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  <xsd:element id="ens_StockPriceUponIssuanceOfConvertibleNotes" name="StockPriceUponIssuanceOfConvertibleNotes" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ens_TechnologyandCustomerRelationshipsMember" name="TechnologyandCustomerRelationshipsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ens_TradingDays" name="TradingDays" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ens_TwoThousandAndElevenCreditFacilityMember" name="TwoThousandAndElevenCreditFacilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>


