California close to 6GW online BESS milestone

California close to 6GW online BESS milestone

California close to 6GW online BESS milestone 526 413 Energy Storage Journal

July 13, 2023: California now has nearly 6GW of battery storage capacity online, the California Independent System Operator (CAISO) revealed on July 11.

CAISO president and CEO Elliot Mainzer said total BESS capacity on the grid increased to 5.6GW as of July 1.

“Just three years ago, we had about 500MW on the grid and this rapid growth of energy storage in California has significantly improved our ability to manage through challenging grid conditions,” Mainzer said.

He said it was essential for the state to continue to invest in innovative technologies such as energy story in the face of more frequent climate extremes including record heatwaves and droughts.

CAISO says 1MW of electricity provides roughly enough power to meet the demand of 750 homes, while 5,000MW can provide enough electricity to power around 3.8 million homes for up to four hours before the batteries need to be recharged.

The battery systems are increasingly being paired with new or existing solar resources at the same location because such facilities can provide greater operational efficiency and flexibility, the operator says.