Sunnova Announces Change to a Virtual Meeting Format for 2020 Annual Meeting of Stockholders

Sunnova Energy International Inc. ("the Company”) (NYSE: NOVA) announced today that the 2020 Annual Meeting of Stockholders (the "Annual Meeting”) will be held virtually due to the public health impact of the novel coronavirus outbreak (COVID-19) and to support the health and well-being of the Company’s management and stockholders.

The Annual Meeting will be held on Wednesday, May 20, 2020 at 9:00 A.M., Houston Time in a virtual format only. As described in the proxy materials for the Annual Meeting previously distributed, stockholders as of the close of business on March 23, 2020, the record date, are entitled to participate in the Annual Meeting. In order to attend the Annual Meeting, stockholders must register in advance at www.proxydocs.com/NOVA prior to the deadline of May 15, 2020 at 5:00 p.m., Eastern Time. During the registration process, stockholders will be able to submit questions and upon completion, will receive an email with a link to access the virtual meeting site and information regarding voting during the meeting. A notice regarding this change to a virtual meeting format (the "Notice”) is being filed with the Securities and Exchange Commission together with this press release. Additional information regarding the Annual Meeting, stockholder participation and voting is provided in the Notice.

About Sunnova

Sunnova Energy International Inc. (NYSE: NOVA) is a leading residential solar and energy storage service provider with customers across the U.S. states and its territories. Sunnova’s goal is to be the source of clean, affordable and reliable energy with a simple mission: to power energy independence so that homeowners have the freedom to live life uninterrupted^TM.

For more information, visit www.sunnova.com, follow us on Twitter @Sunnova_Solar and connect with us on Facebook.

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