Certain Common Stock of Sunnova Energy International Inc. are subject to a Lock-Up Agreement Ending on 31-JAN-2021. These Common Stock will be under lockup for 61 days starting from 1-DEC-2020 to 31-JAN-2021.

Details:
The directors and executive officers, the selling stockholder and affiliates of ECP, which are referred to as “lock-up parties,” have entered into lock-up agreements with the underwriters prior to the commencement of this offering pursuant to which each of these persons or entities, subject to certain limitations, for a period of 60 days after the date of this prospectus supplement, may not, without the prior written consent of the representatives, (1) 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, lend, or otherwise transfer or dispose of, directly or indirectly, any shares of common stock or any securities convertible into or exercisable or exchangeable for common stock (including, without limitation, common stock or such other securities which may be deemed to be beneficially owned by such lock-up parties in accordance with the rules and regulations of the SEC and securities which may be issued upon exercise of a stock option or warrant), which collectively are referred to as “lock-up securities,” or (2) enter into any swap or other agreement that transfers, in whole or in part, any of the economic consequences of ownership of the common stock or such other securities, whether any such transaction described in clause (1) or (2) above is to be settled by delivery of common stock or such other securities, in cash or otherwise, or (3) make any demand for or exercise any right with respect to the registration of any shares of common stock or any security convertible into or exercisable or exchangeable for common stock, or publicly disclose the intention to do any of the foregoing.