Infrastructure company LS Power is to switch on what is thought to be the world’s largest single-site battery project at 250MW before the end of the month.

The Gateway Energy Storage project, located in San Diego, California, currently has a capacity of 230MW, but is on track to stand at 250MW by the end of the month.

Try Premium for just $1

Full premium access for the first month at only $1
Converts to an annual rate after 30 days unless cancelled
Cancel anytime during the trial period

Start $1 Trial

Premium Benefits

Expert industry analysis and interviews
Digital access to PV Tech Power journal
Exclusive event discounts

Or get the full Premium subscription right away

Get Premium Subscription

Or continue reading this article for free

Get Basic (FREE) Subscription

The announcement comes amidst a raft of activity in California’s battery storage space. Asset management group Capital Dynamics and independent power producer Tenaska confirmed themselves to be collaborating on a 2GW battery pipeline in the state just yesterday, while hundreds of megawatts of energy storage projects have also been contracted for in recent months.

Greater emphasis has too been placed on energy storage in California this week as the state is currently in the throes of a significant heatwave which has placed great strain on the state’s power supply.

California’s Independent System Operator has issued numerous warnings of rolling blackouts this week as a result, while industry representatives have repeatedly refuted suggestions renewables and energy storage facilities are to blame for the strain on the grid, instead stating that greater proliferation of the two stood to solve such issues.

For more information on this story, visit our sister title Energy-Storage.news.

Additional reporting by Andy Colthorpe.

UPCOMING EVENT

PV CellTech USA 2025

7 October 2025

San Francisco Bay Area, USA

PV Tech has been running an annual PV CellTech Conference since 2016. PV CellTech USA, on 7-8 October 2025 is our third PV CellTech conference dedicated to the U.S. manufacturing sector. The events in 2023 and 2024 were a sell out success and 2025 will once again gather the key stakeholders from PV manufacturing, equipment/materials, policy-making and strategy, capital equipment investment and all interested downstream channels and third-party entities. The goal is simple: to map out PV manufacturing in the U.S. out to 2030 and beyond.

UPCOMING EVENT

Solar & Storage Finance USA 2025

21 October 2025

New York, USA

Returning for its 12th edition, Solar and Storage Finance USA Summit remains the annual event where decision-makers at the forefront of solar and storage projects across the United States and capital converge. Featuring the most active solar and storage transactors, join us for a packed two-days of deal-making, learning and networking.

UPCOMING EVENT

PV ModuleTech USA 2026

16 June 2026

Napa, USA

PV Tech has been running PV ModuleTech Conferences since 2017. PV ModuleTech USA, on 16-17 June 2026, will be our fifth PV ModulelTech conference dedicated to the U.S. utility scale solar sector. The event will gather the key stakeholders from solar developers, solar asset owners and investors, PV manufacturing, policy-making and and all interested downstream channels and third-party entities. The goal is simple: to map out the PV module supply channels to the U.S. out to 2027 and beyond.