<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<xsd:schema attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://enphase.com/20191231" xmlns:enph="http://enphase.com/20191231" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:us-types="http://fasb.org/us-types/2019-01-31" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <xsd:import namespace="http://fasb.org/srt-types/2019-01-31" schemaLocation="http://xbrl.fasb.org/srt/2019/elts/srt-types-2019-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/srt/2019-01-31" schemaLocation="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-gaap/2019-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-roles/2019-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2019/elts/us-roles-2019-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-types/2019-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2019/elts/us-types-2019-01-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" schemaLocation="http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/role/net" schemaLocation="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" />
  <xsd:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/country/2017-01-31" schemaLocation="https://xbrl.sec.gov/country/2017/country-2017-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/currency/2019-01-31" schemaLocation="https://xbrl.sec.gov/currency/2019/currency-2019-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/dei/2019-01-31" schemaLocation="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/exch/2019-01-31" schemaLocation="https://xbrl.sec.gov/exch/2019/exch-2019-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/invest/2013-01-31" schemaLocation="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/naics/2017-01-31" schemaLocation="http://xbrl.sec.gov/naics/2017/naics-2017-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/sic/2011-01-31" schemaLocation="http://xbrl.sec.gov/sic/2011/sic-2011-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/stpr/2018-01-31" schemaLocation="https://xbrl.sec.gov/stpr/2018/stpr-2018-01-31.xsd" />
  <xsd:annotation>
    <xsd:appinfo>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="enph-20191231_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="enph-20191231_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="enph-20191231_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="enph-20191231_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple" />
      <link:roleType id="AccruedLiabilities" roleURI="http://enphase.com/role/AccruedLiabilities">
        <link:definition>2114100 - Disclosure - ACCRUED LIABILITIES</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccruedLiabilitiesScheduleOfAccruedLiabilitiesDetails" roleURI="http://enphase.com/role/AccruedLiabilitiesScheduleOfAccruedLiabilitiesDetails">
        <link:definition>2414402 - Disclosure - ACCRUED LIABILITIES - Schedule of Accrued Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccruedLiabilitiesTables" roleURI="http://enphase.com/role/AccruedLiabilitiesTables">
        <link:definition>2314301 - Disclosure - ACCRUED LIABILITIES (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Acquisition" roleURI="http://enphase.com/role/Acquisition">
        <link:definition>2127100 - Disclosure - ACQUISITION</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AcquisitionNarrativeDetails" roleURI="http://enphase.com/role/AcquisitionNarrativeDetails">
        <link:definition>2427402 - Disclosure - ACQUISITION - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AcquisitionSummaryOfConsiderationTransferedForBusinessAcquisitionDetails" roleURI="http://enphase.com/role/AcquisitionSummaryOfConsiderationTransferedForBusinessAcquisitionDetails">
        <link:definition>2427403 - Disclosure - ACQUISITION - Summary of Consideration Transfered for Business Acquisition (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AcquisitionSummaryOfFairValuesOfAssetsAcquiredAndLiabilitiesAssumedDetails" roleURI="http://enphase.com/role/AcquisitionSummaryOfFairValuesOfAssetsAcquiredAndLiabilitiesAssumedDetails">
        <link:definition>2427404 - Disclosure - ACQUISITION - Summary of Fair Values of Assets Acquired and Liabilities Assumed (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AcquisitionSummaryOfIdentifiableIntangibleAssetsAcquiredDetails" roleURI="http://enphase.com/role/AcquisitionSummaryOfIdentifiableIntangibleAssetsAcquiredDetails">
        <link:definition>2427405 - Disclosure - ACQUISITION - Summary of Identifiable Intangible Assets Acquired (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AcquisitionTables" roleURI="http://enphase.com/role/AcquisitionTables">
        <link:definition>2327301 - Disclosure - ACQUISITION (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsAndContingentLiabilities" roleURI="http://enphase.com/role/CommitmentsAndContingentLiabilities">
        <link:definition>2119100 - Disclosure - COMMITMENTS AND CONTINGENT LIABILITIES</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsAndContingentLiabilitiesLeaseExpenseComponentsDetails" roleURI="http://enphase.com/role/CommitmentsAndContingentLiabilitiesLeaseExpenseComponentsDetails">
        <link:definition>2419403 - Disclosure - COMMITMENTS AND CONTINGENT LIABILITIES - Lease Expense Components (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsAndContingentLiabilitiesLeaseLiabilitiesDetails" roleURI="http://enphase.com/role/CommitmentsAndContingentLiabilitiesLeaseLiabilitiesDetails">
        <link:definition>2419404 - Disclosure - COMMITMENTS AND CONTINGENT LIABILITIES - Lease Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsAndContingentLiabilitiesNarrativeDetails" roleURI="http://enphase.com/role/CommitmentsAndContingentLiabilitiesNarrativeDetails">
        <link:definition>2419402 - Disclosure - COMMITMENTS AND CONTINGENT LIABILITIES - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsAndContingentLiabilitiesNonCancelableOperatingLeasesDetails" roleURI="http://enphase.com/role/CommitmentsAndContingentLiabilitiesNonCancelableOperatingLeasesDetails">
        <link:definition>2419407 - Disclosure - COMMITMENTS AND CONTINGENT LIABILITIES - Non-cancelable Operating Leases (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsAndContingentLiabilitiesScheduleOfMinimumLeasePaymentsUnderNoncancelableOperatingLeasesDetails" roleURI="http://enphase.com/role/CommitmentsAndContingentLiabilitiesScheduleOfMinimumLeasePaymentsUnderNoncancelableOperatingLeasesDetails">
        <link:definition>2419406 - Disclosure - COMMITMENTS AND CONTINGENT LIABILITIES - Schedule of Minimum Lease Payments Under Noncancelable Operating Leases (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsAndContingentLiabilitiesScheduleOfMinimumLeasePaymentsUnderNoncancelableOperatingLeasesDetailsCalc2" roleURI="http://enphase.com/role/CommitmentsAndContingentLiabilitiesScheduleOfMinimumLeasePaymentsUnderNoncancelableOperatingLeasesDetailsCalc2">
        <link:definition>2419406 - Disclosure - COMMITMENTS AND CONTINGENT LIABILITIES - Schedule of Minimum Lease Payments Under Noncancelable Operating Leases (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsAndContingentLiabilitiesSupplementalCashFlowAndOtherInformationDetails" roleURI="http://enphase.com/role/CommitmentsAndContingentLiabilitiesSupplementalCashFlowAndOtherInformationDetails">
        <link:definition>2419405 - Disclosure - COMMITMENTS AND CONTINGENT LIABILITIES - Supplemental Cash Flow and Other Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsAndContingentLiabilitiesTables" roleURI="http://enphase.com/role/CommitmentsAndContingentLiabilitiesTables">
        <link:definition>2319301 - Disclosure - COMMITMENTS AND CONTINGENT LIABILITIES (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConcentrationOfCreditRiskAndMajorCustomers" roleURI="http://enphase.com/role/ConcentrationOfCreditRiskAndMajorCustomers">
        <link:definition>2123100 - Disclosure - CONCENTRATION OF CREDIT RISK AND MAJOR CUSTOMERS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConcentrationOfCreditRiskAndMajorCustomersDetails" roleURI="http://enphase.com/role/ConcentrationOfCreditRiskAndMajorCustomersDetails">
        <link:definition>2423401 - Disclosure - CONCENTRATION OF CREDIT RISK AND MAJOR CUSTOMERS (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheets" roleURI="http://enphase.com/role/ConsolidatedBalanceSheets">
        <link:definition>1001000 - Statement - CONSOLIDATED BALANCE SHEETS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheetsParenthetical" roleURI="http://enphase.com/role/ConsolidatedBalanceSheetsParenthetical">
        <link:definition>1001501 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsOfCashFlows" roleURI="http://enphase.com/role/ConsolidatedStatementsOfCashFlows">
        <link:definition>1005000 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsOfComprehensiveIncomeLoss" roleURI="http://enphase.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss">
        <link:definition>1003000 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsOfOperations" roleURI="http://enphase.com/role/ConsolidatedStatementsOfOperations">
        <link:definition>1002000 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsOfStockholdersEquityDeficit" roleURI="http://enphase.com/role/ConsolidatedStatementsOfStockholdersEquityDeficit">
        <link:definition>1004000 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIT)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CoverPage" roleURI="http://enphase.com/role/CoverPage">
        <link:definition>0001000 - Document - COVER PAGE</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Debt" roleURI="http://enphase.com/role/Debt">
        <link:definition>2118100 - Disclosure - DEBT</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtConvertibleSeniorNotesDue2023Details" roleURI="http://enphase.com/role/DebtConvertibleSeniorNotesDue2023Details">
        <link:definition>2418405 - Disclosure - DEBT - Convertible Senior Notes due 2023 (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtConvertibleSeniorNotesDue2024Details" roleURI="http://enphase.com/role/DebtConvertibleSeniorNotesDue2024Details">
        <link:definition>2418403 - Disclosure - DEBT - Convertible Senior Notes due 2024 (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtLongTermDebtDetails" roleURI="http://enphase.com/role/DebtLongTermDebtDetails">
        <link:definition>2418402 - Disclosure - DEBT - Long-term debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtLongTermDebtDetailsCalc2" roleURI="http://enphase.com/role/DebtLongTermDebtDetailsCalc2">
        <link:definition>2418402 - Disclosure - DEBT - Long-term debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtSaleOfLongTermFinancingReceivablesDetails" roleURI="http://enphase.com/role/DebtSaleOfLongTermFinancingReceivablesDetails">
        <link:definition>2418408 - Disclosure - DEBT - Sale of Long - Term Financing Receivables (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtScheduleOfConvertibleSeniorNotesDue2023Details" roleURI="http://enphase.com/role/DebtScheduleOfConvertibleSeniorNotesDue2023Details">
        <link:definition>2418406 - Disclosure - DEBT - Schedule of Convertible Senior Notes due 2023 (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtScheduleOfConvertibleSeniorNotesDue2024Details" roleURI="http://enphase.com/role/DebtScheduleOfConvertibleSeniorNotesDue2024Details">
        <link:definition>2418404 - Disclosure - DEBT - Schedule of Convertible Senior Notes due 2024 (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtTables" roleURI="http://enphase.com/role/DebtTables">
        <link:definition>2318301 - Disclosure - DEBT (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtTermLoanDetails" roleURI="http://enphase.com/role/DebtTermLoanDetails">
        <link:definition>2418407 - Disclosure - DEBT - Term Loan (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DescriptionOfBusinessAndBasisOfPresentation" roleURI="http://enphase.com/role/DescriptionOfBusinessAndBasisOfPresentation">
        <link:definition>2106100 - Disclosure - DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurements" roleURI="http://enphase.com/role/FairValueMeasurements">
        <link:definition>2116100 - Disclosure - FAIR VALUE MEASUREMENTS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsNarrativeDetails" roleURI="http://enphase.com/role/FairValueMeasurementsNarrativeDetails">
        <link:definition>2416405 - Disclosure - FAIR VALUE MEASUREMENTS - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsScheduleOfChangesInNonfinancialLiabilitiesRelatedToWarrantObligationsMeasuredAtFairValueOnRecurringBasisUsingSignificantUnobservableInputsDetails" roleURI="http://enphase.com/role/FairValueMeasurementsScheduleOfChangesInNonfinancialLiabilitiesRelatedToWarrantObligationsMeasuredAtFairValueOnRecurringBasisUsingSignificantUnobservableInputsDetails">
        <link:definition>2416403 - Disclosure - FAIR VALUE MEASUREMENTS - Schedule of Changes in Nonfinancial Liabilities Related to Warrant Obligations Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsScheduleOfLiabilitiesMeasuredAtFairValueOnRecurringBasisDetails" roleURI="http://enphase.com/role/FairValueMeasurementsScheduleOfLiabilitiesMeasuredAtFairValueOnRecurringBasisDetails">
        <link:definition>2416402 - Disclosure - FAIR VALUE MEASUREMENTS - Schedule of Liabilities Measured at Fair Value on a Recurring Basis (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsSummaryOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesDesignatedAsLevel3Details" roleURI="http://enphase.com/role/FairValueMeasurementsSummaryOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesDesignatedAsLevel3Details">
        <link:definition>2416404 - Disclosure - FAIR VALUE MEASUREMENTS - Summary of Significant Unobservable Inputs used in the Fair Value Measurement of Liabilities Designated as Level 3 (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsTables" roleURI="http://enphase.com/role/FairValueMeasurementsTables">
        <link:definition>2316301 - Disclosure - FAIR VALUE MEASUREMENTS (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillAndIntangibleAssets" roleURI="http://enphase.com/role/GoodwillAndIntangibleAssets">
        <link:definition>2113100 - Disclosure - GOODWILL AND INTANGIBLE ASSETS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillAndIntangibleAssetsAmortizationExpenseDetails" roleURI="http://enphase.com/role/GoodwillAndIntangibleAssetsAmortizationExpenseDetails">
        <link:definition>2413403 - Disclosure - GOODWILL AND INTANGIBLE ASSETS - Amortization Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillAndIntangibleAssetsScheduleOfGoodwillAndIntangibleAssetsDetails" roleURI="http://enphase.com/role/GoodwillAndIntangibleAssetsScheduleOfGoodwillAndIntangibleAssetsDetails">
        <link:definition>2413402 - Disclosure - GOODWILL AND INTANGIBLE ASSETS - Schedule of Goodwill and Intangible Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillAndIntangibleAssetsTables" roleURI="http://enphase.com/role/GoodwillAndIntangibleAssetsTables">
        <link:definition>2313301 - Disclosure - GOODWILL AND INTANGIBLE ASSETS (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxes" roleURI="http://enphase.com/role/IncomeTaxes">
        <link:definition>2122100 - Disclosure - INCOME TAXES</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesNarrativeDetails" roleURI="http://enphase.com/role/IncomeTaxesNarrativeDetails">
        <link:definition>2422404 - Disclosure - INCOME TAXES - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" roleURI="http://enphase.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails">
        <link:definition>2422406 - Disclosure - INCOME TAXES - Schedule of Deferred Tax Assets and Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesScheduleOfDomesticAndForeignComponentsOfLossBeforeProvisionForIncomeTaxesDetails" roleURI="http://enphase.com/role/IncomeTaxesScheduleOfDomesticAndForeignComponentsOfLossBeforeProvisionForIncomeTaxesDetails">
        <link:definition>2422402 - Disclosure - INCOME TAXES - Schedule of Domestic and Foreign Components of Loss before Provision for Income Taxes (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesScheduleOfEffectiveIncomeTaxRateReconciliationDetails" roleURI="http://enphase.com/role/IncomeTaxesScheduleOfEffectiveIncomeTaxRateReconciliationDetails">
        <link:definition>2422405 - Disclosure - INCOME TAXES - Schedule of Effective Income Tax Rate Reconciliation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesScheduleOfProvisionForIncomeTaxesDetails" roleURI="http://enphase.com/role/IncomeTaxesScheduleOfProvisionForIncomeTaxesDetails">
        <link:definition>2422403 - Disclosure - INCOME TAXES - Schedule of Provision for Income Taxes (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesScheduleOfReconciliationOfTotalAmountsOfUnrecognizedTaxBenefitsDetails" roleURI="http://enphase.com/role/IncomeTaxesScheduleOfReconciliationOfTotalAmountsOfUnrecognizedTaxBenefitsDetails">
        <link:definition>2422407 - Disclosure - INCOME TAXES - Schedule of Reconciliation of Total Amounts of Unrecognized Tax Benefits (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesTables" roleURI="http://enphase.com/role/IncomeTaxesTables">
        <link:definition>2322301 - Disclosure - INCOME TAXES (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Inventory" roleURI="http://enphase.com/role/Inventory">
        <link:definition>2110100 - Disclosure - INVENTORY</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InventorySummaryOfInventoryDetails" roleURI="http://enphase.com/role/InventorySummaryOfInventoryDetails">
        <link:definition>2410402 - Disclosure - INVENTORY - Summary of Inventory (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InventoryTables" roleURI="http://enphase.com/role/InventoryTables">
        <link:definition>2310301 - Disclosure - INVENTORY (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetIncomeLossPerShare" roleURI="http://enphase.com/role/NetIncomeLossPerShare">
        <link:definition>2124100 - Disclosure - NET INCOME (LOSS) PER SHARE</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetIncomeLossPerShareNarrativeDetails" roleURI="http://enphase.com/role/NetIncomeLossPerShareNarrativeDetails">
        <link:definition>2424404 - Disclosure - NET INCOME (LOSS) PER SHARE Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetIncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetLossPerShareDetails" roleURI="http://enphase.com/role/NetIncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetLossPerShareDetails">
        <link:definition>2424402 - Disclosure - NET INCOME (LOSS) PER SHARE - Schedule of Computation of Basic and Diluted Net Loss Per Share (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetIncomeLossPerShareScheduleOfPotentiallyDilutiveSecuritiesExcludedFromComputationOfDilutedNetLossPerShareDetails" roleURI="http://enphase.com/role/NetIncomeLossPerShareScheduleOfPotentiallyDilutiveSecuritiesExcludedFromComputationOfDilutedNetLossPerShareDetails">
        <link:definition>2424403 - Disclosure - NET INCOME (LOSS) PER SHARE - Schedule of Potentially Dilutive Securities Excluded from the Computation of Diluted Net Loss Per Share (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetIncomeLossPerShareTables" roleURI="http://enphase.com/role/NetIncomeLossPerShareTables">
        <link:definition>2324301 - Disclosure - NET INCOME (LOSS) PER SHARE (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyAndEquipmentNet" roleURI="http://enphase.com/role/PropertyAndEquipmentNet">
        <link:definition>2112100 - Disclosure - PROPERTY AND EQUIPMENT, NET</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyAndEquipmentNetNarrativeDetails" roleURI="http://enphase.com/role/PropertyAndEquipmentNetNarrativeDetails">
        <link:definition>2412403 - Disclosure - PROPERTY AND EQUIPMENT, NET Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyAndEquipmentNetSummaryOfPropertyAndEquipmentDetails" roleURI="http://enphase.com/role/PropertyAndEquipmentNetSummaryOfPropertyAndEquipmentDetails">
        <link:definition>2412402 - Disclosure - PROPERTY AND EQUIPMENT, NET Summary of Property and Equipment (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyAndEquipmentNetTables" roleURI="http://enphase.com/role/PropertyAndEquipmentNetTables">
        <link:definition>2312301 - Disclosure - PROPERTY AND EQUIPMENT, NET (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedParty" roleURI="http://enphase.com/role/RelatedParty">
        <link:definition>2126100 - Disclosure - RELATED PARTY</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartyNarrativeDetails" roleURI="http://enphase.com/role/RelatedPartyNarrativeDetails">
        <link:definition>2426401 - Disclosure - RELATED PARTY Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Restructuring" roleURI="http://enphase.com/role/Restructuring">
        <link:definition>2117100 - Disclosure - RESTRUCTURING</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RestructuringRollforwardDetails" roleURI="http://enphase.com/role/RestructuringRollforwardDetails">
        <link:definition>2417403 - Disclosure - RESTRUCTURING - Rollforward (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RestructuringSummaryOfRestructuringChargesDetails" roleURI="http://enphase.com/role/RestructuringSummaryOfRestructuringChargesDetails">
        <link:definition>2417402 - Disclosure - RESTRUCTURING - Summary of Restructuring Charges (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RestructuringTables" roleURI="http://enphase.com/role/RestructuringTables">
        <link:definition>2317301 - Disclosure - RESTRUCTURING (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueRecognition" roleURI="http://enphase.com/role/RevenueRecognition">
        <link:definition>2108100 - Disclosure - REVENUE RECOGNITION</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueRecognitionNarrativeDetails" roleURI="http://enphase.com/role/RevenueRecognitionNarrativeDetails">
        <link:definition>2408404 - Disclosure - REVENUE RECOGNITION - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueRecognitionSummaryOfContractAssetsAndContractLiabilitiesFromContractsWithCustomersDetails" roleURI="http://enphase.com/role/RevenueRecognitionSummaryOfContractAssetsAndContractLiabilitiesFromContractsWithCustomersDetails">
        <link:definition>2408403 - Disclosure - REVENUE RECOGNITION - Summary of Contract Assets and Contract Liabilities from Contracts with Customers (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueRecognitionSummaryOfDisaggregatedRevenueByPrimaryGeographicalMarketAndTimingOfRevenueRecognitionDetails" roleURI="http://enphase.com/role/RevenueRecognitionSummaryOfDisaggregatedRevenueByPrimaryGeographicalMarketAndTimingOfRevenueRecognitionDetails">
        <link:definition>2408402 - Disclosure - REVENUE RECOGNITION - Summary of Disaggregated Revenue by Primary Geographical Market and Timing of Revenue Recognition (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueRecognitionSummaryOfEstimatedRevenueExpectedToBeRecognizedInFuturePeriodsDetails" roleURI="http://enphase.com/role/RevenueRecognitionSummaryOfEstimatedRevenueExpectedToBeRecognizedInFuturePeriodsDetails">
        <link:definition>2408406 - Disclosure - REVENUE RECOGNITION - Summary of Estimated Revenue Expected to be Recognized in Future Periods (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueRecognitionSummaryOfSignificantChangesInBalancesOfContractLiabilitiesAndAssetsDetails" roleURI="http://enphase.com/role/RevenueRecognitionSummaryOfSignificantChangesInBalancesOfContractLiabilitiesAndAssetsDetails">
        <link:definition>2408405 - Disclosure - REVENUE RECOGNITION - Summary of Significant Changes in the Balances of Contract Liabilities and Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueRecognitionTables" roleURI="http://enphase.com/role/RevenueRecognitionTables">
        <link:definition>2308301 - Disclosure - REVENUE RECOGNITION (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SaleOfCommonStock" roleURI="http://enphase.com/role/SaleOfCommonStock">
        <link:definition>2120100 - Disclosure - SALE OF COMMON STOCK</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SaleOfCommonStockDetails" roleURI="http://enphase.com/role/SaleOfCommonStockDetails">
        <link:definition>2420401 - Disclosure - SALE OF COMMON STOCK (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentAndGeographicInformation" roleURI="http://enphase.com/role/SegmentAndGeographicInformation">
        <link:definition>2125100 - Disclosure - SEGMENT AND GEOGRAPHIC INFORMATION</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentAndGeographicInformationNarrativeDetails" roleURI="http://enphase.com/role/SegmentAndGeographicInformationNarrativeDetails">
        <link:definition>2425402 - Disclosure - SEGMENT AND GEOGRAPHIC INFORMATION - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentAndGeographicInformationSummaryOfLongLivedAssetsByGeographicRegionDetails" roleURI="http://enphase.com/role/SegmentAndGeographicInformationSummaryOfLongLivedAssetsByGeographicRegionDetails">
        <link:definition>2425404 - Disclosure - SEGMENT AND GEOGRAPHIC INFORMATION - Summary of Long-Lived Assets by Geographic Region (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentAndGeographicInformationSummaryOfNetRevenuesByGeographicRegionDetails" roleURI="http://enphase.com/role/SegmentAndGeographicInformationSummaryOfNetRevenuesByGeographicRegionDetails">
        <link:definition>2425403 - Disclosure - SEGMENT AND GEOGRAPHIC INFORMATION - Summary of Net Revenues by Geographic Region (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentAndGeographicInformationTables" roleURI="http://enphase.com/role/SegmentAndGeographicInformationTables">
        <link:definition>2325301 - Disclosure - SEGMENT AND GEOGRAPHIC INFORMATION (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SelectedUnauditedQuarterlyFinancialInformation" roleURI="http://enphase.com/role/SelectedUnauditedQuarterlyFinancialInformation">
        <link:definition>2128100 - Disclosure - SELECTED UNAUDITED QUARTERLY FINANCIAL INFORMATION</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SelectedUnauditedQuarterlyFinancialInformationScheduleOfQuarterlyFinancialInformationDetails" roleURI="http://enphase.com/role/SelectedUnauditedQuarterlyFinancialInformationScheduleOfQuarterlyFinancialInformationDetails">
        <link:definition>2428402 - Disclosure - SELECTED UNAUDITED QUARTERLY FINANCIAL INFORMATION - Schedule of Quarterly Financial Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SelectedUnauditedQuarterlyFinancialInformationTables" roleURI="http://enphase.com/role/SelectedUnauditedQuarterlyFinancialInformationTables">
        <link:definition>2328301 - Disclosure - SELECTED UNAUDITED QUARTERLY FINANCIAL INFORMATION (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensation" roleURI="http://enphase.com/role/StockBasedCompensation">
        <link:definition>2121100 - Disclosure - STOCK-BASED COMPENSATION</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationNarrativeDetails" roleURI="http://enphase.com/role/StockBasedCompensationNarrativeDetails">
        <link:definition>2421402 - Disclosure - STOCK-BASED COMPENSATION Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationSummaryOfComponentsOfTotalStockBasedCompensationExpenseDetails" roleURI="http://enphase.com/role/StockBasedCompensationSummaryOfComponentsOfTotalStockBasedCompensationExpenseDetails">
        <link:definition>2421404 - Disclosure - STOCK-BASED COMPENSATION - Summary of the Components of Total Stock-Based Compensation Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationSummaryOfEsppActivityDetails" roleURI="http://enphase.com/role/StockBasedCompensationSummaryOfEsppActivityDetails">
        <link:definition>2421410 - Disclosure - STOCK-BASED COMPENSATION Summary of ESPP Activity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationSummaryOfPerformanceStockUnitActivityDetails" roleURI="http://enphase.com/role/StockBasedCompensationSummaryOfPerformanceStockUnitActivityDetails">
        <link:definition>2421409 - Disclosure - STOCK-BASED COMPENSATION - Summary of Performance Stock Unit Activity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationSummaryOfRestrictedStockUnitActivityDetails" roleURI="http://enphase.com/role/StockBasedCompensationSummaryOfRestrictedStockUnitActivityDetails">
        <link:definition>2421408 - Disclosure - STOCK-BASED COMPENSATION - Summary of Restricted Stock Unit Activity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationSummaryOfStockBasedCompensationAssociatedWithEachTypeOfAwardDetails" roleURI="http://enphase.com/role/StockBasedCompensationSummaryOfStockBasedCompensationAssociatedWithEachTypeOfAwardDetails">
        <link:definition>2421405 - Disclosure - STOCK-BASED COMPENSATION - Summary of Stock-Based Compensation Associated with Each Type of Award (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationSummaryOfStockOptionActivityDetails" roleURI="http://enphase.com/role/StockBasedCompensationSummaryOfStockOptionActivityDetails">
        <link:definition>2421406 - Disclosure - STOCK-BASED COMPENSATION - Summary of Stock Option Activity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationSummaryOfStockOptionsOutstandingDetails" roleURI="http://enphase.com/role/StockBasedCompensationSummaryOfStockOptionsOutstandingDetails">
        <link:definition>2421407 - Disclosure - STOCK-BASED COMPENSATION - Summary of Stock Options Outstanding (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationSummaryOfWeightedAverageGrantDateFairValueOfOptionsGrantedDetails" roleURI="http://enphase.com/role/StockBasedCompensationSummaryOfWeightedAverageGrantDateFairValueOfOptionsGrantedDetails">
        <link:definition>2421403 - Disclosure - STOCK-BASED COMPENSATION - Summary of the Weighted-Average Grant Date Fair Value of Options Granted (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationTables" roleURI="http://enphase.com/role/StockBasedCompensationTables">
        <link:definition>2321301 - Disclosure - STOCK-BASED COMPENSATION (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryOfSignificantAccountingPolicies" roleURI="http://enphase.com/role/SummaryOfSignificantAccountingPolicies">
        <link:definition>2107100 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryOfSignificantAccountingPoliciesNarrativeDetails" roleURI="http://enphase.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails">
        <link:definition>2407403 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryOfSignificantAccountingPoliciesPolicies" roleURI="http://enphase.com/role/SummaryOfSignificantAccountingPoliciesPolicies">
        <link:definition>2207201 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryOfSignificantAccountingPoliciesScheduleOfActivityInAllowanceForDoubtfulAccountsDetails" roleURI="http://enphase.com/role/SummaryOfSignificantAccountingPoliciesScheduleOfActivityInAllowanceForDoubtfulAccountsDetails">
        <link:definition>2407404 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Schedule of Activity in Allowance for Doubtful Accounts (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryOfSignificantAccountingPoliciesTables" roleURI="http://enphase.com/role/SummaryOfSignificantAccountingPoliciesTables">
        <link:definition>2307302 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="WarrantyObligations" roleURI="http://enphase.com/role/WarrantyObligations">
        <link:definition>2115100 - Disclosure - WARRANTY OBLIGATIONS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="WarrantyObligationsNarrativeDetails" roleURI="http://enphase.com/role/WarrantyObligationsNarrativeDetails">
        <link:definition>2415403 - Disclosure - WARRANTY OBLIGATIONS - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="WarrantyObligationsSummaryOfWarrantyActivitiesDetails" roleURI="http://enphase.com/role/WarrantyObligationsSummaryOfWarrantyActivitiesDetails">
        <link:definition>2415402 - Disclosure - WARRANTY OBLIGATIONS - Summary of Warranty Activities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="WarrantyObligationsTables" roleURI="http://enphase.com/role/WarrantyObligationsTables">
        <link:definition>2315301 - Disclosure - WARRANTY OBLIGATIONS (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xsd:appinfo>
  </xsd:annotation>
  <xsd:element abstract="true" id="enph_ACBatteryStorageSolutionMember" name="ACBatteryStorageSolutionMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_AccountsReceivableLargestCustomerMember" name="AccountsReceivableLargestCustomerMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_AccountsReceivableSecondLargestCustomerMember" name="AccountsReceivableSecondLargestCustomerMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_AccountsReceivableThirdLargestCustomerMember" name="AccountsReceivableThirdLargestCustomerMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_AccountsReceivablesandContractAssetsPolicyTextBlock" name="AccountsReceivablesandContractAssetsPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_AccruedFreightCosts" name="AccruedFreightCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="enph_AccruedInterestPayableUponExchangeOfConvertibleNotes" name="AccruedInterestPayableUponExchangeOfConvertibleNotes" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="enph_AdjustmentstoAdditionalPaidinCapitalConvertibleBondHedge" name="AdjustmentstoAdditionalPaidinCapitalConvertibleBondHedge" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_AfterAugust12012Member" name="AfterAugust12012Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_AmendedTennenbaumCapitalPartnersLLCAgreementMember" name="AmendedTennenbaumCapitalPartnersLLCAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_AssetImpairmentandLeaseLossReserve" name="AssetImpairmentandLeaseLossReserve" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_AssetImpairmentsMember" name="AssetImpairmentsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_BackwardsCompatibilityCablesMember" name="BackwardsCompatibilityCablesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_BeforeAugust12012Member" name="BeforeAugust12012Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_BusinessCombinationConsiderationTransferredEquityInterestsIssuedandIssuableMeasurementInput" name="BusinessCombinationConsiderationTransferredEquityInterestsIssuedandIssuableMeasurementInput" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element id="enph_BusinessCombinationLimitationForNumberOfSharesToBeTransferedByAcquireePeriod" name="BusinessCombinationLimitationForNumberOfSharesToBeTransferedByAcquireePeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_BusinessCombinationLimitationForTradeOrTransferPeriod" name="BusinessCombinationLimitationForTradeOrTransferPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_BusinessCombinationSupplyAgreementPeriod" name="BusinessCombinationSupplyAgreementPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_ChangeInContractWithCustomerAssetRollForward" name="ChangeInContractWithCustomerAssetRollForward" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_ChangeInContractWithCustomerLiabilityRollForward" name="ChangeInContractWithCustomerLiabilityRollForward" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_ClaimRatesMember" name="ClaimRatesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_CommunicationAccessoriesMember" name="CommunicationAccessoriesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_ConsultantsFeesMember" name="ConsultantsFeesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_ContractWithCustomerAssetAmountRecognized" name="ContractWithCustomerAssetAmountRecognized" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="enph_ContractWithCustomerAssetNewContractAdditions" name="ContractWithCustomerAssetNewContractAdditions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="enph_ContractWithCustomerIncreaseDueToSafeHarborPrepayments" name="ContractWithCustomerIncreaseDueToSafeHarborPrepayments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="enph_ContractWithCustomerLiabilityIncreaseFromCashReceipts" name="ContractWithCustomerLiabilityIncreaseFromCashReceipts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_ConvertibleSeniorNoteDue2024Member" name="ConvertibleSeniorNoteDue2024Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_ConvertibleSeniorNotesDue2023Member" name="ConvertibleSeniorNotesDue2023Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_DebtInstrumentConvertibleConversionShares" name="DebtInstrumentConvertibleConversionShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="enph_DebtInstrumentConvertibleMeasurementPeriodPercentageOfStockPriceTrigger" name="DebtInstrumentConvertibleMeasurementPeriodPercentageOfStockPriceTrigger" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_DebtIssuanceCostsAllocatedtoCapital" name="DebtIssuanceCostsAllocatedtoCapital" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="enph_DeferredTaxAssetsDeferredExpenseOtherNoncurrent" name="DeferredTaxAssetsDeferredExpenseOtherNoncurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="enph_DeferredTaxAssetsDeferredIncomeNoncurrent" name="DeferredTaxAssetsDeferredIncomeNoncurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="enph_DeferredTaxAssetsInterestCarryforward" name="DeferredTaxAssetsInterestCarryforward" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="enph_DeferredTaxAssetsOperatingLossCarryforwardsNoncurrent" name="DeferredTaxAssetsOperatingLossCarryforwardsNoncurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="enph_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCostNoncurrent" name="DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCostNoncurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="enph_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsCurrent" name="DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="enph_DeferredTaxLiabilitiesPropertyPlantAndEquipmentAndIntangibleAssetsNoncurrent" name="DeferredTaxLiabilitiesPropertyPlantAndEquipmentAndIntangibleAssetsNoncurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="enph_DevelopedTechnologyAndGoodwillMember" name="DevelopedTechnologyAndGoodwillMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_DiscountRateMember" name="DiscountRateMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_EffectiveIncomeTaxRateReconciliationGlobalIntangibleLowTaxedIncomeAmount" name="EffectiveIncomeTaxRateReconciliationGlobalIntangibleLowTaxedIncomeAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="enph_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseExcessCompensationAmount" name="EffectiveIncomeTaxRateReconciliationNondeductibleExpenseExcessCompensationAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_EmployeeStockOptionsAndRestrictedStockUnitsMember" name="EmployeeStockOptionsAndRestrictedStockUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_EmployeeStockPurchasePlanEsppMember" name="EmployeeStockPurchasePlanEsppMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_EmployeeStockPurchasePlanNumberOfInterimPurchasePeriods" name="EmployeeStockPurchasePlanNumberOfInterimPurchasePeriods" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_EmployeeStockPurchasePlanWeightedAveragePurchasePriceofSharesPurchased" name="EmployeeStockPurchasePlanWeightedAveragePurchasePriceofSharesPurchased" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_Enph_ProductWarrantyAccrualCurrentFairValueDisclosure" name="Enph_ProductWarrantyAccrualCurrentFairValueDisclosure" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="enph_Enph_ProductWarrantyAccrualNoncurrentFairValueDisclosure" name="Enph_ProductWarrantyAccrualNoncurrentFairValueDisclosure" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="enph_EnvoyCommunicationsGatewayMember" name="EnvoyCommunicationsGatewayMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_FailureRateMember" name="FailureRateMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityValueCurrent" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityValueCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="enph_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityValueNoncurrent" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityValueNoncurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="enph_FairValueMeasurementwithUnobservableInputsReconciliationRecurringBasisIncreaseDecreaseinOther" name="FairValueMeasurementwithUnobservableInputsReconciliationRecurringBasisIncreaseDecreaseinOther" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="enph_FairValueMeasurementwithUnobservableInputsReconciliationRecurringBasisWarrantiesIssued" name="FairValueMeasurementwithUnobservableInputsReconciliationRecurringBasisWarrantiesIssued" 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_FinancingReceivableRecordedAsDebtMember" name="FinancingReceivableRecordedAsDebtMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" 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 id="enph_GeneralDurationOfEmployeeStockPurchasePlan" name="GeneralDurationOfEmployeeStockPurchasePlan" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_IQSeriesMember" name="IQSeriesMember" 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 id="enph_IncreaseDecreaseInWarrantyObligations" name="IncreaseDecreaseInWarrantyObligations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="enph_IncreaseInCommonStockSharesReservedForFutureIssuancePercentage" name="IncreaseInCommonStockSharesReservedForFutureIssuancePercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_IncreasedUnitedStatesTariffsForProductsManufacturedInChinaMember" name="IncreasedUnitedStatesTariffsForProductsManufacturedInChinaMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <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_LaborReimbursementCostMember" name="LaborReimbursementCostMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_LeaseLossReservesAndContractTerminationCostsMember" name="LeaseLossReservesAndContractTerminationCostsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_LiabilityPurchaseOptionForReceivablesFairValue" name="LiabilityPurchaseOptionForReceivablesFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="enph_MeasurementInputProfitElementAndRiskPremiumMember" name="MeasurementInputProfitElementAndRiskPremiumMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_MonitoringHardwareAndServiceMember" name="MonitoringHardwareAndServiceMember" 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_NetRevenueSecondLargestCustomerMember" name="NetRevenueSecondLargestCustomerMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_NetRevenuesLargestCustomerMember" name="NetRevenuesLargestCustomerMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_NumberofUnitsSold" name="NumberofUnitsSold" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_OperatingLeasesFutureMinimumPaymentsDueNetOfSubleaseRentals" name="OperatingLeasesFutureMinimumPaymentsDueNetOfSubleaseRentals" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="enph_OtherCountryMember" name="OtherCountryMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_PatentsAndLicensedTechnologyMember" name="PatentsAndLicensedTechnologyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_PaymentsToAcquireBusinessTotalGrossAmount" name="PaymentsToAcquireBusinessTotalGrossAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="enph_PercentOfTotalSales" name="PercentOfTotalSales" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_PerformanceSharesWithMarketConditionsMember" name="PerformanceSharesWithMarketConditionsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_PerformanceSharesWithoutMarketConditionsMember" name="PerformanceSharesWithoutMarketConditionsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_PriorGenerationsMember" name="PriorGenerationsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_ProceedsFromIssuanceOfCommonStockGross" name="ProceedsFromIssuanceOfCommonStockGross" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="enph_ProceedsfromConvertibleDebtNetofIssuanceCosts" name="ProceedsfromConvertibleDebtNetofIssuanceCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" 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_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_ProductWarrantyObligationsMeasurementInput" name="ProductWarrantyObligationsMeasurementInput" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <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 abstract="true" id="enph_RestructuringPlan2016Member" name="RestructuringPlan2016Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_RestructuringPlan2018Member" name="RestructuringPlan2018Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_RevenueFromContractWithCustomerServicePeriod" name="RevenueFromContractWithCustomerServicePeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_RevenueRemainingPerformanceObligationAmountSafeHarborPrepaymentsForProductDeliveryInNextFiscalQuarter" name="RevenueRemainingPerformanceObligationAmountSafeHarborPrepaymentsForProductDeliveryInNextFiscalQuarter" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <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_SecondandThirdGenerationsMember" name="SecondandThirdGenerationsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpectedToVestOutstandingNumber" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpectedToVestOutstandingNumber" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="enph_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedToVestOutstandingWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedToVestOutstandingWeightedAverageExercisePrice" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant" />
  <xsd:element id="enph_ShareBasedCompensationArrangementByShareBasedPaymentAwardEvergreenShares" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEvergreenShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" 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_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVestIntrinsicValueValue" name="SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVestIntrinsicValueValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="enph_SharebasedCompensationArrangementbySharebasedPaymentAwardIncreaseinNumberofSharesAuthorizedRatio" name="SharebasedCompensationArrangementbySharebasedPaymentAwardIncreaseinNumberofSharesAuthorizedRatio" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_SharebasedCompensationArrangementbySharebasedPaymentAwardOtherthanOptionsExpectedtoVestWeightedAverageRemainingContractualTerm" name="SharebasedCompensationArrangementbySharebasedPaymentAwardOtherthanOptionsExpectedtoVestWeightedAverageRemainingContractualTerm" nillable="true" substitutionGroup="xbrli:item" type="us-types:durationStringItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_SharebasedCompensationArrangementbySharebasedPaymentAwardPerformanceTargetPercentage" name="SharebasedCompensationArrangementbySharebasedPaymentAwardPerformanceTargetPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_StandardAndExtendedProductWarrantyAccrualOtherPeriodIncreaseDecrease" name="StandardAndExtendedProductWarrantyAccrualOtherPeriodIncreaseDecrease" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="enph_StockIssuedduringperiodsettlementofequityawards" name="StockIssuedduringperiodsettlementofequityawards" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_SunPowersMember" name="SunPowersMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_TennenbaumCapitalPartnersLLCMember" name="TennenbaumCapitalPartnersLLCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_TermLoanAgreementJuly2016Member" name="TermLoanAgreementJuly2016Member" 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_ThurmanJohnRodgersMember" name="ThurmanJohnRodgersMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_TwoThousandSixEquityIncentivePlanMember" name="TwoThousandSixEquityIncentivePlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="enph_TwoThousandandElevenEquityIncentivePlanMember" name="TwoThousandandElevenEquityIncentivePlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="enph_WarrantyObligationsAtFairValueDecreaseInFairValueLiabilityResultingFromOnePercentagePointDecreaseInProfitElementAndRiskPremium" name="WarrantyObligationsAtFairValueDecreaseInFairValueLiabilityResultingFromOnePercentagePointDecreaseInProfitElementAndRiskPremium" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="enph_WarrantyObligationsAtFairValueIncreaseInFairValueLiabilityResultingFromOnePercentagePointIncreaseInProfitElementAndRiskPremium" name="WarrantyObligationsAtFairValueIncreaseInFairValueLiabilityResultingFromOnePercentagePointIncreaseInProfitElementAndRiskPremium" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="enph_WarrantyObligationsAtFairValueIncreaseInFairValueResultingFromOnePercentagePointDecreaseInDiscountRate" name="WarrantyObligationsAtFairValueIncreaseInFairValueResultingFromOnePercentagePointDecreaseInDiscountRate" 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="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_WeightedAverageRemainingContractualTerm" name="WeightedAverageRemainingContractualTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
</xsd:schema>
