The Moss Landing battery storage project is a massive battery energy storage facility built at the retired Moss Landing power plant site in California, US. At 400MW/1,600MWh capacity, it is currently the world’s biggest battery storage facility.
Vistra Energy, an integrated retail electricity and power generation company based in Texas, US, developed the project in two phases under two separate resource adequacy agreements with Pacific Gas and Electric Company (PG&E).
The 300MW/1,200MWh phase one of the Moss Landing
battery energy storage system (BESS) was connected to California’s power grid and began operating in December 2020. Construction on the 100MW/400MWh phase two expansion was started in September 2020, while its commissioning took place in July 2021.