFromPriceRiskManagementActivitiesAbstract_942B8566553F150B56B189BCEAA3BD37" xlink:to="loc_us-gaap_CashSurrenderValueFairValueDisclosure_1D32267DA5843FE8267D89BCEAA3F7DD" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/FairValueOfFinancialInstrumentsTables" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_FairValueOfFinancialInstrumentsAbstract" xlink:label="loc_por_FairValueOfFinancialInstrumentsAbstract_DB69C1A7710067AE8384EADE7E9ED429" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_B06DF75C6CD1B76D026FEADE7E9EE2D0" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_FairValueOfFinancialInstrumentsAbstract_DB69C1A7710067AE8384EADE7E9ED429" xlink:to="loc_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_B06DF75C6CD1B76D026FEADE7E9EE2D0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueOptionQuantitativeDisclosuresTextBlock" xlink:label="loc_us-gaap_FairValueOptionQuantitativeDisclosuresTextBlock_F3B7A3EE9610755BF0E0EADE7E9E3740" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_FairValueOfFinancialInstrumentsAbstract_DB69C1A7710067AE8384EADE7E9ED429" xlink:to="loc_us-gaap_FairValueOptionQuantitativeDisclosuresTextBlock_F3B7A3EE9610755BF0E0EADE7E9E3740" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock_FFED433721AAD521EABDEADE7E9ED43E" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_FairValueOfFinancialInstrumentsAbstract_DB69C1A7710067AE8384EADE7E9ED429" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock_FFED433721AAD521EABDEADE7E9ED43E" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/FairValuesOfPriceRiskManagementAssetsAndLiabilitiesDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_PriceRiskManagementAbstract" xlink:label="loc_por_PriceRiskManagementAbstract_150CAACCF83F27BDB9B1EADE7CF070CC" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable" xlink:label="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_5AB8E03BCC7FAC898B92EADE7CF0FBE9" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_PriceRiskManagementAbstract_150CAACCF83F27BDB9B1EADE7CF070CC" xlink:to="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_5AB8E03BCC7FAC898B92EADE7CF0FBE9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeByNatureAxis" xlink:label="loc_us-gaap_DerivativeByNatureAxis_F6822A20A97D7504F113EADE7CF0A5FC" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_5AB8E03BCC7FAC898B92EADE7CF0FBE9" xlink:to="loc_us-gaap_DerivativeByNatureAxis_F6822A20A97D7504F113EADE7CF0A5FC" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeNameDomain" xlink:label="loc_us-gaap_DerivativeNameDomain_AE9216273489B9A9F0FBEADE7CF0B684" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeByNatureAxis_F6822A20A97D7504F113EADE7CF0A5FC" xlink:to="loc_us-gaap_DerivativeNameDomain_AE9216273489B9A9F0FBEADE7CF0B684" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeLineItems" xlink:label="loc_us-gaap_DerivativeLineItems_069622143471431D7412EADE7CF06A3F" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_5AB8E03BCC7FAC898B92EADE7CF0FBE9" xlink:to="loc_us-gaap_DerivativeLineItems_069622143471431D7412EADE7CF06A3F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="loc_us-gaap_AssetsCurrentAbstract_3387CEF79D431DBA28C1EADE7CF0A9B3" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_069622143471431D7412EADE7CF06A3F" xlink:to="loc_us-gaap_AssetsCurrentAbstract_3387CEF79D431DBA28C1EADE7CF0A9B3" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CurrentAssetsCommodityContractsAbstract" xlink:label="loc_por_CurrentAssetsCommodityContractsAbstract_303A50265767DA398558EADE7CF0B575" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_3387CEF79D431DBA28C1EADE7CF0A9B3" xlink:to="loc_por_CurrentAssetsCommodityContractsAbstract_303A50265767DA398558EADE7CF0B575" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CommodityContractAssetCurrentElectricity" xlink:label="loc_por_CommodityContractAssetCurrentElectricity_AF55C7D1A51355C90584EADE7CF03E8C" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_CurrentAssetsCommodityContractsAbstract_303A50265767DA398558EADE7CF0B575" xlink:to="loc_por_CommodityContractAssetCurrentElectricity_AF55C7D1A51355C90584EADE7CF03E8C" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CommodityContractAssetCurrentNaturalGas" xlink:label="loc_por_CommodityContractAssetCurrentNaturalGas_31FC75C1F88D9A3072C3EADE7CF00DD5" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_CurrentAssetsCommodityContractsAbstract_303A50265767DA398558EADE7CF0B575" xlink:to="loc_por_CommodityContractAssetCurrentNaturalGas_31FC75C1F88D9A3072C3EADE7CF00DD5" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CurrentDerivativeAssets" xlink:label="loc_por_CurrentDerivativeAssets_D6521938BF2094983806EADE7CF0EF0C" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_CurrentAssetsCommodityContractsAbstract_303A50265767DA398558EADE7CF0B575" xlink:to="loc_por_CurrentDerivativeAssets_D6521938BF2094983806EADE7CF0EF0C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetsNoncurrentAbstract" xlink:label="loc_us-gaap_AssetsNoncurrentAbstract_D3CCC39345BD96C93932EADE7CF0ED19" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_069622143471431D7412EADE7CF06A3F" xlink:to="loc_us-gaap_AssetsNoncurrentAbstract_D3CCC39345BD96C93932EADE7CF0ED19" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_NoncurrentAssetsCommodityContractsAbstract" xlink:label="loc_por_NoncurrentAssetsCommodityContractsAbstract_B972649D25BDF424A436EADE7CF065DB" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsNoncurrentAbstract_D3CCC39345BD96C93932EADE7CF0ED19" xlink:to="loc_por_NoncurrentAssetsCommodityContractsAbstract_B972649D25BDF424A436EADE7CF065DB" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CommodityContractAssetNoncurrentElectricity" xlink:label="loc_por_CommodityContractAssetNoncurrentElectricity_DD65C042AB7C99079D53EADE7CF00C1F" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_NoncurrentAssetsCommodityContractsAbstract_B972649D25BDF424A436EADE7CF065DB" xlink:to="loc_por_CommodityContractAssetNoncurrentElectricity_DD65C042AB7C99079D53EADE7CF00C1F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeAssetsNoncurrent" xlink:label="loc_us-gaap_DerivativeAssetsNoncurrent_2025C254193AACEB917FEADE7CF0556D" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_069622143471431D7412EADE7CF06A3F" xlink:to="loc_us-gaap_DerivativeAssetsNoncurrent_2025C254193AACEB917FEADE7CF0556D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue" xlink:label="loc_us-gaap_PriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue_907CCC5EC7EFE873C869EADE7CF059F7" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_069622143471431D7412EADE7CF06A3F" xlink:to="loc_us-gaap_PriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue_907CCC5EC7EFE873C869EADE7CF059F7" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_DerivativeAssetsTotal" xlink:label="loc_por_DerivativeAssetsTotal_FAEA2FDDDF4266FABFEEEADE7CF06897" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_069622143471431D7412EADE7CF06A3F" xlink:to="loc_por_DerivativeAssetsTotal_FAEA2FDDDF4266FABFEEEADE7CF06897" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract_DAEE2491E10AEDBF1EF7EADE7CF05F8E" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_069622143471431D7412EADE7CF06A3F" xlink:to="loc_us-gaap_LiabilitiesCurrentAbstract_DAEE2491E10AEDBF1EF7EADE7CF05F8E" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CurrentLiabilitiesCommodityContractsAbstract" xlink:label="loc_por_CurrentLiabilitiesCommodityContractsAbstract_6B124E6106A34DE1A97CEADE7CF05DE4" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_DAEE2491E10AEDBF1EF7EADE7CF05F8E" xlink:to="loc_por_CurrentLiabilitiesCommodityContractsAbstract_6B124E6106A34DE1A97CEADE7CF05DE4" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CommodityContractLiabilityCurrentElectricity" xlink:label="loc_por_CommodityContractLiabilityCurrentElectricity_C6489676B82FF1300918EADE7CF0FA37" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_CurrentLiabilitiesCommodityContractsAbstract_6B124E6106A34DE1A97CEADE7CF05DE4" xlink:to="loc_por_CommodityContractLiabilityCurrentElectricity_C6489676B82FF1300918EADE7CF0FA37" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CommodityContractLiabilityCurrentNaturalGas" xlink:label="loc_por_CommodityContractLiabilityCurrentNaturalGas_80A7DC5734685F31D7C3EADE7CF087AF" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_CurrentLiabilitiesCommodityContractsAbstract_6B124E6106A34DE1A97CEADE7CF05DE4" xlink:to="loc_por_CommodityContractLiabilityCurrentNaturalGas_80A7DC5734685F31D7C3EADE7CF087AF" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CurrentDerivativeLiabilities" xlink:label="loc_por_CurrentDerivativeLiabilities_B67ACF03E02A03757D10EADE7CF051BC" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_CurrentLiabilitiesCommodityContractsAbstract_6B124E6106A34DE1A97CEADE7CF05DE4" xlink:to="loc_por_CurrentDerivativeLiabilities_B67ACF03E02A03757D10EADE7CF051BC" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesNoncurrentAbstract" xlink:label="loc_us-gaap_LiabilitiesNoncurrentAbstract_67752EE16B7F1C2366A5EADE7CF02D8A" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_069622143471431D7412EADE7CF06A3F" xlink:to="loc_us-gaap_LiabilitiesNoncurrentAbstract_67752EE16B7F1C2366A5EADE7CF02D8A" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_NoncurrentLiabilitiesCommodityContractsAbstract" xlink:label="loc_por_NoncurrentLiabilitiesCommodityContractsAbstract_89BE724663C056262922EADE7CF06046" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_67752EE16B7F1C2366A5EADE7CF02D8A" xlink:to="loc_por_NoncurrentLiabilitiesCommodityContractsAbstract_89BE724663C056262922EADE7CF06046" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CommodityContractLiabilityNoncurrentElectricity" xlink:label="loc_por_CommodityContractLiabilityNoncurrentElectricity_A8C83722CB050DB4F8F4EADE7CF0C16D" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_NoncurrentLiabilitiesCommodityContractsAbstract_89BE724663C056262922EADE7CF06046" xlink:to="loc_por_CommodityContractLiabilityNoncurrentElectricity_A8C83722CB050DB4F8F4EADE7CF0C16D" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CommodityContractLiabilityNoncurrentNaturalGas" xlink:label="loc_por_CommodityContractLiabilityNoncurrentNaturalGas_02EFEDFC6F7622A50B5BEADE7CF03315" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_NoncurrentLiabilitiesCommodityContractsAbstract_89BE724663C056262922EADE7CF06046" xlink:to="loc_por_CommodityContractLiabilityNoncurrentNaturalGas_02EFEDFC6F7622A50B5BEADE7CF03315" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_NoncurrentDerivativeLiabilities" xlink:label="loc_por_NoncurrentDerivativeLiabilities_7B3161A961D99DECAE59EADE7CF042C3" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_NoncurrentLiabilitiesCommodityContractsAbstract_89BE724663C056262922EADE7CF06046" xlink:to="loc_por_NoncurrentDerivativeLiabilities_7B3161A961D99DECAE59EADE7CF042C3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue" xlink:label="loc_us-gaap_PriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue_4DD13FA15AF44E6047A7EADE7CF06963" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_069622143471431D7412EADE7CF06A3F" xlink:to="loc_us-gaap_PriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue_4DD13FA15AF44E6047A7EADE7CF06963" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_DerivativeLiabilitiesTotal" xlink:label="loc_por_DerivativeLiabilitiesTotal_A43CAC697A848E6FB234EADE7CF052F3" xlink:type="locator" />
    <presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_069622143471431D7412EADE7CF06A3F" xlink:to="loc_por_DerivativeLiabilitiesTotal_A43CAC697A848E6FB234EADE7CF052F3" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/FutureYearNetUnrealizedGainLossRecordedAtBalanceSheetDateExpectedToBecomeRealizedDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_PriceRiskManagementAbstract" xlink:label="loc_por_PriceRiskManagementAbstract_76572DEA5D9C1B808703EADE7E263289" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeTable" xlink:label="loc_us-gaap_DerivativeTable_07EFD8D5438AF706AB9CEADE7E26AAE1" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_PriceRiskManagementAbstract_76572DEA5D9C1B808703EADE7E263289" xlink:to="loc_us-gaap_DerivativeTable_07EFD8D5438AF706AB9CEADE7E26AAE1" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_09B3A8A540004FD4F37FEADE7E26F317" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeTable_07EFD8D5438AF706AB9CEADE7E26AAE1" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_09B3A8A540004FD4F37FEADE7E26F317" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_2CE47017E337FC5928B3EADE7E26A4D0" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_09B3A8A540004FD4F37FEADE7E26F317" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_2CE47017E337FC5928B3EADE7E26A4D0" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_ElectricityMember" xlink:label="loc_por_ElectricityMember_7E615167ABA172572849EADE7E265520" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_2CE47017E337FC5928B3EADE7E26A4D0" xlink:to="loc_por_ElectricityMember_7E615167ABA172572849EADE7E265520" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NaturalGasReservesMember" xlink:label="loc_us-gaap_NaturalGasReservesMember_C1E14AA7B010BBA3001FEADE7E2607FD" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_2CE47017E337FC5928B3EADE7E26A4D0" xlink:to="loc_us-gaap_NaturalGasReservesMember_C1E14AA7B010BBA3001FEADE7E2607FD" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_UnrealizedGainLossOnDerivativesMember" xlink:label="loc_por_UnrealizedGainLossOnDerivativesMember_FB90749418E3AFFBB400EADE7E262051" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_2CE47017E337FC5928B3EADE7E26A4D0" xlink:to="loc_por_UnrealizedGainLossOnDerivativesMember_FB90749418E3AFFBB400EADE7E262051" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeLineItems" xlink:label="loc_us-gaap_DerivativeLineItems_45A7225574A700465951EADE7E26E8DB" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeTable_07EFD8D5438AF706AB9CEADE7E26AAE1" xlink:to="loc_us-gaap_DerivativeLineItems_45A7225574A700465951EADE7E26E8DB" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContractsAbstract" xlink:label="loc_us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContractsAbstract_4C545BE02AE62B90F04CEADE7E268FB8" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_45A7225574A700465951EADE7E26E8DB" xlink:to="loc_us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContractsAbstract_4C545BE02AE62B90F04CEADE7E268FB8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherCommitmentDueInNextTwelveMonths" xlink:label="loc_us-gaap_OtherCommitmentDueInNextTwelveMonths_ACCDE1CABE4BDBCCAB92EADE7E26F21B" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContractsAbstract_4C545BE02AE62B90F04CEADE7E268FB8" xlink:to="loc_us-gaap_OtherCommitmentDueInNextTwelveMonths_ACCDE1CABE4BDBCCAB92EADE7E26F21B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherCommitmentDueInSecondYear" xlink:label="loc_us-gaap_OtherCommitmentDueInSecondYear_F675586F6F39BA7ED243EADE7E2616E6" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContractsAbstract_4C545BE02AE62B90F04CEADE7E268FB8" xlink:to="loc_us-gaap_OtherCommitmentDueInSecondYear_F675586F6F39BA7ED243EADE7E2616E6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherCommitmentDueInThirdYear" xlink:label="loc_us-gaap_OtherCommitmentDueInThirdYear_DA2DF62831AA72017828EADE7E265660" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContractsAbstract_4C545BE02AE62B90F04CEADE7E268FB8" xlink:to="loc_us-gaap_OtherCommitmentDueInThirdYear_DA2DF62831AA72017828EADE7E265660" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherCommitmentDueInFourthYear" xlink:label="loc_us-gaap_OtherCommitmentDueInFourthYear_B1C1D3085A8F2AAC0018EADE7E261465" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContractsAbstract_4C545BE02AE62B90F04CEADE7E268FB8" xlink:to="loc_us-gaap_OtherCommitmentDueInFourthYear_B1C1D3085A8F2AAC0018EADE7E261465" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherCommitmentDueInFifthYear" xlink:label="loc_us-gaap_OtherCommitmentDueInFifthYear_4F3800AC77F4A72C92BFEADE7E26FC84" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContractsAbstract_4C545BE02AE62B90F04CEADE7E268FB8" xlink:to="loc_us-gaap_OtherCommitmentDueInFifthYear_4F3800AC77F4A72C92BFEADE7E26FC84" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherCommitmentDueAfterFifthYear" xlink:label="loc_us-gaap_OtherCommitmentDueAfterFifthYear_C9A8AD31829408EA0DA7EADE7E260EFD" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContractsAbstract_4C545BE02AE62B90F04CEADE7E268FB8" xlink:to="loc_us-gaap_OtherCommitmentDueAfterFifthYear_C9A8AD31829408EA0DA7EADE7E260EFD" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherCommitment" xlink:label="loc_us-gaap_OtherCommitment_5A2A963C8D75F1189D19EADE7E2642AC" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContractsAbstract_4C545BE02AE62B90F04CEADE7E268FB8" xlink:to="loc_us-gaap_OtherCommitment_5A2A963C8D75F1189D19EADE7E2642AC" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/IncomeTaxes" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_IncomeTaxesNoteAbstract" xlink:label="loc_por_IncomeTaxesNoteAbstract_EA46A8C2EC28273818EBEADE7D0EC9A5" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeTaxDisclosureTextBlock" xlink:label="loc_us-gaap_IncomeTaxDisclosureTextBlock_4D9E2649119BEFFC93D9EADE7D0E5E63" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_IncomeTaxesNoteAbstract_EA46A8C2EC28273818EBEADE7D0EC9A5" xlink:to="loc_us-gaap_IncomeTaxDisclosureTextBlock_4D9E2649119BEFFC93D9EADE7D0E5E63" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/IncomeTaxesIncomeTaxesDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_IncomeTaxesAbstract" xlink:label="loc_por_IncomeTaxesAbstract_6958F30298BA6FDBF5E3AD604EFE7C97" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingLossCarryforwardsTable" xlink:label="loc_us-gaap_OperatingLossCarryforwardsTable_6A270AFF1FFE04149D2AAD604EFE6B87" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_IncomeTaxesAbstract_6958F30298BA6FDBF5E3AD604EFE7C97" xlink:to="loc_us-gaap_OperatingLossCarryforwardsTable_6A270AFF1FFE04149D2AAD604EFE6B87" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeTaxAuthorityAxis" xlink:label="loc_us-gaap_IncomeTaxAuthorityAxis_79722C7959B78049F922AD604EFEA0D3" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsTable_6A270AFF1FFE04149D2AAD604EFE6B87" xlink:to="loc_us-gaap_IncomeTaxAuthorityAxis_79722C7959B78049F922AD604EFEA0D3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeTaxAuthorityDomain" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_658F65508388C8841896AD604EFE79EF" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_79722C7959B78049F922AD604EFEA0D3" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_658F65508388C8841896AD604EFE79EF" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingLossCarryforwardsLineItems" xlink:label="loc_us-gaap_OperatingLossCarryforwardsLineItems_9AAF6F27C1B8F8A70F54AD604EFEEB94" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsTable_6A270AFF1FFE04149D2AAD604EFE6B87" xlink:to="loc_us-gaap_OperatingLossCarryforwardsLineItems_9AAF6F27C1B8F8A70F54AD604EFEEB94" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_TaxCreditCarryforwardFederal" xlink:label="loc_por_TaxCreditCarryforwardFederal_60B909EFF08266F5A88EAD604EFE812F" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_9AAF6F27C1B8F8A70F54AD604EFEEB94" xlink:to="loc_por_TaxCreditCarryforwardFederal_60B909EFF08266F5A88EAD604EFE812F" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_TaxCreditCarryforwardState" xlink:label="loc_por_TaxCreditCarryforwardState_8D4F8960EDCB72F9AA67AD604EFE9F40" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_9AAF6F27C1B8F8A70F54AD604EFEEB94" xlink:to="loc_por_TaxCreditCarryforwardState_8D4F8960EDCB72F9AA67AD604EFE9F40" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaap_DeferredTaxAssetsValuationAllowance_19941F2BB0927BEEDBC1AD604EFE685B" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_9AAF6F27C1B8F8A70F54AD604EFEEB94" xlink:to="loc_us-gaap_DeferredTaxAssetsValuationAllowance_19941F2BB0927BEEDBC1AD604EFE685B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UnrecognizedTaxBenefits" xlink:label="loc_us-gaap_UnrecognizedTaxBenefits_2484AA820AFEA6E86866AD604EFEF584" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_9AAF6F27C1B8F8A70F54AD604EFEEB94" xlink:to="loc_us-gaap_UnrecognizedTaxBenefits_2484AA820AFEA6E86866AD604EFEF584" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/IncomeTaxesIncomeTaxesTables" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_IncomeTaxesAbstract" xlink:label="loc_por_IncomeTaxesAbstract_050EE1C43C350C6060A9EADE7D36575F" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_9B778AB3C4BDDA714882EADE7D36205B" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_IncomeTaxesAbstract_050EE1C43C350C6060A9EADE7D36575F" xlink:to="loc_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_9B778AB3C4BDDA714882EADE7D36205B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_8739C034059AD86A441EEADE7D3610EE" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_IncomeTaxesAbstract_050EE1C43C350C6060A9EADE7D36575F" xlink:to="loc_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_8739C034059AD86A441EEADE7D3610EE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_6B58E5EA85B9C9213521EADE7D367AFF" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_IncomeTaxesAbstract_050EE1C43C350C6060A9EADE7D36575F" xlink:to="loc_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_6B58E5EA85B9C9213521EADE7D367AFF" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/IncomeTaxesScheduleOfComponentsOfIncomeTaxExpenseDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_IncomeTaxesAbstract" xlink:label="loc_por_IncomeTaxesAbstract_097FC0D308ED634C9A2FEADE7CE6714C" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_11FE398DB51133E20E21EADE7CE6E03A" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_IncomeTaxesAbstract_097FC0D308ED634C9A2FEADE7CE6714C" xlink:to="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_11FE398DB51133E20E21EADE7CE6E03A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CurrentFederalTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentFederalTaxExpenseBenefit_30EF32C2983FCF7F15D7EADE7CE6CD0D" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_11FE398DB51133E20E21EADE7CE6E03A" xlink:to="loc_us-gaap_CurrentFederalTaxExpenseBenefit_30EF32C2983FCF7F15D7EADE7CE6CD0D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CurrentStateAndLocalTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_4E0FAD6D1F6924F1C8F8EADE7CE6A9A3" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_11FE398DB51133E20E21EADE7CE6E03A" xlink:to="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_4E0FAD6D1F6924F1C8F8EADE7CE6A9A3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_A603A6243B66DEC2FA82EADE7CE69193" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_11FE398DB51133E20E21EADE7CE6E03A" xlink:to="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_A603A6243B66DEC2FA82EADE7CE69193" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_DeferredAbstract" xlink:label="loc_por_DeferredAbstract_7D2AB2E9781E69A1F2A8EADE7CE69336" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_IncomeTaxesAbstract_097FC0D308ED634C9A2FEADE7CE6714C" xlink:to="loc_por_DeferredAbstract_7D2AB2E9781E69A1F2A8EADE7CE69336" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredFederalIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_076079BC52BA92BD7B2BEADE7CE6310D" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_DeferredAbstract_7D2AB2E9781E69A1F2A8EADE7CE69336" xlink:to="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_076079BC52BA92BD7B2BEADE7CE6310D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_FBEEEC150C524E65B629EADE7CE6B430" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_DeferredAbstract_7D2AB2E9781E69A1F2A8EADE7CE69336" xlink:to="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_FBEEEC150C524E65B629EADE7CE6B430" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_DeferredIncomeTaxExpenseFootnote" xlink:label="loc_por_DeferredIncomeTaxExpenseFootnote_7EEF9051EE77218ABB19EADE7CE678B2" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_IncomeTaxesAbstract_097FC0D308ED634C9A2FEADE7CE6714C" xlink:to="loc_por_DeferredIncomeTaxExpenseFootnote_7EEF9051EE77218ABB19EADE7CE678B2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_2AA2271F963F1524E679EADE7CE61583" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_IncomeTaxesAbstract_097FC0D308ED634C9A2FEADE7CE6714C" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_2AA2271F963F1524E679EADE7CE61583" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_IncomeTaxesAbstract" xlink:label="loc_por_IncomeTaxesAbstract_040FB03BBE39A261DC87ADF29C98151D" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredTaxAssetsNetAbstract" xlink:label="loc_us-gaap_DeferredTaxAssetsNetAbstract_EB146FD023A79A35073CADF29C98D14B" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_IncomeTaxesAbstract_040FB03BBE39A261DC87ADF29C98151D" xlink:to="loc_us-gaap_DeferredTaxAssetsNetAbstract_EB146FD023A79A35073CADF29C98D14B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits_0AD77633F7B92320BA80ADF29C986C09" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_EB146FD023A79A35073CADF29C98D14B" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits_0AD77633F7B92320BA80ADF29C986C09" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_DeferredTaxAssetsPriceRiskManagement" xlink:label="loc_por_DeferredTaxAssetsPriceRiskManagement_103DD117060586995444ADF29C98D4A6" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_EB146FD023A79A35073CADF29C98D14B" xlink:to="loc_por_DeferredTaxAssetsPriceRiskManagement_103DD117060586995444ADF29C98D4A6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredTaxAssetsRegulatoryAssetsAndLiabilities" xlink:label="loc_us-gaap_DeferredTaxAssetsRegulatoryAssetsAndLiabilities_31367106BEB25E8FF416ADF29C98DF60" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_EB146FD023A79A35073CADF29C98D14B" xlink:to="loc_us-gaap_DeferredTaxAssetsRegulatoryAssetsAndLiabilities_31367106BEB25E8FF416ADF29C98DF60" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_DeferredTaxAssetsTaxCreditsNetOfValuationAllowance" xlink:label="loc_por_DeferredTaxAssetsTaxCreditsNetOfValuationAllowance_333BD2DA405DCA6264F3ADF29C982CA9" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_EB146FD023A79A35073CADF29C98D14B" xlink:to="loc_por_DeferredTaxAssetsTaxCreditsNetOfValuationAllowance_333BD2DA405DCA6264F3ADF29C982CA9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseOther" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseOther_CC1F7D9F9CC2926B5433ADF29C98C4A4" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_EB146FD023A79A35073CADF29C98D14B" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseOther_CC1F7D9F9CC2926B5433ADF29C98C4A4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredTaxAssetsNet" xlink:label="loc_us-gaap_DeferredTaxAssetsNet_DDF4D44B4459CB7C0FE5ADF29C9847A0" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_EB146FD023A79A35073CADF29C98D14B" xlink:to="loc_us-gaap_DeferredTaxAssetsNet_DDF4D44B4459CB7C0FE5ADF29C9847A0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredTaxLiabilitiesAbstract" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesAbstract_52B22D76045B18BCA267ADF29C989451" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_IncomeTaxesAbstract_040FB03BBE39A261DC87ADF29C98151D" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesAbstract_52B22D76045B18BCA267ADF29C989451" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_590DF8DFE218414412FAADF29C982F59" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesAbstract_52B22D76045B18BCA267ADF29C989451" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_590DF8DFE218414412FAADF29C982F59" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredTaxLiabilitiesRegulatoryAssets" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesRegulatoryAssets_068B3B6976F8B7C94E56ADF29C980C6C" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesAbstract_52B22D76045B18BCA267ADF29C989451" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesRegulatoryAssets_068B3B6976F8B7C94E56ADF29C980C6C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredTaxLiabilitiesOther" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesOther_DB76619C2950E8F7275AADF29C984679" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesAbstract_52B22D76045B18BCA267ADF29C989451" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesOther_DB76619C2950E8F7275AADF29C984679" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredTaxLiabilitiesGrossNoncurrent" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesGrossNoncurrent_3664CD2EB7DB2FADBCEAADF29C98CBAB" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesAbstract_52B22D76045B18BCA267ADF29C989451" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesGrossNoncurrent_3664CD2EB7DB2FADBCEAADF29C98CBAB" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredTaxLiabilities" xlink:label="loc_us-gaap_DeferredTaxLiabilities_6343B80C731F5D421246ADF29C98CAE7" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesAbstract_52B22D76045B18BCA267ADF29C989451" xlink:to="loc_us-gaap_DeferredTaxLiabilities_6343B80C731F5D421246ADF29C98CAE7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract" xlink:label="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract_8183A87A7F09B075D5B8ADF29C98E6F6" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_IncomeTaxesAbstract_040FB03BBE39A261DC87ADF29C98151D" xlink:to="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract_8183A87A7F09B075D5B8ADF29C98E6F6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredTaxAssetsNetCurrent" xlink:label="loc_us-gaap_DeferredTaxAssetsNetCurrent_8787DFA93870B7E587BEADF29C98F56C" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract_8183A87A7F09B075D5B8ADF29C98E6F6" xlink:to="loc_us-gaap_DeferredTaxAssetsNetCurrent_8787DFA93870B7E587BEADF29C98F56C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredTaxLiabilitiesNoncurrent" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesNoncurrent_9CA79ADDE21A39F7C7E0ADF29C9843DF" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract_8183A87A7F09B075D5B8ADF29C98E6F6" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesNoncurrent_9CA79ADDE21A39F7C7E0ADF29C9843DF" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/IncomeTaxesScheduleOfEffectiveIncomeTaxRateReconciliationDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_IncomeTaxesAbstract" xlink:label="loc_por_IncomeTaxesAbstract_80FDDF5F1AD796BAE7FEAD604F2DC3C5" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_F9F743C690A4257B2A5FAD604F2D753C" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_IncomeTaxesAbstract_80FDDF5F1AD796BAE7FEAD604F2DC3C5" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_F9F743C690A4257B2A5FAD604F2D753C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsOther" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsOther_0231020185FB5CC58B0BAD604F2D9E2F" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_IncomeTaxesAbstract_80FDDF5F1AD796BAE7FEAD604F2DC3C5" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsOther_0231020185FB5CC58B0BAD604F2D9E2F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_E5C524D810B37FC154C4AD604F2DA1FD" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_IncomeTaxesAbstract_80FDDF5F1AD796BAE7FEAD604F2DC3C5" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_E5C524D810B37FC154C4AD604F2DA1FD" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciation" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciation_F237169AD6E8E81D0219AD604F2D1C7F" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_IncomeTaxesAbstract_80FDDF5F1AD796BAE7FEAD604F2DC3C5" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciation_F237169AD6E8E81D0219AD604F2D1C7F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_BC0139385399DA3DE52DAD604F2D7F91" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_IncomeTaxesAbstract_80FDDF5F1AD796BAE7FEAD604F2DC3C5" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_BC0139385399DA3DE52DAD604F2D7F91" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperations" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_90624C3DE862EC453264AD604F2D03F7" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_IncomeTaxesAbstract_80FDDF5F1AD796BAE7FEAD604F2DC3C5" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_90624C3DE862EC453264AD604F2D03F7" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/JointlyOwnedPlant" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_JointlyOwnedPlantAbstract" xlink:label="loc_por_JointlyOwnedPlantAbstract_52C3E51FF3D157612B8EEADE7DFE02E5" xlink:type="locator" />
    <loc xlink:href="por-20151231.xsd#por_JointlyOwnedPlantTextBlock" xlink:label="loc_por_JointlyOwnedPlantTextBlock_D1794086CF18F812CC0FEADE7DFE3028" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_JointlyOwnedPlantAbstract_52C3E51FF3D157612B8EEADE7DFE02E5" xlink:to="loc_por_JointlyOwnedPlantTextBlock_D1794086CF18F812CC0FEADE7DFE3028" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/JointlyOwnedPlantJointlyOwnedPlantDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_JointlyOwnedPlantAbstract" xlink:label="loc_por_JointlyOwnedPlantAbstract_757A6C216A5447BBE90CB897B98962D0" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_6BF4D22028606CF54C62B897B9897348" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_JointlyOwnedPlantAbstract_757A6C216A5447BBE90CB897B98962D0" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_6BF4D22028606CF54C62B897B9897348" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_94C2CC4A9DC58A397558B897B9891DB9" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_6BF4D22028606CF54C62B897B9897348" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_94C2CC4A9DC58A397558B897B9891DB9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_5316AFAD078BBEED57D3B897B989C3F3" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_94C2CC4A9DC58A397558B897B9891DB9" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_5316AFAD078BBEED57D3B897B989C3F3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_19296613E18CC5603048B897B9894333" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_6BF4D22028606CF54C62B897B9897348" xlink:to="loc_us-gaap_RangeAxis_19296613E18CC5603048B897B9894333" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_D0CC7673081B9162DAC1B897B989B0BE" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeAxis_19296613E18CC5603048B897B9894333" xlink:to="loc_us-gaap_RangeMember_D0CC7673081B9162DAC1B897B989B0BE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_8ECA48F939074F7F65D3B897B989FFAC" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_6BF4D22028606CF54C62B897B9897348" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentLineItems_8ECA48F939074F7F65D3B897B989FFAC" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_JointlyOwnedUtilityPlantProportionateOwnershipShareofBoardmantransferred" xlink:label="loc_por_JointlyOwnedUtilityPlantProportionateOwnershipShareofBoardmantransferred_6098530A1FDB0A9C0B65B897B9891F05" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_8ECA48F939074F7F65D3B897B989FFAC" xlink:to="loc_por_JointlyOwnedUtilityPlantProportionateOwnershipShareofBoardmantransferred_6098530A1FDB0A9C0B65B897B9891F05" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration_BB2725298910CA8BC943B897B98971C4" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_8ECA48F939074F7F65D3B897B989FFAC" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration_BB2725298910CA8BC943B897B98971C4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedEquipment" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedEquipment_69B6274173E25FF5EA25B897B9899BA1" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_8ECA48F939074F7F65D3B897B989FFAC" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedEquipment_69B6274173E25FF5EA25B897B9899BA1" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory_26817B4E0A21F1512D4CB897B9898423" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_8ECA48F939074F7F65D3B897B989FFAC" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory_26817B4E0A21F1512D4CB897B9898423" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetRetirementObligationLiabilitiesIncurred" xlink:label="loc_us-gaap_AssetRetirementObligationLiabilitiesIncurred_AEA032A1C5EA40CB8A3CB897B989E737" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_8ECA48F939074F7F65D3B897B989FFAC" xlink:to="loc_us-gaap_AssetRetirementObligationLiabilitiesIncurred_AEA032A1C5EA40CB8A3CB897B989E737" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities_EC228FCEAC7E687EE7E3B897B989B7DD" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_8ECA48F939074F7F65D3B897B989FFAC" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities_EC228FCEAC7E687EE7E3B897B989B7DD" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilities" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilities_2679A211A0F86082872FB897B999CBBC" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_8ECA48F939074F7F65D3B897B989FFAC" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilities_2679A211A0F86082872FB897B999CBBC" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFinancialLiabilities" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFinancialLiabilities_37BA83A05DDD57EDB92BB897B999F79F" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_8ECA48F939074F7F65D3B897B989FFAC" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFinancialLiabilities_37BA83A05DDD57EDB92BB897B999F79F" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_AssetRetirementObligationIncreaseRelatedToBoardmanPlant" xlink:label="loc_por_AssetRetirementObligationIncreaseRelatedToBoardmanPlant_1CF6F4E83E3A60A7A883B897B999A6AF" xlink:type="locator" />
    <presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_8ECA48F939074F7F65D3B897B989FFAC" xlink:to="loc_por_AssetRetirementObligationIncreaseRelatedToBoardmanPlant_1CF6F4E83E3A60A7A883B897B999A6AF" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_InterestinPacificNorthwestIntertie" xlink:label="loc_por_InterestinPacificNorthwestIntertie_61D8C71DFDA66B612C7EB897B999BA80" xlink:type="locator" />
    <presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_8ECA48F939074F7F65D3B897B989FFAC" xlink:to="loc_por_InterestinPacificNorthwestIntertie_61D8C71DFDA66B612C7EB897B999BA80" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_JointlyOwnedUtilityPlantProportionateOwnershipShareOfBoardman" xlink:label="loc_por_JointlyOwnedUtilityPlantProportionateOwnershipShareOfBoardman_A8270F9AC6E31B9E4D04B897B999F477" xlink:type="locator" />
    <presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_8ECA48F939074F7F65D3B897B989FFAC" xlink:to="loc_por_JointlyOwnedUtilityPlantProportionateOwnershipShareOfBoardman_A8270F9AC6E31B9E4D04B897B999F477" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/JointlyOwnedPlantScheduleOfJointlyOwnedPlantDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_LointlyOwnedPlantAbstract" xlink:label="loc_por_LointlyOwnedPlantAbstract_89E8A54669378DA3A75FEADE7E6C9607" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_JointlyOwnedUtilityPlantInterestsTable" xlink:label="loc_us-gaap_JointlyOwnedUtilityPlantInterestsTable_6DFA77D9AAFB3763E457EADE7E6CD8A9" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_LointlyOwnedPlantAbstract_89E8A54669378DA3A75FEADE7E6C9607" xlink:to="loc_us-gaap_JointlyOwnedUtilityPlantInterestsTable_6DFA77D9AAFB3763E457EADE7E6CD8A9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_JointlyOwnedUtilityPlantAxis" xlink:label="loc_us-gaap_JointlyOwnedUtilityPlantAxis_1820722E40D8EFA63657EADE7E6CDFEC" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_JointlyOwnedUtilityPlantInterestsTable_6DFA77D9AAFB3763E457EADE7E6CD8A9" xlink:to="loc_us-gaap_JointlyOwnedUtilityPlantAxis_1820722E40D8EFA63657EADE7E6CDFEC" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_JointlyOwnedUtilityPlantDomain" xlink:label="loc_us-gaap_JointlyOwnedUtilityPlantDomain_5EF9D08E746A69E8D5FFEADE7E6CC10C" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_JointlyOwnedUtilityPlantAxis_1820722E40D8EFA63657EADE7E6CDFEC" xlink:to="loc_us-gaap_JointlyOwnedUtilityPlantDomain_5EF9D08E746A69E8D5FFEADE7E6CC10C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_JointlyOwnedUtilityPlantInterestsLineItems" xlink:label="loc_us-gaap_JointlyOwnedUtilityPlantInterestsLineItems_B1145C798C74774F8172EADE7E6CBA3D" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_JointlyOwnedUtilityPlantInterestsTable_6DFA77D9AAFB3763E457EADE7E6CD8A9" xlink:to="loc_us-gaap_JointlyOwnedUtilityPlantInterestsLineItems_B1145C798C74774F8172EADE7E6CBA3D" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_JointlyOwnedUtilityPlantProportionateOwnershipShareOfBoardman" xlink:label="loc_por_JointlyOwnedUtilityPlantProportionateOwnershipShareOfBoardman_08FAE460ADDB8E1D7232EADE7E6C0F55" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_JointlyOwnedUtilityPlantInterestsLineItems_B1145C798C74774F8172EADE7E6CBA3D" xlink:to="loc_por_JointlyOwnedUtilityPlantProportionateOwnershipShareOfBoardman_08FAE460ADDB8E1D7232EADE7E6C0F55" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_JointlyOwnedPlantBoardmanPlantInServiceYear" xlink:label="loc_por_JointlyOwnedPlantBoardmanPlantInServiceYear_AAB72A49A16D4F5BBBC2EADE7E6CAE31" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_JointlyOwnedUtilityPlantInterestsLineItems_B1145C798C74774F8172EADE7E6CBA3D" xlink:to="loc_por_JointlyOwnedPlantBoardmanPlantInServiceYear_AAB72A49A16D4F5BBBC2EADE7E6CAE31" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_JointlyOwnedUtilityPlantGrossOwnershipAmountOfBoardmanPlantInService" xlink:label="loc_por_JointlyOwnedUtilityPlantGrossOwnershipAmountOfBoardmanPlantInService_A92F4668E4CE6D03447AEADE7E6C6CD5" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_JointlyOwnedUtilityPlantInterestsLineItems_B1145C798C74774F8172EADE7E6CBA3D" xlink:to="loc_por_JointlyOwnedUtilityPlantGrossOwnershipAmountOfBoardmanPlantInService_A92F4668E4CE6D03447AEADE7E6C6CD5" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_JointlyOwnedUtilityPlantOwnershipAmountOfBoardmanPlantAccumulatedDepreciation" xlink:label="loc_por_JointlyOwnedUtilityPlantOwnershipAmountOfBoardmanPlantAccumulatedDepreciation_A5F8DBC9568CE68DE1B6EADE7E6C0131" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_JointlyOwnedUtilityPlantInterestsLineItems_B1145C798C74774F8172EADE7E6CBA3D" xlink:to="loc_por_JointlyOwnedUtilityPlantOwnershipAmountOfBoardmanPlantAccumulatedDepreciation_A5F8DBC9568CE68DE1B6EADE7E6C0131" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_JointlyOwnedUtilityPlantOwnershipAmountOfConstructionWorkInProgressBoardman" xlink:label="loc_por_JointlyOwnedUtilityPlantOwnershipAmountOfConstructionWorkInProgressBoardman_062DD3F063A1A8904408EADE7E6C6323" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_JointlyOwnedUtilityPlantInterestsLineItems_B1145C798C74774F8172EADE7E6CBA3D" xlink:to="loc_por_JointlyOwnedUtilityPlantOwnershipAmountOfConstructionWorkInProgressBoardman_062DD3F063A1A8904408EADE7E6C6323" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_JointlyOwnedUtilityPlantProportionateOwnershipShareOfColstrip" xlink:label="loc_por_JointlyOwnedUtilityPlantProportionateOwnershipShareOfColstrip_DF2D69D554A3C5967C0CEADE7E6C867B" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_JointlyOwnedUtilityPlantInterestsLineItems_B1145C798C74774F8172EADE7E6CBA3D" xlink:to="loc_por_JointlyOwnedUtilityPlantProportionateOwnershipShareOfColstrip_DF2D69D554A3C5967C0CEADE7E6C867B" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_JointlyOwnedPlantColstripPlantInServiceYear" xlink:label="loc_por_JointlyOwnedPlantColstripPlantInServiceYear_F9B6E6B053FFE1EAB6E3EADE7E6C5E03" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_JointlyOwnedUtilityPlantInterestsLineItems_B1145C798C74774F8172EADE7E6CBA3D" xlink:to="loc_por_JointlyOwnedPlantColstripPlantInServiceYear_F9B6E6B053FFE1EAB6E3EADE7E6C5E03" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_JointlyOwnedUtilityPlantGrossOwnershipAmountOfColstripPlantInService" xlink:label="loc_por_JointlyOwnedUtilityPlantGrossOwnershipAmountOfColstripPlantInService_BC2983852D3F8DED5EA8EADE7E6C0C9B" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_JointlyOwnedUtilityPlantInterestsLineItems_B1145C798C74774F8172EADE7E6CBA3D" xlink:to="loc_por_JointlyOwnedUtilityPlantGrossOwnershipAmountOfColstripPlantInService_BC2983852D3F8DED5EA8EADE7E6C0C9B" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_JointlyOwnedUtilityPlantOwnershipAmountOfColstripPlantAccumulatedDepreciation" xlink:label="loc_por_JointlyOwnedUtilityPlantOwnershipAmountOfColstripPlantAccumulatedDepreciation_7BB2760F185FF4E7CE96EADE7E6C42A9" xlink:type="locator" />
    <presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_JointlyOwnedUtilityPlantInterestsLineItems_B1145C798C74774F8172EADE7E6CBA3D" xlink:to="loc_por_JointlyOwnedUtilityPlantOwnershipAmountOfColstripPlantAccumulatedDepreciation_7BB2760F185FF4E7CE96EADE7E6C42A9" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_JointlyOwnedUtilityPlantOwnershipAmountOfConstructionWorkInProgressColstrip" xlink:label="loc_por_JointlyOwnedUtilityPlantOwnershipAmountOfConstructionWorkInProgressColstrip_8C7E07A584DFF92A8D26EADE7E6C0601" xlink:type="locator" />
    <presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_JointlyOwnedUtilityPlantInterestsLineItems_B1145C798C74774F8172EADE7E6CBA3D" xlink:to="loc_por_JointlyOwnedUtilityPlantOwnershipAmountOfConstructionWorkInProgressColstrip_8C7E07A584DFF92A8D26EADE7E6C0601" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_JointlyOwnedUtilityPlantProportionateOwnershipShareOfPeltonroundButte" xlink:label="loc_por_JointlyOwnedUtilityPlantProportionateOwnershipShareOfPeltonroundButte_E437A7983C5CE446F587EADE7E6C37BB" xlink:type="locator" />
    <presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_JointlyOwnedUtilityPlantInterestsLineItems_B1145C798C74774F8172EADE7E6CBA3D" xlink:to="loc_por_JointlyOwnedUtilityPlantProportionateOwnershipShareOfPeltonroundButte_E437A7983C5CE446F587EADE7E6C37BB" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_JointlyOwnedPlantPeltoninServiceYear" xlink:label="loc_por_JointlyOwnedPlantPeltoninServiceYear_B2F8F5FFA7B239E7C91DEADE7E6CE845" xlink:type="locator" />
    <presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_JointlyOwnedUtilityPlantInterestsLineItems_B1145C798C74774F8172EADE7E6CBA3D" xlink:to="loc_por_JointlyOwnedPlantPeltoninServiceYear_B2F8F5FFA7B239E7C91DEADE7E6CE845" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_JointlyOwnedPlantRoundButteinServiceYear" xlink:label="loc_por_JointlyOwnedPlantRoundButteinServiceYear_4E3C4D3A13DFBEC4395FEADE7E6C9BA2" xlink:type="locator" />
    <presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_JointlyOwnedUtilityPlantInterestsLineItems_B1145C798C74774F8172EADE7E6CBA3D" xlink:to="loc_por_JointlyOwnedPlantRoundButteinServiceYear_4E3C4D3A13DFBEC4395FEADE7E6C9BA2" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_JointlyOwnedUtilityPlantGrossOwnershipAmountOfPeltonroundButtePlantInService" xlink:label="loc_por_JointlyOwnedUtilityPlantGrossOwnershipAmountOfPeltonroundButtePlantInService_840B792645D298A9AE08EADE7E6C01F3" xlink:type="locator" />
    <presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_JointlyOwnedUtilityPlantInterestsLineItems_B1145C798C74774F8172EADE7E6CBA3D" xlink:to="loc_por_JointlyOwnedUtilityPlantGrossOwnershipAmountOfPeltonroundButtePlantInService_840B792645D298A9AE08EADE7E6C01F3" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_JointlyOwnedUtilityPlantOwnershipAmountOfPeltonroundButtePlantAccumulatedDepreciation" xlink:label="loc_por_JointlyOwnedUtilityPlantOwnershipAmountOfPeltonroundButtePlantAccumulatedDepreciation_1F13C78728F10BDDA502EADE7E6CDD9D" xlink:type="locator" />
    <presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_JointlyOwnedUtilityPlantInterestsLineItems_B1145C798C74774F8172EADE7E6CBA3D" xlink:to="loc_por_JointlyOwnedUtilityPlantOwnershipAmountOfPeltonroundButtePlantAccumulatedDepreciation_1F13C78728F10BDDA502EADE7E6CDD9D" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_JointlyOwnedUtilityPlantOwnershipAmountOfConstructionWorkInProgressPeltonroundButte" xlink:label="loc_por_JointlyOwnedUtilityPlantOwnershipAmountOfConstructionWorkInProgressPeltonroundButte_A74BA72FC174F9233E79EADE7E6CA8D9" xlink:type="locator" />
    <presentationArc order="16" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_JointlyOwnedUtilityPlantInterestsLineItems_B1145C798C74774F8172EADE7E6CBA3D" xlink:to="loc_por_JointlyOwnedUtilityPlantOwnershipAmountOfConstructionWorkInProgressPeltonroundButte_A74BA72FC174F9233E79EADE7E6CA8D9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_JointlyOwnedUtilityPlantGrossOwnershipAmountOfPlantInService" xlink:label="loc_us-gaap_JointlyOwnedUtilityPlantGrossOwnershipAmountOfPlantInService_EDBBD855CAB1A832E59CEADE7E6CF161" xlink:type="locator" />
    <presentationArc order="17" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_JointlyOwnedUtilityPlantInterestsLineItems_B1145C798C74774F8172EADE7E6CBA3D" xlink:to="loc_us-gaap_JointlyOwnedUtilityPlantGrossOwnershipAmountOfPlantInService_EDBBD855CAB1A832E59CEADE7E6CF161" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_JointlyOwnedUtilityPlantOwnershipAmountOfPlantAccumulatedDepreciation" xlink:label="loc_us-gaap_JointlyOwnedUtilityPlantOwnershipAmountOfPlantAccumulatedDepreciation_5C52BED10FAD9A4F36EDEADE7E6C2CCD" xlink:type="locator" />
    <presentationArc order="18" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_JointlyOwnedUtilityPlantInterestsLineItems_B1145C798C74774F8172EADE7E6CBA3D" xlink:to="loc_us-gaap_JointlyOwnedUtilityPlantOwnershipAmountOfPlantAccumulatedDepreciation_5C52BED10FAD9A4F36EDEADE7E6C2CCD" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_JointlyOwnedUtilityPlantOwnershipAmountOfConstructionWorkInProgress" xlink:label="loc_us-gaap_JointlyOwnedUtilityPlantOwnershipAmountOfConstructionWorkInProgress_C4FF14789B25555359FAEADE7E6CE92F" xlink:type="locator" />
    <presentationArc order="19" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_JointlyOwnedUtilityPlantInterestsLineItems_B1145C798C74774F8172EADE7E6CBA3D" xlink:to="loc_us-gaap_JointlyOwnedUtilityPlantOwnershipAmountOfConstructionWorkInProgress_C4FF14789B25555359FAEADE7E6CE92F" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/JointlyOwnedPlantTables" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_JointlyOwnedPlantAbstract" xlink:label="loc_por_JointlyOwnedPlantAbstract_8A231569F570890C3308EADE7D36685E" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfJointlyOwnedUtilityPlantsTextBlock" xlink:label="loc_us-gaap_ScheduleOfJointlyOwnedUtilityPlantsTextBlock_3CD0F173C1E8690628E5EADE7D366B0C" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_JointlyOwnedPlantAbstract_8A231569F570890C3308EADE7D36685E" xlink:to="loc_us-gaap_ScheduleOfJointlyOwnedUtilityPlantsTextBlock_3CD0F173C1E8690628E5EADE7D366B0C" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/LongTermDebt" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_LongTermDebtDisclosureAbstract" xlink:label="loc_por_LongTermDebtDisclosureAbstract_BB8BEE544BD6603A74FDEADE7D40141C" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtTextBlock" xlink:label="loc_us-gaap_LongTermDebtTextBlock_42179F60DA6DB29588E4EADE7D40051F" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_LongTermDebtDisclosureAbstract_BB8BEE544BD6603A74FDEADE7D40141C" xlink:to="loc_us-gaap_LongTermDebtTextBlock_42179F60DA6DB29588E4EADE7D40051F" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/LongTermDebtDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtAbstract" xlink:label="loc_us-gaap_LongTermDebtAbstract_196C5572D566A59D1264A971C3E03D89" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="loc_us-gaap_DebtInstrumentTable_8A69C2078A2A5128226FA971C3E02AF8" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermDebtAbstract_196C5572D566A59D1264A971C3E03D89" xlink:to="loc_us-gaap_DebtInstrumentTable_8A69C2078A2A5128226FA971C3E02AF8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_DC7C90D745C978C1B5E3A971C3E00732" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_8A69C2078A2A5128226FA971C3E02AF8" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_DC7C90D745C978C1B5E3A971C3E00732" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_2345DFAE60772DDD8C8DA971C3E04FCA" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_DC7C90D745C978C1B5E3A971C3E00732" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_2345DFAE60772DDD8C8DA971C3E04FCA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaap_SubsequentEventMember_D69FC784A06E49FBC5EDA971C3E0E306" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_2345DFAE60772DDD8C8DA971C3E04FCA" xlink:to="loc_us-gaap_SubsequentEventMember_D69FC784A06E49FBC5EDA971C3E0E306" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_us-gaap_DebtInstrumentLineItems_20AAE3338471C8471A3AA971C3E04328" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_8A69C2078A2A5128226FA971C3E02AF8" xlink:to="loc_us-gaap_DebtInstrumentLineItems_20AAE3338471C8471A3AA971C3E04328" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromIssuanceOfFirstMortgageBond" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfFirstMortgageBond_1FEE0758DABEC8229F66A971C3E0ACB8" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_20AAE3338471C8471A3AA971C3E04328" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfFirstMortgageBond_1FEE0758DABEC8229F66A971C3E0ACB8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RepaymentsOfDebt" xlink:label="loc_us-gaap_RepaymentsOfDebt_6BFCD4B52C01E0AD0A67A9828EA7BE9D" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_20AAE3338471C8471A3AA971C3E04328" xlink:to="loc_us-gaap_RepaymentsOfDebt_6BFCD4B52C01E0AD0A67A9828EA7BE9D" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_RemarketablePollutionControlBonds" xlink:label="loc_por_RemarketablePollutionControlBonds_19F82E40F5CB28BCF89FA971C3E05335" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_20AAE3338471C8471A3AA971C3E04328" xlink:to="loc_por_RemarketablePollutionControlBonds_19F82E40F5CB28BCF89FA971C3E05335" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_555DFD3D32EBF0CF385DA971C3E06647" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_20AAE3338471C8471A3AA971C3E04328" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_555DFD3D32EBF0CF385DA971C3E06647" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_E5640F4D94A4CC1B5A76A971C3E0F23D" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_20AAE3338471C8471A3AA971C3E04328" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_E5640F4D94A4CC1B5A76A971C3E0F23D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UnsecuredDebtCurrent" xlink:label="loc_us-gaap_UnsecuredDebtCurrent_AEF745B4270FD2FEFAA7A971C3E00C08" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermDebtAbstract_196C5572D566A59D1264A971C3E03D89" xlink:to="loc_us-gaap_UnsecuredDebtCurrent_AEF745B4270FD2FEFAA7A971C3E00C08" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_FirstMortgageBondsMinimumRate" xlink:label="loc_por_FirstMortgageBondsMinimumRate_DF2A6D541D02050D168BA971C3E07170" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermDebtAbstract_196C5572D566A59D1264A971C3E03D89" xlink:to="loc_por_FirstMortgageBondsMinimumRate_DF2A6D541D02050D168BA971C3E07170" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_FirstMortgageBondsMaximumRate" xlink:label="loc_por_FirstMortgageBondsMaximumRate_14D5245FBE54E680AB68A971C3E039F7" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermDebtAbstract_196C5572D566A59D1264A971C3E03D89" xlink:to="loc_por_FirstMortgageBondsMaximumRate_14D5245FBE54E680AB68A971C3E039F7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtWeightedAverageInterestRate" xlink:label="loc_us-gaap_DebtWeightedAverageInterestRate_0FE23C90B4E735375836A971C3E0BBD7" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermDebtAbstract_196C5572D566A59D1264A971C3E03D89" xlink:to="loc_us-gaap_DebtWeightedAverageInterestRate_0FE23C90B4E735375836A971C3E0BBD7" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_Unsecuredtermbankloanrateminimum" xlink:label="loc_por_Unsecuredtermbankloanrateminimum_E2FDEE3278B852BBD5F9A971C3E0EAD4" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermDebtAbstract_196C5572D566A59D1264A971C3E03D89" xlink:to="loc_por_Unsecuredtermbankloanrateminimum_E2FDEE3278B852BBD5F9A971C3E0EAD4" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_Unsecuredtermbankloanratemaximum" xlink:label="loc_por_Unsecuredtermbankloanratemaximum_BB8FEE15BD3DF47FB891A971C3E0586D" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermDebtAbstract_196C5572D566A59D1264A971C3E03D89" xlink:to="loc_por_Unsecuredtermbankloanratemaximum_BB8FEE15BD3DF47FB891A971C3E0586D" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_PollutionControlRevenueBondsOwnedByPge" xlink:label="loc_por_PollutionControlRevenueBondsOwnedByPge_1D6215579DCD08FE0843A971C3E07FF7" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermDebtAbstract_196C5572D566A59D1264A971C3E03D89" xlink:to="loc_por_PollutionControlRevenueBondsOwnedByPge_1D6215579DCD08FE0843A971C3E07FF7" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_LongTermPollutionControlBondRate" xlink:label="loc_por_LongTermPollutionControlBondRate_4E8D6EFF11C26D0B9326A971C3E0205E" xlink:type="locator" />
    <presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermDebtAbstract_196C5572D566A59D1264A971C3E03D89" xlink:to="loc_por_LongTermPollutionControlBondRate_4E8D6EFF11C26D0B9326A971C3E0205E" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/LongTermDebtScheduleOfLongTermDebtInstrumentsDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtAbstract" xlink:label="loc_us-gaap_LongTermDebtAbstract_AA267473A81B031C426EEADE7D189FE8" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="loc_us-gaap_DebtInstrumentTable_1B993C077BE6AC2E49FCEADE7D18B8EE" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermDebtAbstract_AA267473A81B031C426EEADE7D189FE8" xlink:to="loc_us-gaap_DebtInstrumentTable_1B993C077BE6AC2E49FCEADE7D18B8EE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_B07308D8A024709F33DAEADE7D1849E3" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_1B993C077BE6AC2E49FCEADE7D18B8EE" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_B07308D8A024709F33DAEADE7D1849E3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_B14455102C92C7703B6BEADE7D180440" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_B07308D8A024709F33DAEADE7D1849E3" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_B14455102C92C7703B6BEADE7D180440" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="loc_us-gaap_DebtInstrumentAxis_B32EB576E427B2910BA8EADE7D1841F1" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_1B993C077BE6AC2E49FCEADE7D18B8EE" xlink:to="loc_us-gaap_DebtInstrumentAxis_B32EB576E427B2910BA8EADE7D1841F1" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_C14157026B1EED1E9AAFEADE7D18A975" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_B32EB576E427B2910BA8EADE7D1841F1" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_C14157026B1EED1E9AAFEADE7D18A975" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_us-gaap_DebtInstrumentLineItems_176F784F0435813F744DEADE7D18E466" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_1B993C077BE6AC2E49FCEADE7D18B8EE" xlink:to="loc_us-gaap_DebtInstrumentLineItems_176F784F0435813F744DEADE7D18E466" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_LongTermDebtFirstMortgageBonds" xlink:label="loc_por_LongTermDebtFirstMortgageBonds_8972A8D449F31213AF32EADE7D182965" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_176F784F0435813F744DEADE7D18E466" xlink:to="loc_por_LongTermDebtFirstMortgageBonds_8972A8D449F31213AF32EADE7D182965" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UnsecuredDebtCurrent" xlink:label="loc_us-gaap_UnsecuredDebtCurrent_7ABAF57E1E286CD2DE7DEADE7D1825D4" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_176F784F0435813F744DEADE7D18E466" xlink:to="loc_us-gaap_UnsecuredDebtCurrent_7ABAF57E1E286CD2DE7DEADE7D1825D4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongtermPollutionControlBondCurrentAndNoncurrent" xlink:label="loc_us-gaap_LongtermPollutionControlBondCurrentAndNoncurrent_BA2BF0F6658CAC299872EADE7D18DA4B" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_176F784F0435813F744DEADE7D18E466" xlink:to="loc_us-gaap_LongtermPollutionControlBondCurrentAndNoncurrent_BA2BF0F6658CAC299872EADE7D18DA4B" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_PollutionControlRevenueBondsOwnedByPge" xlink:label="loc_por_PollutionControlRevenueBondsOwnedByPge_A1BC7E7D9ADEAECEE9C1EADE7D182A7C" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_176F784F0435813F744DEADE7D18E466" xlink:to="loc_por_PollutionControlRevenueBondsOwnedByPge_A1BC7E7D9ADEAECEE9C1EADE7D182A7C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaap_LongTermDebt_3496BBA241E4715F7775EADE7D18C45E" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_176F784F0435813F744DEADE7D18E466" xlink:to="loc_us-gaap_LongTermDebt_3496BBA241E4715F7775EADE7D18C45E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtCurrent" xlink:label="loc_us-gaap_LongTermDebtCurrent_1801F2314BD8D54DFCE2EADE7D18F8F6" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_176F784F0435813F744DEADE7D18E466" xlink:to="loc_us-gaap_LongTermDebtCurrent_1801F2314BD8D54DFCE2EADE7D18F8F6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_7BECAF6B89D44ED447C7EADE7D18AF03" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_176F784F0435813F744DEADE7D18E466" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_7BECAF6B89D44ED447C7EADE7D18AF03" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/LongTermDebtScheduleOfMaturitiesOfLongTermDebtDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtAbstract" xlink:label="loc_us-gaap_LongTermDebtAbstract_446C486A46BEFC317117EADE7D40775B" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_061EB743CF8E63AD8965EADE7D401CAA" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermDebtAbstract_446C486A46BEFC317117EADE7D40775B" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_061EB743CF8E63AD8965EADE7D401CAA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_7C391747E7C3C92E10C0EADE7D40B19C" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermDebtAbstract_446C486A46BEFC317117EADE7D40775B" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_7C391747E7C3C92E10C0EADE7D40B19C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_70B1155D4B81BBA2653DEADE7D40F94A" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermDebtAbstract_446C486A46BEFC317117EADE7D40775B" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_70B1155D4B81BBA2653DEADE7D40F94A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_0B2F90D7A2D7AF35B333EADE7D40F5D3" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermDebtAbstract_446C486A46BEFC317117EADE7D40775B" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_0B2F90D7A2D7AF35B333EADE7D40F5D3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_1892374E43B1F0E99E9FEADE7D402B52" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermDebtAbstract_446C486A46BEFC317117EADE7D40775B" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_1892374E43B1F0E99E9FEADE7D402B52" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_4BC6F37D0602D528FC94EADE7D40860C" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermDebtAbstract_446C486A46BEFC317117EADE7D40775B" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_4BC6F37D0602D528FC94EADE7D40860C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaap_LongTermDebt_503DA6437470615CF2BBEADE7D403590" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermDebtAbstract_446C486A46BEFC317117EADE7D40775B" xlink:to="loc_us-gaap_LongTermDebt_503DA6437470615CF2BBEADE7D403590" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/LongTermDebtTables" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtAbstract" xlink:label="loc_us-gaap_LongTermDebtAbstract_CCABA07116F61231E6C4EADE7E7656B3" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfDebtInstrumentsTextBlock" xlink:label="loc_us-gaap_ScheduleOfDebtInstrumentsTextBlock_A4C8E5BFC672A7DA1F1FEADE7E76966F" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermDebtAbstract_CCABA07116F61231E6C4EADE7E7656B3" xlink:to="loc_us-gaap_ScheduleOfDebtInstrumentsTextBlock_A4C8E5BFC672A7DA1F1FEADE7E76966F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_4940FF3F0A87D6B1652DEADE7E7645C8" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermDebtAbstract_CCABA07116F61231E6C4EADE7E7656B3" xlink:to="loc_us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_4940FF3F0A87D6B1652DEADE7E7645C8" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/NetRealizedAndUnrealizedGainsAndLossesOnDerivativeTransactionsDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_PriceRiskManagementAbstract" xlink:label="loc_por_PriceRiskManagementAbstract_0AD06B88CAF6D018FF45EADE7DE0781B" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeTable" xlink:label="loc_us-gaap_DerivativeTable_840C8C66736A9028A64BEADE7DE06A97" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_PriceRiskManagementAbstract_0AD06B88CAF6D018FF45EADE7DE0781B" xlink:to="loc_us-gaap_DerivativeTable_840C8C66736A9028A64BEADE7DE06A97" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeByNatureAxis" xlink:label="loc_us-gaap_DerivativeByNatureAxis_A8576A76F13156474F45EADE7DE01DEB" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeTable_840C8C66736A9028A64BEADE7DE06A97" xlink:to="loc_us-gaap_DerivativeByNatureAxis_A8576A76F13156474F45EADE7DE01DEB" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeNameDomain" xlink:label="loc_us-gaap_DerivativeNameDomain_0696426FA0A65727129BEADE7DE022F2" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeByNatureAxis_A8576A76F13156474F45EADE7DE01DEB" xlink:to="loc_us-gaap_DerivativeNameDomain_0696426FA0A65727129BEADE7DE022F2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeLineItems" xlink:label="loc_us-gaap_DerivativeLineItems_7DD7EAC29F44266687CEEADE7DE0AF97" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeTable_840C8C66736A9028A64BEADE7DE06A97" xlink:to="loc_us-gaap_DerivativeLineItems_7DD7EAC29F44266687CEEADE7DE0AF97" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CommodityContractsAbstract" xlink:label="loc_por_CommodityContractsAbstract_D016BC1EDC8155429716EADE7DE00487" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_7DD7EAC29F44266687CEEADE7DE0AF97" xlink:to="loc_por_CommodityContractsAbstract_D016BC1EDC8155429716EADE7DE00487" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_RealizedAndUnrealizedGainsAndLossesNetCommodityContractsElectricity" xlink:label="loc_por_RealizedAndUnrealizedGainsAndLossesNetCommodityContractsElectricity_4A6BEC14F9E2EF01A786EADE7DE0070F" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_CommodityContractsAbstract_D016BC1EDC8155429716EADE7DE00487" xlink:to="loc_por_RealizedAndUnrealizedGainsAndLossesNetCommodityContractsElectricity_4A6BEC14F9E2EF01A786EADE7DE0070F" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_RealizedAndUnrealizedGainsAndLossesNetCommodityContractsNaturalGas" xlink:label="loc_por_RealizedAndUnrealizedGainsAndLossesNetCommodityContractsNaturalGas_E8E4A8401569B7ED54C5EADE7DE0DB7A" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_CommodityContractsAbstract_D016BC1EDC8155429716EADE7DE00487" xlink:to="loc_por_RealizedAndUnrealizedGainsAndLossesNetCommodityContractsNaturalGas_E8E4A8401569B7ED54C5EADE7DE0DB7A" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_RealizedAndUnrealizedGainsAndLossesNetCommodityContractsForeignCurrency" xlink:label="loc_por_RealizedAndUnrealizedGainsAndLossesNetCommodityContractsForeignCurrency_08D1F58AFB6639BE3D64EADE7DE0BC11" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_7DD7EAC29F44266687CEEADE7DE0AF97" xlink:to="loc_por_RealizedAndUnrealizedGainsAndLossesNetCommodityContractsForeignCurrency_08D1F58AFB6639BE3D64EADE7DE0BC11" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/NetVolumesRelatedToPriceRiskManagementActivitiesDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_PriceRiskManagementAbstract" xlink:label="loc_por_PriceRiskManagementAbstract_A1C7661F5CFBE342ED45EADE7E949A85" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeTable" xlink:label="loc_us-gaap_DerivativeTable_996A762A997DEB5266DAEADE7E94D32B" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_PriceRiskManagementAbstract_A1C7661F5CFBE342ED45EADE7E949A85" xlink:to="loc_us-gaap_DerivativeTable_996A762A997DEB5266DAEADE7E94D32B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeByNatureAxis" xlink:label="loc_us-gaap_DerivativeByNatureAxis_6972695D96AC7F4E92C4EADE7E942579" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeTable_996A762A997DEB5266DAEADE7E94D32B" xlink:to="loc_us-gaap_DerivativeByNatureAxis_6972695D96AC7F4E92C4EADE7E942579" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeNameDomain" xlink:label="loc_us-gaap_DerivativeNameDomain_E2F9F76E10C7ADDDD65FEADE7E94FCD2" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeByNatureAxis_6972695D96AC7F4E92C4EADE7E942579" xlink:to="loc_us-gaap_DerivativeNameDomain_E2F9F76E10C7ADDDD65FEADE7E94FCD2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeLineItems" xlink:label="loc_us-gaap_DerivativeLineItems_48198F11A6323961D5AEEADE7E94F27A" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeTable_996A762A997DEB5266DAEADE7E94D32B" xlink:to="loc_us-gaap_DerivativeLineItems_48198F11A6323961D5AEEADE7E94F27A" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CommodityContractsAbstract" xlink:label="loc_por_CommodityContractsAbstract_5F1B67B503B6CC5F2EACEADE7E944FAD" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_48198F11A6323961D5AEEADE7E94F27A" xlink:to="loc_por_CommodityContractsAbstract_5F1B67B503B6CC5F2EACEADE7E944FAD" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_VolumeRelatedToDerivativeInstrumentsHeldAtBalanceSheetDateCommodityContractsElectricity" xlink:label="loc_por_VolumeRelatedToDerivativeInstrumentsHeldAtBalanceSheetDateCommodityContractsElectricity_8B8A1DEDA58EC10B8E68EADE7E9402AF" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_CommodityContractsAbstract_5F1B67B503B6CC5F2EACEADE7E944FAD" xlink:to="loc_por_VolumeRelatedToDerivativeInstrumentsHeldAtBalanceSheetDateCommodityContractsElectricity_8B8A1DEDA58EC10B8E68EADE7E9402AF" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_VolumeRelatedToDerivativeInstrumentsAtBalanceSheetDateCommodityContractsNaturalGas" xlink:label="loc_por_VolumeRelatedToDerivativeInstrumentsAtBalanceSheetDateCommodityContractsNaturalGas_9ACE85105E228FF7E5B5EADE7E94BC07" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_CommodityContractsAbstract_5F1B67B503B6CC5F2EACEADE7E944FAD" xlink:to="loc_por_VolumeRelatedToDerivativeInstrumentsAtBalanceSheetDateCommodityContractsNaturalGas_9ACE85105E228FF7E5B5EADE7E94BC07" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_VolumeRelatedtoDerivativeInstrumentsHeldatBalanceSheetDateForeignCurrency" xlink:label="loc_por_VolumeRelatedtoDerivativeInstrumentsHeldatBalanceSheetDateForeignCurrency_F1A18193DA54AABAACB9EADE7E94F667" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_CommodityContractsAbstract_5F1B67B503B6CC5F2EACEADE7E944FAD" xlink:to="loc_por_VolumeRelatedtoDerivativeInstrumentsHeldatBalanceSheetDateForeignCurrency_F1A18193DA54AABAACB9EADE7E94F667" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/PriceRiskManagementDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_PriceRiskManagementAbstract" xlink:label="loc_por_PriceRiskManagementAbstract_23510F91BBEE975DE237B7A3C1FF1C8A" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable" xlink:label="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_EB4C51AD86A753966873B7A3C1FF9CCC" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_PriceRiskManagementAbstract_23510F91BBEE975DE237B7A3C1FF1C8A" xlink:to="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_EB4C51AD86A753966873B7A3C1FF9CCC" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CommodityAxis" xlink:label="loc_por_CommodityAxis_5D68B46D1C77DA632F34B7A3C1FFE424" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_EB4C51AD86A753966873B7A3C1FF9CCC" xlink:to="loc_por_CommodityAxis_5D68B46D1C77DA632F34B7A3C1FFE424" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CommodityDomain" xlink:label="loc_por_CommodityDomain_B251772F2C7439C44C06B7A3C1FF6197" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_CommodityAxis_5D68B46D1C77DA632F34B7A3C1FFE424" xlink:to="loc_por_CommodityDomain_B251772F2C7439C44C06B7A3C1FF6197" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_ElectricityMember" xlink:label="loc_por_ElectricityMember_497E22D1AD84A07332FEB7A3C20FEA11" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_CommodityDomain_B251772F2C7439C44C06B7A3C1FF6197" xlink:to="loc_por_ElectricityMember_497E22D1AD84A07332FEB7A3C20FEA11" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NaturalGasReservesMember" xlink:label="loc_us-gaap_NaturalGasReservesMember_F897951F91B21CBC7F4BB7A3C20F95D5" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_CommodityDomain_B251772F2C7439C44C06B7A3C1FF6197" xlink:to="loc_us-gaap_NaturalGasReservesMember_F897951F91B21CBC7F4BB7A3C20F95D5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeByNatureAxis" xlink:label="loc_us-gaap_DerivativeByNatureAxis_E7A84740F913564183E8B7A3C20FCC76" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_EB4C51AD86A753966873B7A3C1FF9CCC" xlink:to="loc_us-gaap_DerivativeByNatureAxis_E7A84740F913564183E8B7A3C20FCC76" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeNameDomain" xlink:label="loc_us-gaap_DerivativeNameDomain_0584FE8C95B4DB69D865B7A3C20F9E3A" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeByNatureAxis_E7A84740F913564183E8B7A3C20FCC76" xlink:to="loc_us-gaap_DerivativeNameDomain_0584FE8C95B4DB69D865B7A3C20F9E3A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_BalanceSheetLocationAxis" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_B93502A0ABF47D844C75B7A3C20F7F77" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_EB4C51AD86A753966873B7A3C1FF9CCC" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_B93502A0ABF47D844C75B7A3C20F7F77" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_BalanceSheetLocationDomain" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_6CFBC5A4248DBCC9A93FB7A3C20F4A0A" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_B93502A0ABF47D844C75B7A3C20F7F77" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_6CFBC5A4248DBCC9A93FB7A3C20F4A0A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeLineItems" xlink:label="loc_us-gaap_DerivativeLineItems_C11112BFDA0DEB00D6DCB7A3C20F50EC" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_EB4C51AD86A753966873B7A3C1FF9CCC" xlink:to="loc_us-gaap_DerivativeLineItems_C11112BFDA0DEB00D6DCB7A3C20F50EC" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral_52580DE097A33C78962BB7A3C20F5BA9" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_C11112BFDA0DEB00D6DCB7A3C20F50EC" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral_52580DE097A33C78962BB7A3C20F5BA9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeCollateralRightToReclaimCash" xlink:label="loc_us-gaap_DerivativeCollateralRightToReclaimCash_57A43618B7E527594F2FB7A3C20F975B" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_C11112BFDA0DEB00D6DCB7A3C20F50EC" xlink:to="loc_us-gaap_DerivativeCollateralRightToReclaimCash_57A43618B7E527594F2FB7A3C20F975B" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_DerivativeCollateralMasterNettingArrangementsLettersOfCredit" xlink:label="loc_por_DerivativeCollateralMasterNettingArrangementsLettersOfCredit_9B5963E8D8F84C76E3E4B7A3C20F47A2" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_C11112BFDA0DEB00D6DCB7A3C20F50EC" xlink:to="loc_por_DerivativeCollateralMasterNettingArrangementsLettersOfCredit_9B5963E8D8F84C76E3E4B7A3C20F47A2" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_NetGainOrLossRecognizedInStatementOfIncomeOffsetByRegulatoryAccounting" xlink:label="loc_por_NetGainOrLossRecognizedInStatementOfIncomeOffsetByRegulatoryAccounting_41F212D918CB9D10E614B7A3C20FB47A" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_C11112BFDA0DEB00D6DCB7A3C20F50EC" xlink:to="loc_por_NetGainOrLossRecognizedInStatementOfIncomeOffsetByRegulatoryAccounting_41F212D918CB9D10E614B7A3C20FB47A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeNetLiabilityPositionAggregateFairValue" xlink:label="loc_us-gaap_DerivativeNetLiabilityPositionAggregateFairValue_31E79AA1BE4C987C1B7DB7A3C20FF473" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_C11112BFDA0DEB00D6DCB7A3C20F50EC" xlink:to="loc_us-gaap_DerivativeNetLiabilityPositionAggregateFairValue_31E79AA1BE4C987C1B7DB7A3C20FF473" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CollateralAlreadyPostedAggregateFairValue" xlink:label="loc_us-gaap_CollateralAlreadyPostedAggregateFairValue_E26F4FE52A90B6824D65B7A3C20F7D6B" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_C11112BFDA0DEB00D6DCB7A3C20F50EC" xlink:to="loc_us-gaap_CollateralAlreadyPostedAggregateFairValue_E26F4FE52A90B6824D65B7A3C20F7D6B" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CollateralAggregateFairValue" xlink:label="loc_por_CollateralAggregateFairValue_50F474983F0E0C00FADCB7A3C20F6802" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_C11112BFDA0DEB00D6DCB7A3C20F50EC" xlink:to="loc_por_CollateralAggregateFairValue_50F474983F0E0C00FADCB7A3C20F6802" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DepositAssets" xlink:label="loc_us-gaap_DepositAssets_47F782C1E86DEEAFD131B818D56A5EE9" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_C11112BFDA0DEB00D6DCB7A3C20F50EC" xlink:to="loc_us-gaap_DepositAssets_47F782C1E86DEEAFD131B818D56A5EE9" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/PriceRiskManagementNotes" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_PriceRiskManagementAbstract" xlink:label="loc_por_PriceRiskManagementAbstract_93340BE3E2B35021A577EADE7E800372" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock" xlink:label="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_48A56B319F31BC64DCBBEADE7E80A020" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_PriceRiskManagementAbstract_93340BE3E2B35021A577EADE7E800372" xlink:to="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_48A56B319F31BC64DCBBEADE7E80A020" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/PriceRiskManagementPolicies" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_PriceRiskManagementAbstract" xlink:label="loc_por_PriceRiskManagementAbstract_A150A7B5AEFAE5D8853CEADE7E1CE46A" xlink:type="locator" />
    <loc xlink:href="por-20151231.xsd#por_GrossReportingOfPositiveAndNegativeExposuresRelatedToDerivativeInstrumentsPolicyTextBlock" xlink:label="loc_por_GrossReportingOfPositiveAndNegativeExposuresRelatedToDerivativeInstrumentsPolicyTextBlock_ECCED01B50924E6969ABEADE7E1C85C4" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_PriceRiskManagementAbstract_A150A7B5AEFAE5D8853CEADE7E1CE46A" xlink:to="loc_por_GrossReportingOfPositiveAndNegativeExposuresRelatedToDerivativeInstrumentsPolicyTextBlock_ECCED01B50924E6969ABEADE7E1C85C4" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/PriceRiskManagementTables" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_PriceRiskManagementAbstract" xlink:label="loc_por_PriceRiskManagementAbstract_18CEC77B5295FA6A601AAD6051DBADB8" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock" xlink:label="loc_us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock_B4959C15B99151C82D7EAD6051DBFCCE" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_PriceRiskManagementAbstract_18CEC77B5295FA6A601AAD6051DBADB8" xlink:to="loc_us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock_B4959C15B99151C82D7EAD6051DBFCCE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfDerivativeInstrumentsTextBlock" xlink:label="loc_us-gaap_ScheduleOfDerivativeInstrumentsTextBlock_9739B96354EDBE2CD552AD6051DB28E2" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_PriceRiskManagementAbstract_18CEC77B5295FA6A601AAD6051DBADB8" xlink:to="loc_us-gaap_ScheduleOfDerivativeInstrumentsTextBlock_9739B96354EDBE2CD552AD6051DB28E2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfOtherDerivativesNotDesignatedAsHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfOtherDerivativesNotDesignatedAsHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock_AE04B8C3D8148DDD79EFAD6051DB80B6" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_PriceRiskManagementAbstract_18CEC77B5295FA6A601AAD6051DBADB8" xlink:to="loc_us-gaap_ScheduleOfOtherDerivativesNotDesignatedAsHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock_AE04B8C3D8148DDD79EFAD6051DB80B6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfPriceRiskDerivativesTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfPriceRiskDerivativesTableTextBlock_7A6FA8CF3348C09F7845AD6051DB6A85" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_PriceRiskManagementAbstract_18CEC77B5295FA6A601AAD6051DBADB8" xlink:to="loc_us-gaap_ScheduleOfPriceRiskDerivativesTableTextBlock_7A6FA8CF3348C09F7845AD6051DB6A85" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_ScheduleOfConcentrationOfRiskByCounterpartyTableTextBlock" xlink:label="loc_por_ScheduleOfConcentrationOfRiskByCounterpartyTableTextBlock_BB38CC5E3131F7933F12AD6051DBC5D7" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_PriceRiskManagementAbstract_18CEC77B5295FA6A601AAD6051DBADB8" xlink:to="loc_por_ScheduleOfConcentrationOfRiskByCounterpartyTableTextBlock_BB38CC5E3131F7933F12AD6051DBC5D7" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/RegulatoryAssetsAndLiabilities" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetsAndLiabilitiesDisclosureAbstract" xlink:label="loc_us-gaap_RegulatoryAssetsAndLiabilitiesDisclosureAbstract_F71073AB51DAA75D2621EADE7EC63482" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock" xlink:label="loc_us-gaap_ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock_44742B2934B41594F225EADE7EC6405A" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetsAndLiabilitiesDisclosureAbstract_F71073AB51DAA75D2621EADE7EC63482" xlink:to="loc_us-gaap_ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock_44742B2934B41594F225EADE7EC6405A" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/RegulatoryAssetsAndLiabilitiesDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetsAndLiabilitiesDisclosureAbstract" xlink:label="loc_us-gaap_RegulatoryAssetsAndLiabilitiesDisclosureAbstract_3D336D0CBE1F97197AC8A963605885A1" xlink:type="locator" />
    <loc xlink:href="por-20151231.xsd#por_RegulatoryAssetsEarningReturnOtherCategory" xlink:label="loc_por_RegulatoryAssetsEarningReturnOtherCategory_309A70D7BAB953E8BA83A96360584795" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetsAndLiabilitiesDisclosureAbstract_3D336D0CBE1F97197AC8A963605885A1" xlink:to="loc_por_RegulatoryAssetsEarningReturnOtherCategory_309A70D7BAB953E8BA83A96360584795" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_RegulatoryAssetsEarningReturn" xlink:label="loc_por_RegulatoryAssetsEarningReturn_83DBF2E980CB76645B9AA96360589B15" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetsAndLiabilitiesDisclosureAbstract_3D336D0CBE1F97197AC8A963605885A1" xlink:to="loc_por_RegulatoryAssetsEarningReturn_83DBF2E980CB76645B9AA96360589B15" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_RegulatoryAssetsEarningRateOfReturnAtCostOfCapital" xlink:label="loc_por_RegulatoryAssetsEarningRateOfReturnAtCostOfCapital_04CBE3375DDD776A4DA7A9636058C055" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetsAndLiabilitiesDisclosureAbstract_3D336D0CBE1F97197AC8A963605885A1" xlink:to="loc_por_RegulatoryAssetsEarningRateOfReturnAtCostOfCapital_04CBE3375DDD776A4DA7A9636058C055" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_AuthorizedCostOfCapital" xlink:label="loc_por_AuthorizedCostOfCapital_1D801A6EAA020D4E336CA96360584682" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetsAndLiabilitiesDisclosureAbstract_3D336D0CBE1F97197AC8A963605885A1" xlink:to="loc_por_AuthorizedCostOfCapital_1D801A6EAA020D4E336CA96360584682" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_RegulatoryAssetsEarningRateOfReturnByInclusionInRateBase" xlink:label="loc_por_RegulatoryAssetsEarningRateOfReturnByInclusionInRateBase_2C6E74F1EBC3342AB755A96360588154" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetsAndLiabilitiesDisclosureAbstract_3D336D0CBE1F97197AC8A963605885A1" xlink:to="loc_por_RegulatoryAssetsEarningRateOfReturnByInclusionInRateBase_2C6E74F1EBC3342AB755A96360588154" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_RegulatoryAssetsEarningRateOfReturnAtApprovedRate" xlink:label="loc_por_RegulatoryAssetsEarningRateOfReturnAtApprovedRate_74E471A8618C1F4BDEEFA96360587831" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetsAndLiabilitiesDisclosureAbstract_3D336D0CBE1F97197AC8A963605885A1" xlink:to="loc_por_RegulatoryAssetsEarningRateOfReturnAtApprovedRate_74E471A8618C1F4BDEEFA96360587831" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_ApprovedRateForDeferredAccountUnderAmortizationLowEndOfRange" xlink:label="loc_por_ApprovedRateForDeferredAccountUnderAmortizationLowEndOfRange_4CA8A5C930367A4191A9A9636058052F" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetsAndLiabilitiesDisclosureAbstract_3D336D0CBE1F97197AC8A963605885A1" xlink:to="loc_por_ApprovedRateForDeferredAccountUnderAmortizationLowEndOfRange_4CA8A5C930367A4191A9A9636058052F" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_ApprovedRateForDeferredAccountsUnderAmortizationHighEndOfRange" xlink:label="loc_por_ApprovedRateForDeferredAccountsUnderAmortizationHighEndOfRange_3C940362A136850D7895A9636058408E" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetsAndLiabilitiesDisclosureAbstract_3D336D0CBE1F97197AC8A963605885A1" xlink:to="loc_por_ApprovedRateForDeferredAccountsUnderAmortizationHighEndOfRange_3C940362A136850D7895A9636058408E" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/RegulatoryAssetsAndLiabilitiesScheduleOfRegulatoryAssetsAndLiabilitiesDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_RegulatoryAssetsAndLiabilitiesAbstract" xlink:label="loc_por_RegulatoryAssetsAndLiabilitiesAbstract_A01DD63B6559A2C4FC04AEF35B8924AD" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfRegulatoryAssetsTable" xlink:label="loc_us-gaap_ScheduleOfRegulatoryAssetsTable_51E29C746DF5B2FCA72EAEF35B8954BC" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_RegulatoryAssetsAndLiabilitiesAbstract_A01DD63B6559A2C4FC04AEF35B8924AD" xlink:to="loc_us-gaap_ScheduleOfRegulatoryAssetsTable_51E29C746DF5B2FCA72EAEF35B8954BC" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetAxis" xlink:label="loc_us-gaap_RegulatoryAssetAxis_3CCF1666E8851249CF2CAEF35B89257E" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRegulatoryAssetsTable_51E29C746DF5B2FCA72EAEF35B8954BC" xlink:to="loc_us-gaap_RegulatoryAssetAxis_3CCF1666E8851249CF2CAEF35B89257E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetDomain" xlink:label="loc_us-gaap_RegulatoryAssetDomain_4A489516DD833EED61E1AEF35B89084D" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetAxis_3CCF1666E8851249CF2CAEF35B89257E" xlink:to="loc_us-gaap_RegulatoryAssetDomain_4A489516DD833EED61E1AEF35B89084D" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_RegulatoryAssetsCurrentMember" xlink:label="loc_por_RegulatoryAssetsCurrentMember_67090A8A773848E5ADFAAEF35B89CE3A" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetDomain_4A489516DD833EED61E1AEF35B89084D" xlink:to="loc_por_RegulatoryAssetsCurrentMember_67090A8A773848E5ADFAAEF35B89CE3A" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_NoncurrentRegulatoryAssetsMember" xlink:label="loc_por_NoncurrentRegulatoryAssetsMember_6D36FD9671A35AD18EB0AEF35B892F40" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetDomain_4A489516DD833EED61E1AEF35B89084D" xlink:to="loc_por_NoncurrentRegulatoryAssetsMember_6D36FD9671A35AD18EB0AEF35B892F40" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryLiabilityAxis" xlink:label="loc_us-gaap_RegulatoryLiabilityAxis_3600EB935880197807B8AEF35B8989B1" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRegulatoryAssetsTable_51E29C746DF5B2FCA72EAEF35B8954BC" xlink:to="loc_us-gaap_RegulatoryLiabilityAxis_3600EB935880197807B8AEF35B8989B1" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryLiabilityDomain" xlink:label="loc_us-gaap_RegulatoryLiabilityDomain_0E29E6239D3F0EEEECA7AEF35B89255F" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryLiabilityAxis_3600EB935880197807B8AEF35B8989B1" xlink:to="loc_us-gaap_RegulatoryLiabilityDomain_0E29E6239D3F0EEEECA7AEF35B89255F" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_CurrentRegulatoryLiabilitiesMember" xlink:label="loc_por_CurrentRegulatoryLiabilitiesMember_92DC2199272656A30866AEF35B8929D8" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryLiabilityDomain_0E29E6239D3F0EEEECA7AEF35B89255F" xlink:to="loc_por_CurrentRegulatoryLiabilitiesMember_92DC2199272656A30866AEF35B8929D8" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_NoncurrentRegulatoryLiabilitiesMember" xlink:label="loc_por_NoncurrentRegulatoryLiabilitiesMember_05D8608E1BDC9E06A72DAEF35B899D41" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryLiabilityDomain_0E29E6239D3F0EEEECA7AEF35B89255F" xlink:to="loc_por_NoncurrentRegulatoryLiabilitiesMember_05D8608E1BDC9E06A72DAEF35B899D41" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetLineItems" xlink:label="loc_us-gaap_RegulatoryAssetLineItems_7A49B73EA8B864648935AEF35B899B5D" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRegulatoryAssetsTable_51E29C746DF5B2FCA72EAEF35B8954BC" xlink:to="loc_us-gaap_RegulatoryAssetLineItems_7A49B73EA8B864648935AEF35B899B5D" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_RemainingRecoveryPeriodofRegulatoryAssetsPriceRiskManagement" xlink:label="loc_por_RemainingRecoveryPeriodofRegulatoryAssetsPriceRiskManagement_338876F309A10BBC47ACAEF35B891AB3" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetLineItems_7A49B73EA8B864648935AEF35B899B5D" xlink:to="loc_por_RemainingRecoveryPeriodofRegulatoryAssetsPriceRiskManagement_338876F309A10BBC47ACAEF35B891AB3" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_RemainingRecoveryPeriodofRegulatoryAssetDebtIssuanceCosts" xlink:label="loc_por_RemainingRecoveryPeriodofRegulatoryAssetDebtIssuanceCosts_D54B7C5A4E0B317B0969AEF35B893F85" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetLineItems_7A49B73EA8B864648935AEF35B899B5D" xlink:to="loc_por_RemainingRecoveryPeriodofRegulatoryAssetDebtIssuanceCosts_D54B7C5A4E0B317B0969AEF35B893F85" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_RegulatoryAssetsFromPriceRiskManagementActivities" xlink:label="loc_por_RegulatoryAssetsFromPriceRiskManagementActivities_CD03F6E9887CA116F034AEF35B89FBE5" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetLineItems_7A49B73EA8B864648935AEF35B899B5D" xlink:to="loc_por_RegulatoryAssetsFromPriceRiskManagementActivities_CD03F6E9887CA116F034AEF35B89FBE5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent" xlink:label="loc_us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent_61577C80C7C21162E8FFAEF35B89B15C" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetLineItems_7A49B73EA8B864648935AEF35B899B5D" xlink:to="loc_us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent_61577C80C7C21162E8FFAEF35B89B15C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredTaxAssetsRegulatoryAssetsAndLiabilities" xlink:label="loc_us-gaap_DeferredTaxAssetsRegulatoryAssetsAndLiabilities_8C7C7A2855C52805A50FAEF35B89EEC6" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetLineItems_7A49B73EA8B864648935AEF35B899B5D" xlink:to="loc_us-gaap_DeferredTaxAssetsRegulatoryAssetsAndLiabilities_8C7C7A2855C52805A50FAEF35B89EEC6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredFinanceCostsNet" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_DBA72DF109F64DA6E3DDAEF35B89D4A5" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetLineItems_7A49B73EA8B864648935AEF35B899B5D" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_DBA72DF109F64DA6E3DDAEF35B89D4A5" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_Remainingrecoveryperiodofregulatoryassetsdeferredcapitalprojects" xlink:label="loc_por_Remainingrecoveryperiodofregulatoryassetsdeferredcapitalprojects_498E64C72CFE52AEDCD7AEF35B89ACFD" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetLineItems_7A49B73EA8B864648935AEF35B899B5D" xlink:to="loc_por_Remainingrecoveryperiodofregulatoryassetsdeferredcapitalprojects_498E64C72CFE52AEDCD7AEF35B89ACFD" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_DeferredCapitalProject" xlink:label="loc_por_DeferredCapitalProject_C95A7952F45C49191755AEF35B89B9A0" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetLineItems_7A49B73EA8B864648935AEF35B899B5D" xlink:to="loc_por_DeferredCapitalProject_C95A7952F45C49191755AEF35B89B9A0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherDeferredCostsNet" xlink:label="loc_us-gaap_OtherDeferredCostsNet_3BA77E0F1F0EAA247BC5AEF35B8915C3" xlink:type="locator" />
    <presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetLineItems_7A49B73EA8B864648935AEF35B899B5D" xlink:to="loc_us-gaap_OtherDeferredCostsNet_3BA77E0F1F0EAA247BC5AEF35B8915C3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssets" xlink:label="loc_us-gaap_RegulatoryAssets_13BEBC1436D5D926DABEAEF35B897F72" xlink:type="locator" />
    <presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetLineItems_7A49B73EA8B864648935AEF35B899B5D" xlink:to="loc_us-gaap_RegulatoryAssets_13BEBC1436D5D926DABEAEF35B897F72" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_AssetRetirementRemovalCost" xlink:label="loc_por_AssetRetirementRemovalCost_A4A9AC6C1651147EB09CAEF35B8939D1" xlink:type="locator" />
    <presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetLineItems_7A49B73EA8B864648935AEF35B899B5D" xlink:to="loc_por_AssetRetirementRemovalCost_A4A9AC6C1651147EB09CAEF35B8939D1" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_RemainingrefundperiodofregulatoryliabilityTrojandecommissioningactivities" xlink:label="loc_por_RemainingrefundperiodofregulatoryliabilityTrojandecommissioningactivities_DA85B5C0CF6318A81EC4AEF35B897CBF" xlink:type="locator" />
    <presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetLineItems_7A49B73EA8B864648935AEF35B899B5D" xlink:to="loc_por_RemainingrefundperiodofregulatoryliabilityTrojandecommissioningactivities_DA85B5C0CF6318A81EC4AEF35B897CBF" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_Regulatoryliabilitiestrojandecommissioningtrust" xlink:label="loc_por_Regulatoryliabilitiestrojandecommissioningtrust_6C31693D08D461CB0258AEF35B892D85" xlink:type="locator" />
    <presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetLineItems_7A49B73EA8B864648935AEF35B899B5D" xlink:to="loc_por_Regulatoryliabilitiestrojandecommissioningtrust_6C31693D08D461CB0258AEF35B892D85" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetRetirementObligationsNoncurrent" xlink:label="loc_us-gaap_AssetRetirementObligationsNoncurrent_795436C3AF53E0E5EFD0AEF35B89EE3C" xlink:type="locator" />
    <presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetLineItems_7A49B73EA8B864648935AEF35B899B5D" xlink:to="loc_us-gaap_AssetRetirementObligationsNoncurrent_795436C3AF53E0E5EFD0AEF35B89EE3C" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_RegulatoryLiabilitiesOther" xlink:label="loc_por_RegulatoryLiabilitiesOther_755FC8AE20B8FD62386EAEF35B89A6CF" xlink:type="locator" />
    <presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetLineItems_7A49B73EA8B864648935AEF35B899B5D" xlink:to="loc_por_RegulatoryLiabilitiesOther_755FC8AE20B8FD62386EAEF35B89A6CF" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryLiabilities" xlink:label="loc_us-gaap_RegulatoryLiabilities_93966D34D576136040EAAEF35B892F3F" xlink:type="locator" />
    <presentationArc order="16" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetLineItems_7A49B73EA8B864648935AEF35B899B5D" xlink:to="loc_us-gaap_RegulatoryLiabilities_93966D34D576136040EAAEF35B892F3F" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/RegulatoryAssetsAndLiabilitiesTables" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetsAndLiabilitiesDisclosureAbstract" xlink:label="loc_us-gaap_RegulatoryAssetsAndLiabilitiesDisclosureAbstract_08104FA9C212595AAE95EADE7CDCE084" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfRegulatoryAssetsTable" xlink:label="loc_us-gaap_ScheduleOfRegulatoryAssetsTable_AED95D6F42CF61762AAFEADE7CDC0AFA" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetsAndLiabilitiesDisclosureAbstract_08104FA9C212595AAE95EADE7CDCE084" xlink:to="loc_us-gaap_ScheduleOfRegulatoryAssetsTable_AED95D6F42CF61762AAFEADE7CDC0AFA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetAxis" xlink:label="loc_us-gaap_RegulatoryAssetAxis_EFF0C731FCD0B2BCD5C4EADE7CDC2110" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRegulatoryAssetsTable_AED95D6F42CF61762AAFEADE7CDC0AFA" xlink:to="loc_us-gaap_RegulatoryAssetAxis_EFF0C731FCD0B2BCD5C4EADE7CDC2110" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetDomain" xlink:label="loc_us-gaap_RegulatoryAssetDomain_BFEA0108D2156F8601E7EADE7CDCBB2F" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetAxis_EFF0C731FCD0B2BCD5C4EADE7CDC2110" xlink:to="loc_us-gaap_RegulatoryAssetDomain_BFEA0108D2156F8601E7EADE7CDCBB2F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetLineItems" xlink:label="loc_us-gaap_RegulatoryAssetLineItems_FC789DCF777F791DB30CEADE7CDC2662" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRegulatoryAssetsTable_AED95D6F42CF61762AAFEADE7CDC0AFA" xlink:to="loc_us-gaap_RegulatoryAssetLineItems_FC789DCF777F791DB30CEADE7CDC2662" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_ScheduleOfRegulatoryAssetsAndLiabilitiesTableTextBlock" xlink:label="loc_por_ScheduleOfRegulatoryAssetsAndLiabilitiesTableTextBlock_F12A76E331F3E5DF2AC6EADE7CDC6B37" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetLineItems_FC789DCF777F791DB30CEADE7CDC2662" xlink:to="loc_por_ScheduleOfRegulatoryAssetsAndLiabilitiesTableTextBlock_F12A76E331F3E5DF2AC6EADE7CDC6B37" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/ScheduleOfAssetRetirementObligationsDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetRetirementObligationDisclosureAbstract" xlink:label="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_9EE5BAC21405DCD672B5EADE7E1C556D" xlink:type="locator" />
    <loc xlink:href="por-20151231.xsd#por_TrojanDecommissioningActivities" xlink:label="loc_por_TrojanDecommissioningActivities_0FD3107C65A9D5C25974EADE7E1CA12C" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_9EE5BAC21405DCD672B5EADE7E1C556D" xlink:to="loc_por_TrojanDecommissioningActivities_0FD3107C65A9D5C25974EADE7E1CA12C" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_AssetRetirementObligationUtilityPlant" xlink:label="loc_por_AssetRetirementObligationUtilityPlant_4BFF9966A05A9A13DE55EADE7E1C287A" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_9EE5BAC21405DCD672B5EADE7E1C556D" xlink:to="loc_por_AssetRetirementObligationUtilityPlant_4BFF9966A05A9A13DE55EADE7E1C287A" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_AssetRetirementObligationNonUtilityProperty" xlink:label="loc_por_AssetRetirementObligationNonUtilityProperty_4CFDA22F68BBD165BF9BEADE7E1C5EFF" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_9EE5BAC21405DCD672B5EADE7E1C556D" xlink:to="loc_por_AssetRetirementObligationNonUtilityProperty_4CFDA22F68BBD165BF9BEADE7E1C5EFF" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetRetirementObligation" xlink:label="loc_us-gaap_AssetRetirementObligation_1EDDEE580C2FDFE85E95EADE7E1C1785" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_9EE5BAC21405DCD672B5EADE7E1C556D" xlink:to="loc_us-gaap_AssetRetirementObligation_1EDDEE580C2FDFE85E95EADE7E1C1785" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/ScheduleOfChangeInAssetRetirementObligationsDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetRetirementObligationDisclosureAbstract" xlink:label="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_7380FCAE3562E8975CE2EADE7D1813D3" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetRetirementObligation" xlink:label="loc_us-gaap_AssetRetirementObligation_EAF245034DB3D64EB5F2EADE7D183ECF" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_7380FCAE3562E8975CE2EADE7D1813D3" xlink:to="loc_us-gaap_AssetRetirementObligation_EAF245034DB3D64EB5F2EADE7D183ECF" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetRetirementObligationLiabilitiesIncurred" xlink:label="loc_us-gaap_AssetRetirementObligationLiabilitiesIncurred_A253E3CD454713DDF949EADE7D180ED8" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_7380FCAE3562E8975CE2EADE7D1813D3" xlink:to="loc_us-gaap_AssetRetirementObligationLiabilitiesIncurred_A253E3CD454713DDF949EADE7D180ED8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetRetirementObligationLiabilitiesSettled" xlink:label="loc_us-gaap_AssetRetirementObligationLiabilitiesSettled_33763240DF1C60E92D11EADE7D184F91" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_7380FCAE3562E8975CE2EADE7D1813D3" xlink:to="loc_us-gaap_AssetRetirementObligationLiabilitiesSettled_33763240DF1C60E92D11EADE7D184F91" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetRetirementObligationAccretionExpense" xlink:label="loc_us-gaap_AssetRetirementObligationAccretionExpense_3E478F630A9EE59370A8EADE7D18698C" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_7380FCAE3562E8975CE2EADE7D1813D3" xlink:to="loc_us-gaap_AssetRetirementObligationAccretionExpense_3E478F630A9EE59370A8EADE7D18698C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetRetirementObligationRevisionOfEstimate" xlink:label="loc_us-gaap_AssetRetirementObligationRevisionOfEstimate_1776224AA14D64E14B1CEADE7D184568" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_7380FCAE3562E8975CE2EADE7D1813D3" xlink:to="loc_us-gaap_AssetRetirementObligationRevisionOfEstimate_1776224AA14D64E14B1CEADE7D184568" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetRetirementObligation" xlink:label="loc_us-gaap_AssetRetirementObligation_3BFD902082813C90DC63EADE7D1845A3" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_7380FCAE3562E8975CE2EADE7D1813D3" xlink:to="loc_us-gaap_AssetRetirementObligation_3BFD902082813C90DC63EADE7D1845A3" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/StockBasedCompensationExpense" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_0FFA237A9993559318C2EADE7E3AFD0B" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_70203E621D311CE4A7FEEADE7E3AA5C0" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_0FFA237A9993559318C2EADE7E3AFD0B" xlink:to="loc_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_70203E621D311CE4A7FEEADE7E3AA5C0" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/StockBasedCompensationExpenseDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_0058982E2AE27D0C8616B24211986750" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_2F6C097CDEBAF0197604B24211983B08" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_0058982E2AE27D0C8616B24211986750" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_2F6C097CDEBAF0197604B24211983B08" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_5FECAB0EBA83A7375E7BB2421198BEF7" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_2F6C097CDEBAF0197604B24211983B08" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_5FECAB0EBA83A7375E7BB2421198BEF7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_F66C6F1755621621482CB24211982E09" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_5FECAB0EBA83A7375E7BB2421198BEF7" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_F66C6F1755621621482CB24211982E09" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaap_SubsequentEventMember_FD2DA64788D020D41CA0B2421198371D" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_F66C6F1755621621482CB24211982E09" xlink:to="loc_us-gaap_SubsequentEventMember_FD2DA64788D020D41CA0B2421198371D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_489DC72162C9BBE94693B2421198DCD4" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_2F6C097CDEBAF0197604B24211983B08" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_489DC72162C9BBE94693B2421198DCD4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_C1B804D8590749C8E691B2421198A03B" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_489DC72162C9BBE94693B2421198DCD4" xlink:to="loc_us-gaap_ShareBasedCompensation_C1B804D8590749C8E691B2421198A03B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_39510C2F93F678494BC2B2421198EAC3" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_0058982E2AE27D0C8616B24211986750" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_39510C2F93F678494BC2B2421198EAC3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_E8FCF258E679BD57D336B24211988EF5" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_0058982E2AE27D0C8616B24211986750" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_E8FCF258E679BD57D336B24211988EF5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsShareBasedLiabilitiesPaid" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsShareBasedLiabilitiesPaid_9F4A8FC890F818BE659CB2421198D4C5" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_0058982E2AE27D0C8616B24211986750" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsShareBasedLiabilitiesPaid_9F4A8FC890F818BE659CB2421198D4C5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_56A07C0D1272EED1EADDB2421198F9FE" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_0058982E2AE27D0C8616B24211986750" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_56A07C0D1272EED1EADDB2421198F9FE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:label="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_8C49EDDA5CD2D441417EB2421198E28C" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_0058982E2AE27D0C8616B24211986750" xlink:to="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_8C49EDDA5CD2D441417EB2421198E28C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_01B2B53FAAD1E68C6499B24211983B03" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_0058982E2AE27D0C8616B24211986750" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_01B2B53FAAD1E68C6499B24211983B03" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_StockBasedCompensationAttainmentOfPerformanceGoalsThatAllowsVesting" xlink:label="loc_por_StockBasedCompensationAttainmentOfPerformanceGoalsThatAllowsVesting_AC2C5E19ADB6CBF06F31B2421198CAA8" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_0058982E2AE27D0C8616B24211986750" xlink:to="loc_por_StockBasedCompensationAttainmentOfPerformanceGoalsThatAllowsVesting_AC2C5E19ADB6CBF06F31B2421198CAA8" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_StockBasedCompensationForfeitureRate" xlink:label="loc_por_StockBasedCompensationForfeitureRate_F1C6448A35C15AD9C3BEB2421198E906" xlink:type="locator" />
    <presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_0058982E2AE27D0C8616B24211986750" xlink:to="loc_por_StockBasedCompensationForfeitureRate_F1C6448A35C15AD9C3BEB2421198E906" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_4CEC590A700938BACE12B2421198E804" xlink:type="locator" />
    <presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_0058982E2AE27D0C8616B24211986750" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_4CEC590A700938BACE12B2421198E804" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_StockBasedCompensationImpactOnCashFlows" xlink:label="loc_por_StockBasedCompensationImpactOnCashFlows_49BA2C61BCC40E88CAB6B2421198A802" xlink:type="locator" />
    <presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_0058982E2AE27D0C8616B24211986750" xlink:to="loc_por_StockBasedCompensationImpactOnCashFlows_49BA2C61BCC40E88CAB6B2421198A802" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_Performancebasedstockawardpercentageminimum" xlink:label="loc_por_Performancebasedstockawardpercentageminimum_A859048E5B9FA9C2B012B2421198042D" xlink:type="locator" />
    <presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_0058982E2AE27D0C8616B24211986750" xlink:to="loc_por_Performancebasedstockawardpercentageminimum_A859048E5B9FA9C2B012B2421198042D" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_Performancebasedstockawardpercentagemaximum" xlink:label="loc_por_Performancebasedstockawardpercentagemaximum_836140B5D63A252B6780B24211987A1F" xlink:type="locator" />
    <presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_0058982E2AE27D0C8616B24211986750" xlink:to="loc_por_Performancebasedstockawardpercentagemaximum_836140B5D63A252B6780B24211987A1F" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/StockBasedCompensationExpenseRestrictedAndPerformanceStockUnitActivityDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodNetOfForfeituresAbstract" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodNetOfForfeituresAbstract_2A99CBA1690236FDC76DEADE7E621B50" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_93C1AE201B3291F91358EADE7E6209CB" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodNetOfForfeituresAbstract_2A99CBA1690236FDC76DEADE7E621B50" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_93C1AE201B3291F91358EADE7E6209CB" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_F79A834B97B141BAB60BEADE7E62354A" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodNetOfForfeituresAbstract_2A99CBA1690236FDC76DEADE7E621B50" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_F79A834B97B141BAB60BEADE7E62354A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_EE85FA2F0E0D69403322EADE7E620F4E" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodNetOfForfeituresAbstract_2A99CBA1690236FDC76DEADE7E621B50" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_EE85FA2F0E0D69403322EADE7E620F4E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_2F8C45D4522B687DE901EADE7E62B533" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodNetOfForfeituresAbstract_2A99CBA1690236FDC76DEADE7E621B50" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_2F8C45D4522B687DE901EADE7E62B533" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_D17A7D2AF1764F9D19FFEADE7E622F6A" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodNetOfForfeituresAbstract_2A99CBA1690236FDC76DEADE7E621B50" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_D17A7D2AF1764F9D19FFEADE7E622F6A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_CEFC4195A2ED9E254222EADE7E62D6C2" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodNetOfForfeituresAbstract_2A99CBA1690236FDC76DEADE7E621B50" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_CEFC4195A2ED9E254222EADE7E62D6C2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_5F07FFA09ABB028232DAEADE7E6214A5" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodNetOfForfeituresAbstract_2A99CBA1690236FDC76DEADE7E621B50" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_5F07FFA09ABB028232DAEADE7E6214A5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_D9AE0A6A18098FBB29A1EADE7E62D7FA" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodNetOfForfeituresAbstract_2A99CBA1690236FDC76DEADE7E621B50" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_D9AE0A6A18098FBB29A1EADE7E62D7FA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_872BFE26ECFE81888AB7EADE7E62CD5E" xlink:type="locator" />
    <presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodNetOfForfeituresAbstract_2A99CBA1690236FDC76DEADE7E621B50" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_872BFE26ECFE81888AB7EADE7E62CD5E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_46FADA8C2833597F22A4EADE7E62F429" xlink:type="locator" />
    <presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodNetOfForfeituresAbstract_2A99CBA1690236FDC76DEADE7E621B50" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_46FADA8C2833597F22A4EADE7E62F429" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/StockBasedCompensationExpenseRestrictedAndPerformanceStockUnitActivityTables" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodNetOfForfeituresAbstract" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodNetOfForfeituresAbstract_FFEA864CD97A2AA2E7F5EADE7DCCBBB1" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock_0511FFDFA1A8252FA711EADE7DCC3B78" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodNetOfForfeituresAbstract_FFEA864CD97A2AA2E7F5EADE7DCCBBB1" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock_0511FFDFA1A8252FA711EADE7DCC3B78" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_76BB056A2557AC33E666EADE7DCC3833" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodNetOfForfeituresAbstract_FFEA864CD97A2AA2E7F5EADE7DCCBBB1" xlink:to="loc_us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_76BB056A2557AC33E666EADE7DCC3833" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/StockBasedCompensationExpenseScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_850D00E6742F93209590EADE7E9EF735" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_DCC1A2044F9F32716A49EADE7E9EC2A4" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_850D00E6742F93209590EADE7E9EF735" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_DCC1A2044F9F32716A49EADE7E9EC2A4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="loc_us-gaap_PlanNameAxis_3DF172FE5F78826E9DD0EADE7E9E0C85" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_DCC1A2044F9F32716A49EADE7E9EC2A4" xlink:to="loc_us-gaap_PlanNameAxis_3DF172FE5F78826E9DD0EADE7E9E0C85" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_us-gaap_PlanNameDomain_801F36ECEF9CD53DBC12EADE7E9EF2A0" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameAxis_3DF172FE5F78826E9DD0EADE7E9E0C85" xlink:to="loc_us-gaap_PlanNameDomain_801F36ECEF9CD53DBC12EADE7E9EF2A0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AwardDateAxis" xlink:label="loc_us-gaap_AwardDateAxis_B97174482C3F2AB93763EADE7E9E9CAF" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_DCC1A2044F9F32716A49EADE7E9EC2A4" xlink:to="loc_us-gaap_AwardDateAxis_B97174482C3F2AB93763EADE7E9E9CAF" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AwardDateDomain" xlink:label="loc_us-gaap_AwardDateDomain_B8B45F0D9F0D2B614A48EADE7E9E389E" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardDateAxis_B97174482C3F2AB93763EADE7E9E9CAF" xlink:to="loc_us-gaap_AwardDateDomain_B8B45F0D9F0D2B614A48EADE7E9E389E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_A10A9B51D834CF2791CBEADE7E9E0EAB" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_DCC1A2044F9F32716A49EADE7E9EC2A4" xlink:to="loc_us-gaap_AwardTypeAxis_A10A9B51D834CF2791CBEADE7E9E0EAB" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_063BF1C91FA5D89E05A9EADE7E9E9A47" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_A10A9B51D834CF2791CBEADE7E9E0EAB" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_063BF1C91FA5D89E05A9EADE7E9E9A47" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_011FBBC379BC361E9D8CEADE7E9EDC7E" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_DCC1A2044F9F32716A49EADE7E9EC2A4" xlink:to="loc_us-gaap_StatementClassOfStockAxis_011FBBC379BC361E9D8CEADE7E9EDC7E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_8C2769DC818753C29F95EADE7E9E9046" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_011FBBC379BC361E9D8CEADE7E9EDC7E" xlink:to="loc_us-gaap_ClassOfStockDomain_8C2769DC818753C29F95EADE7E9E9046" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_F8ED5BDED90B371EBB3EEADE7E9EF9EB" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_DCC1A2044F9F32716A49EADE7E9EC2A4" xlink:to="loc_us-gaap_RangeAxis_F8ED5BDED90B371EBB3EEADE7E9EF9EB" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_CE6A1D60423A4D567ABCEADE7E9EC3A6" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeAxis_F8ED5BDED90B371EBB3EEADE7E9EF9EB" xlink:to="loc_us-gaap_RangeMember_CE6A1D60423A4D567ABCEADE7E9EC3A6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_VestingAxis" xlink:label="loc_us-gaap_VestingAxis_6A247776E9EC8C852B19EADE7E9E90CF" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_DCC1A2044F9F32716A49EADE7E9EC2A4" xlink:to="loc_us-gaap_VestingAxis_6A247776E9EC8C852B19EADE7E9E90CF" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_VestingDomain" xlink:label="loc_us-gaap_VestingDomain_E04932A90B7BF703862BEADE7E9E1AC3" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VestingAxis_6A247776E9EC8C852B19EADE7E9E90CF" xlink:to="loc_us-gaap_VestingDomain_E04932A90B7BF703862BEADE7E9E1AC3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0854CCACC4C57B102F22EADE7E9E43D0" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_DCC1A2044F9F32716A49EADE7E9EC2A4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0854CCACC4C57B102F22EADE7E9E43D0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_DA21127083DA44E0D0F9EADE7E9E5391" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0854CCACC4C57B102F22EADE7E9E43D0" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_DA21127083DA44E0D0F9EADE7E9E5391" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_NumberofYears" xlink:label="loc_por_NumberofYears_EA045995E242D2E80BD7EADE7E9E6274" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0854CCACC4C57B102F22EADE7E9E43D0" xlink:to="loc_por_NumberofYears_EA045995E242D2E80BD7EADE7E9E6274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum_1B4B896036583D65ED92EADE7E9E0EAF" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0854CCACC4C57B102F22EADE7E9E43D0" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum_1B4B896036583D65ED92EADE7E9E0EAF" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum_DDA4F21068AE2548C6A5EADE7E9ED8E8" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0854CCACC4C57B102F22EADE7E9E43D0" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum_DDA4F21068AE2548C6A5EADE7E9ED8E8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_D3CFEFEE29AAAA7FB625EADE7E9EDD4A" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0854CCACC4C57B102F22EADE7E9E43D0" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_D3CFEFEE29AAAA7FB625EADE7E9EDD4A" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/SummaryOfSignificantAccountingPolicies" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_SummaryOfSignificantAccountingPoliciesAbstract" xlink:label="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_2E246BC2CD9BC6C0C5F8EADE7CFAF0A5" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SignificantAccountingPoliciesTextBlock" xlink:label="loc_us-gaap_SignificantAccountingPoliciesTextBlock_A9C6C65E50E437EFD72FEADE7CFACA83" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_2E246BC2CD9BC6C0C5F8EADE7CFAF0A5" xlink:to="loc_us-gaap_SignificantAccountingPoliciesTextBlock_A9C6C65E50E437EFD72FEADE7CFACA83" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/SummaryOfSignificantAccountingPoliciesDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_SummaryOfSignificantAccountingPoliciesAbstract" xlink:label="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_C2410BC906973773F095CBF529E3B065" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_D44301AB8394282D0040CBF529E3C775" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_C2410BC906973773F095CBF529E3B065" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_D44301AB8394282D0040CBF529E3C775" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_A7FD2E75F41A8CB45799CBF529E3893C" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_D44301AB8394282D0040CBF529E3C775" xlink:to="loc_us-gaap_RangeAxis_A7FD2E75F41A8CB45799CBF529E3893C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_2CC7C58463DC669A3A0BCBF529E3A961" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeAxis_A7FD2E75F41A8CB45799CBF529E3893C" xlink:to="loc_us-gaap_RangeMember_2CC7C58463DC669A3A0BCBF529E3A961" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_21A94663BD3EF393A6E4CBF529E3D793" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_2CC7C58463DC669A3A0BCBF529E3A961" xlink:to="loc_us-gaap_MaximumMember_21A94663BD3EF393A6E4CBF529E3D793" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_8DA1EBEC3EC4C5CFD7A2CBF529E31AE7" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_2CC7C58463DC669A3A0BCBF529E3A961" xlink:to="loc_us-gaap_MinimumMember_8DA1EBEC3EC4C5CFD7A2CBF529E31AE7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryLiabilityAxis" xlink:label="loc_us-gaap_RegulatoryLiabilityAxis_3C342C4EF2E6538B4067CBF529E36F8E" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_D44301AB8394282D0040CBF529E3C775" xlink:to="loc_us-gaap_RegulatoryLiabilityAxis_3C342C4EF2E6538B4067CBF529E36F8E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryLiabilityDomain" xlink:label="loc_us-gaap_RegulatoryLiabilityDomain_0BB0929E2D479EA18589CBF529E31593" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryLiabilityAxis_3C342C4EF2E6538B4067CBF529E36F8E" xlink:to="loc_us-gaap_RegulatoryLiabilityDomain_0BB0929E2D479EA18589CBF529E31593" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_NoncurrentRegulatoryLiabilitiesMember" xlink:label="loc_por_NoncurrentRegulatoryLiabilitiesMember_2F94FF96A69926DDD7E4CBF529E33658" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryLiabilityDomain_0BB0929E2D479EA18589CBF529E31593" xlink:to="loc_por_NoncurrentRegulatoryLiabilitiesMember_2F94FF96A69926DDD7E4CBF529E33658" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetAxis" xlink:label="loc_us-gaap_RegulatoryAssetAxis_F7789BAE289266D21B63CBF529E3F46E" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_D44301AB8394282D0040CBF529E3C775" xlink:to="loc_us-gaap_RegulatoryAssetAxis_F7789BAE289266D21B63CBF529E3F46E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetDomain" xlink:label="loc_us-gaap_RegulatoryAssetDomain_7D96B3B66EAA4BFB3754CBF529E3564E" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetAxis_F7789BAE289266D21B63CBF529E3F46E" xlink:to="loc_us-gaap_RegulatoryAssetDomain_7D96B3B66EAA4BFB3754CBF529E3564E" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_NoncurrentRegulatoryAssetsMember" xlink:label="loc_por_NoncurrentRegulatoryAssetsMember_E9D089DC8518AB7DBCE5CBF529E31367" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetDomain_7D96B3B66EAA4BFB3754CBF529E3564E" xlink:to="loc_por_NoncurrentRegulatoryAssetsMember_E9D089DC8518AB7DBCE5CBF529E31367" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_C5A592CA99E757E40545CBF529E334AB" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_D44301AB8394282D0040CBF529E3C775" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_C5A592CA99E757E40545CBF529E334AB" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_DB00156963392624DAA3CBF529E30C9C" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_C5A592CA99E757E40545CBF529E334AB" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_DB00156963392624DAA3CBF529E30C9C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TypeOfArrangementDomain" xlink:label="loc_us-gaap_TypeOfArrangementDomain_FB8BBA49B61DD0C87DB8CC107D383511" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_DB00156963392624DAA3CBF529E30C9C" xlink:to="loc_us-gaap_TypeOfArrangementDomain_FB8BBA49B61DD0C87DB8CC107D383511" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_D44301AB8394282D0040CBF529E3C775" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherInvestments" xlink:label="loc_us-gaap_OtherInvestments_CE64470B32A3009BD36ECBF529E36471" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_us-gaap_OtherInvestments_CE64470B32A3009BD36ECBF529E36471" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_Businessdaysaftertheinvoicedate" xlink:label="loc_por_Businessdaysaftertheinvoicedate_E701E2DA32EA3A465D7FCBF529E36365" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_por_Businessdaysaftertheinvoicedate_E701E2DA32EA3A465D7FCBF529E36365" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_Daysaftertheduedate" xlink:label="loc_por_Daysaftertheduedate_6C9C9D6250A731126D9ECBF529E3B39C" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_por_Daysaftertheduedate_6C9C9D6250A731126D9ECBF529E3B39C" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_Wholesaleaccountsreceivablewrittenoff" xlink:label="loc_por_Wholesaleaccountsreceivablewrittenoff_9D35CD0BE8F930E85B7ACBF529E36B79" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_por_Wholesaleaccountsreceivablewrittenoff_9D35CD0BE8F930E85B7ACBF529E36B79" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MarginDepositAssets" xlink:label="loc_us-gaap_MarginDepositAssets_070E7C9C97E728512AD4CBF529E33B71" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_us-gaap_MarginDepositAssets_070E7C9C97E728512AD4CBF529E33B71" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LettersOfCreditOutstandingAmount" xlink:label="loc_us-gaap_LettersOfCreditOutstandingAmount_B2BFB0DDB147502D7491CBF529E38E1F" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_us-gaap_LettersOfCreditOutstandingAmount_B2BFB0DDB147502D7491CBF529E38E1F" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_ExpensesrelatedtoCascadeCrossing" xlink:label="loc_por_ExpensesrelatedtoCascadeCrossing_7FE818BDACB95CDC454CCBF529E3104B" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_por_ExpensesrelatedtoCascadeCrossing_7FE818BDACB95CDC454CCBF529E3104B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate" xlink:label="loc_us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate_D718B6A947D38562A3C7CBF529E3DFE3" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate_D718B6A947D38562A3C7CBF529E3DFE3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest" xlink:label="loc_us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest_9E69D16A2ABC7F55B540CBF529E3109B" xlink:type="locator" />
    <presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest_9E69D16A2ABC7F55B540CBF529E3109B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity" xlink:label="loc_us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity_0C8A21ED2C0E7AD62559CBF529E30F43" xlink:type="locator" />
    <presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity_0C8A21ED2C0E7AD62559CBF529E30F43" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ConstructionInProgressGross" xlink:label="loc_us-gaap_ConstructionInProgressGross_11DBE2A2F2B233BC9EFDCBF529E33EA1" xlink:type="locator" />
    <presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_us-gaap_ConstructionInProgressGross_11DBE2A2F2B233BC9EFDCBF529E33EA1" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions" xlink:label="loc_us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions_391AC161503406F09E8FCBF529E333DD" xlink:type="locator" />
    <presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions_391AC161503406F09E8FCBF529E333DD" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress_C12F649A086646E46262CBF529E366F2" xlink:type="locator" />
    <presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress_C12F649A086646E46262CBF529E366F2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MalpracticeLossContingencyLettersOfCreditAndSuretyBonds" xlink:label="loc_us-gaap_MalpracticeLossContingencyLettersOfCreditAndSuretyBonds_0361E2A16B71A46D9495CBF529E3D232" xlink:type="locator" />
    <presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_us-gaap_MalpracticeLossContingencyLettersOfCreditAndSuretyBonds_0361E2A16B71A46D9495CBF529E3D232" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_DepreciationExpenseRate" xlink:label="loc_por_DepreciationExpenseRate_5CFC4EE71A50BFDE9F1FCBF529E32947" xlink:type="locator" />
    <presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_por_DepreciationExpenseRate_5CFC4EE71A50BFDE9F1FCBF529E32947" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_AssetRetirementRemovalCostsIncludedInDepreciationExpense" xlink:label="loc_por_AssetRetirementRemovalCostsIncludedInDepreciationExpense_B67EC512F82041C4BBFACBF529E3B7F4" xlink:type="locator" />
    <presentationArc order="16" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_por_AssetRetirementRemovalCostsIncludedInDepreciationExpense_B67EC512F82041C4BBFACBF529E3B7F4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_A8CD60251D7C61D380D7CBF529E3C727" xlink:type="locator" />
    <presentationArc order="17" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_A8CD60251D7C61D380D7CBF529E3C727" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_8529782EF5501238A0F2CBF529E37BB9" xlink:type="locator" />
    <presentationArc order="18" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_8529782EF5501238A0F2CBF529E37BB9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_23EE4C444E95F0AB0BEFCBF529E36A1A" xlink:type="locator" />
    <presentationArc order="19" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_23EE4C444E95F0AB0BEFCBF529E36A1A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_E13657C98874CFABA331CBF529E34000" xlink:type="locator" />
    <presentationArc order="20" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_E13657C98874CFABA331CBF529E34000" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_A1FEA01F823B03DA74EBCBF529E3AEFB" xlink:type="locator" />
    <presentationArc order="21" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_A1FEA01F823B03DA74EBCBF529E3AEFB" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_7D053CD8C8168DAC5017CBF529E37C7C" xlink:type="locator" />
    <presentationArc order="22" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_7D053CD8C8168DAC5017CBF529E37C7C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_269E80679B71E8A0B04DCBF529E39786" xlink:type="locator" />
    <presentationArc order="23" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_269E80679B71E8A0B04DCBF529E39786" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_PowerCostDeadbandLowerThreshold" xlink:label="loc_por_PowerCostDeadbandLowerThreshold_6A5D49A59BE17FEB41CCCBF529E3E5B1" xlink:type="locator" />
    <presentationArc order="24" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_por_PowerCostDeadbandLowerThreshold_6A5D49A59BE17FEB41CCCBF529E3E5B1" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_PowerCostDeadbandUpperThreshold" xlink:label="loc_por_PowerCostDeadbandUpperThreshold_8BBB5FB54E19B055BF10CBF529E3CE7D" xlink:type="locator" />
    <presentationArc order="25" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_por_PowerCostDeadbandUpperThreshold_8BBB5FB54E19B055BF10CBF529E3CE7D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesApprovedReturnOnEquityPercentage" xlink:label="loc_us-gaap_PublicUtilitiesApprovedReturnOnEquityPercentage_D9396447308B2DCC25DCCBF529E38863" xlink:type="locator" />
    <presentationArc order="26" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_us-gaap_PublicUtilitiesApprovedReturnOnEquityPercentage_D9396447308B2DCC25DCCBF529E38863" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetRetirementObligationsNoncurrent" xlink:label="loc_us-gaap_AssetRetirementObligationsNoncurrent_47776FC1B7A66736527DCBF529E3E7E7" xlink:type="locator" />
    <presentationArc order="27" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_us-gaap_AssetRetirementObligationsNoncurrent_47776FC1B7A66736527DCBF529E3E7E7" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_FranchiseTaxes" xlink:label="loc_por_FranchiseTaxes_F9B5127DECEA581EA09BCBF529E373B2" xlink:type="locator" />
    <presentationArc order="28" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_por_FranchiseTaxes_F9B5127DECEA581EA09BCBF529E373B2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredTaxAssetsRegulatoryAssetsAndLiabilities" xlink:label="loc_us-gaap_DeferredTaxAssetsRegulatoryAssetsAndLiabilities_179F9BE2AC2078C40D19CBF529E3D26B" xlink:type="locator" />
    <presentationArc order="29" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_EA8FA2C794133C2BD8E6CBF529E3F2E3" xlink:to="loc_us-gaap_DeferredTaxAssetsRegulatoryAssetsAndLiabilities_179F9BE2AC2078C40D19CBF529E3D26B" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/SummaryOfSignificantAccountingPoliciesEstimatedAverageServiceLivesDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_SummaryOfSignificantAccountingPoliciesAbstract" xlink:label="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_D73F63E4FFFFAA74AEFCEADE7DC2472C" xlink:type="locator" />
    <loc xlink:href="por-20151231.xsd#por_ProductionExcludingThermalAbstract" xlink:label="loc_por_ProductionExcludingThermalAbstract_9B05A5F5F82627C6632BEADE7DC2CACF" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_D73F63E4FFFFAA74AEFCEADE7DC2472C" xlink:to="loc_por_ProductionExcludingThermalAbstract_9B05A5F5F82627C6632BEADE7DC2CACF" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_EstimatedAverageServiceLifeHydroProductionPlant" xlink:label="loc_por_EstimatedAverageServiceLifeHydroProductionPlant_C35F87C8C956A520A857EADE7DC2BE20" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_ProductionExcludingThermalAbstract_9B05A5F5F82627C6632BEADE7DC2CACF" xlink:to="loc_por_EstimatedAverageServiceLifeHydroProductionPlant_C35F87C8C956A520A857EADE7DC2BE20" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_EstimatedAverageServiceLifeWindProductionPlant" xlink:label="loc_por_EstimatedAverageServiceLifeWindProductionPlant_15EB2E26306EC7D9215AEADE7DC2425A" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_ProductionExcludingThermalAbstract_9B05A5F5F82627C6632BEADE7DC2CACF" xlink:to="loc_por_EstimatedAverageServiceLifeWindProductionPlant_15EB2E26306EC7D9215AEADE7DC2425A" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_EstimatedAverageServiceLivesTransmissionPlant" xlink:label="loc_por_EstimatedAverageServiceLivesTransmissionPlant_237C99196CEFFF6ED006EADE7DC29563" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_D73F63E4FFFFAA74AEFCEADE7DC2472C" xlink:to="loc_por_EstimatedAverageServiceLivesTransmissionPlant_237C99196CEFFF6ED006EADE7DC29563" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_EstimatedAverageServiceLivesDistributionPlant" xlink:label="loc_por_EstimatedAverageServiceLivesDistributionPlant_BA18EE36CC7A381EA1C9EADE7DC25B7E" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_D73F63E4FFFFAA74AEFCEADE7DC2472C" xlink:to="loc_por_EstimatedAverageServiceLivesDistributionPlant_BA18EE36CC7A381EA1C9EADE7DC25B7E" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_EstimatedAverageServiceLivesGeneralPlant" xlink:label="loc_por_EstimatedAverageServiceLivesGeneralPlant_89E8164442C8FFA76630EADE7DC2FBF5" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_D73F63E4FFFFAA74AEFCEADE7DC2472C" xlink:to="loc_por_EstimatedAverageServiceLivesGeneralPlant_89E8164442C8FFA76630EADE7DC2FBF5" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_SummaryOfSignificantAccountingPoliciesAbstract" xlink:label="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_607428E82560044A9844EADE7D0EFBDF" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAndCashEquivalentsPolicyTextBlock" xlink:label="loc_us-gaap_CashAndCashEquivalentsPolicyTextBlock_44B7A1837514B0CED8EBEADE7D0E185D" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_607428E82560044A9844EADE7D0EFBDF" xlink:to="loc_us-gaap_CashAndCashEquivalentsPolicyTextBlock_44B7A1837514B0CED8EBEADE7D0E185D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TradeAndOtherAccountsReceivablePolicy" xlink:label="loc_us-gaap_TradeAndOtherAccountsReceivablePolicy_C5ACEDD61088493FF25FEADE7D0E9140" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_607428E82560044A9844EADE7D0EFBDF" xlink:to="loc_us-gaap_TradeAndOtherAccountsReceivablePolicy_C5ACEDD61088493FF25FEADE7D0E9140" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativesPolicyTextBlock" xlink:label="loc_us-gaap_DerivativesPolicyTextBlock_B1CD5366641CC68038FBEADE7D0E8446" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_607428E82560044A9844EADE7D0EFBDF" xlink:to="loc_us-gaap_DerivativesPolicyTextBlock_B1CD5366641CC68038FBEADE7D0E8446" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy" xlink:label="loc_us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy_FB19E38405DB55B67440EADE7D0E4648" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_607428E82560044A9844EADE7D0EFBDF" xlink:to="loc_us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy_FB19E38405DB55B67440EADE7D0E4648" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OffBalanceSheetCreditExposurePolicyPolicyTextBlock" xlink:label="loc_us-gaap_OffBalanceSheetCreditExposurePolicyPolicyTextBlock_4018064F056476F334F5EADE7D0EC339" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_607428E82560044A9844EADE7D0EFBDF" xlink:to="loc_us-gaap_OffBalanceSheetCreditExposurePolicyPolicyTextBlock_4018064F056476F334F5EADE7D0EC339" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InventoryPolicyTextBlock" xlink:label="loc_us-gaap_InventoryPolicyTextBlock_35E569F7444D2163363CEADE7D0EA7C8" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_607428E82560044A9844EADE7D0EFBDF" xlink:to="loc_us-gaap_InventoryPolicyTextBlock_35E569F7444D2163363CEADE7D0EA7C8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_BF001C9AF0BA56A8A1CDEADE7D0ECDC9" xlink:type="locator" />
    <presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_607428E82560044A9844EADE7D0EFBDF" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_BF001C9AF0BA56A8A1CDEADE7D0ECDC9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AllowanceForFundsUsedDuringConstructionPolicy" xlink:label="loc_us-gaap_AllowanceForFundsUsedDuringConstructionPolicy_370A39458A0010D05EA5EADE7D0E53D1" xlink:type="locator" />
    <presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_607428E82560044A9844EADE7D0EFBDF" xlink:to="loc_us-gaap_AllowanceForFundsUsedDuringConstructionPolicy_370A39458A0010D05EA5EADE7D0E53D1" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryDepreciationAndAmortizationPolicy" xlink:label="loc_us-gaap_RegulatoryDepreciationAndAmortizationPolicy_DD11D7F19AE879ADF243EADE7D0E6C60" xlink:type="locator" />
    <presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_607428E82560044A9844EADE7D0EFBDF" xlink:to="loc_us-gaap_RegulatoryDepreciationAndAmortizationPolicy_DD11D7F19AE879ADF243EADE7D0E6C60" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_DepreciationLivesPolicyTextBlock" xlink:label="loc_por_DepreciationLivesPolicyTextBlock_FDD04AF44CD4434B22B6EADE7D0E897F" xlink:type="locator" />
    <presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_607428E82560044A9844EADE7D0EFBDF" xlink:to="loc_por_DepreciationLivesPolicyTextBlock_FDD04AF44CD4434B22B6EADE7D0E897F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PlantRetirementAndAbandonmentPolicy" xlink:label="loc_us-gaap_PlantRetirementAndAbandonmentPolicy_AF62506EDA6BF7FF1838EADE7D0E542F" xlink:type="locator" />
    <presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_607428E82560044A9844EADE7D0EFBDF" xlink:to="loc_us-gaap_PlantRetirementAndAbandonmentPolicy_AF62506EDA6BF7FF1838EADE7D0E542F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsPolicy" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsPolicy_3BD89D11E04B3ABF4FB3EADE7D0E7F34" xlink:type="locator" />
    <presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_607428E82560044A9844EADE7D0EFBDF" xlink:to="loc_us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsPolicy_3BD89D11E04B3ABF4FB3EADE7D0E7F34" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MarketableSecuritiesPolicy" xlink:label="loc_us-gaap_MarketableSecuritiesPolicy_67A7FD15F7BDD6A3DD0EEADE7D0E0061" xlink:type="locator" />
    <presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_607428E82560044A9844EADE7D0EFBDF" xlink:to="loc_us-gaap_MarketableSecuritiesPolicy_67A7FD15F7BDD6A3DD0EEADE7D0E0061" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesPolicyTextBlock" xlink:label="loc_us-gaap_PublicUtilitiesPolicyTextBlock_CA6611A17F8FEABA44B3EADE7D0EB774" xlink:type="locator" />
    <presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_607428E82560044A9844EADE7D0EFBDF" xlink:to="loc_us-gaap_PublicUtilitiesPolicyTextBlock_CA6611A17F8FEABA44B3EADE7D0EB774" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_PowerCostPolicyTextBlock" xlink:label="loc_por_PowerCostPolicyTextBlock_476A8154BBB544AB31CDEADE7D0EB041" xlink:type="locator" />
    <presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_607428E82560044A9844EADE7D0EFBDF" xlink:to="loc_por_PowerCostPolicyTextBlock_476A8154BBB544AB31CDEADE7D0EB041" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetRetirementObligationsPolicy" xlink:label="loc_us-gaap_AssetRetirementObligationsPolicy_C8824A5D155EECBE3BF1EADE7D181D1D" xlink:type="locator" />
    <presentationArc order="16" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_607428E82560044A9844EADE7D0EFBDF" xlink:to="loc_us-gaap_AssetRetirementObligationsPolicy_C8824A5D155EECBE3BF1EADE7D181D1D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommitmentsAndContingenciesPolicyTextBlock" xlink:label="loc_us-gaap_CommitmentsAndContingenciesPolicyTextBlock_A843A5C3701C2DF4FFB9EADE7D18F0E2" xlink:type="locator" />
    <presentationArc order="17" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_607428E82560044A9844EADE7D0EFBDF" xlink:to="loc_us-gaap_CommitmentsAndContingenciesPolicyTextBlock_A843A5C3701C2DF4FFB9EADE7D18F0E2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PensionAndOtherPostretirementPlansPensionsPolicy" xlink:label="loc_us-gaap_PensionAndOtherPostretirementPlansPensionsPolicy_B5890512CA9C5E1D4DFDEADE7D181CE4" xlink:type="locator" />
    <presentationArc order="18" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_607428E82560044A9844EADE7D0EFBDF" xlink:to="loc_us-gaap_PensionAndOtherPostretirementPlansPensionsPolicy_B5890512CA9C5E1D4DFDEADE7D181CE4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RevenueRecognitionPolicyTextBlock" xlink:label="loc_us-gaap_RevenueRecognitionPolicyTextBlock_8084D3905ED239B2D8B5EADE7D1890C7" xlink:type="locator" />
    <presentationArc order="19" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_607428E82560044A9844EADE7D0EFBDF" xlink:to="loc_us-gaap_RevenueRecognitionPolicyTextBlock_8084D3905ED239B2D8B5EADE7D1890C7" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_FranchiseTaxPolicyTextBlock" xlink:label="loc_por_FranchiseTaxPolicyTextBlock_4E347AB60EC8638C8090EADE7D18FE3A" xlink:type="locator" />
    <presentationArc order="20" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_607428E82560044A9844EADE7D0EFBDF" xlink:to="loc_por_FranchiseTaxPolicyTextBlock_4E347AB60EC8638C8090EADE7D18FE3A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TradeAndOtherAccountsReceivableUnbilledReceivablesPolicy" xlink:label="loc_us-gaap_TradeAndOtherAccountsReceivableUnbilledReceivablesPolicy_1E0EA6D9C08FF3301C88EADE7D183D22" xlink:type="locator" />
    <presentationArc order="21" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_607428E82560044A9844EADE7D0EFBDF" xlink:to="loc_us-gaap_TradeAndOtherAccountsReceivableUnbilledReceivablesPolicy_1E0EA6D9C08FF3301C88EADE7D183D22" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:label="loc_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_622EA109F98317831F8AEADE7D186DC7" xlink:type="locator" />
    <presentationArc order="22" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_607428E82560044A9844EADE7D0EFBDF" xlink:to="loc_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_622EA109F98317831F8AEADE7D186DC7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeTaxPolicyTextBlock" xlink:label="loc_us-gaap_IncomeTaxPolicyTextBlock_4FC569C42DBB761B8F16EADE7D185BB6" xlink:type="locator" />
    <presentationArc order="23" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_607428E82560044A9844EADE7D0EFBDF" xlink:to="loc_us-gaap_IncomeTaxPolicyTextBlock_4FC569C42DBB761B8F16EADE7D185BB6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeTaxUncertaintiesPolicy" xlink:label="loc_us-gaap_IncomeTaxUncertaintiesPolicy_4E746215C58817F44438EADE7D18E3A2" xlink:type="locator" />
    <presentationArc order="24" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_607428E82560044A9844EADE7D0EFBDF" xlink:to="loc_us-gaap_IncomeTaxUncertaintiesPolicy_4E746215C58817F44438EADE7D18E3A2" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_InterestAndPenaltiesRelatedToIncomeTaxesPolicyTextBlock" xlink:label="loc_por_InterestAndPenaltiesRelatedToIncomeTaxesPolicyTextBlock_D4611340677A24F2F7F5EADE7D18E1A5" xlink:type="locator" />
    <presentationArc order="25" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_607428E82560044A9844EADE7D0EFBDF" xlink:to="loc_por_InterestAndPenaltiesRelatedToIncomeTaxesPolicyTextBlock_D4611340677A24F2F7F5EADE7D18E1A5" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/SummaryOfSignificantAccountingPoliciesTables" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_SummaryOfSignificantAccountingPoliciesAbstract" xlink:label="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_C4E69733E277C413B20AEADE7D041500" xlink:type="locator" />
    <loc xlink:href="por-20151231.xsd#por_EstimatedAverageServiceLivesTableTextBlock" xlink:label="loc_por_EstimatedAverageServiceLivesTableTextBlock_BFB0630AC25771FEE21AEADE7D04C2B5" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_SummaryOfSignificantAccountingPoliciesAbstract_C4E69733E277C413B20AEADE7D041500" xlink:to="loc_por_EstimatedAverageServiceLivesTableTextBlock_BFB0630AC25771FEE21AEADE7D04C2B5" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/VariableInterestEntities" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_VariableInterestEntitiesAbstract" xlink:label="loc_por_VariableInterestEntitiesAbstract_82A1B9C009F8A4E74684EADE7E626E1A" xlink:type="locator" />
    <loc xlink:href="por-20151231.xsd#por_VariableinterestentitiesTextBlock" xlink:label="loc_por_VariableinterestentitiesTextBlock_68F367A37B7EE80FA686EADE7E626C15" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_VariableInterestEntitiesAbstract_82A1B9C009F8A4E74684EADE7E626E1A" xlink:to="loc_por_VariableinterestentitiesTextBlock_68F367A37B7EE80FA686EADE7E626C15" xlink:type="arc" />
  </presentationLink>
  <presentationLink xlink:role="http://www.portlandgeneral.com/role/VariableInterestEntitiesDetails" xlink:type="extended">
    <loc xlink:href="por-20151231.xsd#por_VariableInterestEntitiesAbstract" xlink:label="loc_por_VariableInterestEntitiesAbstract_B407C5E1BE8305B58D6AA8612F1E374B" xlink:type="locator" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntitiesTable" xlink:label="loc_dei_EntitiesTable_B83E69B88FC0DDC7D24EA8612F1E0DA0" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_VariableInterestEntitiesAbstract_B407C5E1BE8305B58D6AA8612F1E374B" xlink:to="loc_dei_EntitiesTable_B83E69B88FC0DDC7D24EA8612F1E0DA0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_LegalEntityAxis" xlink:label="loc_dei_LegalEntityAxis_2DF01964589D0565F07CA8612F1E2BA9" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntitiesTable_B83E69B88FC0DDC7D24EA8612F1E0DA0" xlink:to="loc_dei_LegalEntityAxis_2DF01964589D0565F07CA8612F1E2BA9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain_B53AD611CB3A0A120CE2A8612F1E8294" xlink:type="locator" />
    <presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_LegalEntityAxis_2DF01964589D0565F07CA8612F1E2BA9" xlink:to="loc_dei_EntityDomain_B53AD611CB3A0A120CE2A8612F1E8294" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityInformationLineItems" xlink:label="loc_dei_EntityInformationLineItems_970E79BA78B713427F7CA8612F1E3BEC" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntitiesTable_B83E69B88FC0DDC7D24EA8612F1E0DA0" xlink:to="loc_dei_EntityInformationLineItems_970E79BA78B713427F7CA8612F1E3BEC" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssetsAndLiabilitiesNet" xlink:label="loc_us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssetsAndLiabilitiesNet_F800201A1138DC5134A9A8612F1E2164" xlink:type="locator" />
    <presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_VariableInterestEntitiesAbstract_B407C5E1BE8305B58D6AA8612F1E374B" xlink:to="loc_us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssetsAndLiabilitiesNet_F800201A1138DC5134A9A8612F1E2164" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_VariableInterestEntityOwnershipPercentage" xlink:label="loc_us-gaap_VariableInterestEntityOwnershipPercentage_47F8F81316A1CBFF32D4A8612F1EB134" xlink:type="locator" />
    <presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_VariableInterestEntitiesAbstract_B407C5E1BE8305B58D6AA8612F1E374B" xlink:to="loc_us-gaap_VariableInterestEntityOwnershipPercentage_47F8F81316A1CBFF32D4A8612F1EB134" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest" xlink:label="loc_us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest_4558F4D7B3DBDD93224BA8612F1E3851" xlink:type="locator" />
    <presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_VariableInterestEntitiesAbstract_B407C5E1BE8305B58D6AA8612F1E374B" xlink:to="loc_us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest_4558F4D7B3DBDD93224BA8612F1E3851" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions" xlink:label="loc_us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions_90AD8DF63B9A1384A58EA8612F1E86F0" xlink:type="locator" />
    <presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_VariableInterestEntitiesAbstract_B407C5E1BE8305B58D6AA8612F1E374B" xlink:to="loc_us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions_90AD8DF63B9A1384A58EA8612F1E86F0" xlink:type="arc" />
    <loc xlink:href="por-20151231.xsd#por_EstimatedRemainingUsefulLifeOfFacilityAcquired" xlink:label="loc_por_EstimatedRemainingUsefulLifeOfFacilityAcquired_7D376848F0E3E85B6BD3A8612F1E9A97" xlink:type="locator" />
    <presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_por_VariableInterestEntitiesAbstract_B407C5E1BE8305B58D6AA8612F1E374B" xlink:to="loc_por_EstimatedRemainingUsefulLifeOfFacilityAcquired_7D376848F0E3E85B6BD3A8612F1E9A97" xlink:type="arc" />
  </presentationLink>
</linkbase>


