An Oregon-headquartered developer and operator of utility-scale battery energy storage systems said it has acquired a major project in Arizona that will serve customers of Arizona Public Service (APS). GridStor on September 18 announced the acquisition of the 100-MW/400-MWh White Tank battery storage project from Strata Clean Energy, a solar power and energy storage developer based in Durham, North Carolina. Strata, also an independent power producer, has more than 300 projects in its portfolio, including ...