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  <xs:element id="enph_StandardAndExtendedProductWarrantyAccrualCurrentFairValueDisclosure" abstract="false" name="StandardAndExtendedProductWarrantyAccrualCurrentFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="enph_StandardAndExtendedProductWarrantyAccrualFairValueDisclosure" abstract="false" name="StandardAndExtendedProductWarrantyAccrualFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="enph_ConvertibleSeniorNotesDue2026Member" abstract="true" name="ConvertibleSeniorNotesDue2026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="enph_SecuredConvertiblePromissoryNotes2021Member" abstract="true" name="SecuredConvertiblePromissoryNotes2021Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="enph_SecuredConvertiblePromissoryNotes2023Member" abstract="true" name="SecuredConvertiblePromissoryNotes2023Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="enph_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetImpairment" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetImpairment" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="enph_StandardProductWarrantyAccrualChangeInDiscountRatePercent" abstract="false" name="StandardProductWarrantyAccrualChangeInDiscountRatePercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="enph_WarrantyObligationsAtFairValueIncreaseInFairValueLiabilityResultingFromOnePercentagePointIncreaseInProfitElementAndRiskPremium" abstract="false" name="WarrantyObligationsAtFairValueIncreaseInFairValueLiabilityResultingFromOnePercentagePointIncreaseInProfitElementAndRiskPremium" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="enph_WarrantyObligationsAtFairValueDecreaseInFairValueResultingFromOnePercentagePointIncreaseInDiscountRate" abstract="false" name="WarrantyObligationsAtFairValueDecreaseInFairValueResultingFromOnePercentagePointIncreaseInDiscountRate" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="enph_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityChangeInEstimate" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityChangeInEstimate" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="enph_MeasurementInputProfitElementAndRiskPremiumMember" abstract="true" name="MeasurementInputProfitElementAndRiskPremiumMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="enph_RestructuringReserveSettledWithoutCashNet" abstract="false" name="RestructuringReserveSettledWithoutCashNet" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="enph_GeneralAndAdministrativeExpenseAdjusted" abstract="false" name="GeneralAndAdministrativeExpenseAdjusted" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="enph_OtherCountryMember" abstract="true" name="OtherCountryMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="enph_A2026RestructuringPlanMember" abstract="true" name="A2026RestructuringPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
