By Martin McConnell June 18, 2026 Aypa Power and the Salt River Project (SRP) nonprofit say their Pediment battery energy storage system (BESS) unit has reached energization in Arizona. Located in Mesa’s Elliot Road Technology Corridor, the 250 MW / 1 GWh BESS system is one of the largest in the Grand Canyon State. The [...] The post SRP, Aypa Power energize 1 GWh battery in Arizona appeared first on Power Wattz Solar | Off Grid Solar Solutions | Battery Backups .