Sunrun is America's leading residential solar and battery storage provider, serving nearly 800,000 customers across the United States with 5.7 gigawatts of deployed clean energy capacity. Founded in 2007, the company addresses a fundamental barrier to solar adoption: upfront costs. It pioneered a solar-as-a-service model allowing homeowners to install systems with little to no money down, paying instead for the energy produced.
The company operates across residential solar photovoltaic systems, home battery energy storage, and distributed energy resources. Its home battery systems provide backup power during outages and can support grid operations during peak demand periods. Sunrun maintains vertical integration across the customer journey, controlling installation, maintenance, and long-term operations in-house. The company expanded its market position significantly with the 2020 acquisition of Vivint Solar for $3.2 billion.
Sunrun's business model rests on financing innovation and operational scale. By removing upfront capital requirements, the company transformed solar from a luxury purchase into an accessible service for residential customers. The combination of hardware deployment, energy services, and grid-support capabilities positions the company within the emerging landscape of distributed energy resources, where individual homes function as decentralized power generation and storage assets.
