Sunrun is the nation's leading provider of residential solar and storage services, pioneering the solar-as-a-service model to eliminate upfront customer costs while generating recurring revenue through long-term leases and power purchase agreements. The company designs, installs, and maintains residential energy systems across the United States, offering solar panels and battery storage with fixed pricing typically below utility rates, along with system monitoring, maintenance, and insurance. Sunrun reaches customers through direct-to-consumer channels, partnerships with integrators and installation contractors, and collaborations with retailers and new market entrants, capturing long-term cash flows through customer contracts that typically span 20–25 years while financing installations through tax equity and non-recourse debt structures.