Vivint Solar, founded in October 2011, specializes in residential solar energy solutions. Originally part of Vivint, a company focused on home automation and security, Vivint Solar became a standalone entity after The Blackstone Group acquired Vivint in 2012. By 2013, it had grown to be the second largest residential solar installer in the U.S., primarily using direct door-to-door sales.

The company offers solar panel installation and services designed to help homeowners reduce their reliance on traditional electricity sources. Their systems are integrated with smart home technology, allowing customers to monitor and optimize their energy usage. Vivint Solar's service plans often feature little to no upfront costs, making solar energy more accessible. In 2020, Vivint Solar was acquired by Sunrun, enhancing its offerings with home battery storage solutions and energy management services, and contributing to a combined customer base of over 500,000 households.