Baltimore-based Constellation Energy Projects & Services Group recently signed an agreement with General Motors Corp. to construct a solar power system that will generate approximately 870kW of power and supply nearly half of the power requirements at GM’s 300,000-square-foot service and parts operations warehouse in Fontana, Calif. Constellation Energy will own and operate the rooftop system and provide power to the GM facility under a 25-year power purchase agreement.

The photovoltaic solar installation will feature 6,400 Unisolar panels.