New data shared by the Californian government shows that the state has supplied 100 percent of its electricity demand with clean energy sources for an average of seven hours a day so far this year.

More than nine out of 10 days in 2025 saw the state’s power being run on completely clean energy sources for an extended period of time in the day—representing a 750 percent increase in clean energy days since 2022.

California Energy Commission Chair David Hochschild told Newsweek, “This is a major milestone in California’s progress toward a 100 percent clean energy future.”

“The notion that the world’s fourth largest economy could get to this point at all—with two-thirds of our electricity coming from clean sources like solar and wind—was considered mythology even 10 years ago,” he added.