NOVA / Sunnova Energy International Inc. - Документы SEC, Годовой отчет, Доверенное заявление

Execution Version BILL OF SALE, ASSIGNMENT AND ASSUMPTION AGREEMENT AND AMENDMENT TO PURCHASE AGREEMENT THIS BILL OF SALE, ASSIGNMENT AND ASSUMPTION AGREEMENT AND AMENDMENT TO PURCHASE AGREEMENT (this “Agreement”) is entered into as of June 16, 2025,

exhibit101-lennarbillofs Execution Version BILL OF SALE, ASSIGNMENT AND ASSUMPTION AGREEMENT AND AMENDMENT TO PURCHASE AGREEMENT THIS BILL OF SALE, ASSIGNMENT AND ASSUMPTION AGREEMENT AND AMENDMENT TO PURCHASE AGREEMENT (this “Agreement”) is entered into as of June 16, 2025, by and between Sunnova Energy Corporation, a Delaware corporation (“SEC”), MoonRoad Services Group, LLC, a Delaware limited

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): June 16, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or o

Execution Version SUPERPRIORITY SENIOR SECURED DEBTOR-IN-POSSESSION CREDIT AGREEMENT dated as of June 13, 2025, among SUNNOVA ENERGY INTERNATIONAL INC., a debtor and debtor-in-possession under chapter 11 of the Bankruptcy Code, as Borrower, THE LENDE

Execution Version SUPERPRIORITY SENIOR SECURED DEBTOR-IN-POSSESSION CREDIT AGREEMENT dated as of June 13, 2025, among SUNNOVA ENERGY INTERNATIONAL INC.

EXECUTION VERSION ___________________________________________________________________________ ASSET PURCHASE AGREEMENT DATED AS OF JUNE 13, 2025 BY AND AMONG SOLARIS ASSETS, LLC, SOLARIS ABS, LLC AND SOLARIS BORROWER, LLC, AS PURCHASERS, AND THE PERS

EXECUTION VERSION ASSET PURCHASE AGREEMENT DATED AS OF JUNE 13, 2025 BY AND AMONG SOLARIS ASSETS, LLC, SOLARIS ABS, LLC AND SOLARIS BORROWER, LLC, AS PURCHASERS, AND THE PERSONS SET FORTH ON ANNEX I, AS SELLERS TABLE OF CONTENTS Page i ARTICLE I PURCHASE AND SALE OF ACQUIRED ASSETS; ASSUMPTION OF ASSUMED LIABILITIES.

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): June 11, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or o

Sunnova Announces Strategic Action to Facilitate Value-Maximizing Sale Process Files voluntary petitions for chapter 11 with support of key financial stakeholders Continues to service and manage customers’ solar and storage systems in the ordinary co

Exhibit 99.1 Sunnova Energy International, Inc. 20 Greenway Plaza, Suite 540 Houston, Texas 77046 sunnova.com Sunnova Announces Strategic Action to Facilitate Value-Maximizing Sale Process Files voluntary petitions for chapter 11 with support of key financial stakeholders Continues to service and manage customers’ solar and storage systems in the ordinary course of business at this time Receives i

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES The New York Stock Exchange (the 'NYSE' or the 'Exchange') hereby notifies the Securities and Exchange Commission (the 'Commission') of its intention to remove the Common Stock of Sunnova Energy International Inc.

Regulation FD Disclosure, Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): June 9, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or or

Execution Version ASSET PURCHASE AGREEMENT BY AND AMONG SUNNOVA ENERGY CORPORATION, SUNNOVA TEP DEVELOPER, LLC, SUNNOVA TEP HOLDINGS, LLC, AND SUNNOVA TEP HOLDINGS SUBSIDIARY, LLC DATED AS OF JUNE 8, 2025 i TABLE OF CONTENTS Page ARTICLE I DEFINITION

Execution Version ASSET PURCHASE AGREEMENT BY AND AMONG SUNNOVA ENERGY CORPORATION, SUNNOVA TEP DEVELOPER, LLC, SUNNOVA TEP HOLDINGS, LLC, AND SUNNOVA TEP HOLDINGS SUBSIDIARY, LLC DATED AS OF JUNE 8, 2025 i TABLE OF CONTENTS Page ARTICLE I DEFINITIONS Section 1.

Execution Version SOLAR POWER SYSTEM PURCHASE AGREEMENT This is an agreement (the “Agreement”) dated as of June 9, 2025, between Lennar Homes, LLC (together with its Affiliates, “Buyer”), a Florida limited liability company, and Sunnova TEP Developer

Execution Version SOLAR POWER SYSTEM PURCHASE AGREEMENT This is an agreement (the “Agreement”) dated as of June 9, 2025, between Lennar Homes, LLC (together with its Affiliates, “Buyer”), a Florida limited liability company, and Sunnova TEP Developer, LLC (“Seller”), a Delaware corporation.

Analysis based on existing outstanding ABS transactions only and excludes any cash flows associated with new originations, new ABS issuances and new tax equity funding Legend Pre-ARD Cash Flows Post-ARD Cash Flows $ millions Series Issuer EU RR? ARD

exhibit991-cleansingmate Analysis based on existing outstanding ABS transactions only and excludes any cash flows associated with new originations, new ABS issuances and new tax equity funding Legend Pre-ARD Cash Flows Post-ARD Cash Flows $ millions Series Issuer EU RR? ARD 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 TOTAL 2019-A HELIII Yes 6/20/2029 $9.

Regulation FD Disclosure, Financial Statements and Exhibits, Triggering Events That Accelerate or Increase a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement, Bankruptcy or Receivership

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): June 8, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or or

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): June 8, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or or

Regulation FD Disclosure, Costs Associated with Exit or Disposal Activities, Triggering Events That Accelerate or Increase a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 29, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or or

Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 29, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or or

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 22, 2025 Sunnova Energy Inter

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 22, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or or

AMENDMENT NO. 1 TO LOAN GUARANTEE AGREEMENT

Exhibit 10.1 AMENDMENT NO. 1 TO LOAN GUARANTEE AGREEMENT AMENDMENT NO. 1 TO LOAN GUARANTEE AGREEMENT (this “Agreement”), dated as of May 22, 2025, by and among (i) Sunnova Energy Corporation, a Delaware corporation, as the Sponsor (the “Sponsor”), (ii) Sunnova ABS Management, LLC, a Delaware limited liability company, as Servicer and Manager (the “Manager”) and (iii) the U.S. Department of Energy,

Sunnova Receives NYSE Notice Regarding Delayed Form 10-Q Filing

Sunnova Energy International, Inc. 20 East Greenway Plaza, Suite 540 Houston, Texas 77046 sunnova.com Sunnova Receives NYSE Notice Regarding Delayed Form 10-Q Filing HOUSTON, TX – May 23, 2025 – (BUSINESS WIRE) – Sunnova Energy International Inc. (“Sunnova” or the “Company”) (NYSE: NOVA), an industry-leading adaptive energy services company, today announced that it received a notice (the “Notice”)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 20, 2025 Sunnova Energy Inter

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 20, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or or

Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 22, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or or

Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 15, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or or

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING SEC File Number 001-38995 CUSIP Number 86745K104

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING SEC File Number 001-38995 CUSIP Number 86745K104 (Check One): ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-CEN ☐ Form N-CSR For Period Ended: March 31, 2025 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Transi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 8, 2025 Sunnova Energy Intern

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 8, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or org

FORBEARANCE AGREEMENT

Exhibit 10.1 Execution Version CERTAIN CONFIDENTIAL PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND REPLACED WITH “[Omitted]”. SUCH IDENTIFIED INFORMATION HAS BEEN EXCLUDED FROM THIS EXHIBIT BECAUSE IT IS (I) NOT MATERIAL AND (II) WOULD LIKELY CAUSE COMPETITIVE HARM TO THE COMPANY IF DISCLOSED. FORBEARANCE AGREEMENT This FORBEARANCE AGREEMENT, dated as of May 2, 2025 (this “Agreement”), is by and a

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 2, 2025 Sunnova Energy Intern

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 2, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or org

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 1 (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-38

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): April 27, 2025 Sunnova Energy Int

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): April 27, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): April 14, 2025 Sunnova Energy Int

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): April 14, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or

Amendment No. 2 to Third Amended and Restated Credit Agreement (SLA), dated as of April 14, 2025, by and among Sunnova EZ-Own Portfolio, LLC, Sunnova SLA Management, LLC, Sunnova Asset Portfolio 7 Holdings, LLC, the financial institutions parties thereto, each funding agent representing a group of lenders party thereto, and Atlas Securitized Products Administration, L.P.

Exhibit 10.1 Execution Final Amendment No. 2 to Third Amended and Restated Credit Agreement (SLA) This Amendment No. 2 to Third Amended and Restated Credit Agreement (SLA) (this “Amendment”), is dated as of April 14, 2025 (the “Effective Date”), by and among Sunnova EZ-Own Portfolio, LLC, a Delaware limited liability company (the “Borrower”), Sunnova SLA Management, LLC, a Delaware limited liabili

Sunnova Announces Appointment of Two Independent Directors Tony Horton and Jeffrey S. Stein Join Sunnova Board as Independent Directors Establishes Special Committee to Support Ongoing Capital Structure Initiatives

Exhibit 99.1 Sunnova Energy International, Inc. 20 Greenway Plaza, Suite 540 Houston, Texas 77046 sunnova.com Sunnova Announces Appointment of Two Independent Directors Tony Horton and Jeffrey S. Stein Join Sunnova Board as Independent Directors Establishes Special Committee to Support Ongoing Capital Structure Initiatives HOUSTON, TX – April 11, 2025 – (BUSINESS WIRE) – Sunnova Energy Internation

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): April 7, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or o

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): April 4, 2025 Sunnova Energy Inte

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): April 4, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or o

Sunnova Receives Continued Listing Notice from NYSE

Exhibit 99.1 Sunnova Energy International, Inc. 20 Greenway Plaza, Suite 540 Houston, Texas 77046 sunnova.com Sunnova Receives Continued Listing Notice from NYSE HOUSTON, TX – April 4, 2025 – Sunnova Energy International Inc. (“Sunnova” or the “Company”) (NYSE: NOVA), an industry-leading adaptive energy services company, announced today that on April 1, 2025 it received a notification letter from

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): April 1, 2025 Sunnova Energy Inte

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): April 1, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or o

Amendment No. 1 to Third Amended and Restated Credit Agreement (SLA), dated as of April 3, 2025, by and among Sunnova EZ-Own Portfolio, LLC, Sunnova SLA Management, LLC, Sunnova Asset Portfolio 7 Holdings, LLC, the financial institutions parties thereto, each funding agent representing a group of lenders party thereto, and Atlas Securitized Products Administration, L.P.

Exhibit 10.1 Execution Final Amendment No. 1 to Third Amended and Restated Credit Agreement (SLA) This Amendment No. 1 to Third Amended and Restated Credit Agreement (SLA) (this “Amendment”), is dated as of April 3, 2025 (the “Effective Date”), by and among Sunnova EZ-Own Portfolio, LLC, a Delaware limited liability company (the “Borrower”), Sunnova SLA Management, LLC, a Delaware limited liabilit

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 28, 2025 Sunnova Energy Int

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 28, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or

Sunnova Announces Appointment of Robyn Liska as Interim Chief Financial Officer and Provides Financial Strategy Update Liska to Help Drive Go-Forward Financial and Operational Strategy Elects to Enter Grace Period for Interest Payment Due on 11.75% S

Exhibit 99.1 PRESS RELEASE Sunnova Announces Appointment of Robyn Liska as Interim Chief Financial Officer and Provides Financial Strategy Update Liska to Help Drive Go-Forward Financial and Operational Strategy Elects to Enter Grace Period for Interest Payment Due on 11.75% Senior Unsecured Notes Due 2028 Retains Experienced Advisor Team to Support Ongoing Capital Structure Discussions with Key F

Sunnova Adopts Tax Asset Preservation Plan Designed to Protect the Availability of its Net Operating Losses

Exhibit 99.1 Sunnova Adopts Tax Asset Preservation Plan Designed to Protect the Availability of its Net Operating Losses •Board acts to preserve long-term shareholder value by adopting a Section 382 rights plan intended to protect potentially valuable tax assets HOUSTON – (BUSINESS WIRE) – March 28, 2025 – Sunnova Energy International Inc. (“Sunnova”) (NYSE: NOVA) announced today that its Board of

, 2025, between Sunnova Energy International Inc. and Computershare Trust Company, N.A., as rights agent (incorporated by reference to Exhibit 4.1 to the Company’s Current Report on Form 8-K filed on

Exhibit 4.1 Execution Version SECTION 382 RIGHTS AGREEMENT Dated as of March 28, 2025 between SUNNOVA ENERGY INTERNATIONAL INC. and COMPUTERSHARE TRUST COMPANY, N.A., as Rights Agent TABLE OF CONTENTS Page Section 1 Definitions 1 Section 2 Appointment of Rights Agent 6 Section 3 Issue of Rights Certificates 7 Section 4 Form of Rights Certificates 8 Section 5 Countersignature and Registration 9 Sec

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 28, 2025 Sunnova Energy Int

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 28, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or

Certificate of Designations of Series D Preferred Stock of Sunnova Energy International Inc., as filed with the Secretary of State of Delaware on March 28, 2025.

Exhibit 3.1 CERTIFICATE OF DESIGNATIONS of SERIES D PREFERRED STOCK of SUNNOVA ENERGY INTERNATIONAL INC. (Pursuant to Section 151 of the Delaware General Corporation Law) Sunnova Energy International Inc., a corporation organized and existing under the General Corporation Law of the State of Delaware (the “Corporation”), hereby certifies that the following resolution was adopted by the board of di

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 Sunnova Energy International Inc. (Exact name

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 30-1192746 (State or other jurisdiction of incorporation) (IRS Employer Identification No.) 20 Ea

Third Amended and Restated Credit Agreement (SLA), among Sunnova EZ-Own Portfolio, LLC, Sunnova SLA Management, LLC, Sunnova Asset Portfolio 7 Holdings, LLC, the Lenders party thereto, the Funding Agents party thereto, Atlas Securitized Products Administration, L.P., as administrative agent, Computershare Trust Company, National Association, as paying agent, and U.S. Bank, National Association, as custodian, dated as of March 20, 2025

Exhibit 10.1 Execution Version Third Amended and Restated Credit Agreement dated as of March 20, 2025 among Sunnova EZ-Own Portfolio, LLC, as Borrower Sunnova SLA Management, LLC, as Manager Sunnova SLA Management, LLC, as Servicer Sunnova Asset Portfolio 7 Holdings, LLC, as Seller Atlas Securitized Products Administration, L.P., as Administrative Agent for the Lenders Lenders from time to time pa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 20, 2025 Sunnova Energy Int

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 20, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 9, 2025 Sunnova Energy In

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 9, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 9, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or o

Form of Special Bonus Award

Exhibit 10.1 To: Date: From: Subject: Special Bonus Plan As our company navigates through some transformations aimed at enhancing our competitive edge, you have been identified as a valuable contributor to maintain the stability of the business and have been selected to participate in a special bonus opportunity. Per the terms of this offering, you may be entitled to a one-time special bonus total

Sunnova Names Paul Mathews as President and Chief Executive Officer Company Accelerates Repositioning to Drive Profitable Growth and Improve Cash Generation William J. (John) Berger Steps Down

Exhibit 99.1 Sunnova Energy International, Inc. 20 Greenway Plaza, Suite 540 Houston, Texas 77046 sunnova.com Sunnova Names Paul Mathews as President and Chief Executive Officer Company Accelerates Repositioning to Drive Profitable Growth and Improve Cash Generation William J. (John) Berger Steps Down HOUSTON – March 10, 2025 – Sunnova Energy International Inc. (“Sunnova” or the “Company”) (NYSE:

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 5, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or o

As filed with the Securities and Exchange Commission on March 5, 2025

As filed with the Securities and Exchange Commission on March 5, 2025 Registration No.

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) Sunnova Energy International Inc.

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 3, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or o

Second Amendment to Credit Agreement by and among Sunnova Inventory Supply, LLC, each of the subsidiaries of Sunnova Inventory Supply, LLC from time to time party thereto, the lenders from time to time party thereto, and Texas Capital Bank, as lender, agent and letter of credit issuer, dated as of December 30, 2024

Exhibit 10.25.2 SECOND AMENDMENT TO CREDIT AGREEMENT This SECOND AMENDMENT TO CREDIT AGREEMENT (this “Amendment”) is made and entered into on December 30, 2024 (the “Amendment Effective Date”), by and among SUNNOVA INVENTORY SUPPLY, LLC, a Delaware limited liability company (the “Borrower”), the Lenders (as defined below) party hereto, and TEXAS CAPITAL BANK, as Administrative Agent and L/C Issuer

(incorporated by reference to Exhibit 21.1 to Form 10-K filed on March 3, 2025)

Exhibit 21.1 List of Subsidiaries of Sunnova Energy International Inc. as of February 26, 2025 Name of Subsidiary Jurisdiction of Incorporation Enerlast Insurance Group, LLC Texas Helios Depositor, LLC Delaware Helios Issuer, LLC Delaware Moonroad Services Group, LLC Delaware Starlane Manager, LLC Delaware Starlane Owner, LLC Delaware Sunnova ABS Holdings III, LLC Delaware Sunnova ABS Holdings IV,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-38995 Sunnova Energy

Term Loan Agreement, by and between Sunnova Solstice Borrower, LLC, the Lenders party thereto and Wilmington Trust National Association, as Agent, dated as of March 2, 2025

Exhibit 10.1 Execution Version TERM LOAN AGREEMENT dated as of March 2, 2025 by and among SUNNOVA SOLSTICE BORROWER, LLC as Borrower THE LENDERS PARTY HERETO as Lenders and WILMINGTON TRUST, NATIONAL ASSOCIATION, as Agent TABLE OF CONTENTS Page Article VIII NEGATIVE COVENANTS 45 Section 8.01 Debt 45 Section 8.02 No Liens 45 Section 8.03 Modification of Documents 45 Section 8.04 Prohibition of Fund

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 3, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or o

SUNNOVA ENERGY INTERNATIONAL INC. CONSOLIDATED BALANCE SHEETS (in thousands, except share amounts and share par values) As of December 31, 2024 2023 Assets Current assets: Cash and cash equivalents $ 211,192 $ 212,832 Accounts receivable—trade, net 4

Exhibit 99.1 Sunnova Reports Fourth Quarter and Full Year 2024 Financial Results 2024 and Recent Highlights •Increased total cumulative solar power generation and energy storage under management to 3.0 gigawatts and 1,662 megawatt hours, respectively, as of December 31, 2024 •Grew total cash by 11% to $548 million as of December 31, 2024 •Announced a further optimization of operations estimated to

ational Association, as indenture trustee, dated as of February 21, 2025.

Exhibit 10.1 Execution Copy Sunnova SOL IX Issuer, LLC Issuer and Wilmington Trust, National Association Indenture Trustee Indenture Dated as of February 21, 2025 $295,800,000 Sunnova SOL IX Issuer, LLC Solar Asset Backed Notes, Series 2025-P1 Class A Notes and Class B Notes [***] = Certain information has been excluded from this exhibit because it is both not material and would likely cause harm

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): February 21, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): February 14, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation

Amendment No. 7 to Second Amended and Restated Credit Agreement (SLA), among Sunnova EZ-Own Portfolio, LLC, Sunnova SLA Management, LLC, Sunnova Asset Portfolio 7 Holdings, LLC, the Lenders party thereto, the Funding Agents party thereto and Atlas Securitized Products Holdings, L.P., as administrative agent, dated as of January 20, 2025 (incorporated by reference to Exhibit 10.1 to Form 8-K filed on January 24, 2025).

Exhibit 10.1 Execution Version Amendment No. 7 to Second Amended and Restated Credit Agreement (SLA) This Amendment No. 7 to Second Amended and Restated Credit Agreement (SLA) (this “Amendment”), is dated as of January 20, 2025 (the “Effective Date”), by and among Sunnova EZ-Own Portfolio, LLC, a Delaware limited liability company (the “Borrower”), Sunnova SLA Management, LLC, a Delaware limited l

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): January 20, 2025 Sunnova Energy I

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): January 20, 2025 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation o

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): December 27, 2024 Sunnova Energy

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): December 27, 2024 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation

Amendment No. 6 to Second Amended and Restated Credit Agreement (SLA), among Sunnova EZ-Own Portfolio, LLC, Sunnova SLA Management, LLC, Sunnova Asset Portfolio 7 Holdings, LLC, the Lenders party thereto, the Funding Agents party thereto and Atlas Securitized Products Holdings, L.P., as administrative agent, dated as of December 27, 2024 (incorporated by reference to Exhibit 10.1 to Form 8-K filed on January 2, 2024).

Exhibit 10.1 Execution Version Amendment No. 6 to Second Amended and Restated Credit Agreement (SLA) This Amendment No. 6 to Second Amended and Restated Credit Agreement (SLA) (this “Amendment”), is dated as of December 27, 2024 (the “Effective Date”), by and among Sunnova EZ-Own Portfolio, LLC, a Delaware limited liability company (the “Borrower”), Sunnova SLA Management, LLC, a Delaware limited

Amendment No. 5 to Second Amended and Restated Credit Agreement (SLA), among Sunnova EZ-Own Portfolio, LLC, Sunnova SLA Management, LLC, Sunnova Asset Portfolio 7 Holdings, LLC, the Lenders party thereto, the Funding Agents party thereto and Atlas Securitized Products Holdings, L.P., as administrative agent, dated as of December 18, 2024 (incorporated by reference to Exhibit 10.1 to Form 8-K filed on December 23, 2024).

Exhibit 10.1 Execution Version Amendment No. 5 to Second Amended and Restated Credit Agreement (SLA) This Amendment No. 5 to Second Amended and Restated Credit Agreement (SLA) (this “Amendment”), is dated as of December 18, 2024 (the “Effective Date”), by and among Sunnova EZ-Own Portfolio, LLC, a Delaware limited liability company (the “Borrower”), Sunnova SLA Management, LLC, a Delaware limited

Indenture, by and between Sunnova Aurora I Issuer, LLC and Wilmington Trust National Association, as indenture trustee, dated as of December 19, 2024 (incorporated by reference to Exhibit 10.2 to Form 8-K filed on December 23, 2024).

Exhibit 10.2 Execution Copy Sunnova Aurora I Issuer, LLC Issuer and Wilmington Trust, National Association Indenture Trustee Indenture Dated as of December 19, 2024 $228,200,000 Sunnova Aurora I Issuer, LLC Solar Asset Backed Notes, Series 2024-PR1 Class A Notes, Class B Notes and Class C Notes [***] = Certain information has been excluded from this exhibit because it is both not material and woul

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): December 18, 2024 Sunnova Energy

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): December 18, 2024 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): December 12, 2024 Sunnova Energy

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): December 12, 2024 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation

NOVA / Sunnova Energy International Inc. / PICTET ASSET MANAGEMENT SA - SC 13G Passive Investment

SC 13G 1 d859865dsc13g.htm SC 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.  )* Sunnova Energy International Inc (Name of Issuer) COMMON STOCK (Title of Class of Securities) 86745K104 (CUSIP Number) 2024/09/30 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to desig

NOVA / Sunnova Energy International Inc. / SYLEBRA CAPITAL LLC - SYLEBRA CAPITAL LLC Passive Investment

SC 13G 1 nova110424.htm SYLEBRA CAPITAL LLC UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 Sunnova Energy International Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 86745K104 (CUSIP Number) September 30, 2024 (Date of Event which Requires Filing of this Statement) Check the appropriate box to desig

Indenture, by and between Sunnova SOL VIII Issuer, LLC and Wilmington Trust, National Association, as indenture trustee, dated as of October 18, 2024 (incorporated by reference to Exhibit 4.4 to Form 10-Q filed on October 31, 2024).

Exhibit 4.4 Execution Version Sunnova SOL VIII Issuer, LLC Issuer and Wilmington Trust, National Association Indenture Trustee Indenture Dated as of October 18, 2024 $308,100,000 Sunnova SOL VIII Issuer, LLC Solar Asset Backed Notes, Series 2024-3 Class A Notes and Class B Notes [***] = Certain information has been excluded from this exhibit because it is both not material and would likely cause h

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-38995 Sunno

Third Amendment to Second Amended and Restated Credit Agreement, among Sunnova TEP Holdings, LLC, as borrower, Sunnova TE Management, LLC, as facility administrator, the lenders and funding agents party thereto and Atlas Securitized Products Administration, L.P., as administrative agent, dated as of October 28, 2024 (incorporated by reference to Exhibit 10.3 to Form 10-Q filed on October 31, 2024).

Exhibit 10.3 Execution Version THIRD AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT THIS THIRD AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT (this “Amendment”) is made as of this 28th day of October, 2024 (the “Effective Date”), by and among SUNNOVA TEP HOLDINGS, LLC, a Delaware limited liability company (the “Borrower”), SUNNOVA TE MANAGEMENT, LLC, a Delaware limited liabil

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): October 30, 2024 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation o

SUNNOVA ENERGY INTERNATIONAL INC. UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (in thousands, except share amounts and share par values) As of September 30, 2024 As of December 31, 2023 Assets Current assets: Cash and cash equivalents $ 208,913 $

Exhibit 99.1 Sunnova Reports Third Quarter 2024 Financial Results Third Quarter 2024 and Recent Highlights •Cash generation guidance of $100 million for 2024, $350 million for 2025, and $400 million for 2026 maintained •Revenue of $235.3 million increased 19% from the third quarter of 2023 •Monthly weighted average investment tax credit rate on origination of 40.7% in September 2024, increased to

SUNNOVA ENERGY INTERNATIONAL INC. 20 East Greenway Plaza, Suite 540 Houston, Texas 77046

Sunnova Energy International, Inc. 20 Greenway Plaza, Suite 540 Houston, TX 77046 sunnova.com SUNNOVA ENERGY INTERNATIONAL INC. 20 East Greenway Plaza, Suite 540 Houston, Texas 77046 October 15, 2024 BY EDGAR United States Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Division of Corporation Finance Attention: Robert Babula and Mark Wojciechowski Re: Sunnova Energy Int

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): August 7, 2024 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation o

Termination of a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): October 4, 2024 (October 1, 2024) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction o

Sunnova Energy International, Inc.

Sunnova Energy International, Inc. 20 Greenway Plaza, Suite 540 Houston, TX 77046 sunnova.com September 27, 2024 BY EDGAR United States Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Division of Corporation Finance Attention: Robert Babula and Mark Wojciechowski Re: Sunnova Energy International Inc. Form 10-K for the Fiscal Year ended December 31, 2023 Filed February 22

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): September 25, 2024 (September 23,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): September 25, 2024 (September 23, 2024) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdic

Sunnova Announces Appointment of Two New Independent Board Members

Exhibit 99.1 Sunnova Energy International, Inc. 20 Greenway Plaza, Suite 540 Houston, Texas 77046 sunnova.com Sunnova Announces Appointment of Two New Independent Board Members HOUSTON, September 25, 2024 – (BUSINESS WIRE)–Sunnova Energy International, Inc. ("Sunnova") (NYSE: NOVA), an industry-leading adaptive energy services company, announced today the appointment of Corbin J. Robertson, III, a

Second Amendment to Second Amended and Restated Credit Agreement, among Sunnova TEP Holdings, LLC, as borrower, Sunnova TE Management, LLC, as facility administrator, the lenders and funding agents party thereto and Atlas Securitized Products Holdings, L.P., as administrative agent, dated as of August 20, 2024 (incorporated by reference to Exhibit 10.1 to Form 8-K filed on August 22, 2024).

Exhibit 10.1 Execution Version SECOND AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT THIS SECOND AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT (this “Amendment”) is made as of this 20th day of August, 2024, by and among SUNNOVA TEP HOLDINGS, LLC, a Delaware limited liability company (the “Borrower”), SUNNOVA TE MANAGEMENT, LLC, a Delaware limited liability company, in its ca

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): August 22, 2024 (August 20, 2024) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction o

SUNNOVA ENERGY INTERNATIONAL INC. 20 East Greenway Plaza, Suite 540 Houston, Texas 77046

Sunnova Energy International, Inc. 20 Greenway Plaza, Suite 540 Houston, TX 77046 sunnova.com SUNNOVA ENERGY INTERNATIONAL INC. 20 East Greenway Plaza, Suite 540 Houston, Texas 77046 August 15, 2024 BY EDGAR United States Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Division of Corporation Finance Attention: Robert Babula and Mark Wojciechowski Re: Sunnova Energy Inte

Indenture, by and between Sunnova SOL VII Issuer, LLC and Wilmington Trust, National Association, as indenture trustee, dated as of August 7, 2024 (incorporated by reference to Exhibit 10.1 to Form 8-K filed on August 9, 2024).

EXHIBIT 10.1 EXECUTION COPY SUNNOVA SOL VII ISSUER, LLC ISSUER and WILMINGTON TRUST, NATIONAL ASSOCIATION INDENTURE TRUSTEE INDENTURE DATED AS OF AUGUST 7, 2024 $320,200,000 SUNNOVA SOL VII ISSUER, LLC SOLAR ASSET BACKED NOTES, SERIES 2024-2 CLASS A NOTES AND CLASS B NOTES [***] = Certain information has been excluded from this exhibit because it is both not material and would likely cause harm to

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): August 9, 2024 (August 7, 2024) S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): August 9, 2024 (August 7, 2024) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of

Indenture, by and between Sunnova Helios XIV Issuer, LLC and Wilmington Trust, National Association, as indenture trustee, dated as of June 28, 2024 (incorporated by reference to Exhibit 4.4 to Form 10-Q filed on August 1, 2024).

Exhibit 4.4 Execution Version Sunnova Helios XIV Issuer, LLC Issuer and Wilmington Trust, National Association Indenture Trustee Indenture Dated as of June 28, 2024 $230,900,000 Sunnova Helios XIV Issuer, LLC Loan Backed Notes, Series 2024-B KL2 3395391.6 [***] = Certain information has been excluded from this exhibit because it is both not material and would likely cause harm to the company if pu

Amendment No. 4 and Joinder to Second Amended and Restated Credit Agreement (SLA), among Sunnova EZ-Own Portfolio, LLC, as borrower, Sunnova SLA Management, LLC, as manager and servicer, Sunnova Asset Portfolio 7 Holdings, LLC, as seller and pledgor, the Lenders and Funding Agents from time to time party thereto and Atlas Securitized Products Holdings, L.P., as administrative agent, dated as of June 20, 2024 (incorporated by reference to Exhibit 10.4 to Form 10-Q filed on August 1, 2024).

Exhibit 10.4 Execution Version Amendment No. 4 and Joinder to Second Amended and Restated Credit Agreement (SLA) This Amendment No. 4 and Joinder to Second Amended and Restated Credit Agreement (SLA) (this “Amendment”), is dated as of June 20, 2024 (the “Effective Date”), by and among Sunnova EZ-Own Portfolio, LLC, a Delaware limited liability company (the “Borrower”), Sunnova SLA Management, LLC,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-38995 Sunnova En

SUNNOVA ENERGY INTERNATIONAL INC. UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (in thousands, except share amounts and share par values) As of June 30, 2024 As of December 31, 2023 Assets Current assets: Cash and cash equivalents $ 253,222 $ 212,8

Exhibit 99.1 Sunnova Reports Second Quarter 2024 Financial Results Second Quarter 2024 and Recent Highlights •Unrestricted cash increased by $21.5 million in the second quarter of 2024 •161 megawatts of solar power generation and 284 megawatt hours of energy storage under management added in the second quarter of 2024 •Total cumulative solar power generation under management increased to 2.8 gigaw

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): July 31, 2024 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or o

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): July 2, 2024 (June 28, 2024) Sunn

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): July 2, 2024 (June 28, 2024) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of inc

Amendment No. 6 to Credit Agreement, by and among Sunnova Asset Portfolio 8, LLC, as Borrower, Sunnova SLA Management, LLC, as Manager and Servicer, Sunnova Asset Portfolio 8 Holdings, LLC, as Seller (Solar Loans) and Seller (Solar Assets), Banco Popular de Puerto Rico, as Agent, the lenders party thereto, the funding agents party thereto, and U.S. Bank National Association, as Custodian, dated as of June 28, 2024 (incorporated by reference to Exhibit 10.1 to Form 8-K filed on July 2, 2024).

Exhibit 10.1 Execution Version AMENDMENT NO. 6 TO CREDIT AGREEMENT This AMENDMENT NO. 6 TO CREDIT AGREEMENT (this “Amendment”), dated as of June 28, 2024 (the “Sixth Amendment Effective Date”), is by and among SUNNOVA ASSET PORTFOLIO 8, LLC, a Delaware limited liability company (the “Borrower”), SUNNOVA SLA MANAGEMENT, LLC, a Delaware limited liability company, as manager under the Management Agre

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): June 10, 2024 (June 10, 2024) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of in

Guarantee Issuance Agreement, by and among Sunnova Hestia II Lender, LLC, Sunnova Hestia II Borrower, LLC, Sunnova ABS Management, LLC, as servicer and manager, Sunnova Energy Corporation, as sponsor, the United States Department of Energy, as guarantor, and Wilmington Trust, National Association, as agent, dated as of June 5, 2024 (incorporated by reference to Exhibit 10.2 to Form 8-K filed on June 6, 2024).

EX-10.2 Exhibit 10.2 Execution Version GUARANTEE ISSUANCE AGREEMENT dated as of June 5, 2024 among U.S. DEPARTMENT OF ENERGY as Guarantor SUNNOVA ENERGY CORPORATION as Sponsor SUNNOVA ABS MANAGEMENT, LLC as Servicer and Manager SUNNOVA HESTIA II BORROWER, LLC as Borrower SUNNOVA HESTIA II LENDER, LLC as Lender and WILMINGTON TRUST, NATIONAL ASSOCIATION as Agent Up to $152,010,000 PROJECT HESTIA, S

Loan and Security Agreement, by and among Sunnova Hestia II Lender, LLC, Sunnova Hestia II Borrower, LLC, the United States Department of Energy, as guarantor, and Wilmington Trust, National Association, as agent, dated as of June 5, 2024 (incorporated by reference to Exhibit 10.1 to Form 8-K filed on June 6, 2024).

EX-10.1 EXHIBIT 10.1 EXECUTION VERSION LOAN AND SECURITY AGREEMENT dated as of June 5, 2024 among  SUNNOVA HESTIA II BORROWER, LLC, as Borrower SUNNOVA HESTIA II LENDER, LLC as Lender WILMINGTON TRUST, NATIONAL ASSOCIATION, as Agent for the Lender and U.S. DEPARTMENT OF ENERGY, as Guarantor [***] = Certain information has been excluded from this exhibit because it is both not material and would li

Indenture, by and between Sunnova Hestia II Issuer, LLC and Wilmington Trust, National Association, as indenture trustee, dated as of June 5, 2024 (incorporated by reference to Exhibit 10.3 to Form 8-K filed on June 6, 2024).

EX-10.3 EXHIBIT 10.3 EXECUTION VERSION SUNNOVA HESTIA II ISSUER, LLC ISSUER and WILMINGTON TRUST, NATIONAL ASSOCIATION INDENTURE TRUSTEE INDENTURE Dated as of June 5, 2024 $168,900,000 SUNNOVA HESTIA II ISSUER, LLC SOLAR LOAN BACKED NOTES, SERIES 2024-GRID1 [***] = Certain information has been excluded from this exhibit because it is both not material and would likely cause harm to the company if

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): June 6, 2024 (June 5, 2024) Sunno

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): June 6, 2024 (June 5, 2024) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of inco

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): June 3, 2024 (May 28, 2024) Sunno

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): June 3, 2024 (May 28, 2024) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of inco

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 21, 2024 (May 15, 2024) Sunno

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 21, 2024 (May 15, 2024) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of inco

First Amendment to Credit Agreement by and among Sunnova Inventory Supply, LLC, each of the subsidiaries of Sunnova Inventory Supply, LLC from time to time party thereto, the lenders from time to time party thereto, and Texas Capital Bank, as lender, agent and letter of credit issuer, dated April 29, 2024 (incorporated by reference to Exhibit 10.5 to Form 10-Q filed on May 2, 2024).

Exhibit 10.5 FIRST AMENDMENT TO CREDIT AGREEMENT This FIRST AMENDMENT TO CREDIT AGREEMENT (this “Amendment”) is made and entered into on April 29, 2024 (the “Amendment Effective Date”), by and among SUNNOVA INVENTORY SUPPLY, LLC, a Delaware limited liability company (the “Borrower”), the Lenders (as defined below) party hereto, and TEXAS CAPITAL BANK, as Administrative Agent and L/C Issuer (the “A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-38995 Sunnova E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 1, 2024 Sunnova Energy Intern

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 1, 2024 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or org

SUNNOVA ENERGY INTERNATIONAL INC. UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (in thousands, except share amounts and share par values) As of March 31, 2024 As of December 31, 2023 Assets Current assets: Cash and cash equivalents $ 231,711 $ 212,

Exhibit 99.1 Sunnova Reports First Quarter 2024 Financial Results First Quarter 2024 Highlights • Deployed 27,000 customers in the first quarter of 2024; bringing total customer count to 438,500 as of March 31, 2024; • Total Adjusted Operating Expense decreased in the first quarter of 2024 compared to the prior quarter; • Unrestricted Cash increased $18.9 million in the first quarter of 2024 compa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): April 29, 2024 (April 23, 2024) S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): April 29, 2024 (April 23, 2024) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) x Definitive Proxy State

Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): April 3, 2024 (March 28, 2024) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of i

Amendment No. 3 to Second Amended and Restated Credit Agreement (SLA), by and among Sunnova EZ-Own Portfolio, LLC, Sunnova SLA Management, LLC, Sunnova Asset Portfolio 7 Holdings, LLC, the lenders and other financial institutions party thereto and Atlas Securitized Products Holdings, L.P., as administrative agent, dated as of March 28, 2024 (incorporated by reference to Exhibit 10.1 to Form 8-K filed on April 3, 2024).

EX-10.1 EXHIBIT 10.1 EXECUTION VERSION AMENDMENT NO. 3 TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT (SLA) This AMENDMENT NO. 3 TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT (this “Amendment”), is dated as of March 28, 2024 (the “Effective Date”), by and among SUNNOVA EZ-OWN PORTFOLIO, LLC, a Delaware limited liability company (the “Borrower”), SUNNOVA SLA MANAGEMENT, LLC, a Delaware limited l

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: x Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy State

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): February 26, 2024 (February 20, 2024) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdicti

2023 Form of Restricted Stock Unit Award Letter for Executive Officers

Exhibit 10.13 DATE TO: NAME FROM: John Berger RE: Restricted Stock Unit Award Sunnova Energy International Inc. (the “Company”) hereby awards to you, effective as of [•] (the “Date of Grant”), [•] restricted stock units (the “Restricted Stock Units”) evidencing the right to receive an equivalent number of shares of Common Stock, par value $0.0001 per share, subject to adjustment as provided in Sec

Sunnova Energy International Inc. Insider Trading Policy (incorporated by reference to Exhibit 19 to Form 10-K filed on February 22, 2024).

Exhibit 19 Effective Date: July 31, 2023 Supersedes: October 27, 2020 Responsibility: General Counsel Approval: General Counsel Document Number: GC - POL – 0016 SECTION Legal SUBJECT Securities Transactions and Insider Trading Policy I.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-38995 Sunnova Energy

List of Subsidiaries of the Registrant.

Exhibit 21.1 List of Subsidiaries of Sunnova Energy International Inc. as of February 19, 2024 Name of Subsidiary Jurisdiction of Incorporation Enerlast Insurance Group, LLC Texas Helios Depositor, LLC Delaware Helios Issuer, LLC Delaware Moonroad Services Group, LLC Delaware Starlane Manager, LLC Delaware Starlane Owner, LLC Delaware Sunnova ABS Holdings III, LLC Delaware Sunnova ABS Holdings IV,

Amendment No. 1 to Second Amended and Restated Credit Agreement (SLA), among Sunnova EZ-Own Portfolio, LLC, Sunnova SLA Management, LLC, Sunnova Asset Portfolio 7 Holdings, LLC, the lenders and other financial institutions party thereto and Atlas Securitized Products Holdings, L.P., as administrative agent, dated as of October 6, 2023

Exhibit 10.5.15 Amendment No. 1 to Second Amended and Restated Credit Agreement (SLA) This Amendment No. 1 to Second Amended and Restated Credit Agreement (this “Amendment”), is dated as of October 6, 2023 (the “Effective Date”) among Sunnova EZ-Own Portfolio, LLC, a Delaware limited liability company (the “Borrower”), Sunnova SLA Management, LLC, a Delaware limited liability company, as manager (

2023 Form of Premium Option Award Letter (Exercise Price 110% of Closing Price) (incorporated by reference to Exhibit 10.17 to Form 10-K filed on February 22, 2024).

Exhibit 10.17 DATE TO: NAME FROM: John Berger RE: Premium Option Grant Sunnova Energy International Inc. (the “Company”) hereby grants to you, the right and option to purchase, on the terms and conditions hereinafter set forth in Appendix A (the “Terms and Conditions”), all or any part of an aggregate of [•] shares of the Common Stock, par value $0.0001 per share, of the Company at the exercise pr

Sunnova Energy International Inc. Policy for the Recovery of Erroneously Awarded Compensation (incorporated by reference to Exhibit 97.1 to Form 10-K filed on February 22, 2024).

Exhibit 97.1 SUNNOVA ENERGY INTERNATIONAL INC. POLICY FOR THE RECOVERY OF ERRONEOUSLY AWARDED COMPENSATION 1.Purpose. The purpose of this Policy is to describe circumstances in which the Company will recover Erroneously Awarded Compensation and the process for such recovery. This Policy is intended to comply with (a) Section 954 of the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2

2023 Form of Premium Option Award Letter (Exercise Price 120% of Closing Price) (incorporated by reference to Exhibit 10.16 to Form 10-K filed on February 22, 2024).

Exhibit 10.16 DATE TO: NAME FROM: John Berger RE: Premium Option Grant Sunnova Energy International Inc. (the “Company”) hereby grants to you, the right and option to purchase, on the terms and conditions hereinafter set forth in Appendix A (the “Terms and Conditions”), all or any part of an aggregate of [•] shares of the Common Stock, par value $0.0001 per share, of the Company at the exercise pr

2023 Form of Standard Option Award Letter (incorporated by reference to Exhibit 10.15 to Form 10-K filed on February 22, 2024).

Exhibit 10.15 DATE TO: NAME FROM: John Berger RE: Option Grant Sunnova Energy International Inc. (the “Company”) hereby grants to you, the right and option to purchase, on the terms and conditions hereinafter set forth in Appendix A (the “Terms and Conditions”), all or any part of an aggregate of [•] shares of the Common Stock, par value $0.0001 per share, of the Company at the exercise price of [

SUNNOVA ENERGY INTERNATIONAL INC. CONSOLIDATED BALANCE SHEETS (in thousands, except share amounts and share par values) As of December 31, 2023 2022 Assets Current assets: Cash and cash equivalents $ 212,832 $ 360,257 Accounts receivable—trade, net 4

Exhibit 99.1 Sunnova Reports Fourth Quarter and Full Year 2023 Financial Results Fourth Quarter 2023 and Recent Highlights •Deployed over 34,000 customers in the fourth quarter; bringing total customer count to 419,200 as of December 31, 2023; •Increased single customer economics as expressed through fully burdened unlevered return; •Continued to execute a cost reduction plan for 2024 enhancing ca

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): February 21, 2024 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation

First Amendment to Second Amended and Restated Credit Agreement, among Sunnova TEP Holdings, LLC, Sunnova TE Management, LLC, Atlas Securitized Products Holdings, L.P., as administrative agent, and the lenders and other financial institutions party thereto, dated as of February 14, 2024 (incorporated by reference to Exhibit 10.3 to Form 10-K filed on February 14, 2024).

Exhibit 10.3 Execution Copy FIRST AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT THIS FIRST AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT (this “Amendment”) is made as of this 14th day of February, 2024, by and among SUNNOVA TEP HOLDINGS, LLC, a Delaware limited liability company (the “Borrower”), SUNNOVA TE MANAGEMENT, LLC, a Delaware limited liability company, in its capac

Amendment No. 2 to Second Amended and Restated Credit Agreement (SLA), among Sunnova EZ-Own Portfolio, LLC, Sunnova SLA Management, LLC, Sunnova Asset Portfolio 7 Holdings, LLC, the lenders and other financial institutions party thereto and Atlas Securitized Products Holdings, L.P., as administrative agent, dated as of February 14, 2024 (incorporated by reference to Exhibit 10.2 to Form 8-K filed on February 14, 2024).

Exhibit 10.2 Execution Version AMENDMENT NO. 2 TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT (SLA) This AMENDMENT NO. 2 TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT (this “Amendment”), is dated as of February 14, 2024 (the “Effective Date”), by and among SUNNOVA EZ-OWN PORTFOLIO, LLC, a Delaware limited liability company (the “Borrower”), SUNNOVA SLA MANAGEMENT, LLC, a Delaware limited liabil

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): February 14, 2024 (February 8, 20

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): February 14, 2024 (February 8, 2024) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdictio

Indenture, by and between Sunnova SOL VI Issuer, LLC and Wilmington Trust, National Association, as indenture trustee, dated as of February 13, 2024 (incorporated by reference to Exhibit 10.1 to Form 8-K filed on February 14, 2024).

EXHIBIT 10.1 EXECUTION COPY SUNNOVA SOL VI ISSUER, LLC ISSUER and WILMINGTON TRUST, NATIONAL ASSOCIATION INDENTURE TRUSTEE INDENTURE DATED AS OF FEBRUARY 13, 2024 $226,000,000 SUNNOVA SOL VI ISSUER, LLC SOLAR ASSET BACKED NOTES, SERIES 2024-1 CLASS A NOTES, CLASS B NOTES AND CLASS C NOTES [***] = Certain information has been excluded from this exhibit because it is both not material and would like

Exhibit 99.1 Joint Filing Agreement, amended to reflect the changes referenced in Item 2 above.

EX-99.1 2 tm245945d1ex99-1.htm EXHIBIT 99.1 EXHIBIT 99.1 – JOINT FILING AGREEMENT In accordance with the requirements of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, and subject to the limitations set forth therein, the parties set forth below agree to jointly file the Schedule 13D to which this joint filing agreement is attached, and any subsequent amendments thereto, and

NOVA / Sunnova Energy International Inc. / Newlight Partners LP - SC 13D/A Activist Investment

SC 13D/A 1 tm245945d1sc13da.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-l(a) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2(a) (Amendment No. 1)* Sunnova Energy International Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 86745K104 (CUSI

NOVA / Sunnova Energy International Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv02016-sunnovaenergyinterna.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 2)* Name of issuer: Sunnova Energy International Inc Title of Class of Securities: Common Stock CUSIP Number: 86745K104 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropria

Master Revolving Loan Agreement, by and among Sunnova Business Markets Borrower, LLC, as borrower, each subsidiary of Sunnova Business Markets Borrower, LLC from time to time party thereto, each lender from time to time party thereto and Mitsubishi HC Capital America, Inc., as administrative agent, dated as of December 27, 2023 (incorporated by reference to Exhibit 10.1 to Form 8-K filed on January 3, 2024).

EX-10.1 Exhibit 10.1 Execution Version MASTER REVOLVING LOAN AGREEMENT by and among SUNNOVA BUSINESS MARKETS BORROWER, LLC, as Borrower THE PROJECT COMPANIES FROM TIME TO TIME PARTY HERETO THE LENDERS FROM TIME TO TIME PARTY HERETO and MITSUBISHI HC CAPITAL AMERICA, INC., as Administrative Agent THREE KEYS CAPITAL ADVISORS, LLC, as Arranger Dated as of December 27, 2023 [***] = Certain information

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): January 3, 2024 (December 27, 202

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): January 3, 2024 (December 27, 2023) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): December 8, 2023 (December 4, 202

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): December 8, 2023 (December 4, 2023) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction

Loan and Security Agreement, by and among Sunnova Hestia I Lender, LLC, Sunnova Hestia I Borrower, LLC, the United States Department of Energy, as guarantor, and Wilmington Trust, National Association, as agent, dated as of November 8, 2023.

EX-10.2 EXHIBIT 10.2 EXECUTION VERSION LOAN AND SECURITY AGREEMENT dated as of November 8, 2023 among SUNNOVA HESTIA I BORROWER, LLC, as Borrower SUNNOVA HESTIA I LENDER, LLC as Lender WILMINGTON TRUST, NATIONAL ASSOCIATION, as Agent for the Lender and U.S. DEPARTMENT OF ENERGY, as Guarantor [***] = Certain information has been excluded from this exhibit because it is both not material and would l

Indenture, by and between Sunnova Hestia I Issuer, LLC and Wilmington Trust, National Association, as indenture trustee, dated as of November 8, 2023.

EX-10.4 Exhibit 10.4 Execution Version SUNNOVA HESTIA I ISSUER, LLC ISSUER and WILMINGTON TRUST, NATIONAL ASSOCIATION INDENTURE TRUSTEE INDENTURE Dated as of November 8, 2023 $244,000,000 SUNNOVA HESTIA I ISSUER, LLC SOLAR LOAN BACKED NOTES, SERIES 2023-GRID1 [***] = Certain information has been excluded from this exhibit because it is both not material and would likely cause harm to the company i

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): November 8, 2023 (November 3, 202

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): November 8, 2023 (November 3, 2023) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction

Second Amended and Restated Credit Agreement, among Sunnova TEP Holdings, LLC, Sunnova TE Management, LLC, Atlas Securitized Products Holdings, L.P., as administrative agent, and the lenders and other financial institutions party thereto, dated as of November 3, 2023 (incorporated by reference to Exhibit 10.1 to Form 8-K filed on November 8, 2023).

EX-10.1 Exhibit 10.1 Execution Version Second Amended and Restated Credit Agreement dated as of November 3, 2023 among SUNNOVA TEP HOLDINGS, LLC, as Borrower SUNNOVA TE MANAGEMENT, LLC, as Facility Administrator ATLAS SECURITIZED PRODUCTS HOLDINGS, L.P., as Administrative Agent for the financial institutions that may from time to time become parties hereto as Lenders LENDERS from time to time part

Guarantee Issuance Agreement, by and among Sunnova Hestia I Lender, LLC, Sunnova Hestia I Borrower, LLC, Sunnova ABS Management, LLC, as servicer and manager, Sunnova Energy Corporation, as sponsor, the United States Department of Energy, as guarantor, and Wilmington Trust, National Association, as agent, dated as of November 8, 2023.

EX-10.3 Exhibit 10.3 Execution Version GUARANTEE ISSUANCE AGREEMENT dated as of November 8, 2023 among U.S. DEPARTMENT OF ENERGY as Guarantor SUNNOVA ENERGY CORPORATION as Sponsor SUNNOVA ABS MANAGEMENT, LLC as Servicer and Manager SUNNOVA HESTIA I BORROWER, LLC as Borrower SUNNOVA HESTIA I LENDER, LLC as Lender and WILMINGTON TRUST, NATIONAL ASSOCIATION as Agent Up to $219,600,000 PROJECT HESTIA,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-38995 Sunno

Third Amended and Restated Bylaws of Sunnova Energy International Inc., dated as of October

Exhibit 3.3 SECONDTHIRD AMENDED AND RESTATED BYLAWS OF SUNNOVA ENERGY INTERNATIONAL, INC. (Adopted on July 29October 25, 2019) (Effective upon the closing of the Corporation’s initial public offering2023) TABLE OF CONTENTS Page ARTICLE I STOCKHOLDERS 1 1.1 Place of Meetings 1 1.2 Annual Meeting 1 1.3 Special Meetings 1 1.4 Notice of Meetings 1 1.5 Voting List 2 1.6 Quorum 2 1.7 Adjournments 3 1.8

Third Amended and Restated Bylaws of Sunnova Energy International Inc. (incorporated by reference to Exhibit 3.2 to Form 10-Q filed on October 26, 2023).

Exhibit 3.2 THIRD AMENDED AND RESTATED BYLAWS OF SUNNOVA ENERGY INTERNATIONAL, INC. (Adopted on October 25, 2023) TABLE OF CONTENTS Page ARTICLE I STOCKHOLDERS 1 1.1 Place of Meetings 1 1.2 Annual Meeting 1 1.3 Special Meetings 1 1.4 Notice of Meetings 1 1.5 Voting List 2 1.6 Quorum 2 1.7 Adjournments 3 1.8 Proxies 4 1.9 Action at Meeting 4 1.10 Advance Notice Procedures 5 1.11 Conduct of Meetings

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): October 25, 2023 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation o

SUNNOVA ENERGY INTERNATIONAL INC. UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (in thousands, except share amounts and share par values) As of September 30, 2023 As of December 31, 2022 Assets Current assets: Cash and cash equivalents $ 467,902 $

Exhibit 99.1 Sunnova Reports Third Quarter 2023 Financial Results Third Quarter 2023 and Recent Highlights •Added over 37,000 customers in the third quarter; bringing total customer count to 386,200 as of September 30, 2023; •Took several actions to increase corporate liquidity and thereby lowered our forecasted 2024 corporate capital need from $500 million to $0; •Priced our first U.S. Department

Loan Guarantee Agreement, dated as of September 27, 2023, by and among Sunnova Energy Corporation, as sponsor, Sunnova ABS Management, LLC, as servicer and manager, and the United States Department of Energy, as guarantor (incorporated by reference to Exhibit 10.1 to Form 8-K filed on September 28, 2023).

EX-10.1 Exhibit 10.1 EXECUTION VERSION LOAN GUARANTEE AGREEMENT dated as of September 27, 2023 among SUNNOVA ENERGY CORPORATION as Sponsor Sunnova ABS Management, LLC as Servicer and Manager and U.S. DEPARTMENT OF ENERGY as Guarantor PROJECT HESTIA [***] = Certain information has been excluded from this exhibit because it is both not material and would likely cause harm to the company if publicly

Regulation FD Disclosure, Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): September 28, 2023 (September 27, 2023) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdic

Sunnova Signs $3.0 Billion Loan Guarantee Agreement with U.S. Department of Energy to Expand Clean Energy Access Partial guarantee expected to support over $5 billion in Sunnova solar loan originations, reduce the company’s weighted average cost of c

EX-99.1 Exhibit 99.1 Sunnova Signs $3.0 Billion Loan Guarantee Agreement with U.S. Department of Energy to Expand Clean Energy Access Partial guarantee expected to support over $5 billion in Sunnova solar loan originations, reduce the company’s weighted average cost of capital, and generate interest savings Expands Sunnova’s reliable, clean, and affordable energy services to underserved American c

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): September 26, 2023 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation

Indenture, dated September 26, 2023, among Sunnova Energy Corporation, Sunnova Energy International Inc., Sunnova Intermediate Holdings, LLC and Wilmington Trust, National Association (incorporated by reference to Exhibit 4.1 to Form 8-K filed on September 26, 2023).

Exhibit 4.1 SUNNOVA ENERGY CORPORATION AND EACH OF THE GUARANTORS PARTY HERETO 11.750% SENIOR NOTES DUE 2028 INDENTURE Dated as of September 26, 2023 Wilmington Trust, National Association Trustee TABLE OF CONTENTS ARTICLE 1 DEFINITIONS AND INCORPORATION BY REFERENCE 1 Section 1.01 Definitions 1 Section 1.02 Other Definitions 29 Section 1.03 Trust Indenture Act 30 Section 1.04 Rules of Constructio

Sunnova Announces Pricing of Offering of $400 Million “Green Bond”

Exhibit 99.1 Sunnova Announces Pricing of Offering of $400 Million “Green Bond” HOUSTON, September 22, 2023 – Sunnova Energy Corporation (“SEC”), a wholly owned subsidiary of Sunnova Energy International Inc. (“Sunnova”), today announced the pricing of $400 million aggregate principal amount of green 11.750% senior notes due 2028 (the “notes”) in a private placement to qualified institutional buye

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): September 22, 2023 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation

Purchase Agreement, dated September 22, 2023, among Sunnova Energy Corporation, Sunnova Energy International Inc., Sunnova Intermediate Holdings, LLC and J.P. Morgan Securities LLC, as representative of the several initial purchasers named therein.

Exhibit 10.1 Execution Version Sunnova Energy Corporation $400,000,000 11.750% Senior Notes due 2028 Purchase Agreement September 22, 2023 J.P. Morgan Securities LLC As Representative of the several Purchasers listed in Schedule 1 hereto c/o J.P. Morgan Securities LLC 383 Madison Avenue New York, NY 10079 Ladies and Gentlemen: Sunnova Energy Corporation, a Delaware corporation (the “Company”), pro

Sunnova Announces Proposed Private Offering of $400 Million “Green Bond”

Exhibit 99.1 Sunnova Announces Proposed Private Offering of $400 Million “Green Bond” HOUSTON, September 20, 2023 – Sunnova Energy Corporation (“SEC”), a wholly-owned subsidiary of Sunnova Energy International Inc. (“Sunnova”), today announced that it intends to offer, subject to market conditions, $400 million aggregate principal amount of green senior notes due 2028 (the “notes”) in a private pl

Regulation FD Disclosure, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): September 20, 2023 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation

Tenth Amendment to Amended and Restated Credit Agreement, among Sunnova TEP Holdings, LLC, Sunnova TE Management, LLC, Atlas Securitized Products Holdings, L.P., as administrative agent, and the lenders and other financial institutions party thereto, dated as of August 31, 2023 (incorporated by reference to Exhibit 10.2 to Form 8-K filed on September 6, 2023).

EX-10.2 Exhibit 10.2 Execution Version TENTH AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT THIS TENTH AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT (this “Amendment”) is made as of this 31st day of August, 2023, by and among SUNNOVA TEP HOLDINGS, LLC, a Delaware limited liability company (the “Borrower”), SUNNOVA TE MANAGEMENT, LLC, a Delaware limited liability company, in its capacity a

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): September 6, 2023 (August 30, 202

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): September 6, 2023 (August 30, 2023) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction

Indenture, by and between Helios XII Issuer, LLC and Wilmington Trust, National Association, as indenture trustee, dated as of August 30, 2023 (incorporated by reference to Exhibit 10.1 to Form 8-K filed on September 6, 2023).

EX-10.1 Exhibit 10.1 Execution Version SUNNOVA HELIOS XII ISSUER, LLC ISSUER and WILMINGTON TRUST, NATIONAL ASSOCIATION INDENTURE TRUSTEE INDENTURE Dated as of August 30, 2023 $242,700,000 SUNNOVA HELIOS XII ISSUER, LLC SOLAR LOAN BACKED NOTES, SERIES 2023-B [***] = Certain information has been excluded from this exhibit because it is both not material and would likely cause harm to the company if

Credit Agreement, by and among Sunnova Asset Portfolio 9, LLC, Sunnova SLA Management, LLC, Sunnova Asset Portfolio 9 Holdings, LLC, the lenders and other financial institutions party thereto and Citibank, N.A., as administrative agent, dated as of September 5, 2023 (incorporated by reference to Exhibit 10.3 to Form 8-K filed on September 6, 2023).

EX-10.3 Exhibit 10.3 Execution Version CREDIT AGREEMENT DATED AS OF SEPTEMBER 5, 2023 AMONG SUNNOVA ASSET PORTFOLIO 9, LLC, AS BORROWER SUNNOVA SLA MANAGEMENT, LLC, AS SERVICER SUNNOVA ASSET PORTFOLIO 9 HOLDINGS, LLC, AS SELLER LENDERS FROM TIME TO TIME PARTY HERETO FUNDING AGENTS FROM TIME TO TIME PARTY HERETO CITIBANK, N.A., AS ADMINISTRATIVE AGENT FOR THE LENDERS U.S. BANK TRUST COMPANY, NATION

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): August 21, 2023 (August 16, 2023) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction o

Amendment No. 5 to Credit Agreement, by and among Sunnova Asset Portfolio 8, LLC, as Borrower, Sunnova SLA Management, LLC, as Manager and Servicer, Sunnova Asset Portfolio 8 Holdings, LLC, as Seller (Solar Loans) and Seller (Solar Assets), Banco Popular de Puerto Rico, as Agent, the lenders party thereto, the funding agents party thereto, and U.S. Bank National Association, as Custodian, dated as of August 16, 2023 (incorporated by reference to Exhibit 10.1 to Form 8-K filed on August 21, 2023).

Exhibit 10.1 Execution Version AMENDMENT NO. 5 TO CREDIT AGREEMENT This AMENDMENT NO. 5 TO CREDIT AGREEMENT (this “Amendment”) is dated as of August 16, 2023 (the “Fifth Amendment Effective Date”) among SUNNOVA ASSET PORTFOLIO 8, LLC, a Delaware limited liability company (the “Borrower”), SUNNOVA SLA MANAGEMENT, LLC, a Delaware limited liability company, as manager under the Management Agreement (

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): August 16, 2023 (August 14, 2023) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction o

Underwriting Agreement, dated as of August 14, 2023, by and among Sunnova Energy International Inc. and Goldman Sachs & Co. LLC as representative of the several underwriters listed in Schedule 1 thereto.

Exhibit 1.1 Execution Version Sunnova Energy International Inc. 5,100,000 Shares of Common Stock Underwriting Agreement August 14, 2023 Goldman Sachs & Co. LLC As Representative of the several Underwriters listed in Schedule 1 hereto c/o Goldman Sachs & Co. LLC 200 West Street New York, NY 10282 Ladies and Gentlemen: Sunnova Energy International Inc., a Delaware corporation (the “Company”), propos

Calculation of Filing Fee Tables (Form Type) Sunnova Energy International Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry F

Exhibit 107 Calculation of Filing Fee Tables 424(b)(5) (Form Type) Sunnova Energy International Inc.

SUNNOVA ENERGY INTERNATIONAL INC. 5,100,000 Shares of Common Stock

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-273466 PROSPECTUS SUPPLEMENT (TO PROSPECTUS DATED JULY 27, 2023) SUNNOVA ENERGY INTERNATIONAL INC. 5,100,000 Shares of Common Stock This prospectus supplement relates to the public offering by Sunnova Energy International Inc. (“SEI”) of 5,100,000 shares of its common stock. Our common stock is listed on the New York Stock Exc

Subject to completion, dated August 14, 2023

424B5 Table of Contents The information in this preliminary prospectus supplement is not complete and may be changed.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): August 7, 2023 (August 2, 2023) S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): August 7, 2023 (August 2, 2023) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of

Second Amended and Restated Credit Agreement, among Sunnova EZ-Own Portfolio, LLC, Sunnova SLA Management, LLC, Sunnova Asset Portfolio 7 Holdings, LLC, the lenders and other financial institutions party thereto and Atlas Securitized Products Holdings, L.P., as administrative agent, dated as of August 2, 2023 (incorporated by reference to Exhibit 10.1 to Form 8-K filed on August 7, 2023).

EX-10.1 Exhibit 10.1 EXECUTION VERSION SECOND AMENDED AND RESTATED CREDIT AGREEMENT dated as of August 2, 2023 among SUNNOVA EZ-OWN PORTFOLIO, LLC, as Borrower SUNNOVA SLA MANAGEMENT, LLC, as Manager SUNNOVA SLA MANAGEMENT, LLC, as Servicer SUNNOVA ASSET PORTFOLIO 7 HOLDINGS, LLC, as Seller ATLAS SECURITIZED PRODUCTS HOLDINGS, L.P., as Administrative Agent for the Lenders LENDERS from time to time

Amendment to Earnout Agreement, dated as of June 22, 2023, by and among Lenx, LLC, and Sunnova Energy International Inc. (incorporated by reference to Exhibit 10.2 to Form 10-Q filed on July 27, 2023).

Exhibit 10.2 AMENDMENT TO EARNOUT AGREEMENT This is an amendment agreement (this “Agreement”) dated June 22, 2023, amending the Earnout Agreement dated as of February 17, 2021 (the “Earnout Agreement”) by and between LEN X, LLC, a Florida limited liability company, and Sunnova Energy International Inc., a Delaware corporation, as follows: 1.Section 2.1(c) of the Earnout Agreement is amended to cha

As filed with the Securities and Exchange Commission on July 27, 2023

S-3ASR Table of Contents As filed with the Securities and Exchange Commission on July 27, 2023 Registration Statement No.

Calculation of Filing Fee Tables

EX-FILING FEES Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) Sunnova Energy International Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-38995 Sunnova En

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): July 26, 2023 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or o

SUNNOVA ENERGY INTERNATIONAL INC. UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (in thousands, except share amounts and share par values) As of June 30, 2023 As of December 31, 2022 Assets Current assets: Cash and cash equivalents $ 187,331 $ 360,2

Exhibit 99.1 Sunnova Reports Second Quarter 2023 Financial Results Second Quarter 2023 and Recent Highlights •Added over 39,000 customers in the second quarter; bringing total customer count to 348,600 as of June 30, 2023; •Raised full year 2023 customer additions guidance range to between 135,000 to 145,000; •Expanding 24-hour service from current four to seven markets by year-end, covering an es

Amendment No. 4 to Credit Agreement, by and among Sunnova Asset Portfolio 8, LLC, as Borrower, Sunnova SLA Management, LLC, as Manager and Servicer, Sunnova Asset Portfolio 8 Holdings, LLC, as Seller (Solar Loans) and Seller (Solar Assets), Banco Popular de Puerto Rico, as Agent, and the lenders party thereto, dated as of June 8, 2023 (incorporated by reference to Exhibit 10.1 to Form 8-K filed on June 12, 2023).

EX-10.1 Exhibit 10.1 Execution Version AMENDMENT NO. 4 TO CREDIT AGREEMENT This AMENDMENT NO. 4 TO CREDIT AGREEMENT (this “Amendment”) is dated as of June 8, 2023 (the “Fourth Amendment Effective Date”) among SUNNOVA ASSET PORTFOLIO 8, LLC, a Delaware limited liability company (the “Borrower”), SUNNOVA SLA MANAGEMENT, LLC, a Delaware limited liability company, as manager under the Management Agree

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): June 12, 2023 (June 8, 2023) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of inc

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 18, 2023 (May 17, 2023) Sunno

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 18, 2023 (May 17, 2023) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of inco

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 16, 2023 Sunnova Energy Inter

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 16, 2023 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or or

Indenture, by and between Helios XI Issuer, LLC and Wilmington Trust, National Association, as indenture trustee, dated as of May 16, 2023 (incorporated by reference to Exhibit 10.1 to Form 8-K filed on May 16, 2023).

EX-10.1 Exhibit 10.1 EXECUTION VERSION SUNNOVA HELIOS XI ISSUER, LLC ISSUER and WILMINGTON TRUST, NATIONAL ASSOCIATION INDENTURE TRUSTEE INDENTURE Dated as of May 16, 2023 $286,700,000 SUNNOVA HELIOS XI ISSUER, LLC SOLAR LOAN BACKED NOTES, SERIES 2023-A [***] = Certain information has been excluded from this exhibit because it is both not material and would likely cause harm to the company if publ

Assignment Agreement, by and among Sunnova TEP Holdings, LLC, as borrower, Credit Suisse AG, Cayman Islands Branch, as assignor, Atlas Securitized Products Funding 1, L.P., as assignee, and Credit Suisse AG, New York Branch, as administrative agent, dated as of March 27, 2023 (incorporated by reference to Exhibit 10.11 to Form 10-Q filed on April 27, 2023).

Exhibit 10.11 ASSIGNMENT AGREEMENT This Assignment Agreement (the “Assignment Agreement”) is dated as of the Effective Date set forth below and is entered into by and between the Assignor identified in item 1 below (the “Assignor”) and the Assignee identified in item 2 below (the “Assignee”). Capitalized terms used but not defined herein shall have the meanings given to them in the Credit Agreemen

Resignation and Appointment of Agent Agreement and Assignment of Financing Documents, dated as of March 27, 2023, by and among Credit Suisse AG, New York Branch, as administrative agent, Atlas Securitized Products Holdings, L.P., as successor agent, Sunnova TEP Holdings, LLC, as borrower, Sunnova TE Management, LLC, as facility administrator, and the lenders and other financial institutions party thereto (incorporated by reference to Exhibit 10.7 to Form 10-Q filed on April 27, 2023).

Exhibit 10.7 RESIGNATION AND APPOINTMENT OF AGENT AGREEMENT AND ASSIGNMENT OF FINANCING DOCUMENTS This Resignation and Appointment of Agent Agreement and Assignment of Financing Documents (this “Agreement”), dated as of March 27, 2023 (the “Effective Date”), by and among Credit Suisse AG, New York Branch (“Credit Suisse”), in its capacity as Administrative Agent (as such term is defined below), At

Assignment and Assumption Agreement, by and among Sunnova EZ-Own Portfolio, LLC, as borrower, Credit Suisse AG, Cayman Islands Branch, as assignor, Atlas Securitized Products Funding 1, L.P., as assignee, and Credit Suisse AG, New York Branch, as agent, dated as of March 27, 2023 (incorporated by reference to Exhibit 10.10 to Form 10-Q filed on April 27, 2023).

Exhibit 10.10 ASSIGNMENT AND ASSUMPTION AGREEMENT This Assignment and Assumption Agreement (this “Assignment”) is dated as of the Effective Date set forth below and is entered into by and between Credit Suisse AG, Cayman Islands Branch (the “Assignor”) and Atlas Securitized Products Funding 1, L.P. (the “Assignee”). Capitalized terms used but not defined herein shall have the meanings given to the

Resignation and Appointment of Agent Agreement and Assignment of Financing Documents, dated as of March 27, 2023, by and among Credit Suisse AG, New York Branch, as agent, Atlas Securitized Products Holdings, L.P., as successor agent, Sunnova EZ-Own Portfolio, LLC, as borrower, Sunnova SLA Management, LLC, as manager and servicer, Sunnova Asset Portfolio 7 Holdings, LLC, as seller and pledgor, and the lenders party thereto (incorporated by reference to Exhibit 10.6 to Form 10-Q filed on April 27, 2023).

Exhibit 10.6 RESIGNATION AND APPOINTMENT OF AGENT AGREEMENT AND ASSIGNMENT OF FINANCING DOCUMENTS This Resignation and Appointment of Agent Agreement and Assignment of Financing Documents (this “Agreement”), dated as of March 27, 2023 (the “Effective Date”), by and among Credit Suisse AG, New York Branch (“Credit Suisse”), in its capacity as Agent (as such term is defined below), Atlas Securitized

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-38995 Sunnova E

Sunnova Energy International Inc. Retirement Policy for Equity Awards, adopted March 15, 2023 (incorporated by reference to Exhibit 10.3 to Form 10-Q filed on April 27, 2023).

Exhibit 10.3 Sunnova Energy International Inc. Retirement Policy for Equity Awards Approved and Adopted March 15, 2023 By the Board of Directors Purpose Sunnova Energy International Inc. and its subsidiaries (collectively, “Sunnova” or the “Company”) has adopted this Retirement Policy for Equity Awards (the “Policy”) to provide retirement benefits to Sunnova executives whose employment terminates

Retirement and Transition Agreement, dated March 15, 2023, by and among Walter A. Baker and Sunnova Energy International Inc.

Exhibit 10.4 RETIREMENT AND TRANSITION AGREEMENT This Retirement and Transition Agreement (this “Agreement”) is made effective as of March 15, 2023 (the “Effective Date”) by and between Walter A. Baker (“Executive”) and Sunnova Energy International Inc., a Delaware corporation (the “Company”). Executive and the Company are sometimes referred to individually as a “Party” and collectively as the “Pa

Indenture, by and between Sunnova Sol V Issuer, LLC and Wilmington Trust, National Association, as indenture trustee, dated as of April 26, 2023 (incorporated by reference to Exhibit 10.1 to Form 8-K filed on April 26, 2023).

EX-10.1 EXHIBIT 10.1 EXECUTION VERSION SUNNOVA SOL V ISSUER, LLC ISSUER and WILMINGTON TRUST, NATIONAL ASSOCIATION INDENTURE TRUSTEE INDENTURE DATED AS OF APRIL 26, 2023 $323,500,000 SUNNOVA SOL V ISSUER, LLC SOLAR ASSET BACKED NOTES, SERIES 2023-1 CLASS A NOTES AND CLASS B NOTES [***] = Certain information has been excluded from this exhibit because it is both not material and would likely cause

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): April 26, 2023 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or

SUNNOVA ENERGY INTERNATIONAL INC. UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (in thousands, except share amounts and share par values) As of March 31, 2023 As of December 31, 2022 2023 2022 Assets Current assets: Cash and cash equivalents $ 210,

Exhibit 99.1 Sunnova Reports First Quarter 2023 Financial Results First Quarter 2023 and Recent Highlights •Added 30,100 customers in the first quarter; bringing total customer count to 309,300 as of March 31, 2023; •Raised full year 2023 customer additions guidance range to between 125,000 to 135,000; •Bolstered liquidity through $500 million in expanded warehouse capacity and $324 million in new

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): April 26, 2023 Sunnova Energy Int

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): April 26, 2023 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) x Definitive Proxy State

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): April 5, 2023 (April 3, 2023) Sun

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): April 5, 2023 (April 3, 2023) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of in

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 31, 2023 (March 29, 2023) S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 31, 2023 (March 29, 2023) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of

Ninth Amendment to Amended and Restated Credit Agreement, among Sunnova TEP Holdings, LLC, Sunnova TE Management, LLC, Atlas Securitized Products Holdings, L.P., as administrative agent, and the lenders and other financial institutions party thereto, dated as of March 29, 2023 (incorporated by reference to Exhibit 10.1 to Form 8-K filed March 31, 2023).

EX-10.1 Exhibit 10.1 Execution Copy NINTH AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT THIS NINTH AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT (this “Amendment”) is made as of this 29th day of March, 2023, by and among SUNNOVA TEP HOLDINGS, LLC, a Delaware limited liability company (the “Borrower”), SUNNOVA TE MANAGEMENT, LLC, a Delaware limited liability company, in its capacity as fa

Amendment No. 13 to Amended and Restated Credit Agreement (SLA), among Sunnova EZ-Own Portfolio, LLC, Sunnova SLA Management, LLC, Sunnova Asset Portfolio 7 Holdings, LLC, the lenders and other financial institutions party thereto and Atlas Securitized Products Holdings, L.P., as agent, dated as of March 30, 2023 (incorporated by reference to Exhibit 10.2 to Form 8-K filed March 31, 2023).

EX-10.2 Exhibit 10.2 Execution Version AMENDMENT NO. 13 TO AMENDED AND RESTATED CREDIT AGREEMENT (SLA) This AMENDMENT NO. 13 TO AMENDED AND RESTATED CREDIT AGREEMENT (this “Amendment”), is dated as of March 30, 2023 (the “Effective Date”) among SUNNOVA EZ-OWN PORTFOLIO, LLC, a Delaware limited liability company (the “Borrower”), SUNNOVA SLA MANAGEMENT, LLC, a Delaware limited liability company, as

Amendment No. 3 to Credit Agreement, by and among Sunnova Asset Portfolio 8, LLC, as Borrower, Sunnova SLA Management, LLC, as Manager and Servicer, Sunnova Asset Portfolio 8 Holdings, LLC, as Seller (Solar Loans) and Seller (Solar Assets), and Banco Popular de Puerto Rico, as Agent and Lender, dated as of March 24, 2023 (incorporated by reference to Exhibit 10.1 to Form 8-K filed on March 27, 2023).

EX-10.1 Exhibit 10.1 Execution Version AMENDMENT NO. 3 TO CREDIT AGREEMENT This AMENDMENT NO. 3 TO CREDIT AGREEMENT (this “Amendment”) is dated as of March 24, 2023 (the “Third Amendment Effective Date”) among SUNNOVA ASSET PORTFOLIO 8, LLC, a Delaware limited liability company (the “Borrower”), SUNNOVA SLA MANAGEMENT, LLC, a Delaware limited liability company, as manager under the Management Agre

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 27, 2023 (March 24, 2023) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of

Credit Agreement, by and among Sunnova Inventory Supply, LLC, the Guarantors party thereto, the lenders and other financial institutions party thereto, and Texas Capital Bank, as administrative agent, dated as of March 10, 2023 (incorporated by reference to Exhibit 10.1 to Form 8-K filed on March 16, 2023).

EX-10.1 Exhibit 10.1 Execution Version CREDIT AGREEMENT among SUNNOVA INVENTORY SUPPLY, LLC, as Borrower, THE GUARANTORS FROM TIME TO TIME PARTY HERETO, THE LENDERS FROM TIME TO TIME PARTY HERETO, and TEXAS CAPITAL BANK, as Administrative Agent and L/C Issuer TCBI SECURITIES, INC., as Sole Lead Arranger and Sole Book Runner DATED AS OF MARCH 10, 2023 [***] = Certain information has been excluded f

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 16, 2023 (March 10, 2023) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 1, 2023 (February 24, 2023)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 1, 2023 (February 24, 2023) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction o

Amendment No. 12 to Amended and Restated Credit Agreement (SLA), among Sunnova EZ-Own Portfolio, LLC, Sunnova SLA Management, LLC, Sunnova Asset Portfolio 7 Holdings, LLC, the lenders and other financial institutions party thereto and Credit Suisse AG, New York Branch, as agent, dated as of February 24, 2023 (incorporated by reference to Exhibit 10.1 to Form 8-K filed on March 1, 2023).

EX-10.1 Exhibit 10.1 Execution Version AMENDMENT NO. 12 TO AMENDED AND RESTATED CREDIT AGREEMENT (SLA) This AMENDMENT NO. 12 TO AMENDED AND RESTATED CREDIT AGREEMENT (this “Amendment”), is dated as of February 24, 2023 (the “Effective Date”) among SUNNOVA EZ-OWN PORTFOLIO, LLC, a Delaware limited liability company (the “Borrower”), SUNNOVA SLA MANAGEMENT, LLC, a Delaware limited liability company,

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): February 27, 2023 (February 21, 2023) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdicti

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-38995 Sunnova Energy

List of subsidiaries of the Registrant.

Exhibit 21.1 List of Subsidiaries of Sunnova Energy International Inc. as of February 20, 2023 Name of Subsidiary Jurisdiction of Incorporation Enerlast Insurance Group, LLC Texas Helios Depositor, LLC Delaware Helios Issuer, LLC Delaware Moonroad Services Group, LLC Delaware Starlane Manager, LLC Delaware Starlane Owner, LLC Delaware Sunnova ABS Holdings III, LLC Delaware Sunnova ABS Holdings IV,

Indenture, dated November 10, 2022, by and among Sunnova Helios X Issuer, LLC and Wilmington Trust, National Association (incorporated by reference to Exhibit 4.22 to Form 10-K filed on February 23, 2023).

Exhibit 4.22 EXECUTION VERSION Sunnova Helios X Issuer, LLC Issuer and Wilmington Trust, National Association Indenture Trustee Indenture Dated as of November 10, 2022 $235,700,000 Sunnova Helios X Issuer, LLC Solar Loan Backed Notes, Series 2022-C [***] = Certain information has been excluded from this exhibit because it is both not material and would likely cause harm to the company if publicly

Note Purchase Agreement, dated November 3, 2022, among Sunnova Helios X Issuer, LLC, Sunnova Energy Corporation, Sunnova Helios X Depositor, LLC and Credit Suisse Securities (USA) LLC (incorporated by reference to Exhibit 10.19 to Form 10-K filed on February 23, 2023).

Exhibit 10.19 EXECUTION COPY SUNNOVA HELIOS X ISSUER, LLC SOLAR LOAN BACKED NOTES, SERIES 2022-C $103,400,000 5.30% Solar Loan Backed Notes, Series 2022-C, Class A $80,600,000 5.60% Solar Loan Backed Notes, Series 2022-C, Class B NOTE PURCHASE AGREEMENT November 3, 2022 CREDIT SUISSE SECURITIES (USA) LLC Eleven Madison Avenue, 4th Floor New York, New York 10010-3629 Ladies and Gentlemen: Section 1

SUNNOVA ENERGY INTERNATIONAL INC. CONSOLIDATED BALANCE SHEETS (in thousands, except share amounts and share par values) As of December 31, 2022 2021 Assets Current assets: Cash and cash equivalents $ 360,257 $ 243,101 Accounts receivable—trade, net 2

Exhibit 99.1 Sunnova Reports Fourth Quarter and Full Year 2022 Financial Results Fourth Quarter 2022 Highlights •Added 33,000 customers in the fourth quarter and 87,000 for the full year; •Reaffirmed full year 2023 guidance and our major metric growth plan, the Triple-Double Triple Plan; •Increased single customer economics as expressed through our fully burdened unlevered return. HOUSTON, Februar

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): February 22, 2023 Sunnova Energy

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): February 22, 2023 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation

NOVA / Sunnova Energy International Inc / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01987-sunnovaenergyinterna.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 1)* Name of issuer: Sunnova Energy International Inc. Title of Class of Securities: Common Stock CUSIP Number: 86745K104 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropri

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): November 23, 2022 (November 18, 2022) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdicti

Amendment No. 2 to Credit Agreement, by and among Sunnova Asset Portfolio 8, LLC, Sunnova SLA Management, LLC, Sunnova Asset Portfolio 8 Holdings, LLC, Banco Popular de Puerto Rico, and U.S. Bank National Association, dated as of November 18, 2022 (incorporated by reference to Exhibit 10.1 to Form 8-K filed on November 23, 2022).

Exhibit 10.1 Execution Version AMENDMENT NO. 2 TO CREDIT AGREEMENT This AMENDMENT NO. 2 TO CREDIT AGREEMENT (this ?Amendment?) is dated as of November 18, 2022 (the ?Second Amendment Effective Date?) among SUNNOVA ASSET PORTFOLIO 8, LLC, a Delaware limited liability company (the ?Borrower?), SUNNOVA SLA MANAGEMENT, LLC, a Delaware limited liability company, as manager under the Management Agreemen

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): November 10, 2022 (November 10, 2022) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdicti

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): November 8, 2022 (November 3, 2022) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction

Sunnova Energy Corporation, Sunnova Helios IX Depositor, LLC and Credit Suisse Securities (USA) LLC.

Exhibit 10.3 SUNNOVA HELIOS IX ISSUER, LLC SOLAR LOAN BACKED NOTES, SERIES 2022-B $178,000,000 5.00% Solar Loan Backed Notes, Series 2022-B, Class A $49,700,000 6.00% Solar Loan Backed Notes, Series 2022-B, Class B NOTE PURCHASE AGREEMENT August 12, 2022 CREDIT SUISSE SECURITIES (USA) LLC Eleven Madison Avenue, 4th Floor New York, New York 10010-3629 Ladies and Gentlemen: Section 1.Introductory. S

Indenture, dated August 17, 2022, by and among Sunnova Helios IX Issuer, LLC and Wilmington Trust, National Association (incorporated by reference to Exhibit 4.1 to Form 10-Q filed on October 27, 2022).

Exhibit 4.1 Sunnova Helios IX Issuer, LLC Issuer and Wilmington Trust, National Association Indenture Trustee Indenture Dated as of August 17, 2022 $227,700,000 Sunnova Helios IX Issuer, LLC Solar Loan Backed Notes, Series 2022-B [***] = Certain information has been excluded from this exhibit because it is both not material and would likely cause competitive harm to the company if publicly disclos

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-38995 Sunno

SUNNOVA ENERGY INTERNATIONAL INC. UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (in thousands, except share amounts and share par values) As of September 30, 2022 As of December 31, 2021 Assets Current assets: Cash and cash equivalents $ 412,581 $

Exhibit 99.1 Sunnova Reports Third Quarter 2022 Financial Results Third Quarter 2022 Highlights ?Added 21,800 customers in the third quarter of 2022, bringing total customer count to 246,600 as of September 30, 2022; ?Reinforced liquidity through a convertible debt raise, satisfying our projected corporate capital needs given our current growth plans; ?Increased single customer economics as expres

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): October 26, 2022 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation o

Eighth Amendment to Amended and Restated Credit Agreement, among Sunnova TEP Holdings, LLC, Sunnova TE Management, LLC, Credit Suisse AG, New York Branch, as administrative agent, and the lenders and other financial institutions party thereto, dated as of October 7, 2022 (incorporated by reference to Exhibit 10.1 to Form 8-K filed on October 12, 2022).

Exhibit 10.1 Execution Version EIGHTH AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT THIS EIGHTH AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT (this ?Amendment?) is made as of this 7th day of October, 2022, by and among SUNNOVA TEP HOLDINGS, LLC, a Delaware limited liability company (the ?Borrower?), SUNNOVA TE MANAGEMENT, LLC, a Delaware limited liability company, in its capacity as faci

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): October 12, 2022 (October 7, 2022) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction

Amendment No. 11 to the Amended and Restated Credit Agreement and Omnibus Amendment No. 3 (SLA), among Sunnova EZ-Own Portfolio, LLC, Sunnova SLA Management, LLC, Sunnova Asset Portfolio 7 Holdings, LLC, the Lenders party thereto, the Funding Agents party thereto, Wells Fargo Bank, National Association and Credit Suisse AG, New York Branch, dated as of September 28, 2022 (incorporated by reference to Exhibit 10.1 to Form 8-K filed on September 30, 2022).

Exhibit 10.1 Execution Version AMENDMENT NO. 11 TO AMENDED AND RESTATED CREDIT AGREEMENT AND OMNIBUS AMENDMENT NO. 3 (SLA) This AMENDMENT NO. 11 TO AMENDED AND RESTATED CREDIT AGREEMENT AND OMNIBUS AMENDMENT NO. 3 (SLA) (this ?Amendment?), is dated as of September 28, 2022 (the ?Effective Date?) among SUNNOVA EZ-OWN PORTFOLIO, LLC, a Delaware limited liability company (the ?Borrower?), SUNNOVA SLA

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): September 30, 2022 (September 28, 2022) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdic

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): September 8, 2022 (September 6, 2022) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdicti

Seventh Amendment to Amended and Restated Credit Agreement, among Sunnova TEP Holdings, LLC, Sunnova TE Management, LLC, Credit Suisse AG, New York Branch, as administrative agent, the lenders and other financial institutions party thereto, dated as of September 6, 2022 (incorporated by reference to Exhibit 10.1 to Form 8-K filed on September 8, 2022).

Exhibit 10.1 SEVENTH AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT THIS SEVENTH AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT (this ?Amendment?) is made as of this 6th day of September, 2022, by and among SUNNOVA TEP HOLDINGS, LLC, a Delaware limited liability company (the ?Borrower?), SUNNOVA TE MANAGEMENT, LLC, a Delaware limited liability company, in its capacity as facility administr

Indenture, dated August 19, 2022, between Sunnova Energy International Inc. and Wilmington Trust, National Association.

EX-4.1 2 d365185dex41.htm EX-4.1 Exhibit 4.1 Execution Version SUNNOVA ENERGY INTERNATIONAL INC. AND WILMINGTON TRUST, NATIONAL ASSOCIATION, as Trustee INDENTURE Dated as of August 19, 2022 2.625% Convertible Senior Notes due 2028 TABLE OF CONTENTS PAGE ARTICLE 1 DEFINITIONS Section 1.01. Definitions 1 Section 1.02. References to Interest 13 Section 1.03. Electronic Signatures 13 ARTICLE 2 ISSUE,

Purchase Agreement, dated August 16, 2022, by and among Sunnova Energy International Inc. and J.P. Morgan Securities LLC, as representative of the several initial purchasers named therein.

Exhibit 10.1 Execution Version Sunnova Energy International Inc. $500,000,000 2.625% Convertible Senior Notes due 2028 Purchase Agreement August 16, 2022 J.P. Morgan Securities LLC As Representative of the several Purchasers listed in Schedule 1 hereto c/o J.P. Morgan Securities LLC 383 Madison Avenue New York, NY 10179 Ladies and Gentlemen: Sunnova Energy International Inc., a Delaware corporatio

Sunnova Announces Pricing of Upsized Offering of $500 Million of 2.625% Convertible Senior Notes

Exhibit 99.1 Sunnova Announces Pricing of Upsized Offering of $500 Million of 2.625% Convertible Senior Notes HOUSTON, August 16, 2022 (BUSINESSWIRE) ? Sunnova Energy International Inc. (?Sunnova?) (NYSE: NOVA) today announced the pricing of $500 million aggregate principal amount of 2.625% convertible senior notes due 2028 (the ?notes?) in a private placement to qualified institutional buyers pur

Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): August 19, 2022 (August 16, 2022) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction o

Form of Capped Call Confirmation (incorporated by reference to Exhibit 10.2 to Form 8-K filed on August 19, 2022).

Exhibit 10.2 []1 To: Sunnova Energy International Inc. 20 East Greenway Plaza Suite 540 Houston, Texas 77046 Attention: Chief Financial Officer Telephone No.: (281) 892-1588 From: [] Re: [Base]2[Additional]3 Capped Call Transaction Ref. No: []4 Date: [], 2022 Dear Ladies and Gentlemen: The purpose of this communication (this ?Confirmation?) is to set forth the terms and conditions of the above-ref

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): August 18, 2022 (August 17, 2022) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction o

Sunnova Announces Proposed Private Offering of $425 Million of Convertible Senior Notes

Exhibit 99.1 Sunnova Announces Proposed Private Offering of $425 Million of Convertible Senior Notes HOUSTON, August 15, 2022 (BUSINESSWIRE) ? Sunnova Energy International Inc. (?Sunnova?) (NYSE: NOVA) today announced that it intends to offer, subject to market conditions, $425 million aggregate principal amount of convertible senior notes due 2028 (the ?notes?) in a private placement to qualified

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): August 15, 2022 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): August 15, 2022 (August 12, 2022) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction o

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): August 8, 2022 (August 5, 2022) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of

Amendment No. 10 to the Amended and Restated Credit Agreement and Omnibus Amendment No. 2 (SLA), among Sunnova EZ-Own Portfolio, LLC, Sunnova SLA Management, LLC, Sunnova Asset Portfolio 7 Holdings, LLC, the Lenders party thereto, the Funding Agents party thereto, Wells Fargo Bank, National Association and Credit Suisse AG, New York Branch, dated as of August 5, 2022 (incorporated by reference to Exhibit 10.1 to Form 8-K filed on August 8, 2022).

Exhibit 10.1 Execution Version AMENDMENT NO. 10 TO AMENDED AND RESTATED CREDIT AGREEMENT AND OMNIBUS AMENDMENT NO. 2 (SLA) This AMENDMENT NO. 10 TO AMENDED AND RESTATED CREDIT AGREEMENT AND OMNIBUS AMENDMENT NO. 2 (SLA) (this ?Amendment?), is dated as of August 5, 2022 (the ?Effective Date?) among SUNNOVA EZ-OWN PORTFOLIO, LLC, a Delaware limited liability company (the ?Borrower?), SUNNOVA SLA MAN

Indenture, dated June 27, 2022, between Sunnova Sol IV Issuer, LLC and Wilmington Trust, National Association (incorporated by reference to Exhibit 4.1 to Form 10-Q filed on July 28, 2022).

Exhibit 4.1 Sunnova Sol IV Issuer, LLC Issuer and Wilmington Trust, National Association Indenture Trustee Indenture Dated as of June 27, 2022 $355,000,000 Sunnova Sol IV Issuer, LLC Solar Asset Backed Notes, Series 2022-1 Class A Notes and Class B Notes [***] = Certain information has been excluded from this exhibit because it is both not material and would likely cause competitive harm to the co

Sixth Amendment to Amended and Restated Credit Agreement, by and among Sunnova TEP Holdings, LLC, Sunnova TE Management, LLC, Credit Suisse AG, New York Branch, the Funding Agents from time to time party thereto, the Lenders from time to time party thereto, Wells Fargo Bank, National Association and U.S. Bank National Association, dated April 12, 2022 (incorporated by reference to Exhibit 10.1 to Form 10-Q filed on July 28, 2022).

Exhibit 10.1 SIXTH AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT THIS SIXTH AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT (this ?Amendment?) is made as of this 12th day of April, 2022, by and among SUNNOVA TEP HOLDINGS, LLC, a Delaware limited liability company (the ?Borrower?), SUNNOVA TE MANAGEMENT, LLC, a Delaware limited liability company, in its capacity as Facility Administrator (t

Note Purchase and Placement Agency Agreement, by and among Sunnova Sol IV Issuer, LLC, Sunnova Sol IV Depositor, LLC, Sunnova Energy Corporation and Credit Suisse Securities (USA) LLC, dated June 17, 2022.

Exhibit 10.3 SUNNOVA SOL IV ISSUER, LLC SOLAR ASSET BACKED NOTES, SERIES 2022-1 $317,000,000 4.95% Solar Asset Backed Notes, Series 2022-1, Class A $38,000,000 6.35% Solar Asset Backed Notes, Series 2022-1, Class B NOTE PURCHASE AND PLACEMENT AGENCY AGREEMENT June 17, 2022 CREDIT SUISSE SECURITIES (USA) LLC Eleven Madison Avenue, 4th Floor New York, New York 10010-3629 Ladies and Gentlemen: Sectio

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-38995 Sunnova En

Amendment No. 9 to the Amended and Restated Credit Agreement, among Sunnova EZ-Own Portfolio, LLC, Sunnova SLA Management, LLC, Sunnova Asset Portfolio 7 Holdings, LLC, the Lenders party thereto, the Funding Agents party thereto and Credit Suisse AG, New York Branch, dated as of July 22, 2022 (incorporated by reference to Exhibit 10.4 to Form 10-Q filed on July 28, 2022).

Exhibit 10.4 Execution Version Amendment No. 9 to Amended and Restated Credit Agreement (SLA) This Amendment No. 9 to Amended and Restated Credit Agreement (this ?Amendment?), is dated as of July 22, 2022 (the ?Effective Date?) among Sunnova EZ-Own Portfolio, LLC, a Delaware limited liability company (the ?Borrower?), Sunnova SLA Management, LLC, a Delaware limited liability company, as manager (i

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): July 27, 2022 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or o

SUNNOVA ENERGY INTERNATIONAL INC. UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (in thousands, except share amounts and share par values) As of June 30, 2022 As of December 31, 2021 Assets Current assets: Cash $ 208,114 $ 243,101 Accounts receivabl

Exhibit 99.1 Sunnova Reports Second Quarter 2022 Financial Results Second Quarter 2022 Highlights ?Added 17,300 customers in the second quarter of 2022, bringing total customer count to 225,000 as of June 30, 2022; ?Reaffirmed full-year 2022 guidance and our major metric growth plan, the Triple-Double Triple Plan; ?Customer payment performance remains strong; ?Cost per customer is declining faster

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): June 27, 2022 (June 27, 2022) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of in

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): June 21, 2022 (June 17, 2022) Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of in

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): June 8, 2022 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or or

Amendment No. 8 to the Amended and Restated Credit Agreement, among Sunnova EZ-Own Portfolio, LLC, Sunnova SLA Management, LLC, Sunnova Asset Portfolio 7 Holdings, LLC, the Lenders party thereto, the Funding Agents party thereto and Credit Suisse AG, New York Branch, dated as of June 8, 2022 (incorporated by reference to Exhibit 10.1 to Form 8-K filed on June 10, 2022).

Exhibit 10.1 EXECUTION VERSION AMENDMENT NO. 8 TO AMENDED AND RESTATED CREDIT AGREEMENT (SLA) This AMENDMENT NO. 8 TO AMENDED AND RESTATED CREDIT AGREEMENT (this ?Amendment?), is dated as of June 8, 2022 (the ?Effective Date?) among SUNNOVA EZ-OWN PORTFOLIO, LLC, a Delaware limited liability company (the ?Borrower?), SUNNOVA SLA MANAGEMENT, LLC, a Delaware limited liability company, as manager (in

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) Sunnova Energy International Inc.

As filed with the Securities and Exchange Commission on May 23, 2022

As filed with the Securities and Exchange Commission on May 23, 2022 Registration No.

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 18, 2022 Sunnova Energy International Inc. (Exact name of registrant as specified in its charter) Delaware 001-38995 30-1192746 (State or other jurisdiction of incorporation or or

Indenture, dated February 24, 2022, among Sunnova Helios VIII Issuer, LLC and Wilmington Trust, National Association (incorporated by reference to Exhibit 4.1 to Form 10-Q filed on April 28, 2022).

Exhibit 4.1 Sunnova Helios VIII Issuer, LLC Issuer and Wilmington Trust, National Association Indenture Trustee Indenture Dated as of February 24, 2022 $297,900,000 Sunnova Helios VIII Issuer, LLC Solar Loan Backed Notes, Series 2022-A [***] = Certain information has been excluded from this exhibit because it is both not material and would likely cause competitive harm to the company if publicly d

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-38995 Sunnova E

Note Purchase Agreement, dated February 16, 2022, among Sunnova Helios VIII Issuer, LLC, Sunnova ABS Holdings VIII, LLC, Sunnova Intermediate Holdings, LLC, Sunnova Helios VIII Depositor, LLC, Sunnova Energy Corporation, Credit Suisse Securities (USA) LLC and Popular Securities LLC.

Exhibit 10.1 SUNNOVA HELIOS VIII ISSUER, LLC SOLAR LOAN BACKED NOTES, SERIES 2022-A 131,900,000 2.79% Solar Loan Backed Notes, Series 2022-A, Class A 102,200,000 3.13% Solar Loan Backed Notes, Series 2022-A, Class B 63,800,000 3.53% Solar Loan Backed Notes, Series 2022-A, Class C NOTE PURCHASE AGREEMENT February 16, 2022 CREDIT SUISSE SECURITIES (USA) LLC Eleven Madison Avenue, 4th Floor New York,