Solar Power World magazine listed it as the number two overall solar installation company in the U.S. In 2013, SolarCity was the leading residential solar installer in the U.S. Following the acquisitions, SolarCity expanded operations on the East Coast and opened in Connecticut, Pennsylvania, South Carolina, Florida, Vermont, and New Hampshire. In 2011, the company launched their expansion to the East Coast with the acquisition of the solar division of Clean Currents and groSolar. By 2009, solar panels it had installed were capable of generating 440 megawatts (MW) of power. SolarCity was founded in 2006 by brothers Peter and Lyndon Rive, based on a suggestion for a solar company concept by their cousin, Elon Musk, who was the chairman and helped start the company. SolarCity vehicle with current SolarCity logo at night SolarCity offered free charging to Tesla Roadster owners at its charging stations, SolarCity became one of the first installers of the Tesla Powerwall home energy storage battery, and Tesla CEO Elon Musk served as the chairman of SolarCity. Prior to its acquisition by Tesla, the two companies had a close relationship. The business model became the most popular in the US and made the company the largest residential solar installer, but it caused SolarCity to have over $1.5 billion in debt by the time of its acquisition in 2016 (equivalent to $1.7 billion in 2021). SolarCity heavily focused on door-to-door sales of leased systems, where customers would pay no upfront costs, but agreed to purchase the power generated by those panels from the company for 20 years. Tesla acquired SolarCity in 2016, at a cost of approximately US$2.6 billion (equivalent to $2.9 billion in 2021) and reorganized its solar business into Tesla Energy. The company was founded on July 4, 2006, by Peter and Lyndon Rive, the cousins of SpaceX and Tesla CEO Elon Musk. SolarCity Corporation was a publicly traded company headquartered in Fremont, California that sold and installed solar energy generation systems as well as other related products and services to residential, commercial, and industrial customers.

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