Sunnova Energy International Inc. engages in the provision of energy as a service in the United States. The company offers electricity, as well as offers operations and maintenance, monitoring, repairs and replacements, equipment upgrades, on-site power optimization, and solar energy system and energy storage system diagnostics services. As of December 31, 2023, it operated a fleet of residential solar energy systems with a generation capacity of approximately 2,292 megawatts serving over 419,000 customers. The company was incorporated in 2012 and is headquartered in Houston, Texas.