SunPower Corporation

SunPower Corporation is a leading American provider of photovoltaic solar energy generation systems and battery energy storage products, primarily serving residential customers across the United States and Canada. Founded in 1985 by Stanford professor Richard Swanson, SunPower has been headquartered in San Jose/Silicon Valley since its inception. Renowned for its innovation—holding over 1,000 patents—the company pioneered high-efficiency Maxeon® solar cells and comprehensive all-in-one solutions like the Equinox™ system. SunPower’s offerings include custom-designed rooftop solar installations with integrated monitoring software as well as advanced home battery storage through its SunVault™ product line.
Historically recognized for both residential and commercial/utility-scale projects, SunPower spun off its manufacturing division into Maxeon Solar Technologies in 2020 to focus on U.S.-based residential markets. The company emphasizes sustainability with industry-leading warranties up to 25 years on panels. Despite recent financial restructuring—including a Chapter 11 bankruptcy filing in August 2024—SunPower remains an influential name synonymous with quality engineering, customer service excellence, and ongoing contributions to clean energy adoption nationwide.