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  <xsd:element id="enph_FairValueMeasurementwithUnobservableInputsReconciliationsRecurringBasisLiabilityAdjustments" name="FairValueMeasurementwithUnobservableInputsReconciliationsRecurringBasisLiabilityAdjustments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="enph_FairValueMeasurementwithUnobservableInputsReconciliationsRecurringBasisLiabilityChangeinEstimate" name="FairValueMeasurementwithUnobservableInputsReconciliationsRecurringBasisLiabilityChangeinEstimate" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_FirstAndSecondGenerationMember" name="FirstAndSecondGenerationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_FourthGenerationMember" name="FourthGenerationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_GeneralDurationOfEmployeeStockPurchasePlan" name="GeneralDurationOfEmployeeStockPurchasePlan" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_HerculesTechnologyGrowthCapitalIncMember" name="HerculesTechnologyGrowthCapitalIncMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_IncomeTaxReconciliationNondeductibleAndNontaxableExpenseOther" name="IncomeTaxReconciliationNondeductibleAndNontaxableExpenseOther" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_IncomeTaxesLineItems" name="IncomeTaxesLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_IncomeTaxesTable" name="IncomeTaxesTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_IncreaseInCommonStockSharesReservedForFutureIssuancePercentage" name="IncreaseInCommonStockSharesReservedForFutureIssuancePercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_IntangibleAssetsAccumulatedAmortization" name="IntangibleAssetsAccumulatedAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="enph_InternationalMember" name="InternationalMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_IrsLimitationForEmployeesRightToAcquireClassCommonStockUnderEspp" name="IrsLimitationForEmployeesRightToAcquireClassCommonStockUnderEspp" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_KpcbHoldingsIncMember" name="KpcbHoldingsIncMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_LargestCustomerAccountingForMostRevenueMember" name="LargestCustomerAccountingForMostRevenueMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_LineofCreditFacilityEndofTermFee" name="LineofCreditFacilityEndofTermFee" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="enph_LineofCreditFacilityInterestOnlyPeriod" name="LineofCreditFacilityInterestOnlyPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_LondonInterbankOfferedRateLiborOrBaseRateMember" name="LondonInterbankOfferedRateLiborOrBaseRateMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_LongTermDebtTextualAbstract" name="LongTermDebtTextualAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_MicroinverterWarrantiesIssuedinPeriodOneMember" name="MicroinverterWarrantiesIssuedinPeriodOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_MicroinverterWarrantiesIssuedinPeriodTwoMember" name="MicroinverterWarrantiesIssuedinPeriodTwoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_NetRevenueMember" name="NetRevenueMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_NextPhaseSolarInc.Member" name="NextPhaseSolarInc.Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_NumberOfCustomersConsideredToGiveRiseToConcentrationRisk" name="NumberOfCustomersConsideredToGiveRiseToConcentrationRisk" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_NumberofUnitsSold" name="NumberofUnitsSold" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_OtherCountryMember" name="OtherCountryMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_OtherEstimatedOfferingCosts" name="OtherEstimatedOfferingCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="enph_PercentofCustomersUsingPerformanceTrackingSystem" name="PercentofCustomersUsingPerformanceTrackingSystem" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_ProceedsfromIssuanceofCommonStockEmployeeStockPurchasePlan" name="ProceedsfromIssuanceofCommonStockEmployeeStockPurchasePlan" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="enph_ProductWarrantyAccrualAccretionExpense" name="ProductWarrantyAccrualAccretionExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="enph_ProductWarrantyAccrualFairValueAdjustment" name="ProductWarrantyAccrualFairValueAdjustment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="enph_ProductWarrantyEstimatedFailureRatePeriodBetweenProductSaleandInstallation" name="ProductWarrantyEstimatedFailureRatePeriodBetweenProductSaleandInstallation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_ProductWarrantyEstimatedFailureRatePeriodBetweenProductSaleandStartofMonitoring" name="ProductWarrantyEstimatedFailureRatePeriodBetweenProductSaleandStartofMonitoring" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_ProductWarrantyExpenseIncreaseDecreaseinWarrantyExpenseDuetoChangesinWarrantyVariables" name="ProductWarrantyExpenseIncreaseDecreaseinWarrantyExpenseDuetoChangesinWarrantyVariables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="enph_ProductWarrantyExpenseIncreaseDecreaseinWarrantyExpenseDuetoChangesinWarrantyVariablesNet" name="ProductWarrantyExpenseIncreaseDecreaseinWarrantyExpenseDuetoChangesinWarrantyVariablesNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="enph_ProductWarrantyTerm" name="ProductWarrantyTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_RangeFiveMember" name="RangeFiveMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_RangeFourMember" name="RangeFourMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_RangeOneMember" name="RangeOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_RangeThreeMember" name="RangeThreeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_RangeTwoMember" name="RangeTwoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_ReclassificationofPreferredStockWarrantLiability" name="ReclassificationofPreferredStockWarrantLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="enph_RelatedPartyOwnershipPercentageOfCompany" name="RelatedPartyOwnershipPercentageOfCompany" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="enph_ReplacementCostMember" name="ReplacementCostMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_RevenueNetPercentage" name="RevenueNetPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_RevenueRecognitionRecognitionPeriod" name="RevenueRecognitionRecognitionPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_SecondGenerationProductsMember" name="SecondGenerationProductsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_SecondLargestCustomerAccountingForMostRevenueMember" name="SecondLargestCustomerAccountingForMostRevenueMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_SecondandThirdGenerationMember" name="SecondandThirdGenerationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_ShareBasedCompensationArrangementByShareBasedPaymentAwardEvergreenShares" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEvergreenShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="enph_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationInYears" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationInYears" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_ShareBasedCompensationArrangementByShareBasedPaymentAwardLookBackFeaturePeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardLookBackFeaturePeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingBasisForDeterminingAggregateIntrinsicValueCompanysSharePricePerShare" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingBasisForDeterminingAggregateIntrinsicValueCompanysSharePricePerShare" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant" />
  <xsd:element id="enph_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedIntrinsicValueValue" name="SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedIntrinsicValueValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="enph_ShippingCostMember" name="ShippingCostMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_StandardProductWarrantyAccrualCurrentFairValueDisclosure" name="StandardProductWarrantyAccrualCurrentFairValueDisclosure" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="enph_StandardProductWarrantyAccrualNoncurrentFairValueDisclosure" name="StandardProductWarrantyAccrualNoncurrentFairValueDisclosure" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="enph_StockIssuedDuringPeriodShareConversionOfConvertiblePreferredStockIntoCommonStock" name="StockIssuedDuringPeriodShareConversionOfConvertiblePreferredStockIntoCommonStock" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_StockIssuedDuringPeriodSharesConversionOfConvertibleSecuritiesAndPaidInKindInterest" name="StockIssuedDuringPeriodSharesConversionOfConvertibleSecuritiesAndPaidInKindInterest" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="enph_StockIssuedDuringPeriodValueConversionOfConvertiblePreferredStockInToCommonStock" name="StockIssuedDuringPeriodValueConversionOfConvertiblePreferredStockInToCommonStock" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_ThirdGenerationProductsMember" name="ThirdGenerationProductsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_ThirdLargestCustomerAccountingForMostRevenueMember" name="ThirdLargestCustomerAccountingForMostRevenueMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_ThirdandFourthGenerationMember" name="ThirdandFourthGenerationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_TwoThousandAndElevenPlanMember" name="TwoThousandAndElevenPlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_TwoThousandSixPlanMember" name="TwoThousandSixPlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_UnderwritersDiscountsAndCommissions" name="UnderwritersDiscountsAndCommissions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="enph_WarrantyObligationsatFairValueDecreaseinFairValueResultingfromOnePercentagePointIncreaseinDiscountRate" name="WarrantyObligationsatFairValueDecreaseinFairValueResultingfromOnePercentagePointIncreaseinDiscountRate" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="enph_WarrantyObligationsatFairValueIncreaseinFairValueResultingfromOnePercentagePointDecreaseinDiscountRate" name="WarrantyObligationsatFairValueIncreaseinFairValueResultingfromOnePercentagePointDecreaseinDiscountRate" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_WarrantyVariableAxis" name="WarrantyVariableAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_WarrantyVariableDomain" name="WarrantyVariableDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_WellsFargoBankMember" name="WellsFargoBankMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
