Sunnova Energy International Inc. ("Sunnova") today - July 12, 2019 - announced that it has launched the initial public offering of 17,647,059 shares of its common stock. The underwriters will have a 30-day option to purchase an additional 2,647,059 shares from Sunnova at the initial public offering price, less underwriting discounts and commissions. The initial public offering price is expected to be between $16.00 and $18.00 per share. The shares have been approved for listing on the New York Stock Exchange under the ticker symbol "NOVA."

BofA Merrill Lynch, J.P. Morgan and Goldman Sachs & Co. LLC are acting as joint book-running managers for the offering. Credit Suisse is also acting as a joint book-running manager. KeyBanc Capital Markets, Baird and Roth Capital Partners are acting as co-managers.

The offering will be made only by means of a prospectus meeting the requirements of Section 10 of the Securities Act. Copies of the preliminary prospectus relating to this offering, when available, may be obtained from BofA Merrill Lynch, NC1-004-03-43, 200 North College Street, 3rd floor, Charlotte NC 28255-0001, Attn: Prospectus Department, Email: [email protected]; J.P. Morgan Securities LLC, c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, NY 11717, Attention: Prospectus Department, Telephone: 866-803-9204; Goldman Sachs & Co. LLC, Prospectus Department, 200 West Street, New York, NY 10282, Telephone: 1-866-471-2526, Facsimile: 212-902-9316, Email: [email protected]; or Credit Suisse Securities (USA) LLC, Attn: Prospectus Department, Eleven Madison Avenue, 3rd floor, New York, NY 10010, Telephone: 1-800-221-1037, Email: [email protected].

When available, to obtain a copy of the prospectus free of charge, visit the SEC's website, www.sec.gov, and search under the registrant's name, "Sunnova Energy International Inc."

A registration statement relating to these securities has been filed with the Securities and Exchange Commission but has not yet become effective. These securities may not be sold nor may offers to buy be accepted prior to the time the registration statement becomes effective. This press release shall not constitute an offer to sell or the solicitation of an offer to buy these securities, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

Sunnova | https://www.sunnova.com