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  <xs:element id="aep_MaterialsandSuppliesRelatedtoRetiredPlantsMember" abstract="true" name="MaterialsandSuppliesRelatedtoRetiredPlantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="aep_UnderfundedStatusAccumulatedBenefitObligation" abstract="false" name="UnderfundedStatusAccumulatedBenefitObligation" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_RequestedFuelCostDeferral" abstract="false" name="RequestedFuelCostDeferral" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_RecommendedDisallowancefromStafforIntervenors" abstract="false" name="RecommendedDisallowancefromStafforIntervenors" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_AppalachianConsumerRateReliefFundingMember" abstract="true" name="AppalachianConsumerRateReliefFundingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RegulatedJurisdictionsPolicyTextBlock" abstract="false" name="RegulatedJurisdictionsPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_SecuritiesActivityWithinDecommissioningAndSnfTrustsAbstract" abstract="true" name="SecuritiesActivityWithinDecommissioningAndSnfTrustsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_MaximumPotentialLossAbstract" abstract="true" name="MaximumPotentialLossAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_RevenuefromContractswithCustomersAbstract" abstract="true" name="RevenuefromContractswithCustomersAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_AmountOfIncreasedDepreciationExpenseRequested" abstract="false" name="AmountOfIncreasedDepreciationExpenseRequested" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_PreviouslyIncurredCostsDeferralBelowAuthorizedROEBand" abstract="false" name="PreviouslyIncurredCostsDeferralBelowAuthorizedROEBand" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_EquityPayoutsForCareerShareDistributions" abstract="false" name="EquityPayoutsForCareerShareDistributions" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_AverageInterestRateForFundsBorrowed" abstract="false" name="AverageInterestRateForFundsBorrowed" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_PlantRetirementCostsUnrecoveredPlantDoletHillsPowerStationMember" abstract="true" name="PlantRetirementCostsUnrecoveredPlantDoletHillsPowerStationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RequestedAnnualIncrease" abstract="false" name="RequestedAnnualIncrease" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ReclassificationOfKPCoPensionAndOPEBRegulatoryAssetsFromAOCIDomain" abstract="true" name="ReclassificationOfKPCoPensionAndOPEBRegulatoryAssetsFromAOCIDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_MaximumFuturePaymentsforLettersofCreditUnderUncommittedFacilitiesAbstract" abstract="true" name="MaximumFuturePaymentsforLettersofCreditUnderUncommittedFacilitiesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_PaymentTimingAxis" abstract="true" name="PaymentTimingAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_TotalAssetsMember" abstract="true" name="TotalAssetsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_DeferredTaxAssetsLiabilitiesSecuritizedAssets" abstract="false" name="DeferredTaxAssetsLiabilitiesSecuritizedAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_CompetitiveContractedRenewablesMember" abstract="true" name="CompetitiveContractedRenewablesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_PJMCostsandOffsystemSalesMarginSharingMember" abstract="true" name="PJMCostsandOffsystemSalesMarginSharingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_CookNuclearPlantRefuelingOutageLevelizationMember" abstract="true" name="CookNuclearPlantRefuelingOutageLevelizationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_UsGaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstractAbstract" abstract="true" name="UsGaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstractAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_PeriodwithNoChangeinUnrecognizedTaxBenefits" abstract="false" name="PeriodwithNoChangeinUnrecognizedTaxBenefits" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="aep_AverageLoanstoMoneyPool" abstract="false" name="AverageLoanstoMoneyPool" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_PerformanceUnitsMember" abstract="true" name="PerformanceUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_OtherCashDepositsMember" abstract="true" name="OtherCashDepositsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AmortizationOfPensionAndOtherPostretirementBenefitPlansAbstract" abstract="true" name="AmortizationOfPensionAndOtherPostretirementBenefitPlansAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_ReclassificationIntoAccumulatedOtherComprehensiveIncomeDomain" abstract="true" name="ReclassificationIntoAccumulatedOtherComprehensiveIncomeDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RequestedAnnualBaseRateStormLevelRestorationExpense" abstract="false" name="RequestedAnnualBaseRateStormLevelRestorationExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_StockholdersEquityASU201613Adoption" abstract="false" name="StockholdersEquityASU201613Adoption" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_PerformanceUnitsandReinvestedDividendsMember" abstract="true" name="PerformanceUnitsandReinvestedDividendsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AffiliatedDividendsCommonStock" abstract="false" name="AffiliatedDividendsCommonStock" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_TrustAssetsAxis" abstract="true" name="TrustAssetsAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_AdditionalRefundforCurrentYearTaxReformRateChange" abstract="false" name="AdditionalRefundforCurrentYearTaxReformRateChange" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ProceedsForKYOperationsDomain" abstract="true" name="ProceedsForKYOperationsDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_EquityUnitsAnnualDistributionRate" abstract="false" name="EquityUnitsAnnualDistributionRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_AdditionalOngoingCostsforPostDecommissioningStorageofSNF" abstract="false" name="AdditionalOngoingCostsforPostDecommissioningStorageofSNF" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_SettlementAgreementIncreaseRelatedToStormExpense" abstract="false" name="SettlementAgreementIncreaseRelatedToStormExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ReductioninAggregateCommonSharesAuthorizedPerShareIssuedPursuanttoStockOptionsorStockAppreciationRights" abstract="false" name="ReductioninAggregateCommonSharesAuthorizedPerShareIssuedPursuanttoStockOptionsorStockAppreciationRights" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="aep_IncrementalLongTermIncentivePlanGrantsMember" abstract="true" name="IncrementalLongTermIncentivePlanGrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_PreferredStock2Member" abstract="true" name="PreferredStock2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_MaximumInterestRateForFundsLoaned" abstract="false" name="MaximumInterestRateForFundsLoaned" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_UtilityPlantGenerationResources" abstract="false" name="UtilityPlantGenerationResources" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:powerItemType"/>
  <xs:element id="aep_RegulatedGeneratingUnittobeRetiredAbstract" abstract="true" name="RegulatedGeneratingUnittobeRetiredAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_AEPsRatioofOVECDebtMember" abstract="true" name="AEPsRatioofOVECDebtMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AssetRemovalCostsMember" abstract="true" name="AssetRemovalCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_TransmissionOperationsMember" abstract="true" name="TransmissionOperationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ImpairmentChargeDoletHillsPowerStation" abstract="false" name="ImpairmentChargeDoletHillsPowerStation" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_MaximumPercentageofConsolidatedTangibleNetAssets" abstract="false" name="MaximumPercentageofConsolidatedTangibleNetAssets" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_LongTermDebtByTypeOfDebtAndMaturityAbstract" abstract="true" name="LongTermDebtByTypeOfDebtAndMaturityAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_EquityDistributionAgreementMember" abstract="true" name="EquityDistributionAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AuthorizedShortTermBorrowingLimit" abstract="false" name="AuthorizedShortTermBorrowingLimit" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ETTMember" abstract="true" name="ETTMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_FACCreditToCustomers" abstract="false" name="FACCreditToCustomers" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_MoneyPoolParticipantbyCompanyTypeDomain" abstract="true" name="MoneyPoolParticipantbyCompanyTypeDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ScheduleOfEstimatedContributionsAndPaymentsToPensionAndOPEBPlansTextBlock" abstract="false" name="ScheduleOfEstimatedContributionsAndPaymentsToPensionAndOPEBPlansTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_InterestIncomeEarnedForFundsLoanedToUtilityMoneyPoolTableTextBlock" abstract="false" name="InterestIncomeEarnedForFundsLoanedToUtilityMoneyPoolTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_AffiliatedAccountsReceivableContractswithCustomersTableTextBlock" abstract="false" name="AffiliatedAccountsReceivableContractswithCustomersTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_InterestIncomeEarnedOnAdvancesToTheMoneyPool" abstract="false" name="InterestIncomeEarnedOnAdvancesToTheMoneyPool" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_MaturityPeriodTwoMember" abstract="true" name="MaturityPeriodTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RelatedPartyCharitableContribuionstoAEPFoundation" abstract="false" name="RelatedPartyCharitableContribuionstoAEPFoundation" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_SettlementAgreementForgonePurchasedPowerCostsNotRecoverableThroughFACRecovery" abstract="false" name="SettlementAgreementForgonePurchasedPowerCostsNotRecoverableThroughFACRecovery" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_PercentageOfVieManagementFeeReceived" abstract="false" name="PercentageOfVieManagementFeeReceived" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_ReverseCommonStockSplit" abstract="false" name="ReverseCommonStockSplit" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_OtherRegulatoryLiabilitiesBeingPaidMember" abstract="true" name="OtherRegulatoryLiabilitiesBeingPaidMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ProceedsOfMineralRightsSaleMember" abstract="true" name="ProceedsOfMineralRightsSaleMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_FuelAndPurchasedPowerAdjustmentRiderMember" abstract="true" name="FuelAndPurchasedPowerAdjustmentRiderMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_WindGenerationMWs" abstract="false" name="WindGenerationMWs" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:powerItemType"/>
  <xs:element id="aep_ReclamationCompleteDate" abstract="false" name="ReclamationCompleteDate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:gYearItemType"/>
  <xs:element id="aep_DistributionMember" abstract="true" name="DistributionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RevisedRequestedAnnualIncrease" abstract="false" name="RevisedRequestedAnnualIncrease" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_A2021OVECICPARecommendedDisallowance" abstract="false" name="A2021OVECICPARecommendedDisallowance" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ReclassificationIntoAccumulatedOtherComprehensiveIncomeAxis" abstract="true" name="ReclassificationIntoAccumulatedOtherComprehensiveIncomeAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_BasisPointsOverAuthorizedReturnonEquityConsideredExcessEarnings" abstract="false" name="BasisPointsOverAuthorizedReturnonEquityConsideredExcessEarnings" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_SupplementaryInformationAbstract" abstract="true" name="SupplementaryInformationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_StockUnitAccumulationPlanForNonEmployeeDirectorsAbstract" abstract="true" name="StockUnitAccumulationPlanForNonEmployeeDirectorsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_AEPTexasCentralTransitionFundingCoMember" abstract="true" name="AEPTexasCentralTransitionFundingCoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_NewJerseyMember" abstract="true" name="NewJerseyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_DeferredStateIncomeTaxes" abstract="false" name="DeferredStateIncomeTaxes" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ContractedRenewablesGWs" abstract="false" name="ContractedRenewablesGWs" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:energyItemType"/>
  <xs:element id="aep_RockportOffsetRecoveryMember" abstract="true" name="RockportOffsetRecoveryMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_FinanceLeaseLiabilityAxis" abstract="true" name="FinanceLeaseLiabilityAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_TexasMember" abstract="true" name="TexasMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RemeasurementOfExcessADIT" abstract="false" name="RemeasurementOfExcessADIT" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_SettlementAgreementAnnualIncrease" abstract="false" name="SettlementAgreementAnnualIncrease" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_StateIncomeTaxRateChangesMember" abstract="true" name="StateIncomeTaxRateChangesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_LumpSumSalaryPaymentsAndCashSubsidiesMember" abstract="true" name="LumpSumSalaryPaymentsAndCashSubsidiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_EstablishmentOfRegulatoryAsset" abstract="false" name="EstablishmentOfRegulatoryAsset" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_IncomeTaxesTextualsAbstract" abstract="true" name="IncomeTaxesTextualsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_AEPSharePriceforEquityUnitConversion" abstract="false" name="AEPSharePriceforEquityUnitConversion" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="aep_AmountOfIncreaseRelatedToSPPExpenses" abstract="false" name="AmountOfIncreaseRelatedToSPPExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_IndianaMember" abstract="true" name="IndianaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RequestedAnnualRevenueRequirement" abstract="false" name="RequestedAnnualRevenueRequirement" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_March2025Member" abstract="true" name="March2025Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_DerivativesAndHedgingTextualsAbstract" abstract="true" name="DerivativesAndHedgingTextualsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_AllOtherNet" abstract="false" name="AllOtherNet" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_IntervenorRecommendedAnnualIncrease" abstract="false" name="IntervenorRecommendedAnnualIncrease" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_HeldForSaleMember" abstract="true" name="HeldForSaleMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RequestToUpdateSWEPCoGenerationDepreciationRatesMember" abstract="true" name="RequestToUpdateSWEPCoGenerationDepreciationRatesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_RockportPlantUnit2AcquisitionPrice" abstract="false" name="RockportPlantUnit2AcquisitionPrice" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_SpentNuclearFuelStorageCostsRecovery" abstract="false" name="SpentNuclearFuelStorageCostsRecovery" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_AmortizationofCertainSecuritizedAssets" abstract="false" name="AmortizationofCertainSecuritizedAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_AssetRetirementObligationLouisianaMember" abstract="true" name="AssetRetirementObligationLouisianaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_WelshPlantUnits1And3AcceleratedDepreciationMember" abstract="true" name="WelshPlantUnits1And3AcceleratedDepreciationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="aep_PirkeyPowerPlantAndDoletHillsPowerStationMember" abstract="true" name="PirkeyPowerPlantAndDoletHillsPowerStationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_ProceedsOfMineralRightsSaleDomain" abstract="true" name="ProceedsOfMineralRightsSaleDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="aep_A2023MichiganBaseRateCaseMember" abstract="true" name="A2023MichiganBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_FairValueOfDerivativeLiabilitiesSubjectToCrossDefaultProvisions" abstract="false" name="FairValueOfDerivativeLiabilitiesSubjectToCrossDefaultProvisions" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_PurchasedElectricityFuelAndOtherConsumablesUsedForElectricGenerationMember" abstract="true" name="PurchasedElectricityFuelAndOtherConsumablesUsedForElectricGenerationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="aep_RestorationFundingMember" abstract="true" name="RestorationFundingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="aep_AmountsDueFromCustomersForFutureFederalIncomeTaxes" abstract="false" name="AmountsDueFromCustomersForFutureFederalIncomeTaxes" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_NaturalGasContractMember" abstract="true" name="NaturalGasContractMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_TrustedOwnedLifeInsuranceMember" abstract="true" name="TrustedOwnedLifeInsuranceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_A2022RequestedIncreaseInENECRatesSecondFiling" abstract="false" name="A2022RequestedIncreaseInENECRatesSecondFiling" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_LettersOfCreditMember" abstract="true" name="LettersOfCreditMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="aep_TurkGeneratingPlantMember" abstract="true" name="TurkGeneratingPlantMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_EstimatedELGCosts" abstract="false" name="EstimatedELGCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_SecondEligibleCompensationContributionByEmployeePercentage" abstract="false" name="SecondEligibleCompensationContributionByEmployeePercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_ChangesInFairValueAllocatedToRegulatedJurisdiction" abstract="false" name="ChangesInFairValueAllocatedToRegulatedJurisdiction" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_WestVirginiaMember" abstract="true" name="WestVirginiaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ApprovedReturnOnCommonEquityForPriorPeriod" abstract="false" name="ApprovedReturnOnCommonEquityForPriorPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_DoletHillsPowerStationFuelCostsLouisianaMember" abstract="true" name="DoletHillsPowerStationFuelCostsLouisianaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_SecuritizationBondsMember" abstract="true" name="SecuritizationBondsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_SettlementAmountRecoverableForDryCaskNoncurrent" abstract="false" name="SettlementAmountRecoverableForDryCaskNoncurrent" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_NaturalGasExpensesAndPurchasesOfElectricityToBeRecoveredFromCustomersTableTextBlock" abstract="false" name="NaturalGasExpensesAndPurchasesOfElectricityToBeRecoveredFromCustomersTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
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  <xs:element id="aep_RockportPlantDrySorbentInjectionSystemIndianaMember" abstract="true" name="RockportPlantDrySorbentInjectionSystemIndianaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_SubsequentDecommissioningoftheSpentFuelStorageFacility" abstract="false" name="SubsequentDecommissioningoftheSpentFuelStorageFacility" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_ExpensesFromBargingUreaTransloadingAndOtherServices" abstract="false" name="ExpensesFromBargingUreaTransloadingAndOtherServices" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_GuaranteeObligationsCurrentCarryingValueOtherLiabilitiesCurrent" abstract="false" name="GuaranteeObligationsCurrentCarryingValueOtherLiabilitiesCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_ApprovedAnnualRevenueIncreasePriorToRehearing" abstract="false" name="ApprovedAnnualRevenueIncreasePriorToRehearing" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_LoanstoParent" abstract="false" name="LoanstoParent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_FutureMinimumLeasePaymentsforSaleandLeasebackTableTextBlock" abstract="false" name="FutureMinimumLeasePaymentsforSaleandLeasebackTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
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  <xs:element id="aep_RequestedNetIncreaseInOklahomaAnnualRevenues" abstract="false" name="RequestedNetIncreaseInOklahomaAnnualRevenues" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_CarryingAmountInAepGeneratingCompanysAccountsPayableMember" abstract="true" name="CarryingAmountInAepGeneratingCompanysAccountsPayableMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_GainLossOnDispositionOfBusinessNetOfTax" abstract="false" name="GainLossOnDispositionOfBusinessNetOfTax" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_RevenueFromContractWithCustomersNetOfProvisionsForRefundIncludingAssessedTax" abstract="false" name="RevenueFromContractWithCustomersNetOfProvisionsForRefundIncludingAssessedTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_RockFallsWindFacilityMember" abstract="true" name="RockFallsWindFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="aep_AmountCollectedRiderMineCloseOtherAssetsNoncurrent" abstract="false" name="AmountCollectedRiderMineCloseOtherAssetsNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_ApprovedRecoveryUnderRecoveredCosts" abstract="false" name="ApprovedRecoveryUnderRecoveredCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_UnrealizedGainOnForwardCommitmentsMember" abstract="true" name="UnrealizedGainOnForwardCommitmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_OVECPurchasedPowerMember" abstract="true" name="OVECPurchasedPowerMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_PensionAndOpebActivityAxis" abstract="true" name="PensionAndOpebActivityAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_ExcessSO2AllowanceInventoryVirginiaMember" abstract="true" name="ExcessSO2AllowanceInventoryVirginiaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_NonutilityMember" abstract="true" name="NonutilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_DistributionInvestmentRiderMember" abstract="true" name="DistributionInvestmentRiderMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_MaximumValueOfSharesToBeIssuedUnderATMProgram" abstract="false" name="MaximumValueOfSharesToBeIssuedUnderATMProgram" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_VegetationManagementAEPTexasMember" abstract="true" name="VegetationManagementAEPTexasMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_DomesticMember" abstract="true" name="DomesticMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_QualifiedPensionPlansMember" abstract="true" name="QualifiedPensionPlansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_CorporateUnitOwnershipShareOfAnEquityUnit" abstract="false" name="CorporateUnitOwnershipShareOfAnEquityUnit" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_DecommissioningAndLowLevelWasteAccumulationDisposalMember" abstract="true" name="DecommissioningAndLowLevelWasteAccumulationDisposalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_SharesOfCompanyAbstract" abstract="true" name="SharesOfCompanyAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_TexasRetailElectricProviderBadDebtExpenseMember" abstract="true" name="TexasRetailElectricProviderBadDebtExpenseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RockportPlantLitigationMember" abstract="true" name="RockportPlantLitigationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RateBaseMember" abstract="true" name="RateBaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_NorthCentralWindEnergyFacilitiesDomain" abstract="true" name="NorthCentralWindEnergyFacilitiesDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_OtherRetailMember" abstract="true" name="OtherRetailMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AssessedAmountPerNuclearIncident" abstract="false" name="AssessedAmountPerNuclearIncident" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_CardinalPowerPlantMember" abstract="true" name="CardinalPowerPlantMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_FERCMatterAxis" abstract="true" name="FERCMatterAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_AverageBorrowingsfromMoneyPool" abstract="false" name="AverageBorrowingsfromMoneyPool" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ProvisionForRefundNonaffiliated" abstract="false" name="ProvisionForRefundNonaffiliated" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_CookPlantStudyCostsMember" abstract="true" name="CookPlantStudyCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_NetOfTaxAociMember" abstract="true" name="NetOfTaxAociMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_IndianaMichiganPowerCoMember" abstract="true" name="IndianaMichiganPowerCoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_OhioTransmissionCompanyMember" abstract="true" name="OhioTransmissionCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_BenefitPaymentsMember" abstract="true" name="BenefitPaymentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RecommendedEquityCapitalStructure" abstract="false" name="RecommendedEquityCapitalStructure" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="aep_RegulatoryLiabilitiesDomain" abstract="true" name="RegulatoryLiabilitiesDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_A2022RecommendedENECUnderRecoveryDisallowance" abstract="false" name="A2022RecommendedENECUnderRecoveryDisallowance" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_DerivativeNonmonetaryVolumeNotionalAmount" abstract="false" name="DerivativeNonmonetaryVolumeNotionalAmount" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:volumeItemType"/>
  <xs:element id="aep_TotalNoncurrentRegulatoryLiabilitiesMember" abstract="true" name="TotalNoncurrentRegulatoryLiabilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_PaymentWhenPutInServiceMember" abstract="true" name="PaymentWhenPutInServiceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_MinimumInterestRateforFundsLoaned" abstract="false" name="MinimumInterestRateforFundsLoaned" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_PennsylvaniaMember" abstract="true" name="PennsylvaniaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RenewableEnergyFacilitiesMember" abstract="true" name="RenewableEnergyFacilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_ReturnOnCommonEquityMember" abstract="true" name="ReturnOnCommonEquityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AEPTexasInterimTransmissionAndDistributionRatesMember" abstract="true" name="AEPTexasInterimTransmissionAndDistributionRatesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_DeferredGainonSaleofRockportUnit2Member" abstract="true" name="DeferredGainonSaleofRockportUnit2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_BenefitPaymentorReceiptbyTypeAxis" abstract="true" name="BenefitPaymentorReceiptbyTypeAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationInterestCreditingRate" abstract="false" name="DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationInterestCreditingRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_FuelPurchaseContractsMember" abstract="true" name="FuelPurchaseContractsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_SundanceMember" abstract="true" name="SundanceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AmortizationOfGenerationDeferrals" abstract="false" name="AmortizationOfGenerationDeferrals" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_CommitmentsGuaranteesAndContingenciesTextualsAbstract" abstract="true" name="CommitmentsGuaranteesAndContingenciesTextualsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_RegulatoryAssetsAreComprisedAbstract" abstract="true" name="RegulatoryAssetsAreComprisedAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_ProceedsOnSaleOfReceivablesToAepCreditTextBlock" abstract="false" name="ProceedsOnSaleOfReceivablesToAepCreditTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_BillingsFromAepGeneratingCompanyMember" abstract="true" name="BillingsFromAepGeneratingCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ApprovedNetIncreaseInKentuckyAnnualRevenues" abstract="false" name="ApprovedNetIncreaseInKentuckyAnnualRevenues" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ETTInterimTransmissionRatesMember" abstract="true" name="ETTInterimTransmissionRatesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_BillingsFromAepServiceCorporationMember" abstract="true" name="BillingsFromAepServiceCorporationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RelatedPartyRevenueDomain" abstract="true" name="RelatedPartyRevenueDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_NuclearFuelAndDecommissioningTrustsAbstract" abstract="true" name="NuclearFuelAndDecommissioningTrustsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_AmountOfIncreaseRelatedToAnnualDepreciationExpense" abstract="false" name="AmountOfIncreaseRelatedToAnnualDepreciationExpense" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ProposalForDecisionRateIncrease" abstract="false" name="ProposalForDecisionRateIncrease" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_EnhancedServiceReliabilityPlanMember" abstract="true" name="EnhancedServiceReliabilityPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_PensionAndOtherPostretirementPlansAssetsPercentageAbstract" abstract="true" name="PensionAndOtherPostretirementPlansAssetsPercentageAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_FinanceLeaseRightOfUseAssetAfterAccumulatedAmortizationAxis" abstract="true" name="FinanceLeaseRightOfUseAssetAfterAccumulatedAmortizationAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_JVWindFarmsMember" abstract="true" name="JVWindFarmsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AmountofIncreaseRelatedtoAnnualDepreciationRatesduetoProposedInvestments" abstract="false" name="AmountofIncreaseRelatedtoAnnualDepreciationRatesduetoProposedInvestments" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_RockportPlantUnit2Member" abstract="true" name="RockportPlantUnit2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_IncomeTaxesSubjecttoFlowThroughMember" abstract="true" name="IncomeTaxesSubjecttoFlowThroughMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ShareBasedCompensationPerformanceUnitsConvertedtoShares" abstract="false" name="ShareBasedCompensationPerformanceUnitsConvertedtoShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="aep_PurchasedPowerFromOvecTextBlock" abstract="false" name="PurchasedPowerFromOvecTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_RequestedDebtCapitalStructure" abstract="false" name="RequestedDebtCapitalStructure" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="aep_NetUnderRecoveredFuelCosts" abstract="false" name="NetUnderRecoveredFuelCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_PerformanceUnitsAndAepCareerSharesReinvestedDividendsPortionForMember" abstract="true" name="PerformanceUnitsAndAepCareerSharesReinvestedDividendsPortionForMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ApprovedCarryingCharges" abstract="false" name="ApprovedCarryingCharges" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="aep_OklaunionPurchasePowerAgreement" abstract="false" name="OklaunionPurchasePowerAgreement" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_PurchasePriceAllocationofanAcquisitionTableTextBlock" abstract="false" name="PurchasePriceAllocationofanAcquisitionTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_CurrentAssetsMember" abstract="true" name="CurrentAssetsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_LossOnTheExpectedSaleOfKPCo" abstract="false" name="LossOnTheExpectedSaleOfKPCo" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_KPCoInterestInMitchellPlant" abstract="false" name="KPCoInterestInMitchellPlant" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="aep_ComprehensiveIncomeAbstract" abstract="true" name="ComprehensiveIncomeAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_CarryingAmountInAepServiceCorporationsAccountsPayableMember" abstract="true" name="CarryingAmountInAepServiceCorporationsAccountsPayableMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ObligationsUnderOperatingLeasesDomain" abstract="true" name="ObligationsUnderOperatingLeasesDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_OklaunionGeneratingStationUnitNo1Member" abstract="true" name="OklaunionGeneratingStationUnitNo1Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ComponentsOfChangeInPlanAssetsAndBenefitObligationsRecognizedInPretaxAociAbstract" abstract="true" name="ComponentsOfChangeInPlanAssetsAndBenefitObligationsRecognizedInPretaxAociAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_RefundForExcessADITNotSubjectToRateNormalizationRequirements" abstract="false" name="RefundForExcessADITNotSubjectToRateNormalizationRequirements" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_RecommendedDoletHillsFuelDisallowance" abstract="false" name="RecommendedDoletHillsFuelDisallowance" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ReclassificationsToAOCICurrentPeriodNetOfTaxAttributableToParentTax" abstract="false" name="ReclassificationsToAOCICurrentPeriodNetOfTaxAttributableToParentTax" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_MaximumAndMinimumInterestRatesForFundsEitherBorrowedFromOrLoanedToUtilityMoneyPoolTextBlock" abstract="false" name="MaximumAndMinimumInterestRatesForFundsEitherBorrowedFromOrLoanedToUtilityMoneyPoolTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_AdditionalRecognizedExpensesConsistingPrimarilyofDepreciationandVegetationManagement" abstract="false" name="AdditionalRecognizedExpensesConsistingPrimarilyofDepreciationandVegetationManagement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ApprovedRiderToRecoverJanuary2021ThroughSeptember2022" abstract="false" name="ApprovedRiderToRecoverJanuary2021ThroughSeptember2022" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ProposedAdjustmentsDomain" abstract="true" name="ProposedAdjustmentsDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ExpensedRemainingClosedCoalPlant" abstract="false" name="ExpensedRemainingClosedCoalPlant" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_RefundItemDomain" abstract="true" name="RefundItemDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_SoldatWholesaleMWsMember" abstract="true" name="SoldatWholesaleMWsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_LongTermUnderRecoveredFuelCostsOklahomaMember" abstract="true" name="LongTermUnderRecoveredFuelCostsOklahomaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_CookPlantMember" abstract="true" name="CookPlantMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_EstimatedCCRELGCosts" abstract="false" name="EstimatedCCRELGCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_COVID19WestVirginiaMember" abstract="true" name="COVID19WestVirginiaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ReclassificationsToAOCICurrentPeriodNetOfTaxAttributableToParent" abstract="false" name="ReclassificationsToAOCICurrentPeriodNetOfTaxAttributableToParent" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ProceedsForKYOperationsMember" abstract="true" name="ProceedsForKYOperationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_PreTaxNetIncomeReduction" abstract="false" name="PreTaxNetIncomeReduction" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_OtherRegulatoryAssetsBeingRecoveredMember" abstract="true" name="OtherRegulatoryAssetsBeingRecoveredMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AffiliatedLongTermDebtNoncurrent" abstract="false" name="AffiliatedLongTermDebtNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_RecommendedAnnualBaseRateDecrease" abstract="false" name="RecommendedAnnualBaseRateDecrease" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_InterestRateForeignCurrencyHedgesMember" abstract="true" name="InterestRateForeignCurrencyHedgesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_NonutilityMoneyPoolActivityTableTextBlock" abstract="false" name="NonutilityMoneyPoolActivityTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_SummaryOfPerformanceScoresAndPerformanceUnitsEarnedTextBlock" abstract="false" name="SummaryOfPerformanceScoresAndPerformanceUnitsEarnedTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
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  <xs:element id="aep_AEPTHCosinvestmentinETTandTransourceEnergyMember" abstract="true" name="AEPTHCosinvestmentinETTandTransourceEnergyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="aep_NuclearIncidentLiabilityMember" abstract="true" name="NuclearIncidentLiabilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_CarryingAmountAndClassificationOfVariableInterestInAccountsPayableTextBlock" abstract="false" name="CarryingAmountAndClassificationOfVariableInterestInAccountsPayableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_TotalBasisPointBandForAuthorizedReturnOnEquity" abstract="false" name="TotalBasisPointBandForAuthorizedReturnOnEquity" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_InfrastructureMember" abstract="true" name="InfrastructureMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_MiningAreaDomain" abstract="true" name="MiningAreaDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_A2022RecommendedDisallowance" abstract="false" name="A2022RecommendedDisallowance" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_PreviouslyCollectedRatesSubjecttoReconciliationMember" abstract="true" name="PreviouslyCollectedRatesSubjecttoReconciliationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_TargetAssetAllocationsTextBlock" abstract="false" name="TargetAssetAllocationsTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_OrganizationAndSummaryOfSignificantAccountingPoliciesTextualsAbstract" abstract="true" name="OrganizationAndSummaryOfSignificantAccountingPoliciesTextualsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_LiabilityCoverageUnderPriceAndersonAct" abstract="false" name="LiabilityCoverageUnderPriceAndersonAct" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_RegulatoryAssetReturnDisclosureAxis" abstract="true" name="RegulatoryAssetReturnDisclosureAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_VegetationManagementTexasMember" abstract="true" name="VegetationManagementTexasMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_BargingUreaTransloadingAndOtherServicesTableTextBlock" abstract="false" name="BargingUreaTransloadingAndOtherServicesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="aep_ReclassificationOfKPCoPensionAndOPEBRegulatoryAssetsFromAOCIMember" abstract="true" name="ReclassificationOfKPCoPensionAndOPEBRegulatoryAssetsFromAOCIMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_PhasedInAnnualIncrease2023" abstract="false" name="PhasedInAnnualIncrease2023" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_NCWFMember" abstract="true" name="NCWFMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_DepreciationDepletionandAmortizationUnregulatedTableTextBlock" abstract="false" name="DepreciationDepletionandAmortizationUnregulatedTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_PensionPaymentsMember" abstract="true" name="PensionPaymentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_CapitalLeasePaymentsMade" abstract="false" name="CapitalLeasePaymentsMade" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_PercentageOfShortTermBorrowingNeedsInExcessOfThirdPartyFinancings" abstract="false" name="PercentageOfShortTermBorrowingNeedsInExcessOfThirdPartyFinancings" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_RockportPlantUnit2AcceleratedDepreciationForLeaseholdImprovementsMember" abstract="true" name="RockportPlantUnit2AcceleratedDepreciationForLeaseholdImprovementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_SupplementalInformationRelatedtoLeasesAbstract" abstract="true" name="SupplementalInformationRelatedtoLeasesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_AnticipatedAfterTaxLossRangeUpper" abstract="false" name="AnticipatedAfterTaxLossRangeUpper" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_TransmissionAndDistributionCompaniesMember" abstract="true" name="TransmissionAndDistributionCompaniesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_OtherVariousExpensesMember" abstract="true" name="OtherVariousExpensesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_IntervenorRecommendedWACC" abstract="false" name="IntervenorRecommendedWACC" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_IncomeTaxesNetMember" abstract="true" name="IncomeTaxesNetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_MaintenanceExpenseMember" abstract="true" name="MaintenanceExpenseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_VegetationManagementMember" abstract="true" name="VegetationManagementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RegulatedStatusAxis" abstract="true" name="RegulatedStatusAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_EquityunitsMember" abstract="true" name="EquityunitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_A2021RequestedIncreaseInENECRates" abstract="false" name="A2021RequestedIncreaseInENECRates" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_COVID19VirginiaMember" abstract="true" name="COVID19VirginiaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AllowanceForEquityFundsUsedDuringConstructionTableTextBlock" abstract="false" name="AllowanceForEquityFundsUsedDuringConstructionTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_ImpactOfCashFlowHedgesOnBalanceSheetTextBlock" abstract="false" name="ImpactOfCashFlowHedgesOnBalanceSheetTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_SabineMiningCoMember" abstract="true" name="SabineMiningCoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_EquityPayoutsForPerformanceUnits" abstract="false" name="EquityPayoutsForPerformanceUnits" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_RiskManagementCommodityContractsMember" abstract="true" name="RiskManagementCommodityContractsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
</xs:schema>
