Diablo Solar Services has been a San Francisco Bay Area leader in solar energy systems for 29 years. We offer industry leading Fafco solar pool heating systems to heat even the largest pools. Solar heating for your pool is free and can extend your swim season up to seven months. We also provide solar pv electric panels for electricity production. Our solar photovoltaic panels, like our solar heating systems for pools, utilize leading edge technologies so you get the most out of every photovoltaic cell. With a solar energy system from Diablo Solar, you can sell excess solar power back to your utility company and lower your PG&E bill!