The biggest battery storage system in the U.S. connected to California’s electricity grid, giving the state more flexibility to bank excess solar power generated during the hottest parts of the day and deploy it later.
The California Independent System Operator, which manages a grid that powers powers 80% of California and a small portion of Nevada, added 62.5 megawatts to its storage capacity in June, when the initial phase of LS Power Group’s Gateway Energy Storage project came online in San Diego.
