Sunrun is the largest residential solar, battery storage, and energy services company in the United States, founded in 2007 by Lynn Jurich and Ed Fenster. Headquartered in San Francisco, California, the company pioneered the residential solar-as-a-service model, allowing homeowners to go solar with little or no upfront cost through solar leases and power purchase agreements. Sunrun designs, installs, monitors, and maintains residential solar energy systems and battery storage solutions, serving hundreds of thousands of customers across more than 20 states, the District of Columbia, and Puerto Rico. The company offers multiple pathways to solar adoption including direct purchase, monthly lease, and PPA options, making clean energy accessible to a broader range of homeowners. In 2020, Sunrun acquired Vivint Solar in a landmark deal that consolidated its position as the dominant residential solar provider in the country. Sunrun's Brightbox battery storage system, powered by Tesla Powerwall and other battery technologies, enables homeowners to store solar energy for use during peak demand periods and power outages. The company has also developed virtual power plant programs in partnership with utilities, aggregating its fleet of residential solar and battery systems to provide grid services and reduce the need for fossil fuel peaker plants. Sunrun trades on the NASDAQ stock exchange and employs thousands of solar installation professionals. The company continues to expand its geographic reach and product offerings, integrating smart energy management, electric vehicle charging, and grid services into its residential energy platform.
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