Document:

EX-4.1

 Exhibit 4.1 

Execution Version 

STOCKHOLDERS AGREEMENT 

STOCKHOLDERS AGREEMENT (this “Agreement”), dated as of July 29, 2019, by and among SUNNOVA ENERGY INTERNATIONAL
INC., a Delaware corporation (the “Corporation”), and each of the stockholders listed on Schedule A hereto. This Agreement shall become effective (the “Effective Date”) upon the closing of the IPO (as defined
below). 
 WHEREAS, in order to set forth certain understandings between the Corporation, the ECP Stockholders (as defined below) and
the Quantum Stockholders (as defined below), including with respect to certain governance matters, the ECP Stockholders, the Quantum Stockholders and the Corporation wish to enter into this Agreement in accordance with the terms set forth herein.

 NOW, THEREFORE, in consideration of the promises and of the mutual consents and obligations hereinafter set forth, the parties hereto
hereby agree as follows: 
 Section 1.    Definitions; Interpretation. 

(a) Definitions. As used herein, the following terms shall have the following respective meanings: 

“Affiliate” means as to any Person, any other Person or entity who directly, or indirectly through one or more
intermediaries, controls, is controlled by or is under common control with such Person; provided that the term “Affiliate” shall not include at any time (i) any portfolio companies of the ECP Stockholders or (ii) any portfolio
companies of the Quantum Stockholders. As used in this definition, the term “control,” including the correlative terms “controlling,” “controlled by” and “under common control with,” means possession, directly
or indirectly, of the power to direct or cause the direction of management or policies (whether through ownership of securities or any partnership or other ownership interest, by contract or otherwise) of a Person. 

“Agreement” has the meaning set forth in the Preamble. 

“Annual Budget” has the meaning set forth in Section 3(a). 

“Beneficially Own” means that a specified person has or shares the right, directly or indirectly, through any contract,
arrangement, understanding, relationship or otherwise, to vote shares of capital stock of the Corporation. 
 “Board” means
the board of directors of the Corporation. 
 “Business Day” means a day that is not a Saturday, Sunday or day on which
banking institutions in New York City, New York are not required to be open. 
 “Change of Control” means (i) the sale
or disposition of all or substantially all of the assets of the Corporation and its Subsidiaries on a consolidated basis to any person or group (within the meaning of Section 13(d)(3) of the Securities Exchange Act of 1934, as amended), other
than to the ECP Stockholders or their respective Affiliates; (ii) any transaction or series of related transactions (including, but not limited to, a merger or consolidation) that results in any person or group (within the meaning of
Section 13(d)(3) of the Securities Exchange Act of 1934, as 

 
amended), other than the ECP Stockholders and their respective Affiliates, acquiring shares of Common Stock or other equity interest of the Corporation that represent more than 50% of the total
voting power of the Corporation (or any resulting company after such transaction); or (iii) a “Change of Control” as defined in any of the Corporation’s or its Subsidiaries’ existing credit agreements. 

“Common Stock” means the common stock, par value $0.0001 per share, of the Corporation and any stock into which such Stock
may hereafter be changed or for which such Common Stock may be exchanged, and shall also include any Common Stock of the Corporation of any class hereafter authorized. 

“Corporation Shares” means the shares of Common Stock or other equity securities of the Corporation and any securities into
which such shares of Common Stock or other equity securities shall have been changed or any securities resulting from any reclassification or recapitalization of such shares of Common Stock or other equity securities. 

“Corporation” has the meaning set forth in the Preamble. 

“ECP Stockholder” means any of Energy Capital Partners III, LP, Energy Capital Partners III-A, LP, Energy Capital Partners
III-B, LP, Energy Capital Partners III-C, LP, Energy Capital Partners III-D, LP, Energy Capital Partners III (Sunnova Co-Invest), LP and each of their respective Affiliates that owns any shares of Stock in the Corporation. 

“IPO” means an initial public offering of the shares of Common Stock in a firm commitment underwriting effected by the
Corporation pursuant to a Registration Statement on Form S-1. 
 “Person” means any natural person, corporation,
partnership, limited liability company, firm, association, trust, government, governmental agency or other entity, whether acting in an individual, fiduciary or other capacity. 

“Quantum Stockholders” means QSIP LP and each of its Affiliates that owns any shares of Stock in the Corporation. 

“SEC” means the Securities and Exchange Commission or any successor governmental agency. 

“Stock” means (i) the outstanding shares of Common Stock, (ii) any additional shares of Common Stock that may be
issued in the future and (iii) any shares of capital stock of the Corporation into which such shares may be converted or for which such shares may be exchanged. 

“Subsidiary” means, with respect to any Person, any corporation, limited liability company, partnership, joint venture or
other legal entity of which such Person (either above or through or together with any other Subsidiary) owns, directly or indirectly, more than 50% of the stock or other equity interests the holders of which are generally entitled to vote for the
election of the board of directors or other governing body of such corporation or other legal entity. 

  
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 Any capitalized term used in any Section of this Agreement that is not defined in this
Section 1 shall have the meaning ascribed to it in such other Section. 
 (b) Rules of Construction. For all
purposes of this Agreement, unless otherwise expressly provided: 
 (1) the headings and captions of this Agreement are for
convenience of reference only and shall not define, limit or otherwise affect any of the terms hereof; 
 (2) the term
“including” is not limiting and means “including without limitation”; and 
 (3) whenever the context
requires, the gender of all words used herein shall include the masculine, feminine and neuter, and the number of all words shall include the singular and plural. 

Section 2.    Board of Directors. 

(a) Initial Composition of the Board. The Board is initially comprised of 9 directors, (A) four of which were
designated by the ECP Stockholders: Rahman D’Argenio, Matthew DeNichilo, Doug Kimmelman, and Scott D. Steimer; (B) one of which is the Chief Executive Officer of the Corporation, William J. Berger; (C) one of which was designated by
the Quantum Stockholders: Mark Longstreth; and (D) the remainder of which are Michael C. Morgan, C. Park Shaper and one vacancy to be filled by the Board. 

(b) Nomination of Directors. 

(1) From and after the Effective Date, for as long as the ECP Stockholders collectively Beneficially Own the percentages of
Common Stock set forth below, the ECP Stockholders shall have the right to nominate for election to the Board such number of directors that is equal to: 

(i) such number of directors that would constitute a majority of the number of directors that the Corporation would have if
there were no vacancies on the Board, so long as the ECP Stockholders collectively beneficially own at least 50% of the outstanding Common Stock; 

(ii) such number of directors equal to one director fewer than that number that would constitute a majority of the number of
directors that the Corporation would have if there were no vacancies on the Board, so long as the ECP Stockholders collectively Beneficially Own at least 30% of the outstanding Common Stock but less than 50% of the outstanding Common Stock; 

(iii) the greater of (A) three directors and (B) 25% of the total number of directors that constitute the Board
(rounded up to the next 

  
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whole number), so long as the ECP Stockholders collectively beneficially own at least 20% of the outstanding Common Stock but less than 30% of the outstanding Common Stock; 

(iv) the greater of (A) two directors and (B) 15% of the total number of directors that constitute the Board
(rounded up to the next whole number), so long as the ECP Stockholders collectively beneficially own at least 10% of the outstanding Common Stock but less than 20% of the outstanding Common Stock; and 

(v) one director, so long as the ECP Stockholders collectively beneficially own at least 5% of the outstanding Common Stock
but less than 10% of the outstanding Common Stock. 
 (2) From and after the Effective Date, for as long as the Quantum
Stockholders collectively Beneficially Own at least 5% of the outstanding Common Stock, the Quantum Stockholders shall have the right to nominate one director for election to the Board. 

(c) Election of Directors. The Corporation shall take all action within its power to cause all nominees nominated
pursuant to Section 2(b) to be included in the slate of nominees recommended by the Board to the Corporation’s stockholders for election as directors at each annual meeting of the stockholders of the Corporation (and/or in connection with
any election by written consent) and the Corporation shall use all reasonable best efforts to cause the election of each such nominee, including (i) voting or providing a written consent or proxy with respect to Corporation Shares (if
practicable), and soliciting proxies in favor of the election of such nominees, (ii) reasonable best efforts to cause the adoption of stockholders’ resolutions and amendments to the organizational documents of the Corporation,
(iii) executing agreements and instruments, and (iv) making, or causing to be made, with governmental, administrative or regulatory authorities, all filings, registrations or similar actions that are required to achieve such result. 

(d) Replacement of Directors. In the event that a vacancy is created at any time by the death, disability, retirement,
resignation or removal (with or without cause) of a director nominated by the ECP Stockholders or the Quantum Stockholders, as applicable, pursuant to Section 2(b) or designated by the ECP Stockholders or the Quantum Stockholders, pursuant to
this Section 2(d), or in the event of the failure of any such nominee to be elected, the ECP Stockholders or the Quantum Stockholders, as applicable, shall have the right to designate a replacement to fill such vacancy. The Corporation shall
take all action within its power to cause such vacancy to be filled by the replacement so designated by the ECP Stockholders or the Quantum Stockholders, as applicable, and the Board shall promptly elect such designee to the Board. Upon the written
request of the ECP Stockholders or the Quantum Stockholders, as applicable, the Corporation shall take all actions necessary to remove, with or without cause, any director previously nominated by the ECP Stockholders or the Quantum Stockholders, as
applicable, pursuant to Section 2(b) or designated by the ECP Stockholders or the 

  
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Quantum Stockholders, as applicable pursuant to this Section 2(d), and to elect any replacement director designated by the ECP Stockholders or the Quantum Stockholders, as applicable, as
provided in the first sentence of this Section 2(d). 
 (e) Committees. So long as the ECP Stockholders have the
right to nominate at least one director for election to the Board pursuant to Section 2(b) above, the Corporation shall take all action within its power to cause each committee of the Board to include in its membership at least one of the ECP
Stockholders’ nominees, except to the extent that such membership would violate applicable securities laws or stock exchange or stock market rules. 

(f) No Limitation. The provisions of this Section 2 are intended to provide the ECP Stockholders and the Quantum
Stockholders with the minimum Board representation rights set forth herein. Nothing in this Agreement shall prevent the Corporation from having a greater number of nominees or designees of the ECP Stockholders or the Quantum Stockholders on the
Board than otherwise provided herein. In addition, nothing in this Section 2 shall be construed to prevent the ECP Stockholders or the Quantum Stockholders from having a lesser number of nominees or designees than otherwise provided herein or
pursuant to applicable law and the Corporation’s certificate of incorporation and bylaws. 
 (g) Laws and
Regulations. Nothing in this Section 2 shall be deemed to require that any party hereto, or any Affiliate thereof, act or be in violation of any applicable provision of law, regulation, legal duty or requirement or stock exchange or stock
market rule. 
 Section 3.    Information and Access Rights. 

(a) Available Financial Information. Upon the written request of any director nominated by the ECP Stockholders or the
Quantum Stockholders, respectively, pursuant to Section 2(b) or designated by the ECP Stockholders or the Quantum Stockholders, respectively, pursuant to Section 2(d), the Corporation will deliver, or will cause to be delivered, to such
director an annual budget, a business plan and financial forecasts for the Corporation for the fiscal year of the Corporation (collectively, the “Annual Budget”), as soon as reasonably practicable after the approval thereof by the
Board, in such manner and form as approved by the Board, which shall include at least a projection of income and a projected cash flow statement for each fiscal quarter in such fiscal year and a projected balance sheet as of the end of each fiscal
quarter in such fiscal year, in each case prepared in reasonable detail, with appropriate presentation and discussion of the principal assumptions upon which such budgets and projections are based, and which shall be accompanied by the statement of
the Chief Executive Officer or Chief Financial Officer or equivalent officer of the Corporation to the effect that such budget and projections are based on reasonable and good faith estimates and assumptions made by the management of the Corporation
for the respective periods covered thereby. To the extent that there has been any material changes to the Annual Budget provided to any director pursuant to this Section 3(a), the Corporation will deliver, or will cause to be delivered, to such
director a revised Annual Budget taking into account such material changes as soon as practicable after such changes have been approved by the Board. 

  
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 (b) Other Information. Upon the written request of any director
nominated by the ECP Stockholders or the Quantum Stockholders pursuant to Section 2(b) or designated by the ECP Stockholders or the Quantum Stockholders pursuant to Section 2(d), the Corporation will deliver, or will cause to be delivered,
to such director such other information and data (including such information and reports made available to any lender of the Corporation or any of its Subsidiaries under any credit agreement or otherwise) with respect to the Corporation and each of
its Subsidiaries and any such other information concerning the Corporation’s business or financial condition and the Corporation’s management as may be reasonably requested by such director, including such information as may be necessary
to comply with regulatory, tax or other governmental filings. 
 (c) Access. The Corporation shall, and shall cause
its Subsidiaries, officers, directors, employees, auditors, legal counsel and other agents to (a) afford each of the directors nominated by the ECP Stockholders and the Quantum Stockholders pursuant to Section 2(b) or designated by the ECP
Stockholders and the Quantum Stockholders pursuant to Section 2(d), during normal business hours and upon reasonable notice, access to the Corporation’s and its Subsidiaries’ officers, employees, auditors, legal counsel, properties,
offices and other facilities and books and records, and (b) afford each of the directors nominated by the ECP Stockholders and the Quantum Stockholders pursuant to Section 2(b) or designated by the ECP Stockholders and the Quantum
Stockholders pursuant to Section 2(d) the opportunity to discuss the affairs, finances and accounts of the Corporation and its Subsidiaries with their respective officers from time to time as any such director may reasonably request. 

(d) The rights to information and access set forth in Sections 3(a) through (c) above shall terminate with respect to
directors nominated by the ECP Stockholders or the Quantum Stockholders at such time as the ECP Stockholders or Quantum Stockholders, respectively, shall cease to collectively Beneficially Own at least 10% of the outstanding Common Stock. 

Section 4.    Certain Actions. 

(a) Subject to the provisions of Section 4(b), without the approval of the ECP Stockholders, the Corporation shall not,
and (to the extent applicable) shall not permit any Subsidiary of the Corporation to: 
 (1) enter into or agree to undertake
any transaction that would constitute a Change of Control; 
 (2) issue additional Stock of the Corporation, other than any
award under any stockholder approved equity compensation plan; or 
 (3) change the size of the Board. 

  
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 (b) The approval rights set forth in Section 4(a) above shall terminate
at such time as the ECP Stockholders no longer collectively Beneficially Own at least 30% of the outstanding Common Stock. 

Section 5.    Duration of Agreement. 

(a) This Agreement shall terminate automatically upon the first to occur of the following: (1) the dissolution of the
Corporation (unless the Corporation continues to exist after such dissolution as a limited liability company or in another form, whether incorporated in Delaware or another jurisdiction) and (2) upon written agreement by the Corporation, the
ECP Stockholders and the Quantum Stockholders. 
 (b) At such time as the ECP Stockholders no longer collectively
Beneficially Own at least 5% of the outstanding Common Stock, the ECP Stockholders shall have no further rights or privileges under this Agreement or otherwise be entitled to the benefits hereof. 

(c) At such time as the Quantum Stockholders no longer collectively Beneficially Own at least 5% of the outstanding Common
Stock, the Quantum Stockholders shall have no further rights or privileges under this Agreement or otherwise be entitled to the benefits hereof. 

Section 6.    Severability. 

(a) If any provision of this Agreement shall be determined to be illegal and unenforceable by any court of law, the remaining
provisions shall be severable and enforceable in accordance with their terms. 
 Section 7.    Governing Law;
Jurisdiction. 
 (a) This Agreement shall be governed by, and construed in accordance with, the laws of the State of
Delaware, without giving effect to its choice or conflict of law provisions or rules. 
 (b) Any suit, action or proceeding
seeking to enforce any provision of, or based on any matter arising out of or in connection with, this Agreement may be brought against any of the parties in any federal court located in the State of Delaware or any Delaware state court, including
the Delaware Chancery Courts located in Wilmington, Delaware, and each of the parties hereby consents to the exclusive jurisdiction of such court (and of the appropriate appellate courts) in any such suit, action or proceeding and waives any
objection to venue laid therein. Process in any such suit, action or proceeding may be served on any party anywhere in the world, whether within or without the jurisdiction of any such court. Without limiting the foregoing, each of the parties
agrees that service of process upon such party at the address referred to in Section 13, together with written notice of such service to such party, shall be deemed effective service of process upon such party. 

  
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 Section 8.    Jury Trial. 

BECAUSE DISPUTES ARISING IN CONNECTION WITH COMPLEX FINANCIAL TRANSACTIONS ARE MOST QUICKLY AND ECONOMICALLY RESOLVED BY AN EXPERIENCED AND
EXPERT PERSON AND THE PARTIES WISH APPLICABLE STATE AND FEDERAL LAWS TO APPLY (RATHER THAN ARBITRATION RULES), THE PARTIES DESIRE THAT THEIR DISPUTES BE RESOLVED BY A JUDGE APPLYING SUCH APPLICABLE LAWS. THEREFORE, TO ACHIEVE THE BEST COMBINATION OF
THE BENEFITS OF THE JUDICIAL SYSTEM AND/OR ARBITRATION, THE PARTIES HERETO WAIVE ALL RIGHT TO TRIAL BY JURY IN ANY ACTION, SUIT OR PROCEEDING BROUGHT TO ENFORCE OR DEFEND ANY RIGHT OR REMEDIES UNDER THIS AGREEMENT OR ANY DOCUMENTS ENTERED INTO AMONG
THE PARTIES HERETO IN CONNECTION WITH THIS AGREEMENT AND THE TRANSACTIONS CONTEMPLATED HEREIN. 

Section 9.    Stock Dividends, Etc. 

The provisions of this Agreement shall apply to any and all shares of capital stock of the Corporation or any successor or assignee of the
Corporation (whether by merger, consolidation, sale of assets or otherwise) which may be issued in respect of, in exchange for or in substitution for the shares of Stock, by reason of any stock dividend, split, reverse split, combination,
recapitalization, reclassification, merger, consolidation or otherwise in such a manner and with such appropriate adjustments as to reflect the intent and meaning of the provisions hereof and so that the rights, privileges, duties and obligations
hereunder shall continue with respect to the capital stock of the Corporation as so changed. 

Section 10.    Benefits of Agreement. 

This Agreement shall be binding upon and inure to the benefit of the parties hereto, and each of their respective successors and assigns.
Except as otherwise expressly provided herein, no Person not a party to this Agreement, as a third-party beneficiary or otherwise, shall be entitled to enforce any rights or remedies under this Agreement. 

Section 11.    Notices. 

All notices or other communications which are required or permitted hereunder shall be in writing and shall be deemed to have been given if
(a) personally delivered or sent by facsimile or electronic mail transmission, (b) sent by nationally recognized overnight courier or (c) sent by registered or certified mail, postage prepaid, return receipt requested, addressed as
follows: 
 (i) If to the Corporation, to: 

Sunnova Energy International Inc. 

20 East Greenway Plaza, Suite 475 

Houston, Texas 77046 
 Attention:
General Counsel 
 Facsimile: (713) 229-2715 

Email: notices@sunnova.com; treasury@sunnova.com 

  
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 with copies (which shall not constitute notice) to: 

Baker Botts L.L.P. 
 910
Louisiana Street 
 Houston, Texas 77002 

Attention: Travis Wofford 

Facsimile: (713) 229-2715 

Email: travis.wofford@bakerbotts.com 

(ii) If to any of the ECP Stockholders, to: 

Energy Capital Partners, LLC 

11943 El Camino Real, Suite 220 

San Diego, California 92130 

Facsimile: (858) 703-4401 

Attention: Christopher Leininger 

with copies (which shall not constitute notice) to: 

David A. Kurzweil 

Latham & Watkins LLP 

885 Third Avenue 
 New York, NY
10022 
 Facsimile: (212) 751-4864 

Email: david.kurzweil@lw.com 

(iii) If to the Quantum Stockholders, to: 

QSIP LP 
 c/o Strategic Capital
Investment Partners, LP 
 390 Park Avenue, 10th Floor 

New York, NY 10022 
 Attention:
David Taylor 
 with copies (which shall not constitute notice) to: 

Soros Fund Management LLC 
 250
West 55th Street 
 New York, NY 10019 

Attention: Thomas O’Grady 

(iv) Any such communication shall be deemed to have been received (a) when delivered, if personally delivered or sent by facsimile or
electronic mail transmission, (b) the next Business Day after delivery, if sent by nationally recognized, overnight courier and (c) on the third Business Day following the date on which the piece of mail containing such communication is
posted, if sent by first-class mail. 

  
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 Section 12. Modification; Waiver. 

This Agreement may be amended, modified or supplemented only by a written instrument duly executed by the Corporation, the ECP Stockholders and
the Quantum Stockholders; provided that any such amendment, modification or supplement that only affects the rights of a party shall only require the consent of such affected party and the Corporation. No course of dealing between the Corporation or
its Subsidiaries, the ECP Stockholders (or any of them) or the Quantum Stockholders (or any of them) or any delay in exercising any rights hereunder will operate as a waiver of any rights of any party to this Agreement. The failure of any party to
enforce any of the provisions of this Agreement will in no way be construed as a waiver of such provisions and will not affect the right of such party thereafter to enforce each and every provision of this Agreement in accordance with its terms.

 Section 13. Entire Agreement. 

Except as otherwise expressly provided herein, this Agreement constitutes the entire agreement among the parties pertaining to the subject
matter hereof and supersedes all prior and contemporaneous agreements and understandings of the parties in connection therewith, from and after the completion of the IPO. 

Section 14. Specific Performance. 

Each party to this Agreement acknowledges that a remedy at law for any breach or attempted breach of this Agreement will be inadequate, agrees
that each other party to this Agreement shall be entitled to specific performance and injunctive and other equitable relief in case of any such breach or attempted breach, and further agrees to waive (to the extent legally permissible) any legal
conditions required to be met for the obtaining of any such injunctive or other equitable relief (including posting any bond in order to obtain equitable relief). 

Section 15. Counterparts. 

This Agreement may be executed in any number of counterparts, and each such counterpart shall be deemed to be an original instrument, but all
such counterparts taken together shall constitute but one agreement. 
 Section 16. Further Assurances. 

Each party hereto shall do and perform or cause to be done and performed all such further acts and things and shall execute and deliver all
such other agreements, certificates, instruments and other documents as any other party hereto reasonably may request in order to carry out the provisions of this Agreement and the consummation of the transactions contemplated hereby. 

Section 17. Director and Officer Actions. 

No director or officer of the Corporation shall be personally liable to the Corporation, any ECP Stockholder or any Quantum Stockholder as a
result of any acts or omissions taken under this Agreement in good faith. 
 [Signature Page to Follow]

  
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 Execution Version 

The parties have signed this agreement as of the date first written above. 

 

			
	SUNNOVA ENERGY INTERNATIONAL INC.
		
	By:	 	 /s/ William J. Berger

	Name:	 	William J. Berger
	Title:	 	Chairman of the Board, President and Chief Executive Officer

  
 [Signature Page
to Stockholders Agreement] 

 
					
	STOCKHOLDERS:
	
	ENERGY CAPITAL PARTNERS III, LP
		
	By:	 	Energy Capital Partners GP III, LP
	Its:	 	General Partner
			
		 	By:	 	Energy Capital Partners III, LLC
		 	Its:	 	General Partner
			
		 	By:	 	ECP ControlCo, LLC
		 	Its:	 	Managing Member
		
	By:	 	 /s/ Rahman D’Argenio

		 	Name:	 	Rahman D’Argenio
		 	Title:	 	Partner
	
	ENERGY CAPITAL PARTNERS III-A, LP
		
	By:	 	Energy Capital Partners GP III, LP
	Its:	 	General Partner
			
		 	By:	 	Energy Capital Partners III, LLC
		 	Its:	 	General Partner
			
		 	By:	 	ECP ControlCo, LLC
		 	Its:	 	Managing Member
		
	By:	 	 /s/ Rahman D’Argenio

		 	Name:	 	Rahman D’Argenio
		 	Title:	 	Partner

  
 2 

 
					
	ENERGY CAPITAL PARTNERS III-B, LP
		
	By:	 	Energy Capital Partners GP III, LP
	Its:	 	General Partner
			
		 	By:	 	Energy Capital Partners III, LLC
		 	Its:	 	General Partner
			
		 	By:	 	ECP ControlCo, LLC
		 	Its:	 	Managing Member
		
	By:	 	 /s/ Rahman D’Argenio

		 	Name:	 	Rahman D’Argenio
		 	Title:	 	Partner
	
	ENERGY CAPITAL PARTNERS III-C, LP
		
	By:	 	Energy Capital Partners GP III, LP
	Its:	 	General Partner
			
		 	By:	 	Energy Capital Partners III, LLC
		 	Its:	 	General Partner
			
		 	By:	 	ECP ControlCo, LLC
		 	Its:	 	Managing Member
		
	By:	 	 /s/ Rahman D’Argenio

		 	Name:	 	Rahman D’Argenio
		 	Title:	 	Partner

  
 3 

 
					
	ENERGY CAPITAL PARTNERS III-D, LP
		
	By:	 	Energy Capital Partners GP III, LP
	Its:	 	General Partner
			
		 	By:	 	Energy Capital Partners III, LLC
		 	Its:	 	General Partner
			
		 	By:	 	ECP ControlCo, LLC
		 	Its:	 	Managing Member
		
	By:	 	 /s/ Rahman D’Argenio

		 	Name:	 	Rahman D’Argenio
		 	Title:	 	Partner
	
	ENERGY CAPITAL PARTNERS III (SUNNOVA CO-INVEST), LP
		
	By:	 	Energy Capital Partners GP III Co-Investment (Sunnova), LLC
	Its:	 	General Partner
			
		 	By:	 	Energy Capital Partners III, LLC
		 	Its:	 	Managing Member
			
		 	By:	 	ECP ControlCo, LLC
		 	Its:	 	Sole Member
		
	By:	 	 /s/ Rahman D’Argenio

		 	Name:	 	Rahman D’Argenio
		 	Title:	 	Partner

  
 4 

 
					
	QSIP LP
		
	By:	 	Newlight Partners LP
	Its:	 	Investment Manager
		
	By:	 	 /s/ David Taylor

		 	Name:	 	David Taylor
		 	Title:	 	Attorney-in-Fact

  
 5 

 Schedule A 

Stockholders 
 ENERGY CAPITAL PARTNERS
III, LP 
 ENERGY CAPITAL PARTNERS III-A, LP 
 ENERGY CAPITAL
PARTNERS III-B, LP 
 ENERGY CAPITAL PARTNERS III-C, LP 
 ENERGY
CAPITAL PARTNERS III-D, LP 
 ENERGY CAPITAL PARTNERS III (SUNNOVA CO-INVEST), LP 

QSIP LP 

  
 1EX-4.2

 Exhibit 4.2 

Execution Version 

SECOND AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT 

THIS SECOND AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT (this “Agreement”), is made as of July 29, 2019, by and
among Sunnova Energy International Inc., a Delaware corporation (the “Company”), and each of the shareholders listed on Schedule A hereto, each of which is referred to in this Agreement as a “Holder.” 

RECITALS 

WHEREAS, Sunnova Energy Corporation, a Delaware corporation (the “Predecessor Company”), and the Holders are party to
that certain Amended and Restated Registration Rights Agreement, dated as of March 29, 2018 (the “Original Registration Rights Agreement”); 

WHEREAS, pursuant to the Original Registration Rights Agreement, if the Predecessor Company elects to effect an underwritten registered
offering of equity securities of a subsidiary or parent of the Predecessor Company (“Alternative IPO Entity”), rather than the equity securities of the Predecessor Company, including as a result of a reorganization, the parties to
the Original Registration Rights Agreement will enter into an agreement providing registration rights with respect to the equity securities of the Alternative IPO Entity; 

WHEREAS, on July 29, 2019, the Predecessor Company effected a reorganization pursuant to which Sunnova Merger Sub, Inc., a
Delaware corporation and wholly owned subsidiary of the Company (“MergerSub”), merged with and into the Predecessor Company, with the Predecessor Company surviving as a wholly-owned subsidiary of the Company (the
“Reorganization”); and 
 WHEREAS, as a result of the Reorganization, the Holders and the Company hereby agree that
this Agreement shall govern the rights of the Holders to cause the Company to register Common Stock (as defined below) held or issuable to the Holders as set forth in this Agreement and all rights of the Holders under the Original Registration
Rights Agreement shall be extinguished; 
 NOW, THEREFORE, the parties hereby agree as follows: 

 

	 	1.	 Definitions. For purposes of this Agreement: 

1.1    “Adverse Disclosure” means public disclosure of material
non-public information that, in the Board of Directors’ good faith judgment, after consultation with independent outside counsel to the Company, (a) would be required to be made in any Registration
Statement or report filed with the SEC by the Company so that such Registration Statement from and after its effective date, does not contain an untrue statement of material fact or omit to state a material fact required to be stated therein or
necessary to make the statements therein not misleading; (b) would not be required to be made at such time but for the filing, effectiveness or continued use of such Registration Statement or report; and (c) would have a material adverse
effect on the Company or its business or on the Company’s ability to effect a material proposed acquisition, disposition, financing, reorganization, recapitalization or similar transaction. 

1.2    “Affiliate” means, with respect to any specified Person, any other Person who, directly or
indirectly, controls, is controlled by, or is under common control with such Person, including, without limitation, any general partner, managing member, officer or director of such Person or any venture capital or private equity fund now or
hereafter existing that is controlled by one or more general partners or managing members of, or shares the same management company with, such Person. For purposes of this Agreement, (a) “Affiliates” of the EIG Funds shall (i) include
any funds managed, advised or sub-advised by FS/EIG Advisor, LLC, FS/KKR Advisor, LLC or any of their Affiliates and (ii) exclude any portfolio companies in

 
which any funds managed, advised or sub-advised by FS/EIG Advisor, LLC, FS/KKR Advisor, LLC or any of their Affiliates have invested; (b)
“Affiliates” of the ECP Funds shall (i) include any funds managed, advised or sub-advised by Energy Capital Partners III, LLC or any of its Affiliates and (ii) exclude any portfolio
companies in which any funds managed, advised or sub-advised by Energy Capital Partners III, LLC or any of its Affiliates have invested; and (c) “Affiliates” of the Quantum Investor shall
(i) include any funds managed, advised or sub-advised by Soros Fund Management LLC or any of its Affiliates and (ii) exclude any portfolio companies in which any funds managed, advised or sub-advised by George Soros, Soros Fund Management LLC, SFM Participation II LP or any of their respective Affiliates have invested. 

1.3    “Board of Directors” means the board of directors of the Company. 

1.4    “Business Day” means any day of the year on which national banking institutions in Houston, Texas
are open to the public for conducting business and are not required or authorized to close. 
 1.5    “Common
Stock” means the common stock, par value $0.01 per share, of the Company. 
 1.6    “Damages”
means any loss, damage, claim or liability (joint or several) to which a party hereto may become subject under the Securities Act, the Exchange Act, or other federal or state law, insofar as such loss, damage, claim or liability (or any action in
respect thereof) arises out of or is based upon: (a) any untrue statement or alleged untrue statement of a material fact contained in any Registration Statement of the Company, including any preliminary Prospectus or final Prospectus contained
therein or any amendments or supplements thereto; (b) an omission or alleged omission to state therein a material fact required to be stated therein, or necessary to make the statements therein not misleading; or (c) any violation or
alleged violation by the indemnifying party (or any of its agents or Affiliates) of the Securities Act, the Exchange Act, any state securities law, or any rule or regulation promulgated under the Securities Act, the Exchange Act, or any state
securities law. 
 1.7    “Demand Notice” has the meaning given to such term in
Section 2.1(a). 
 1.8    “Demand Period” has the meaning given to such term
in Section 2.1(d). 
 1.9    “Demand Suspension” has the meaning given to
such term in Section 2.1(c). 
 1.10    “ECP Funds” means Energy Capital
Partners III, LP, Energy Capital Partners III-A, LP, Energy Capital Partners III-B, LP, Energy Capital Partners III-C, LP, Energy
Capital Partners III-D, LP and any Affiliated funds thereof 

1.11    “ECP Holders” means the ECP Funds and any of their Affiliates. 

1.12    “ECP Representative” means Energy Capital Partners GP III, LP or, upon written notice to the
Company from any of the ECP Holders, any other Person appointed in lieu of Energy Capital Partners GP III, LP (or any subsequent ECP Representative) to be the “ECP Representative” by the ECP Holders. 

1.13    “Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and
regulations promulgated thereunder. 
 1.14    “Excluded Registration” means (a) a registration
relating to the sale of securities to employees of the Company or a subsidiary pursuant to a stock option, stock purchase, or similar plan; (b) a registration relating to an SEC Rule 145 transaction; (c) a registration on any form that
does not include 

  
 2 

 
substantially the same information as would be required to be included in a registration statement covering the sale of the Registrable Securities; or (d) a registration in which the only
Common Stock being registered is Common Stock issuable upon conversion of debt securities that are also being registered. 

1.15    “FINRA” means the Financial Industry Regulatory Authority, Inc. 

1.16    “Free Writing Prospectus” shall mean any “free writing prospectus” as defined in Rule
405 promulgated under the Securities Act. 
 1.17    “Form S-1”
means such form under the Securities Act as in effect on the date hereof, Form F-1 or any successor registration form thereto under the Securities Act subsequently adopted by the SEC. 

1.18    “Form S-3” means such form under the Securities Act as in
effect on the date hereof, Form F-3 or any registration form thereto under the Securities Act subsequently adopted by the SEC that permits incorporation of substantial information by reference to other
documents filed by the Company with the SEC. 
 1.19    “EIG Funds” means FS KKR Capital Corp., FS
Investment Corporation II, FS Investment Corporation III and FS Energy and Power Fund and each of their respective Subsidiaries. 

1.20    “EIG Holders” means the EIG Funds and any of their Affiliates. 

1.21    “Holder” has the meaning given to such term in the preamble. 

1.22    “Immediate Family Member” means a child, stepchild, grandchild, parent, stepparent, grandparent,
spouse, sibling, mother-in-law, father-in-law, son-in-law, daughter-in-law, brother-in-law, or sister-in-law, including, adoptive relationships, of a natural person referred to herein. 

1.23    “Initiating Holders” means, collectively, Holders who properly initiate a registration request
under this Agreement. 
 1.24    “IPO” means the Company’s first underwritten public offering of
its Common Stock under the Securities Act, which closed on July 29, 2019. 
 1.25    “Notice” has
the meaning given to such term in Section 3.15. 
 1.26    “Other Registrable
Securities” shall mean all Registrable Securities other than the Registrable Securities held by the ECP Holders, the EIG Holders or the Quantum Holders. 

1.27    “Person” means any individual, corporation, partnership, trust, limited liability company,
association or other entity. 
 1.28    “Prospectus” means the prospectus included in any Registration
Statement, all amendments and supplements to such prospectus, including pre- and post-effective amendments to such Registration Statement, and all other material incorporated by reference in such prospectus.

 1.29    “Quantum” means Quantum Strategic Partners Ltd. 

1.30    “Quantum Affiliate” means (a) any Affiliate of Quantum, Soros Fund Management LLC, SFM
Participation II LP or George Soros, (b) any Person that is managed by Soros Fund Management LLC or its Affiliates and (c) any Person that is a charitable organization or trust established 

  
 3 

 
by or on behalf of and controlled by any of the members of George Soros’ family, in each case excluding any portfolio company which is, has been or will be (during any time in which it owns
Registrable Securities) engaged in any business that is competitive with the business of the Company and its Subsidiaries. 

1.31    “Quantum Holders” means Quantum and any Quantum Affiliate. 

1.32    “Registrable Securities” means (a) any Common Stock owned by the Holders, (b) any
Common Stock held by any Holder that may be issued or distributed or be issuable in respect of any such shares by way of conversion, dividend, stock split or other distribution, merger, consolidation, exchange, recapitalization or reclassification
or similar transaction, (c) any Common Stock issued as a distribution with respect to, or in exchange for or in replacement of any of such shares, and (d) any Common Stock issued or transferred in exchange for or upon conversion of any of
such shares as a result of a merger, consolidation, reorganization or otherwise (including, without limitation, any securities issued upon the conversion of the Company to a successor corporation) and any other securities issued to any of the Holder
in connection with any such transaction; excluding in all cases, however, any Registrable Securities sold by a Person in a transaction in which the applicable rights under this Agreement are not assigned pursuant to Subsection 3.1, and
excluding for purposes of Section 2 any Common Stock for which registration rights have terminated pursuant to Subsection 2.13 of this Agreement. 

1.33    “Registrable Securities then outstanding” means the number of shares determined by adding the
number of shares or units (as applicable) of outstanding Common Stock that are Registrable Securities and the number of shares or units (as applicable) of Common Stock issuable (directly or indirectly) pursuant to then exercisable and/or convertible
securities that are Registrable Securities. 
 1.34    “Registration Statement” means any registration
statement of the Company filed with, or to be filed with, the SEC under the rules and regulations promulgated under the Securities Act, including the related Prospectus, amendments and supplements to such registration statement, including pre- and post-effective amendments, and all exhibits and all material incorporated by reference in such registration statement. 

1.35    “Restricted Securities” means the securities of the Company required to be notated with the
legend set forth in Subsection 2.12(a) hereof. 
 1.36    “SEC” means the Securities and
Exchange Commission. 
 1.37    “SEC Rule 144” means Rule 144 promulgated by the SEC under the
Securities Act. 
 1.38    “SEC Rule 145” means Rule 145 promulgated by the SEC under the Securities
Act. 
 1.39    “Securities Act” means the Securities Act of 1933, as amended, and the rules and
regulations promulgated thereunder. 
 1.40    “Selling Expenses” means all underwriting discounts,
selling commissions, and stock transfer taxes applicable to the sale of Registrable Securities, and fees and disbursements of counsel for any Holder, except for the fees and disbursements of the Selling Holder Counsel borne and paid by the Company
as provided in Subsection 2.6. 

  
 4 

 1.41    “Underwritten Offering” means a sale of
securities of the Company to an underwriter or underwriters for reoffering to the public. 

1.42    “WKSI” means a “well known seasoned issuer” as defined in Rule 405 promulgated under
the Securities Act. 
 2.     Registration Rights. The Company covenants and agrees as follows: 

2.1    Demand Registration. 

(a)    Form S-1 Demand. If at any time after one hundred eighty
(180) days after the effective date of the Registration Statement for the IPO, the Company receives a request from either (i) the ECP Holders, (ii) the EIG Holders, (iii) the Quantum Holders or (iv) other Holders of at least
forty percent (40%) of the Other Registrable Securities then outstanding, in each case that the Company file a Registration Statement on Form S-1 with respect to Registrable Securities having an anticipated
aggregate offering price, net of Selling Expenses, in excess of $20 million, then the Company shall (1) within ten (10) days after the date such request is given, give notice thereof (the “Demand Notice”) to all
Holders other than the Initiating Holders; and (2) as soon as practicable, and in any event within sixty (60) days after the date such request is given by the Initiating Holders, file a Registration Statement on Form S-1 under the Securities Act covering all Registrable Securities that the Initiating Holders requested to be registered and any additional Registrable Securities requested to be included in such registration by any
other Holders, as specified by notice given by each such Holder to the Company within ten (10) days of the date the Demand Notice is given, and in each case, subject to the limitations of Subsections 2.1(c) and 2.3. 

(b)    Form S-3 Demand. If at any time when it is eligible to use Form S-3, the Company receives a request from either (i) the ECP Holders, (ii) the EIG Holders, (iii) the Quantum Holders or (iv) other Holders of at least thirty percent (30%) of the Other
Registrable Securities then outstanding that the Company file a Registration Statement, including a shelf registration statement, and if the Company is a WKSI, an automatic shelf registration statement, on Form
S-3 with respect to outstanding Registrable Securities of such Holders, then the Company shall (1) within ten (10) days after the date such request is given, give a Demand Notice to all Holders other
than the Initiating Holders; and (2) as soon as practicable, and in any event within thirty (30) days after the date such request is given by the Initiating Holders, file a Registration Statement on Form
S-3 under the Securities Act covering all Registrable Securities requested to be included in such registration by any other Holders, as specified by notice given by each such Holder to the Company within ten
(10) days of the date the Demand Notice is given, and in each case, subject to the limitations of Subsections 2.1(c) and 2.3. 

(c)    At any time, and from time-to-time,
during the period during which a shelf registration statement is effective (the “Shelf Registration Effectiveness Period”) (except during a Demand Suspension, as defined below), any of (i) the ECP Holders, (ii) the EIG
Holders, (iii) the Quantum Holders or (iv) other Holders of at least thirty percent (30%) of the Other Registrable Securities then outstanding may notify the Company in writing (the “Takedown Request”) of their intent to
sell Registrable Securities covered by the Registration Statement (in whole or in part) in an offering (a “Shelf Offering”). Such Takedown Request shall specify the aggregate number of Registrable Securities requested to be
registered in such Shelf Offering. Within ten (10) days after receipt by the Company of such Takedown Request, the Company shall deliver a written notice (a “Takedown Notice”) to each other Holder informing each such other
Holder of its right to include Registrable Securities in such Shelf Offering. As soon as reasonably practicable and in any event no later than five (5) Business Days after receipt of a Takedown Notice (and no later than two (2) Business
Days after the receipt of such Demand Notice in the case of a “bought deal,” a “registered direct offering” or an “overnight transaction” where no preliminary prospectus is used), each such other Holder shall have the
right to request in writing that the Company include all or a specific portion of the Registrable Securities held by such other Holder in such Shelf Offering and the Company shall include such Registrable Securities in such Shelf Offering. 

  
 5 

 (d)    Notwithstanding the foregoing obligations, if the Company
furnishes to Holders requesting a Registration Statement or Takedown Request pursuant to this Subsection 2.1 a certificate signed by the Company’s chief executive officer stating that in the good faith judgment of the Board of Directors
it would be materially detrimental to the Company and its shareholders for such Registration Statement, including any shelf registration statement, to either become effective or remain effective for as long as such Registration Statement otherwise
would be required to remain effective, or for the prospectus supplement, related the Registration Statement to be filed pursuant to the Takedown Request, to be filed because such action would: (i) materially interfere with a significant
acquisition, corporate reorganization, or other similar transaction involving the Company; (ii) require the Company to make an Adverse Disclosure; (iii) render the Company unable to comply with requirements under the Securities Act or
Exchange Act; or (iv) in the good faith judgment of the underwriters of such registration, otherwise be materially detrimental to the Company and its shareholders for such Registration Statement or prospectus supplement to be filed (a
“Demand Suspension”), then the Company shall have the right to defer taking action with respect to such filing, and any time periods with respect to filing or effectiveness thereof shall be tolled correspondingly, for a period of
not more than sixty (60) days (or thirty (30) days in the case of clause (iv) after the request of the Initiating Holders is given; provided, however, that the Company may not invoke this right more than twice in any
twelve (12) month period, and at least thirty (30) days must elapse between each Demand Suspension. If a Demand Suspension is made because the Registration Statement or Takedown Request would require the Company to make an Adverse
Disclosure, such Demand Suspension shall terminate at such time as the public disclosure of such information is made. The Company shall immediately notify the Holders upon the termination of any Demand Suspension, without any further request from a
Holder. 
 (e)    The Company shall not be obligated to effect, or to take any action to effect, any registration
pursuant to Subsection 2.1(a): (i) during the period that is sixty (60) days before the Company’s good faith estimate of the date of filing of, and ending on a date that is ninety (90) days after the effective date of, a
Company-initiated registration, provided that the Company is actively employing in good faith commercially reasonable efforts to cause such Registration Statement to become effective and may only exercise this right once in any twelve
(12) month period; (ii) (A) in the case of the ECP Holders, after the Company has effected three (3) registrations requested by the ECP Holders pursuant to Subsection 2.1(a) (excluding the IPO), (B) in the case of the EIG
Holders, after the Company has effected two (2) registrations requested by the EIG Holders pursuant to Subsection 2.1(a) (excluding the IPO), (C) in the case of the Quantum Holders, after the Company has effected two
(2) registrations requested by the Quantum Holders pursuant to Subsection 2.1(a) (excluding the IPO) and (D) in the case of the other Holders, after the Company has effected two (2) registrations effected by such other Holders
pursuant to Subsection 2.1(a) (excluding the IPO) or (iii) if the Initiating Holders propose to dispose of shares or units (as applicable) of Registrable Securities that may be immediately registered on Form S-3 pursuant to a request made pursuant to Subsection 2.1(b). The Company shall not be obligated to effect, or to take any action to effect, any registration or offering pursuant to Subsection 2.1(b)
or Subsection 2.1(c), respectively, during the period that is thirty (30) days before the Company’s good faith estimate of the date of filing of, and ending on a date that is ninety (90) days after the effective date of, a
Company-initiated registration or Company Offering, provided that, in the case of Section 2.1(b), the Company is actively employing in good faith commercially reasonable efforts to cause such Registration Statement
to become effective, or, in the case of Section 2.1(c), the Company is actively employing in good faith commercially reasonable efforts to cause such Company Offering to take place, and, in any case, the Company may only
exercise this right once in any twelve (12) month period. A registration shall not be counted as “effected” for purposes of this Subsection 2.1(e) until such time as the applicable Registration Statement has been
declared effective by the SEC and, in the case of a registration pursuant to Subsection 2.1(a), remains effective for not less than 

  
 6 

 
(180) days (or such shorter period as shall terminate when all Registrable Securities covered by such Registration Statement have been sold or withdrawn), or if such Registration Statement
relates to an underwritten offering, such longer period as, in the opinion of counsel for the underwriter or underwriters, a Prospectus is required by law to be delivered in connection with sales of Registrable Securities by an underwriter or dealer
(the “Demand Period”). No registration pursuant to Subsection 2.1(a) shall be deemed to have been effected if (i) during the Demand Period such registration is interfered with by any stop order, injunction or other order
or requirement of the SEC or other governmental agency or court or (ii) the conditions to closing specified in the underwriting agreement, if any, entered into in connection with such registration are not satisfied other than by reason of a
wrongful act, misrepresentation or breach of such applicable underwriting agreement by the Initiating Holders. 

(f)    Any Holders that have requested its Registrable Securities be included in any registration pursuant to
Subsection 2.1(a) may withdraw all or any portion of its Registrable Securities from such registration at any time prior to the effectiveness of the applicable Registration Statement or in the case of an underwritten public offering, prior to
the Registration Statement’s latest effective date with regard to the registration (as determined for purposes of Rule 430B(f)(2) under the Securities Act). The Company shall continue all efforts to secure effectiveness of the applicable
Registration Statement in respect of the Registrable Securities of any other Holder that has requested inclusion in the Demand Registration pursuant to Subsection 2.1(a) so long as Initiating Holders have requested and not withdrawn all
of their Registrable Securities to be included in such registration; provided, however, if the Initiating Holders have requested for all of their Registrable Securities to be withdrawn from such registration, the Company shall
immediately cease all efforts to secure effectiveness of the applicable Registration Statement, even if one or more other Holders have requested for Registrable Securities to be included in such applicable Registration Statement pursuant to
Subsection 2.1(a) and such withdrawn registration shall not count towards the limitation on registrations set forth in Subsection 2.1(e) so long as the applicable Registration Statement has not been filed or submitted to
the SEC. 
 (g)    In the event any Holder requests to participate in a registration pursuant to this Subsection
2.1 in connection with a distribution of Registrable Securities to its partners or members, the registration shall provide for resale by such partners or members, if requested by the Holder. 

(h)    For purposes of this Section 2.1, the Company shall use its commercially reasonable
efforts to qualify for registration on Form S-3 for secondary sales and, during such time as the Company is so qualified, shall effect any registration of secondary sales on Form
S-3 after such qualification. 
 2.2    Company Offering. 

(a)    If the Company proposes to offer (including, for this purpose, a registration effected by the Company for its
shareholders other than the Holders) any of its securities under the Securities Act in connection with the public offering of such securities (including an “at-the market offering,” a “bought
deal” or a “registered direct offering”) solely for cash (other than in an Excluded Registration), the Company shall, at such time, promptly give each Holder notice of such offering (a “Company Offering”). Such notice
shall specify, as applicable, the amount of Common Stock to be registered, the proposed filing date of the registration statement or applicable prospectus supplement and the proposed minimum offering price of the Common Stock, in each case to the
extent then known. In the case of an offering under a shelf registration statement previously filed or to be filed by the Company pursuant to Rule 415 under the Securities Act, including where the Company qualifies as a WKSI, such notice shall be
sent as promptly as reasonably practicable and in any event no later than ten (10) days prior to the expected date of filing of such registration statement or commencement of marketing efforts for such offering (and no later than five
(5) days prior in the case of a “bought deal,” a “registered direct offering” 

  
 7 

 
or an “overnight transaction” where no preliminary prospectus is used). In the case of a Company Offering under a registration statement to be filed that is not a shelf registration
statement, such notice shall be given sent as promptly as reasonably practicable and in any event no later than ten (10) days prior to the expected date of filing of such registration statement. Upon the written request of each Holder given
within five (5) Business Days after such notice is given by the Company (except that each Holder shall have two (2) Business Days after the Company gives such notice to request inclusion of Registrable Securities in the Company Offering in
the case of a “bought deal,” a “registered direct offering” or an “overnight transaction” where no preliminary prospectus is used), the Company shall, subject to the provisions of Subsection 2.3, as promptly as
reasonably practicable cause to be registered or include in the prospectus supplement, as applicable, all of the Registrable Securities that each such Holder has requested to be included in such registration. The Company shall have the right to
terminate or withdraw any offering initiated by it under this Subsection 2.2 before the effective date of such offering, whether or not any Holder has elected to include Registrable Securities in such offering. The expenses (other than
Selling Expenses) of such withdrawn offering shall be borne by the Company in accordance with Subsection 2.6. 

(b)    No offering of Registrable Securities effected pursuant to a request under this Subsection 2.2 shall be
deemed to have been effected pursuant to Subsection 2.1 or shall relieve the Company of its obligations under Subsection 2.1. 

(c)    Each Holder shall be permitted to withdraw all or part of its Registrable Securities in an offering under this
Subsection 2.2 by giving written notice to the Company of its request to withdraw; provided, that (i) such request must be made in writing prior to the effectiveness of such Registration Statement or, in the case of a public
offering, at least five (5) Business Days prior to the earlier of the anticipated filing of the “red herring” Prospectus, if applicable, and the anticipated pricing or trade date and (ii) such withdrawal shall be irrevocable and,
after making such withdrawal, the Holder shall no longer have any right to include Registrable Securities in such offering as to which such withdrawal was made. 

2.3    Underwriting Requirements. 

(a)    If, pursuant to Subsection 2.1, the Initiating Holders intend to distribute the Registrable Securities
covered by their request by means of an underwriting, they shall so advise the Company as a part of their request made pursuant to Subsection 2.1, and the Company shall include such information in the Demand Notice. The underwriter(s) will be
selected by the Initiating Holders and shall be reasonably acceptable to the Company. In such event, the right of any Holder to include such Holder’s Registrable Securities in such registration shall be conditioned upon such Holder’s
participation in such underwriting and the inclusion of such Holder’s Registrable Securities in the underwriting to the extent provided herein. All Holders proposing to distribute their securities through such underwriting shall (together with
the Company as provided in Subsection 2.4(e)) enter into an underwriting agreement in customary form with the underwriter(s) selected for such underwriting. Notwithstanding any other provision of this Subsection 2.3, if the managing
underwriter(s) advise(s) the Initiating Holders in writing that marketing factors require a limitation on the number of shares or units (as applicable) to be underwritten, then the Initiating Holders shall so advise all Holders of Registrable
Securities that otherwise would be underwritten pursuant hereto, and the number of Registrable Securities that may be included in the underwriting shall be allocated among such Holders of Registrable Securities, including the Initiating Holders, in
proportion (as nearly as practicable) to the number of Registrable Securities owned by each Holder or in such other proportion as shall mutually be agreed to by all such selling Holders; provided, however, that the number of
Registrable Securities held by the Holders to be included in such underwriting shall not be reduced unless all other securities are first entirely excluded from the underwriting. 

(b)    In connection with any offering involving an underwriting of shares or units (as applicable) of the Company’s
capital stock pursuant to Subsection 2.2, the Company shall not be required 

  
 8 

 
to include any of the Holders’ Registrable Securities in such underwriting unless the Holders accept the terms of the underwriting as agreed upon between the Company and its underwriters,
and then only in such quantity as the underwriters in their sole discretion determine will not jeopardize the success of the offering by the Company. If the total number of securities, including Registrable Securities, requested by Holders to be
included in such offering exceeds the number of securities to be sold (other than by the Company) that the underwriters in their reasonable discretion determine is compatible with the success of the offering, then the Company shall be required to
include in the offering only that number of such securities, including Registrable Securities, which the underwriters and the Company in their sole discretion determine will not jeopardize the success of the offering. If the underwriters determine
that less than all of the Registrable Securities requested to be registered can be included in such offering, then the Registrable Securities that are included in such offering shall be allocated among the selling Holders in proportion (as nearly as
practicable to) the number of Registrable Securities owned by each selling Holder or in such other proportions as shall mutually be agreed to by all such selling Holders. Notwithstanding the foregoing, in no event shall (i) the number of
Registrable Securities included in the offering be reduced unless all other securities (other than securities to be sold by the Company) are first entirely excluded from the offering, or (ii) the number of Registrable Securities included in the
offering be reduced below thirty percent (30%) of the total number of securities included in such offering. For purposes of the provision in this Subsection 2.3(b) concerning apportionment, for any selling Holder that is a partnership,
limited liability company, or corporation, the partners, members, retired partners, retired members, stockholders, and Affiliates of such Holder, or the estates and Immediate Family Members of any such partners, retired partners, members, and
retired members and any trusts for the benefit of any of the foregoing Persons, shall be deemed to be a single “selling Holder,” and any pro rata reduction with respect to such “selling Holder” shall be based upon the aggregate
number of Registrable Securities owned by all Persons included in such “selling Holder,” as defined in this sentence. 

(c)    For purposes of Subsection 2.1, a registration shall not be counted as “effected” if, as a result
of an exercise of the underwriter’s cutback provisions in Subsection 2.3(a), fewer than fifty percent (50%) of the total number of Registrable Securities that Holders have requested to be included in such Registration Statement are
actually included. 
 (d)    In the case of an underwritten offering under Subsection 2.1, the price,
underwriting discount and other financial terms for the Registrable Securities shall be determined by the Initiating Holders and shall be reasonably acceptable to the Company. In addition, in the case of any underwritten offering under Subsection
2.2, each of the Holders may, subject to any limitations on withdrawal contained herein, withdraw all or part of their request to participate in the registration pursuant Subsection 2.2 after being advised of such price, discount and
other terms and shall not be required to enter into any agreements or documentation that would require otherwise. 

2.4    Obligations of the Company. Whenever required under this Section 2 to effect the
registration of any Registrable Securities, the Company shall, as expeditiously as reasonably possible: 

(a)    prepare and file a Registration Statement with respect to such Registrable Securities and use its commercially
reasonable efforts to cause such Registration Statement to become effective, and, to keep such Registration Statement effective for a period of up to one hundred eighty (180) days or, if earlier, until the distribution contemplated in the
Registration Statement has been completed, provided, however, that (i) such one hundred eighty (180) day period shall be extended for a period of time equal to the period the Holder refrains, at the request of an underwriter
of Common Stock (or other securities) of the Company, from selling any securities included in such registration, and (ii) in the case of an automatic Registration Statement on Form S-3, where the Company
shall use its commercially reasonable efforts to keep such Registration Statement effective for three years from the date of effectiveness, which period may be extended, at the request of the Holders of a majority of the Registrable

  
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Securities registered thereunder, until the earlier of (i) the effective date of the new Registration Statement or (ii) 180 days after the third anniversary of the initial effective date of
the prior automatic Registration Statement on Form S-3; in each case, subject to compliance with applicable SEC rules. 

(b)    (i) prepare and file with the SEC such amendments, including post-effective amendments, and supplements to such
Registration Statement, and the Prospectus used in connection with such Registration Statement, as may be necessary to comply with the Securities Act in order to enable the disposition of all securities covered by such Registration Statement through
the applicable periods during which the Company is obligated to maintain the effectiveness of such Registration Statement, (ii) cause the related Prospectus to be amended or supplemented by any required Prospectus supplement, and as so
supplemented or amended to be filed pursuant to Rule 424 promulgated by the SEC under the Securities Act; and (iii) respond to any comments received from the SEC with respect to each Registration Statement or any amendment thereto; 

(c)    that, to the extent practicable, at least five (5) Business Days prior to filing any registration statement or
prospectus or any amendments or supplements thereto, the Company shall furnish to the holders of the Registrable Securities covered by such registration statement and their counsel, copies of all such documents proposed to be filed; 

(d)    furnish to the selling Holders such numbers of copies of the signed Registration Statement, any post-effective
amendment thereto, a Prospectus, including a preliminary Prospectus, as required by the Securities Act, any amendments or supplements thereto, any Free Writing Prospectus, and such other documents as the Holders may reasonably request in order to
facilitate their disposition of their Registrable Securities; 
 (e)    use its commercially reasonable efforts to
register and qualify the securities covered by such Registration Statement under such other securities or blue-sky laws of such jurisdictions as shall be reasonably requested by the selling Holders;
provided that the Company shall not be required to qualify to do business or to file a general consent to service of process in any such states or jurisdictions, unless the Company is already subject to service in such jurisdiction and except
as may be required by the Securities Act; 
 (f)    in the event of any underwritten public offering, (i) enter
into and perform its obligations under an underwriting agreement, in usual and customary form, with the underwriter(s) of such offering and (ii) cooperate with the holders of Registrable Securities to be included in such registration and the
managing underwriter or underwriters, if any, to facilitate the timely preparation and delivery of certificates (not bearing any restrictive legends other than as may be required by applicable law, by the stock transfer agent, depositary or their
nominee, if applicable) representing securities to be sold under such registration, and enable such securities to be in such denominations and registered in such names as the managing underwriter or underwriters, if any, or such holders may request;

 (g)    cooperate with each Holder and each underwriter, if any, participating in the disposition of such Registrable
Securities and their respective counsel in connection with any filings required to be made with FINRA; 
 (h)    to the
extent the Company is eligible under the relevant provisions of Rule 430B under the Securities Act, if the Company files any shelf Registration Statement, include in such shelf Registration Statement such disclosures as may be required by Rule 430B
under the Securities Act (referring to the unnamed selling security holders in a generic manner by identifying the initial offering of the securities to the Holders) in order to ensure that the Holders may be added to such shelf Registration
Statement at a later time through the filing of a Prospectus supplement rather than a post-effective amendment; 

  
 10 

 (i)    use its commercially reasonable efforts to cause all such
Registrable Securities covered by such Registration Statement to be listed on a national securities exchange or trading system and each securities exchange and trading system (if any) on which similar securities issued by the Company are then
listed; 
 (j)    (i) provide a transfer agent and registrar for all Registrable Securities registered pursuant to this
Agreement and provide a CUSIP number for all such Registrable Securities, in each case not later than the effective date of such registration, and (ii) cooperate with any selling Holders to facilitate the timely preparation and delivery of
book-entry interests representing Registrable Securities to be delivered to a transferee pursuant to a Registration Statement, which book-entry interests shall be free of all restrictive legends indicating that the Registrable Securities are
unregistered or unqualified for resale under the Securities Act, Exchange Act or other applicable securities laws, and to enable such Registrable Securities to be in such denominations and registered in such names as any such Holder may request in
writing. 
 (k)    (i) promptly make available for inspection by the selling Holders, any managing underwriter(s)
participating in any disposition pursuant to such Registration Statement, and any attorney or accountant or other agent retained by any such underwriter or selected by the selling Holders, all financial and other records, pertinent corporate
documents, and properties of the Company, (ii) cause the Company’s officers, directors, employees, and independent accountants to supply all information reasonably requested by any such seller, underwriter, attorney, accountant, or agent,
in each case, as necessary or advisable to verify the accuracy of the information in such Registration Statement and to conduct appropriate due diligence in connection therewith (as shall be necessary, in the opinion of such seller or
underwriter’s legal counsel, to conduct a reasonable investigation with the meaning of Section 11(b)(3) of the Securities Act), and (iii) cause appropriate officers and employees to be available, on a customary basis and upon
reasonable notice, to meet with prospective investors in presentations, meetings and road shows. 
 (l)    notify each
selling Holder, promptly after the Company receives notice thereof, of the time when such Registration Statement has been declared effective or a supplement to any Prospectus forming a part of such Registration Statement has been filed; 

(m)    after such Registration Statement becomes effective, promptly notify each selling Holder of any (i) request by
the SEC that the Company amend or supplement such Registration Statement or Prospectus or (ii) stop order or other order suspending the effectiveness of any registration statement, issued or threatened in writing by the SEC in connection
therewith, and use its commercially reasonable efforts to prevent the entry of such stop order or to remove it or obtain withdrawal of it as soon as practicable if entered; 

(n)    use its commercially reasonable efforts to obtain: 

(i)    at the time of pricing of any underwritten offering (including an “at-the-market offering,” a “bought deal” or a “registered direct offering”) a “cold comfort letter” from the Company’s independent registered public accounting
firm covering such matters of the type customarily covered by “cold comfort letters” as the Holders and the underwriters reasonably request; and 

(ii)    at the time of any sale in an underwritten offering pursuant to the registration statement, a
“bring-down comfort letter,” dated as of the date of such sale, from the Company’s independent registered public accountants covering such matters of the type customarily covered by “bring-down comfort letters” as the
Holders and the underwriters reasonably request; 

  
 11 

 (o)    use its commercially reasonable efforts to obtain, at the time of
effectiveness of each registration or, in the case of a shelf registration, at the time of pricing, and at the time of any sale pursuant to each registration, an opinion or opinions addressed to the holders of the Registrable Securities to be
included in such registration and the underwriter or underwriters, if any, in customary form and scope from legal counsel for the Company (who may be its internal legal counsel); 

(p)    promptly notify each seller of Registrable Securities covered by such registration, upon discovery by an executive
officer of the Company that the prospectus included in such registration, as then in effect, includes an untrue statement of a material fact or omits to state any material fact required to be stated therein or necessary to make the statements
therein not misleading, and promptly thereafter prepare and file with the SEC and furnish to such seller a reasonable number of copies of a supplement to or an amendment of such prospectus as may be necessary so that, as thereafter delivered to the
purchasers or prospective purchasers of such securities, such prospectus shall not include an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein not
misleading in the light of the circumstances under which they are made; and 
 (q)    enter into such agreements
(including underwriting agreements in customary form) and take such other actions as the Holders shall reasonably request in order to expedite or facilitate the disposition of such Registrable Securities, including customary holdback / lock-up provisions. 
 In addition, the Company shall ensure that, at all times after any Registration
Statement covering a public offering of securities of the Company under the Securities Act shall have become effective, its insider trading policy shall provide that the directors of the Company may implement a trading program under Rule 10b5-1 of the Exchange Act. 
 2.5    Furnish Information. It shall be a
condition precedent to the obligations of the Company to take any action pursuant to this Section 2 with respect to the Registrable Securities of any selling Holder that such Holder shall furnish to the Company such
information regarding itself, the Registrable Securities held by it, and the intended method of disposition of such securities as is reasonably required to effect the registration of such Holder’s Registrable Securities. 

2.6    Expenses of Registration. All expenses (other than Selling Expenses) incurred in connection with
registrations, filings, or qualifications pursuant to Section 2, including all registration, filing, and qualification fees (including fees and expenses (a) with respect to filings required to be made with the trading
market and (b) in compliance with applicable state securities or “Blue Sky” laws); printers’ and accounting fees; all reasonable out-of-pocket
expenses relating to marketing the sale of the Registrable Securities, including expenses related to conducting a “road show”; fees and disbursements of counsel, auditors and accountants for the Company; and the reasonable fees and
disbursements of one counsel for the selling Holders (“Selling Holder Counsel”), shall be borne and paid by the Company; provided, however, that the Company shall not be required to pay for any expenses of any
registration proceeding begun pursuant to Subsection 2.1 if the registration request is subsequently withdrawn at the request of the Initiating Holder(s) (in which case all selling Holders shall bear such expenses pro rata based upon the
number of Registrable Securities that were to be included in the withdrawn registration), unless the Initiating Holder(s) agree to forfeit their right to one registration pursuant to Subsection 2.1(a); provided further, that if,
at the time of such withdrawal, the Holders shall have learned of a material adverse change in the condition, business, or prospects of the Company from that known to the Holders at the time of their request and have withdrawn the request with
reasonable promptness after learning of 

  
 12 

 
such information then the Holders shall not be required to pay any of such expenses and shall not forfeit their right to one registration pursuant to Subsection 2.1(a). All Selling
Expenses relating to Registrable Securities registered pursuant to this Section 2 shall be borne and paid by the Holders pro rata on the basis of the number of Registrable Securities registered on their behalf. 

2.7    Delay of Registration. No Holder shall have any right to obtain or seek an injunction restraining or
otherwise delaying any registration pursuant to this Agreement as the result of any controversy that might arise with respect to the interpretation or implementation of this Section 2. 

2.8    Indemnification. If any Registrable Securities are included in a Registration Statement under this
Section 2: 
 (a)    To the extent permitted by law, the Company will indemnify and hold
harmless each selling Holder, and the partners, members, officers, directors, and stockholders of each such Holder; legal counsel and accountants for each such Holder; any underwriter (as defined in the Securities Act) for each such Holder; and each
Person, if any, who controls such Holder or underwriter within the meaning of the Securities Act or the Exchange Act, against any Damages, and the Company will pay to each such Holder, underwriter, controlling Person, or other aforementioned Person
any legal or other expenses reasonably incurred thereby in connection with investigating or defending any claim or proceeding from which Damages may result, as such expenses are incurred; provided, however, that the indemnity agreement
contained in this Subsection 2.8(a) shall not apply to amounts paid in settlement of any such claim or proceeding if such settlement is effected without the consent of the Company, which consent shall not be unreasonably withheld, nor shall
the Company be liable for any Damages to the extent that they arise out of or are based upon actions or omissions made in reliance upon and in conformity with written information furnished by or on behalf of any such Holder, underwriter, controlling
Person, or other aforementioned Person expressly for use in connection with such registration. 
 (b)    To the extent
permitted by law, each selling Holder, severally and not jointly, will indemnify and hold harmless the Company, and each of its directors, each of its officers who has signed the Registration Statement, each Person (if any) who controls the Company
within the meaning of the Securities Act, legal counsel and accountants for the Company, any underwriter (as defined in the Securities Act), any other Holder selling securities in such Registration Statement, and any controlling Person of any such
underwriter or other Holder, against any Damages, in each case only to the extent that such Damages arise out of or are based upon actions or omissions made in reliance upon and in conformity with written information furnished by or on behalf of
such selling Holder expressly for use in connection with such registration; and each such selling Holder will pay to the Company and each other aforementioned Person any legal or other expenses reasonably incurred thereby in connection with
investigating or defending any claim or proceeding from which Damages may result, as such expenses are incurred; provided, however, that the indemnity agreement contained in this Subsection 2.8(b) shall not apply to amounts paid
in settlement of any such claim or proceeding if such settlement is effected without the consent of the Holder, which consent shall not be unreasonably withheld; and provided, further, that in no event shall the aggregate amounts
payable by any Holder by way of indemnity or contribution under Subsections 2.8(b) and 2.8(d) exceed the proceeds from the offering received by such Holder (net of any Selling Expenses paid by such Holder), except in the case of fraud
or willful misconduct by such Holder. 
 (c)    Promptly after receipt by an indemnified party under this Subsection
2.8 of notice of the commencement of any action (including any governmental action) for which a party may be entitled to indemnification hereunder, such indemnified party will, if a claim in respect thereof is to be made against any indemnifying
party under this Subsection 2.8, give the indemnifying party notice of the commencement thereof. The indemnifying party shall have the right to participate in such action and, to the extent the indemnifying party so desires, participate
jointly with any other indemnifying party to which notice has 

  
 13 

 
been given, and to assume the defense thereof with counsel mutually satisfactory to the parties; provided, however, that an indemnified party (together with all other indemnified
parties that may be represented without conflict by one counsel) shall have the right to retain one separate counsel, with the fees and expenses to be paid by the indemnifying party, if representation of such indemnified party by the counsel
retained by the indemnifying party would be inappropriate due to actual or potential differing interests between such indemnified party and any other party represented by such counsel in such action. The failure to give notice to the indemnifying
party within a reasonable time of the commencement of any such action shall relieve such indemnifying party of any liability to the indemnified party under this Subsection 2.8, to the extent that such failure materially prejudices the
indemnifying party’s ability to defend such action. The failure to give notice to the indemnifying party will not relieve it of any liability that it may have to any indemnified party otherwise than under this Subsection 2.8. 

(d)    To provide for just and equitable contribution to joint liability under the Securities Act in any case in which
either: (i) any party otherwise entitled to indemnification hereunder makes a claim for indemnification pursuant to this Subsection 2.8 but it is judicially determined (by the entry of a final judgment or decree by a court of competent
jurisdiction and the expiration of time to appeal or the denial of the last right of appeal) that such indemnification may not be enforced in such case, notwithstanding the fact that this Subsection 2.8 provides for indemnification in such
case, or (ii) contribution under the Securities Act may be required on the part of any party hereto for which indemnification is provided under this Subsection 2.8, then, and in each such case, such parties will contribute to the
aggregate losses, claims, damages, liabilities, or expenses to which they may be subject (after contribution from others) in such proportion as is appropriate to reflect the relative fault of each of the indemnifying party and the indemnified party
in connection with the statements, omissions, or other actions that resulted in such loss, claim, damage, liability, or expense, as well as to reflect any other relevant equitable considerations. The relative fault of the indemnifying party and of
the indemnified party shall be determined by reference to, among other things, whether the untrue or allegedly untrue statement of a material fact, or the omission or alleged omission of a material fact, relates to information supplied by the
indemnifying party or by the indemnified party and the parties’ relative intent, knowledge, access to information, and opportunity to correct or prevent such statement or omission; provided, however, that, in any such case
(x) no Holder will be required to contribute any amount in excess of the public offering price of all such Registrable Securities offered and sold by such Holder pursuant to such Registration Statement, and (y) no Person guilty of
fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) will be entitled to contribution from any Person who was not guilty of such fraudulent misrepresentation; and provided, further, that in no
event shall a Holder’s liability pursuant to this Subsection 2.8(d), when combined with the amounts paid or payable by such Holder pursuant to Subsection 2.8(b), exceed the proceeds from the offering received by such Holder (net
of any Selling Expenses paid by such Holder), except in the case of willful misconduct or fraud by such Holder. 

(e)    Notwithstanding the foregoing, to the extent that the provisions on indemnification and contribution contained in
the underwriting agreement entered into in connection with the underwritten public offering are in conflict with the foregoing provisions, the provisions in the underwriting agreement shall control. 

(f)    Unless otherwise superseded by an underwriting agreement entered into in connection with the underwritten public
offering, the obligations of the Company and Holders under this Subsection 2.8 shall survive the completion of any offering of Registrable Securities in a registration under this Section 2, and otherwise shall
survive the termination of this Agreement. 
 2.9    Reports Under Exchange Act. With a view to making available
to the Holders the benefits of SEC Rule 144 and any other rule or regulation of the SEC that may at any time permit a Holder to sell securities of the Company to the public without registration or pursuant to a registration on Form S-3, the Company shall: 

  
 14 

 (a)    make and keep available adequate current public information, as
those terms are understood and defined in SEC Rule 144, at all times after the effective date of the Registration Statement filed by the Company for the IPO; 

(b)    use commercially reasonable efforts to file with the SEC in a timely manner all reports and other documents
required of the Company under the Securities Act and the Exchange Act (at any time after the Company has become subject to such reporting requirements); and 

(c)    furnish to any Holder, so long as the Holder owns any Registrable Securities, forthwith upon request (i) to
the extent accurate, a written statement by the Company that it has complied with the reporting requirements of SEC Rule 144 (at any time after ninety (90) days after the effective date of the Registration Statement filed by the Company for the
IPO), the Securities Act, and the Exchange Act (at any time after the Company has become subject to such reporting requirements), or that it qualifies as a registrant whose securities may be resold pursuant to Form
S-3 (at any time after the Company so qualifies); and (ii) such other information as may be reasonably requested in availing any Holder of any rule or regulation of the SEC that permits the selling of any
such securities without registration (at any time after the Company has become subject to the reporting requirements under the Exchange Act) or pursuant to Form S-3 (at any time after the Company so qualifies
to use such form). 
 2.10    Limitations on Subsequent Registration Rights. From and after the date of this
Agreement, the Company shall not, without the prior written consent of the Holders of a majority of the Registrable Securities then outstanding, enter into any agreement with any holder or prospective holder of any securities of the Company that
would (a) allow such holder or prospective holder to include such securities in any registration unless, under the terms of such agreement, such holder or prospective holder may include such securities in any such registration only to the
extent that the inclusion of such securities will not reduce the number of the Registrable Securities of the Holders that are included; or (b) allow such holder or prospective holder to initiate a demand for registration of any securities held
by such holder or prospective holder. 
 2.11    “Market
Stand-off” Agreement. Each Holder hereby agrees that it will not, without the prior written consent of the managing underwriter, during the period commencing on the date of the final
Prospectus relating to the registration by the Company for its own behalf of shares or units (as applicable) of its Common Stock or any other equity securities under the Securities Act on a Registration Statement on Form S-1, or Form S-3, and ending on the date specified by the Company and the managing underwriter (such period not to exceed one hundred eighty (180) days in the case of the
IPO), (a) lend; offer; pledge; sell; contract to sell; sell any option or contract to purchase; purchase any option or contract to sell; grant any option, right, or warrant to purchase; or otherwise transfer or dispose of, directly or indirectly,
any shares or units (as applicable) of Common Stock or any securities convertible into or exercisable or exchangeable (directly or indirectly) for Common Stock held immediately before the effective date of the Registration Statement for such
offering or (b) enter into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of such securities, whether any such transaction described in clause (a) or (b) above is
to be settled by delivery of Common Stock or other securities, in cash, or otherwise. The foregoing provisions of this Subsection 2.11 shall apply only to the IPO, shall not apply to the sale of any shares or units (as applicable) to an
underwriter pursuant to an underwriting agreement, or the transfer of any shares or units (as applicable) to any trust for the direct or indirect benefit of the Holder or the immediate family of the Holder, provided that the trustee of the
trust agrees to be bound in writing by the restrictions set forth herein, and provided, further, that any such transfer shall not involve a disposition for value, and shall be 

  
 15 

 
applicable to the Holders only if all officers and directors are subject to the same restrictions and the Company uses commercially reasonable efforts to obtain a similar agreement from all
Holders individually owning more than one percent (1%) of the Company’s outstanding Common Stock (after giving effect to the conversion into Common Stock of any other outstanding securities of the Company). The underwriters in connection with
such registration are intended third-party beneficiaries of this Subsection 2.11 and shall have the right, power and authority to enforce the provisions hereof as though they were a party hereto. Each Holder further agrees to execute such
agreements as may be reasonably requested by the underwriters in connection with such registration that are consistent with this Subsection 2.11 or that are necessary to give further effect thereto. Any discretionary waiver or termination of
the restrictions of any or all of such agreements by the Company or the underwriters shall apply pro rata to all Holders subject to such agreements, based on the number of shares or units (as applicable) subject to such agreements. 

2.12    Restrictions on Transfer. 

(a)    Each certificate, instrument, or book entry representing (i) the Common Stock, (ii) the Registrable
Securities, and (iii) any other securities issued in respect of the securities referenced in clauses (i) and (ii), upon any stock split, stock dividend, recapitalization, merger, consolidation, or similar event, shall (unless otherwise
permitted by the provisions of Subsection 2.12(b)) be notated with a legend substantially in the following form: 

THE SECURITIES REPRESENTED HEREBY HAVE BEEN ACQUIRED FOR INVESTMENT AND HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF
1933. SUCH SHARES OR UNITS (AS APPLICABLE) MAY NOT BE SOLD, PLEDGED, OR TRANSFERRED IN THE ABSENCE OF SUCH REGISTRATION OR A VALID EXEMPTION FROM THE REGISTRATION AND PROSPECTUS DELIVERY REQUIREMENTS OF SAID ACT. THE SECURITIES REPRESENTED HEREBY
MAY BE TRANSFERRED ONLY IN ACCORDANCE WITH THE TERMS OF AN AGREEMENT BETWEEN THE COMPANY AND THE SHAREHOLDER, A COPY OF WHICH IS ON FILE WITH THE SECRETARY OF THE COMPANY. 

The Holders consent to the Company making a notation in its records and giving instructions to any transfer agent of the Restricted Securities
in order to implement the restrictions on transfer set forth in this Subsection 2.12. 
 (b)    The holder of
such Restricted Securities, by acceptance of ownership thereof, agrees to comply in all respects with the provisions of this Section 2. Before any proposed sale, pledge, or transfer of any Restricted Securities, unless
there is in effect a Registration Statement under the Securities Act covering the proposed transaction, the Holder thereof shall give notice to the Company of such Holder’s intention to effect such sale, pledge, or transfer. Each such notice
shall describe the manner and circumstances of the proposed sale, pledge, or transfer in sufficient detail and, if reasonably requested by the Company, shall be accompanied at such Holder’s expense by either (i) a written opinion of legal
counsel who shall, and whose legal opinion shall, be reasonably satisfactory to the Company, addressed to the Company, to the effect that the proposed transaction may be effected without registration under the Securities Act; (ii) a “no
action” letter from the SEC to the effect that the proposed sale, pledge, or transfer of such Restricted Securities without registration will not result in a recommendation by the staff of the SEC that action be taken with respect thereto; or
(iii) any other evidence reasonably satisfactory to counsel to the Company to the effect that the proposed sale, pledge, or transfer of the Restricted Securities may be effected without registration under the Securities Act, whereupon the
Holder of such Restricted Securities shall be entitled to sell, pledge, or transfer such Restricted Securities in accordance with the terms of the notice given by the Holder to the Company. The Company will not require such a legal opinion or
“no 

  
 16 

 
action” letter (x) in any transaction in compliance with SEC Rule 144; or (y) in any transaction in which such Holder distributes Restricted Securities to an Affiliate of such
Holder for no consideration; provided that each transferee agrees in writing to be subject to the terms of this Subsection 2.12. Each certificate, instrument, or book entry representing the Restricted Securities transferred as above
provided shall be notated with, except if such transfer is made pursuant to SEC Rule 144, the appropriate restrictive legend set forth in Subsection 2.12(a), except that such certificate instrument, or book entry shall not be notated with
such restrictive legend if, in the opinion of counsel for such Holder and the Company, such legend is not required in order to establish compliance with any provisions of the Securities Act. 

2.13    Termination of Registration Rights. The right of any Holder to request registration or inclusion of
Registrable Securities in any registration pursuant to Subsections 2.1 or 2.2 shall terminate at such time as SEC Rule 144(b)(1) under the Securities Act (or any successor provision) is available for the sale of all of such
Holder’s shares without any need to comply with the public information requirements of SEC Rule 144(b)(1) (or any successor provision) or any such shares are sold pursuant to SEC Rule 144. 

3.    Miscellaneous. 

3.1    Successors and Assigns. The rights under this Agreement may be assigned (but only with all related
obligations) by a Holder to a transferee of Registrable Securities that (a) is an Affiliate of a Holder; (b) is a Holder’s Immediate Family Member or trust for the benefit of an individual Holder or one or more of such Holder’s
Immediate Family Members; or (c) after such transfer, holds at least one percent (1%) of the Company’s then outstanding Registrable Securities; provided, however, that (i) the Company is, within a reasonable time after
such transfer, furnished with written notice of the name and address of such transferee and the Registrable Securities with respect to which such rights are being transferred; and (ii) such transferee agrees in a written instrument delivered to
the Company to be bound by and subject to the terms and conditions of this Agreement, including the provisions of Subsection 2.11. For the purposes of determining the number of shares or units (as applicable) of Registrable Securities held by
a transferee, the holdings of a transferee (1) that is an Affiliate, member or stockholder of a Holder; (2) who is a Holder’s Immediate Family Member; or (3) that is a trust for the benefit of an individual Holder or such
Holder’s Immediate Family Member shall be aggregated together and with those of the transferring Holder; provided, further, that all transferees who would not qualify individually for assignment of rights shall have a single attorney-in-fact for the purpose of exercising any rights, receiving notices, or taking any action under this Agreement. The terms and conditions of this Agreement inure to
the benefit of and are binding upon the respective successors and permitted assignees of the parties. Nothing in this Agreement, express or implied, is intended to confer upon any party other than the parties hereto or their respective successors
and permitted assignees any rights, remedies, obligations or liabilities under or by reason of this Agreement, except as expressly provided herein. 

3.2    Counterparts. This Agreement may be executed in two (2) or more counterparts, each of which shall be
deemed an original, but all of which together shall constitute one and the same instrument. Counterparts may be delivered via facsimile, electronic mail (including pdf or any electronic signature complying with the U.S. federal ESIGN Act of 2000,
e.g., www.docusign.com) or other transmission method and any counterpart so delivered shall be deemed to have been duly and validly delivered and be valid and effective for all purposes. 

3.3    Titles and Subtitles. The titles and subtitles used in this Agreement are for convenience only and are not
to be considered in construing or interpreting this Agreement. 
 3.4    Notices. All notices and other
communications given or made pursuant to this Agreement shall be in writing and shall be deemed effectively given upon the earlier of actual receipt or (a) personal delivery to the party to be notified; (b) when sent, if sent by electronic
mail or facsimile during the 

  
 17 

 
recipient’s normal business hours, and if not sent during normal business hours, then on the recipient’s next Business Day; (c) five (5) days after having been sent by registered
or certified mail, return receipt requested, postage prepaid; or (d) one (1) Business Day after the Business Day of deposit with a nationally recognized overnight courier, freight prepaid, specifying
next-day delivery, with written verification of receipt. All communications shall be sent to the respective parties at their addresses as set forth on Schedule A hereto, or to the principal office of
the Company and to the attention of the Chief Executive Officer, in the case of the Company, or to such email address, facsimile number, or address as subsequently modified by written notice given in accordance with this Subsection 3.4. 

3.5    Amendments and Waivers. Any term of this Agreement may be amended and the observance of any term of this
Agreement may be waived (either generally or in a particular instance, and either retroactively or prospectively) only with the written consent of the Company and the Holders of seventy-five percent (75%) of the Registrable Securities then
outstanding; provided that the Company may in its sole discretion waive compliance with Subsection 2.12(b) (and the Company’s failure to object promptly in writing after notification of a proposed assignment allegedly in violation
of Subsection 2.12(b) shall be deemed to be a waiver); and provided further, that any provision hereof may be waived by any waiving party on such party’s own behalf, without the consent of any other party. The Company shall
give prompt notice of any amendment or termination hereof or waiver hereunder to any party hereto that did not consent in writing to such amendment, termination, or waiver. Any amendment, termination, or waiver effected in accordance with this
Subsection 3.5 shall be binding on all parties hereto, regardless of whether any such party has consented thereto. No waivers of or exceptions to any term, condition, or provision of this Agreement, in any one or more instances, shall be
deemed to be or construed as a further or continuing waiver of any such term, condition, or provision. Notwithstanding the foregoing, in no event may the demand registration rights granted to any Holder pursuant to
Section 2.1 of this Agreement be removed or otherwise adversely changed without the prior written consent of such Holders. 

3.6    Severability. In case any one or more of the provisions contained in this Agreement is for any reason held
to be invalid, illegal or unenforceable in any respect, such invalidity, illegality, or unenforceability shall not affect any other provision of this Agreement, and such invalid, illegal, or unenforceable provision shall be reformed and construed so
that it will be valid, legal, and enforceable to the maximum extent permitted by law. 
 3.7    Entire Agreement.
This Agreement (including any Schedules and Exhibits hereto) constitutes the full and entire understanding and agreement among the parties with respect to the subject matter hereof (other than any lock-up or
similar agreement between any Holder and any underwriter), and any other written or oral agreement relating to the subject matter hereof existing between the parties is expressly canceled. This Agreement hereby amends, restates and supersedes the
Original Registration Rights Agreement in all respects. 
 3.8    Governing Law; Jurisdiction. This Agreement
shall be governed by and construed in accordance with the internal laws of the State of Delaware without regard to the conflicts of law principles of such State. The parties (a) hereby irrevocably and unconditionally submit to the jurisdiction
of the courts of the State of Delaware sitting in New Castle County and to the jurisdiction of the United States District Court sitting in Wilmington, Delaware for the purpose of any suit, action or other proceeding arising out of or based upon this
Agreement, (b) agree not to commence any suit, action or other proceeding arising out of or based upon this Agreement except in the courts of the State of Delaware sitting in New Castle County or the United States District Court sitting in
Wilmington, Delaware, and (c) hereby waive, and agree not to assert, by way of motion, as a defense, or otherwise, in any such suit, action or proceeding, any claim that it is not subject personally to the jurisdiction of the above-named courts, that its property is exempt or immune from attachment or execution, that the suit, action or proceeding is brought in an inconvenient forum, that the venue of the suit, action or proceeding is
improper or that this Agreement or the subject matter hereof may not be enforced in or by such court. 

  
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 3.9    WAIVER OF JURY TRIAL. EACH PARTY HEREBY WAIVES ITS RIGHTS
TO A JURY TRIAL OF ANY CLAIM OR CAUSE OF ACTION BASED UPON OR ARISING OUT OF THIS AGREEMENT, THE OTHER TRANSACTION DOCUMENTS, THE SECURITIES OR THE SUBJECT MATTER HEREOF OR THEREOF. THE SCOPE OF THIS WAIVER IS INTENDED TO BE ALL-ENCOMPASSING OF ANY AND ALL DISPUTES THAT MAY BE FILED IN ANY COURT AND THAT RELATE TO THE SUBJECT MATTER OF THIS TRANSACTION, INCLUDING, WITHOUT LIMITATION, CONTRACT CLAIMS, TORT CLAIMS (INCLUDING NEGLIGENCE),
BREACH OF DUTY CLAIMS, AND ALL OTHER COMMON LAW AND STATUTORY CLAIMS. THIS SECTION HAS BEEN FULLY DISCUSSED BY EACH OF THE PARTIES HERETO AND THESE PROVISIONS WILL NOT BE SUBJECT TO ANY EXCEPTIONS. EACH PARTY HERETO HEREBY FURTHER WARRANTS AND
REPRESENTS THAT SUCH PARTY HAS REVIEWED THIS WAIVER WITH ITS LEGAL COUNSEL, AND THAT SUCH PARTY KNOWINGLY AND VOLUNTARILY WAIVES ITS JURY TRIAL RIGHTS FOLLOWING CONSULTATION WITH LEGAL COUNSEL. 

3.10    Delays or Omissions. No delay or omission to exercise any right, power, or remedy accruing to any party
under this Agreement, upon any breach or default of any other party under this Agreement, shall impair any such right, power, or remedy of such nonbreaching or nondefaulting party, nor shall it be construed to be a waiver of or acquiescence to any
such breach or default, or to any similar breach or default thereafter occurring, nor shall any waiver of any single breach or default be deemed a waiver of any other breach or default theretofore or thereafter occurring. All remedies, whether under
this Agreement or by law or otherwise afforded to any party, shall be cumulative and not alternative. 

3.11    Other Interpretive Matters. For purposes of this Agreement, (a) when calculating the period of time
before which, within which or following which any act is to be done or step taken pursuant to this Agreement, the date that is the reference date in calculating such period is excluded, and if the last day of such period is a non-Business Day, the period in question ends on the next succeeding Business Day, (b) unless the context otherwise requires, all references in this Agreement to any “Article,” “Section” or
“Exhibit” are to the corresponding Article, Section or Exhibit of this Agreement, (c) the word “including,” or any variation thereof, means “including, without limitation” and does not limit any general statement
that it follows to the specific or similar items or matters immediately following it, and (d) all references to dollar amounts are expressed in United States Dollars. As used herein, the singular shall include the plural, the plural shall
include the singular and any use of the male or female gender shall include the other gender, all wherever the same shall be applicable and when the context shall admit or require. 

3.12    No Recourse. Notwithstanding anything to the contrary that may be expressed or implied in this Agreement,
and notwithstanding the fact that any Holder or its Affiliates or any of its or their successors or permitted assignees may be a partnership or a limited liability company, the Company, by its acceptance of the benefits hereof, covenants, agrees and
acknowledges that no Person other than the Holders and their respective successors and permitted assignees shall have any obligation hereunder, and that it has no rights of recovery against, and no recourse hereunder against, any former, current or
future director, officer, agent, advisor, attorney, representative, Affiliate, manager or employee of any Holder (or any of its successors or assignees), against any former, current or future general or limited partner, manager, member or
stockholder of any Holder or any Affiliate thereof or against any former, current or future director, officer, agent, advisor, attorney, representative, employee, Affiliate, assignee, general or limited partner, stockholder, manager or member of any
of the foregoing, whether by or through attempted piercing of the corporate veil, by the enforcement of any judgment or assessment or by any legal or equitable proceeding, or by virtue of any statute, regulation or other applicable law. 

  
 19 

 3.13    Specific Performance. The rights of each party to
consummate the transactions contemplated hereby are agreed to be unique, and recognizing that the remedy at law for any breach or threatened breach by a party hereto of the agreements and conditions set forth herein would be inadequate, and further
recognizing that any such breach or threatened breach would cause immediate, irreparable and permanent damage to the parties, the extent of which would be impossible or difficult to ascertain, the parties hereto agree that in the event of any such
breach or threatened breach, and in addition to any and all remedies at law or otherwise provided herein, any party hereto may specifically enforce the terms of this Agreement and may obtain temporary and/or permanent injunctive relief (including a
mandatory injunction) without the necessity of proving actual damage or the lack of an adequate remedy at law and, to the extent permissible under applicable rules, provision and statutes, a temporary injunction may be granted immediately upon the
commencement of any suit hereunder regardless of whether the breaching party or parties have actually received notice thereof. Such remedy shall be cumulative and not exclusive, and shall be in addition to any other remedy or remedies available to
the parties. 
 3.14    ECP Representative. Each of the ECP Holders has designated the ECP Representative to act
as its representative with respect to the making of, and the delivery and receipt of, all notices, elections, approvals, requests or other instructions or determinations (including as to whether any condition has been met to the satisfaction of such
ECP Holder) (each, a “Notice”) and to otherwise act on behalf of any or all of the ECP Holders with respect to any Notices delivered in connection with this Agreement. The ECP Holders shall cause the ECP Representative to act at the
direction of the ECP Holders holding a majority of Registrable Securities held by all of the ECP Holders with respect to all such Notices. The Company shall direct any Notice to be made to any ECP Holder to the ECP Representative and agree that any
Notice delivered under this Agreement by the ECP Representative shall be deemed to be a Notice delivered by the ECP Holders. Any Notice made to the ECP Representative (referencing the ECP Holders) shall be deemed to have been made to the ECP Holders
in the form and at the time made to the ECP Representative. 
 [Remainder of Page Intentionally Left Blank] 

  
 20 

 IN WITNESS WHEREOF, the parties have duly executed this Agreement as of the date first
written above. 
  

			
	 COMPANY:
  

Sunnova Energy International Inc.

		
	By:	 	 /s/ William J. Berger

	Name:	 	William J. Berger
	Title:	 	Chairman of the Board, President and Chief Executive Officer

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
					
	ENERGY CAPITAL PARTNERS III, LP
			
	By:	 		 	 Energy Capital Partners GP III, LP,

		 		 	 its general partner

			
		 	By:	 	 Energy Capital Partners III, LLC,

		 		 	 its, general partner

			
		 	By:	 	 ECP ControlCo, LLC,

		 		 	 its managing member

			
		 	By:	 	 /s/ Rahman D’Argenio

		 		 	Name: Rahman D’Argenio
		 		 	Title: Authorized Signatory
	
	 ENERGY CAPITAL PARTNERS III-A,
LP

			
	By:	 		 	 Energy Capital Partners GP III, LP,

		 		 	 its general partner

			
		 	By:	 	 Energy Capital Partners III, LLC,

		 		 	 its general partner

			
		 	By:	 	 ECP ControlCo, LLC,

		 		 	 its managing member

			
		 	By:	 	 /s/ Rahman D’Argenio

		 		 	Name: Rahman D’Argenio
		 		 	Title: Authorized Signatory

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
					
	ENERGY CAPITAL PARTNERS III-B, LP
			
	By:	 		 	 Energy Capital Partners GP III, LP,

		 		 	 its general partner

			
		 	By:	 	 Energy Capital Partners III, LLC,

		 		 	 its general partner

			
		 	By:	 	 ECP ControlCo, LLC,

		 		 	 its managing member

			
		 	By:	 	 /s/ Rahman D’Argenio

		 		 	Name: Rahman D’Argenio
		 		 	Title: Authorized Signatory
	
	 ENERGY CAPITAL PARTNERS III-C,
LP

			
	By:	 		 	 Energy Capital Partners GP III, LP,

		 		 	 its general partner

			
		 	By:	 	 Energy Capital Partners III, LLC,

		 		 	 its general partner

			
		 	By:	 	 ECP ControlCo, LLC

		 		 	 its managing member

			
		 	By:	 	 /s/ Rahman D’Argenio

		 		 	Name: Rahman D’Argenio
		 		 	Title: Authorized Signatory

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
					
	ENERGY CAPITAL PARTNERS III-D, LP
			
	By:	 		 	 Energy Capital Partners GP III, LP,

		 		 	 its general partner

			
		 	By:	 	 Energy Capital Partners III, LLC,

		 		 	 its general partner

			
		 	By:	 	 ECP ControlCo, LLC,

		 		 	 its managing member

			
		 	By:	 	 /s/ Rahman D’Argenio

		 		 	Name: Rahman D’Argenio
		 		 	Title: Authorized Signatory
	
	ENERGY CAPITAL PARTNERS III (SUNNOVA CO-INVEST), LP
			
	By:	 		 	 Energy Capital Partners GP III Co-Investment (Sunnova), LLC,

		 		 	 its general partner

			
		 	By:	 	 Energy Capital Partners III, LLC,

		 		 	 its general partner

			
		 	By:	 	 ECP ControlCo, LLC,

		 		 	 its managing member

			
		 	By:	 	 /s/ Rahman D’Argenio

		 		 	Name: Rahman D’Argenio
		 		 	Title: Authorized Signatory

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
			
	QSIP LP
		
	By:	 	 /s/ David Taylor

		 	Name: David Taylor
		 	Title: Authorized Signatory

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
			
	FS ENERGY AND POWER FUND
		
	By:	 	 /s/ Sean Coleman

		 	Name: Sean Coleman
		 	Title: Authorized Signatory

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
			
	FS KKR Capital Corp.
		
	By:	 	 /s/ Brian Gerson

		 	Name: Brian Gerson
		 	Title: Authorized Signatory

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
			
	FS INVESTMENT CORPORATION II
		
	By:	 	 /s/ Brian Gerson

		 	Name: Brian Gerson
		 	Title: Authorized Signatory

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
			
	FS INVESTMENT CORPORATION III
		
	By:	 	 /s/ Brian Gerson

		 	Name: Brian Gerson
		 	Title: Authorized Signatory

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
			
	ORIX PUBLIC FINANCE, LLC
		
	By:	 	 /s/ Benjamin Price

		 	Name: Benjamin Price
		 	Title: Authorized Signatory

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
					
	ELK MOUNTAIN, LTD.
	
	By: Gordy Oil Company,
its general partner
			
	    	 	By:	 	 /s/ Russell Gordy

		 		 	Name: Russell D. Gordy
		 		 	Title: Authorized Signatory

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
					
	MINION TRAIL, LTD.
	
	By: Elk Mountain Ltd.,
	its general partner
	
	By: Gordy Oil Company,
	its general partner
			
	    	 	By:	 	 /s/ Russell Gordy

		 		 	Name: Russell D. Gordy
		 		 	Title: Authorized Signatory

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
					
	BCP-IIIJ, LP
	
	By: Brock Capital Group, LLC,
its general partner
			
		 	By:	 	 /s/ Brad Brock

		 		 	Name: Braden Brock
		 		 	Title: Authorized Signatory
	
	BCP-IVC, LP
	
	By: Brock Capital Group, LLC,
its general partner
			
		 	By:	 	 /s/ Brad Brock

		 		 	Name: Braden Brock
	    	 		 	Title: Authorized Signatory

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
			
	MTP ENERGY MASTER FUND LTD.
		
	By:	 	MTP Energy Management LLC,
		 	its Investment Manager
		
	By:	 	Magnetar Financial LLC,
		 	its Sole Member
		
	By:	 	 /s/ Michael Turro

		 	Name: Michael Turro
		 	Title: Authorized Signatory

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
			
	MTP EMERALD FUND LTD.
		
	By:	 	MTP Energy Management LLC,
		 	its Investment Manager
		
	By:	 	Magnetar Financial LLC,
		 	its Sole Member
		
	By:	 	 /s/ Michael Turro

		 	Name: Michael Turro
		 	Title: Authorized Signatory

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
			
	TRIANGLE PEAK PARTNERS II, LP
		
	By:	 	Triangle Peak Partners II General Partner, LLC,
its general partner
		
	By:	 	 /s/ Dain DeGroff

		 	Name: Dain DeGroff
		 	Title: Authorized Signatory

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
			
	TPP II Annex Fund, LP
		
	By:	 	General Partner of TPP Annex Fund, LP
		
	By:	 	 /s/ Dain DeGroff

		 	Name: Dain DeGroff
		 	Title: Authorized Signatory

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
			
	 SEIS HOLDINGS LLC

		
	By:	 	 /s/ C. Park Shaper

	Name: C. Park Shaper
	Title: Authorized Signatory

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
			
	 CGK HOLDINGS LLC

		
	By:	 	 /s/ David Kinder

		 	Name: David Kinder
		 	Title: Authorized Signatory

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
	
	 /s/ Fayez Sarofim

	Fayez Sarofim

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
			
	 FSI NO. 2 CORPORATION

		
	By:	 	 /s/ Raye G. White

		 	Name: Raye G. White
		 	Title: Authorized Signatory

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
			
	PORTCULLIS PARTNERS, LP
		
	By:	 	 Portcullis G.P., LLC,

		 	 its general partner

		
	By:	 	 /s/ Duane G. Valley

		 	Name: Duane G. Valley
		 	Title: Authorized Signatory

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
			
	THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY (DAPER II)
		
	By:	 	 /s/ Sabrina Lang

	 	 	Name: Sabrina Lang
	 	 	Title: Authorized Signatory

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
			
	REBECCA RABINOW MANAGEMENT TRUST
		
	By:	 	 /s/ Richard A. Rabinow

	 	 	Name: Richard A. Rabinow
	 	 	Title: Authorized Signatory

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
			
	1811 PESIKOFF FAMILY TRUST
		
	By:	 	 /s/ David Pesikoff

	 	 	Name: David Pesikoff
	 	 	Title: Authorized Signatory

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
	
	 /s/ Richard A. Rabinow

	Richard A. Rabinow

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
			
	JACKSON LEIGH VENTURES, LLC
		
	By:	 	 /s/ William J. Berger

	 	 	Name: William J. Berger
	 	 	Title: Authorized Signatory

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
			
	GREENWAY LOANCO, LLC
		
	By:	 	 /s/ Trevor J. Brock

	 	 	Name: Trevor J. Brock
	 	 	Title: Authorized Signatory

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
	
	 /s/ William J. Berger

	William J. Berger

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
	
	 /s/ William J. Berger

	William J. Berger, IRA

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
	
	 /s/ Jordan E. Fruge

	Jordan E. Frugé

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
	
	 /s/ Lynda Attaway

	Lynda K. Attaway

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
	
	 /s/ Gerritt L. Ewing, Jr.

	Gerritt L. Ewing, Jr.

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
			
	 MOELLER INVESTMENT FAMILY LIMITED PARTNERSHIP

		
	By:	 	Racing Cloud Consulting LLC,
its general partner
		
	By:	 	 /s/ Debra E. Moeller

		 	Name: Debra E. Moeller
		 	Title: Authorized Signatory

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
	
	 /s/ Brian A. Kerrigan

	Brian A. Kerrigan

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
			
	BA AND MS BRIAN KERRIGAN, LLC
		
	By:	 	 /s/ Brian A. Kerrigan

		 	Name: Brian A. Kerrigan
		 	Title: Authorized Signatory

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
	
	 /s/ Mark Poche

	Mark Poche

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 
	
	 /s/ Esmerelda Martinez

	Esmeralda Martinez

  
 [Signature Page to Second
Amended and Restated Registration Rights Agreement] 

 SCHEDULE A 

Holders 
  

 
  

			
	 Name
	  	 Address

	Energy Capital Partners III, LP	  	 51 John F Kennedy Pkwy #200
 Short Hills, NJ
07078

		
	Energy Capital Partners III-A, LP	  	 51 John F Kennedy Pkwy #200
 Short Hills, NJ
07078

		
	Energy Capital Partners III-B, LP	  	 51 John F Kennedy Pkwy #200
 Short Hills, NJ
07078

		
	Energy Capital Partners III-C, LP	  	 51 John F Kennedy Pkwy #200
 Short Hills, NJ
07078

		
	Energy Capital Partners III-D, LP	  	 51 John F Kennedy Pkwy #200
 Short Hills, NJ
07078

		
	Energy Capital Partners III (Sunnova Co-Invest), LP	  	 51 John F Kennedy Pkwy #200
 Short Hills, NJ
07078

		
	QSIP LP	  	c/o Soros Fund Management LLC 
250 West 55th Street, 38th Floor 
New York, NY 10019
		
	FS Energy and Power Fund	  	 c/o EIG / Blackstone Debt Funds Management LLC

345 Park Avenue, 31st Floor New York, NY 10154

		
	FS KKR Capital Corp.	  	 c/o EIG / Blackstone Debt Funds Management LLC

345 Park Avenue, 31st Floor New York, NY 10154

		
	FS Investment Corporation II	  	 c/o EIG / Blackstone Debt Funds Management LLC

345 Park Avenue, 31st Floor New York, NY 10154

		
	FS Investment Corporation III	  	 c/o EIG / Blackstone Debt Funds Management LLC

345 Park Avenue, 31st Floor New York, NY 10154

		
	Orix Public Finance	  	 1717 Main Street, Suite 900,
 Dallas, Texas
75201

  
 Schedule A 

			
	Elk Mountain, Ltd.	  	100 Waugh Drive, #400 
Houston, TX 77007
		
	Minion Trail, Ltd.	  	100 Waugh Drive, #400 
Houston, TX 77007
		
	BCP-IIIJ, LP	  	 4349 Crow Rd.
 Beaumont, TX
77706

		
	BCP-IVC, LP	  	 4349 Crow Rd.
 Beaumont, TX
77706

		
	MTP Emerald Fund LLC	  	c/o MTP Energy Management LLC 1603 Orrington Ave.,
13th Floor Evanston, IL 60201
		
	MTP Energy Master Fund Ltd	  	c/o MTP Energy Management LLC 1603 Orrington Ave.,
13th Floor Evanston, IL 60201
		
	Triangle Peak Partners II, LP	  	P.O. Box 3788 
Carmel, CA 93921
		
	TPP II Annex Fund, LP	  	P.O. Box 3788 
Carmel, CA 93921
		
	SEIS Holdings LLC	  	501 Bering Dr, #220 
Houston, TX 77057
		
	CGK Holdings LLC	  	501 Bering Dr. #220 
Houston, TX 77057
		
	Fayez Sarofim	  	P.O. Box 52830 Houston, TX 77052
		
	FSI No. 2 Corporation	  	P.O. Box 52830 Houston, TX 77052
		
	Portcullis Partners, LP	  	11 Greenway Plaza, Suite 2000 Houston, TX 77046
		
	The Board of Trustees of the Leland Stanford Junior University (DAPER II)	  	 635 Knight Way
 Stanford, CA,
94305-7297

		
	Rebecca Rabinow Management Trust	  	3711 San Felipe #12-I 
Houston, TX 77027
		
	1811 Pesikoff Family Trust (formerly the Sarah Rabinow Management Trust)	  	1811 North Blvd. 
Houston, TX 77098
		
	Richard A. Rabinow	  	3711 San Felipe #12-I 
Houston, TX 77027
		
	Jackson Leigh Ventures, LLC	  	3775 Arnold St. 
Houston, TX 77005
		
	William J. Berger	  	 3775 Arnold
 Houston, TX 77005

  
 Schedule A 

			
	William J. Berger, IRA	  	 3775 Arnold
 Houston, TX 77005

		
	Greenway LoanCo, LLC	  	 2808 Fairmount Ste. 100
 Dallas, TX
75201

		
	Jordan E. Frugé	  	 730 Omar
 Houston, TX 77009

		
	Lynda K. Attaway	  	1116 Rymer Switch 
Friendswood, TX 77546
		
	Gerritt L. Ewing, Jr.	  	4110 Blue Bonnet Dr.
Houston, TX 77025
		
	Moeller Investment Family Limited Partnership	  	 98 W. Racing Cloud Ct.
 The Woodlands, TX
77381

		
	Brian A. Kerrigan	  	6139 Doliver Dr., Houston, TX 77057
		
	BA and MS Brian Kerrigan, LLC	  	 6139 Doliver Dr.
 Houston, TX
77057

		
	Mark Poche	  	3411 S. Halls Point Ct. 
Missouri City, TX 77459
		
	Esmeralda Martinez	  	25818 Riverside Creek Dr.
Richmond, TX 77406

  
 Schedule A

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