Construction completed for Phase 2 of World's largest battery facility in USA

Vistra recently completed construction on Phase II of its Moss Landing Energy Storage Facility. The battery system is now storing power and releasing it to California's grid when it is needed. The 100-megawatt expansion brings the facility's total capacity to 400 megawatts/1,600 megawatt-hours, making it the largest of its kind in the world.

Utilizing technology from LG Energy Solution, Vistra's enormous lithium-ion battery system is co-located on the site of its existing Moss Landing Power Plant in Monterey County. Burns & McDonnell has provided engineering, procurement, and construction (EPC) expertise for the expansion.

Curt Morgan, chief executive officer at Vistra, said: "The particular site has the space to support even further expansion – up to 1,500 MW/6,000 MWh – while responsibly utilizing our existing site infrastructure, including existing transmission lines and grid interconnection. California leads the country in the transition away from fossil fuels and the Moss Landing Energy Storage Facility stands as a model for how batteries can support intermittent renewables to help create a reliable grid of the future."

The 100-MW/400-MWh Phase II expansion is operating under a 10-year resource adequacy agreement with Pacific Gas and Electric Company (PG&E). The 300-MW/1,200-MWh Phase I project has a similar 20-year resource adequacy agreement with PG&E.