California Independent System Operator annual report

California's 6 GW Battery Storage Becomes Top Power Source on Tuesday

Apr 19, 2024, 09:01 AM

California has experienced a rapid increase in its battery storage capacity, reaching a significant milestone on Tuesday night where battery storage became the largest source of power supply on the state's grid, serving the world's fifth biggest economy. This landmark event marks a pivotal shift in energy sources, with battery storage output now comparable to six nuclear reactors. The growth in battery capacity, which was described as moving from a 'rounding error' at the start of 2021 to 6 GW, underscores the state's quick adaptation to meet peak demand with sustainable solutions rather than traditional fossil fuels.