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  <xs:element id="enph_ChangeInContractWithCustomerAssetRollForward" abstract="true" name="ChangeInContractWithCustomerAssetRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="enph_PaymentsToAcquireDebtSecurities" abstract="false" name="PaymentsToAcquireDebtSecurities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="enph_ContractWithCustomerLiabilityIncreaseFromCashReceipts" abstract="false" name="ContractWithCustomerLiabilityIncreaseFromCashReceipts" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="enph_ProductReplacementCostsRelatedToEnphaseIQBatterySystemsMember" abstract="true" name="ProductReplacementCostsRelatedToEnphaseIQBatterySystemsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="enph_StandardAndExtendedProductWarrantyAccrualCurrentFairValueDisclosure" abstract="false" name="StandardAndExtendedProductWarrantyAccrualCurrentFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="enph_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpectedToVestIntrinsicValueValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpectedToVestIntrinsicValueValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="enph_MeasurementInputProfitElementAndRiskPremiumMember" abstract="true" name="MeasurementInputProfitElementAndRiskPremiumMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="enph_GreenComNetworksAGMember" abstract="true" name="GreenComNetworksAGMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="enph_DebtConversionResidual" abstract="false" name="DebtConversionResidual" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="enph_InternationalMember" abstract="true" name="InternationalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="enph_DebtInstrumentRemainingDiscountAmortizationPeriod" abstract="false" name="DebtInstrumentRemainingDiscountAmortizationPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="enph_SharesIssuedWarrantsUnwound" abstract="false" name="SharesIssuedWarrantsUnwound" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="enph_DebtInstrumentConvertibleBusinessDayPeriodAfterMeasurementPeriod" abstract="false" name="DebtInstrumentConvertibleBusinessDayPeriodAfterMeasurementPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="enph_RangeThreeMember" abstract="true" name="RangeThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="enph_ConvertibleSeniorNotesDue2028Member" abstract="true" name="ConvertibleSeniorNotesDue2028Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="enph_ExpeditedFreightCostsAndReplacementCostsMember" abstract="true" name="ExpeditedFreightCostsAndReplacementCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="enph_LaborReimbursementRateMember" abstract="true" name="LaborReimbursementRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="enph_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" abstract="false" name="LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="enph_ConvertibleSeniorNotesDue2025Member" abstract="true" name="ConvertibleSeniorNotesDue2025Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="enph_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpectedToVestOutstandingNumber" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpectedToVestOutstandingNumber" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="enph_AccruedFreightCosts" abstract="false" name="AccruedFreightCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="enph_ChangeInContractWithCustomerLiabilityRollForward" abstract="true" name="ChangeInContractWithCustomerLiabilityRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="enph_ProductWarrantyObligationsMeasurementInput" abstract="false" name="ProductWarrantyObligationsMeasurementInput" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="enph_PurchaseOfPropertyAndEquipmentThroughTenantImprovementAllowance" abstract="false" name="PurchaseOfPropertyAndEquipmentThroughTenantImprovementAllowance" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="enph_ContractWithCustomerAssetAmountRecognized" abstract="false" name="ContractWithCustomerAssetAmountRecognized" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="enph_ProductWarrantyAccrualAccretionExpense" abstract="false" name="ProductWarrantyAccrualAccretionExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="enph_StandardAndExtendedProductWarrantyAccrualNoncurrentFairValueDisclosure" abstract="false" name="StandardAndExtendedProductWarrantyAccrualNoncurrentFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="enph_ContractWithCustomerAssetNewContractAdditions" abstract="false" name="ContractWithCustomerAssetNewContractAdditions" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="enph_ChangeInWarrantyPeriodMember" abstract="true" name="ChangeInWarrantyPeriodMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="enph_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisIncreaseDecreaseInOther" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisIncreaseDecreaseInOther" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="enph_ProductReplacementCostsRelatedToOtherProductsMember" abstract="true" name="ProductReplacementCostsRelatedToOtherProductsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="enph_PostCombinationExpenseAccrualAccruedLiabilitiesMember" abstract="true" name="PostCombinationExpenseAccrualAccruedLiabilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="enph_PriorGenerationProductsMember" abstract="true" name="PriorGenerationProductsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="enph_StandardAndExtendedProductWarrantyAccrualOtherPeriodIncreaseDecrease" abstract="false" name="StandardAndExtendedProductWarrantyAccrualOtherPeriodIncreaseDecrease" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="enph_PrivatelyHeldCompanyMember" abstract="true" name="PrivatelyHeldCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="enph_StandardProductWarrantyAccrualChangeInDiscountRate" abstract="false" name="StandardProductWarrantyAccrualChangeInDiscountRate" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="enph_StandardAndExtendedProductWarrantyAccrualFairValueDisclosure" abstract="false" name="StandardAndExtendedProductWarrantyAccrualFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="enph_DebtInstrumentConvertibleMeasurementPeriodPercentageOfStockPriceTrigger" abstract="false" name="DebtInstrumentConvertibleMeasurementPeriodPercentageOfStockPriceTrigger" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="enph_DebtInstrumentRemainingExpectedLife" abstract="false" name="DebtInstrumentRemainingExpectedLife" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="enph_DebtIssuanceCostsAllocatedToCapital" abstract="false" name="DebtIssuanceCostsAllocatedToCapital" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="enph_CorporateBondSecuritiesAndNoteSecuritiesMember" abstract="true" name="CorporateBondSecuritiesAndNoteSecuritiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="enph_GovernmentGrantsPolicyTextBlock" abstract="false" name="GovernmentGrantsPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="enph_ConvertibleSeniorNotesDue2023Member" abstract="true" name="ConvertibleSeniorNotesDue2023Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="enph_WriteOffOfDebtDiscount" abstract="false" name="WriteOffOfDebtDiscount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="enph_DebtSecuritiesAvailableForSaleAmortizedCostMaturityAllocatedAndSingleMaturityDateAfterYearOneThroughThree" abstract="false" name="DebtSecuritiesAvailableForSaleAmortizedCostMaturityAllocatedAndSingleMaturityDateAfterYearOneThroughThree" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="enph_ConvertibleNotesHedgeTransactionOptionsOutstanding" abstract="false" name="ConvertibleNotesHedgeTransactionOptionsOutstanding" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="enph_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisWarrantiesIssued" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisWarrantiesIssued" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="enph_IncreaseDecreaseInWarrantyObligations" abstract="false" name="IncreaseDecreaseInWarrantyObligations" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="enph_DebtSecuritiesAvailableForSaleFairValueMaturityAllocatedAndSingleMaturityDateAfterYearOneThroughThree" abstract="false" name="DebtSecuritiesAvailableForSaleFairValueMaturityAllocatedAndSingleMaturityDateAfterYearOneThroughThree" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="enph_EmbeddedDerivativeHostContract" abstract="false" name="EmbeddedDerivativeHostContract" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="enph_WarrantyObligationsAtFairValueIncreaseInFairValueResultingFromOnePercentagePointDecreaseInDiscountRate" abstract="false" name="WarrantyObligationsAtFairValueIncreaseInFairValueResultingFromOnePercentagePointDecreaseInDiscountRate" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="enph_WarrantyVariableDomain" abstract="true" name="WarrantyVariableDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
</xs:schema>
