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World’s Biggest Battery Project Comes to Power-Hungry California

  • LS Power’s 230-megawatt project commissioned near San Diego
  • Lack of energy storage has strained power grid amid heatwave
Biggest U.S. Battery System Connects To California's Grid

Photographer: Bing Guan/Bloomberg


The world’s biggest battery-storage system is now in operation in California.

The 230-megawatt project in San Diego county is significantly bigger than a Tesla Inc. system in Australia. It’s expected to expand to 250 megawatts by the end of the month, according to developer LS Power.