Two government departments on Hawaii Island have announced plans to install rooftop solar panels to cut their electricity bills.

The larger of the two, a 48-kilowatt-system to be mounted on the roof of the Waimea Police Station, will generate an estimated 75,892 kilowatt hours of electricity a year and save about $25,000 a year in energy costs, according to Greenpath Technologies Inc., which will install the system.

A 34-kilowatt system to be installed on the Waimea Fire Station will generate an estimated 54,400 kilowatt hours of electricity a year and cut the station’s electricity bill by about $18,000 a year.

The projects are expected to be completed in the third quarter of this year.

Separately,  Surfing Goat Dairy on Maui has scheduled a ceremony July 29th to mark the completion of a 43-kilowatt photovoltaic system mounted on the company’s barn roof and over its parking area.