Arlington Battery Storage is a state-of-the-art energy storage project located in Tonopah, Arizona, with a capacity of 50 megawatts (MW). Operated and owned by First Solar, this facility utilizes advanced battery technology to provide efficient energy storage solutions. As an unregulated project, Arlington Battery Storage operates within the Arizona Public Service Company’s power control area, contributing to the region’s energy reliability and sustainability. The project is designed to enhance grid stability and support renewable energy integration, although it does not have a specified expected online year.