Maui County is projecting a savings on its electric bill of $10 million over the next 20 years from the installation of solar photovoltaic panels at 11 sites.

The PV systems have a combined generating capacity of 1.9 megawatts, or enough energy to serve the equivalent of about 400 homes using 600 kilowatt hours of electricity per month.

The sites include four fire stations, two senior centers, the Lahaina police station, the Eddie Tam Community Center and the Kihei Aquatic Center. Two wastewater treatment facilities house the largest number of panels installed, with 3,696 panels at the Kihei Wastewater Treatment Facility.

Bosch Solar Energy and its partners jointly developed, constructed, and financed the project with no upfront cost to the County. Bosch will own the systems and sell the power to Maui County at a fixed rate that is lower than the cost of electricity provided by Maui Electric Co.