Sunnova Energy International Inc. is a residential solar and energy storage service provider to customers across the United States. The Company offers a residential solar dealer model in which it partners with local dealers who originate, design and install its customers' solar energy systems and energy storage systems on its behalf. The Company services include operations and maintenance, monitoring, repairs and replacements, equipment upgrades, onsite power optimization for the customer (for both supply and demand), the ability to switch power sources among the solar panel, grid and energy storage system, as appropriate, and diagnostics. It also offers ongoing energy services to customers who purchased their solar energy system through third parties. The Company serves commercial, industrial, agricultural, not-for-profit and public sector customers. It serves approximately 2,79,000 customers in more than 45 United States and territories.