Black Walnut Energy Storage is a cutting-edge battery energy storage project located in Santa Paula, California, operating under the California Independent System Operator (CAISO) power control area. With a capacity of 15 MW, this facility is designed to enhance grid reliability and support renewable energy integration. The project is managed by esVolta, which also holds ownership of the facility. As an unregulated project, Black Walnut Energy Storage is positioned to contribute significantly to the energy landscape, with an expected online date set for 2025. The primary technology employed is advanced battery systems, utilizing energy storage as its main fuel source, thereby promoting sustainability and efficiency in energy management.