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. GridStor on Thursday noted that the acquisition, and plans to build more standalone battery storage in Arizona, come as the state experiences rapid demand growth. The White Tank project also has a battery supply agreement and long-term service agreement with e-STORAGE, a Tier 1 global provider of energy storage solutions. “Battery storage remains a highly scalable, cost-effective and near-term solution to powering rapidly growing energy capacity needs across the Southwest.