Solar PV System Design & Engineering, Battery Storage Integration & Turn-key Installation

"Custom and scalable solar systems on time, on budget, and to code."

Callahan Solar Services, founded in 2021 by William “Brent” Hilton, delivers tailored solar energy solutions built on more than 20 years of industry expertise. As a California-licensed solar contractor, Brent has designed megawatt-scale commercial solar farms for East Coast utility providers and now leads projects that focus on custom commercial and residential solar systems across Northern California. The company specializes in both grid-tied and off-grid installations with integrated battery storage, offering reliable and efficient renewable energy solutions while maintaining flexibility to support projects throughout California and beyond.

Our mission

Callahan Solar Services specializes in scalable solar installations, engineered with precision and executed with a culture of accountability to deliver solutions that perform and endure.