Sunrun Inc. is a leading provider of residential solar energy systems in the United States, offering a comprehensive suite of services including design, installation, maintenance, and sales of solar energy products like panels. Founded in 2007 and based in San Francisco, California, Sunrun has expanded its offerings to include battery storage solutions, catering primarily to homeowners. The company adopts a direct-to-consumer sales approach, leveraging online platforms, retail partnerships, and a variety of marketing channels to reach its customers, alongside a network of partners.