SunPower to install and supply solar arrays for 3.7 MW Roof and Carport solar systems in Contra Costa County

Contra Costa County in California has selected SunPower to deploy a mix of Helix Roof and Carport solar systems at 10 locations totaling 3.7 megawatts, which is expected to offset approximately 68 percent grid electricity and save US$16.5 million in energy costs over 25 years. Three of those sites will also feature Helix Storage systems that reach a combined 1.5 megawatts (3,000 kilowatt hours) and deliver significant demand charge savings to Contra Costa County.

Solar-and-storage system design and implementation will take place over the next year. The County will buy energy produced by the project under a 25-year power purchase agreement and will own the renewable energy credits associated with the solar production which may have a monetary value in the future.