California's battery energy storage resources now exceed 21,000 megawatts, according to the California Energy Commission.
The state's fleet reached 21,112 megawatts, up from less than 700 megawatts in 2019.
In the first half of 2026, Californians used more solar power than natural gas for the first time. Compared with the first half of 2024, solar use rose 22 percent while natural gas use fell 51 percent.
The milestone shows how quickly large-scale batteries have moved from a new technology to an important part of the state's electric grid.
