Table of Contents Power of Attorney (incorporated by reference to the signature 24.1 X page of this Annual Report on Form 10-K). Certification of Chief Executive Officer pursuant to Rule 31.1 X 13a-14(a)/15d-14(a). Certification of Chief Financial Officer pursuant to Rule 31.2 X 13a-14(a)/15d-14(a). Certification of Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. Section 1350 as Adopted 32.1* X Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, as amended. 97.1 Incentive Compensation Recoupment Policy X 101.INS XBRL Instance Document. X 101.SCH XBRL Taxonomy Extension Schema Document. X 101.CAL XBRL Taxonomy Extension Calculation Linkbase Document. X 101.DEF XBRL Taxonomy Extension Definition Linkbase Document. X 101.LAB XBRL Taxonomy Extension Label Linkbase Document. X 101.PRE XBRL Taxonomy Extension Presentation Document. X Cover Page Interactive Data File (formatted as Inline XBRL 104 X and contained in Exhibits 101). + Management compensatory plan or arrangement. † Confidential treatment has been granted for certain portions of this exhibit. Omitted information has been filed separately with the Securities and Exchange Commission. # Pursuant to Item 601(b)(10) of Regulation S-K, certain portions of this exhibit have been omitted by means of marking such portions with asterisks because we have determined that the information is both not material and is the type that we treat as private or confidential. * The certifications attached as Exhibit 32.1 accompany this Annual Report on Form 10-K pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act, and shall not be deemed “filed” by Enphase Energy, Inc. for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, nor shall they be deemed incorporated by reference in any filing. Enphase Energy, Inc. | 2023 Form 10-K | 129