A1 Sun, Inc. is a family-owned and operated business based in Berkeley, California, dedicated to providing high-quality solar and battery systems design and installation services for residential homeowners. Founded in 2007 by Larry and Kathleen Giustino, the company has deep roots in the solar industry, with Larry having started his journey over 50 years ago when he manufactured a photovoltaic cell as a young student. A1 Sun has established itself as a reliable partner for Bay Area homeowners, having installed over 5,000 Megawatts of renewable power to date.
The company prides itself on its commitment to the environment as a certified Green Business in Alameda County. Not only do they install top-tier solar power components, but they also practice sustainability through recycling and waste minimization strategies. A1 Sun emphasizes treating each home as if it were their own, ensuring that they deliver quality workmanship with a focus on durability. Their in-house crew is trained to provide personalized service, monitoring, and the critical integration of systems to maximize energy efficiency and savings for clients.
A1 Sun's services cover everything from technical design tailored to the homeowner's energy needs, to installation and interconnection with local utilities. They ensure their systems are prepared for any potential outages by integrating blackout preparedness features, allowing for seamless operation during emergencies. Additionally, the company's team offers ongoing support, including real-time data monitoring and performance tracking, ensuring systems operate at their peak efficiency.
With a strong emphasis on quality over quantity, A1 Sun remains dedicated to meeting the growing demand for renewable energy while fostering a sense of community and neighborly support throughout the Bay Area.
