A1 SUN

A1 Sun is family owned and managed. Larry Giustino began working in solar more than 50 years ago, and has been a part of every major evolution in the technology. Our team of knowledgeable installers and design professionals come from within our local community. Our community is our customer base. We are proud to have installed more than 5,000 Megawatts of renewable power in the Bay Area (and counting!)... A1 Sun is located in Berkeley. We serve the surrounding counties of Alameda, Contra Costa, Marin and beyond... It's been almost a year since we had this excellent company add 14 panels on our roof. We are a retired couple with a 2700 sq ft home. For our use according to PGE we needed fewer than 14 panels, but since I felt very confident in this company's integrity and workmanship, I requested additional panels that would serve a larger family when we sold this house. The panels work well as far as I can tell. No issues. The company was very efficient. They definitely knew what they..

Also known as: A1 Sun Inc.

Primary location: Berkeley United States