Jason Meyer sets up solar power at his campsite at Canyon Moon Ranch for the upcoming music festival, Country Thunder 2025 on April 9, 2025, in Florence, Ariz. Festivalgoers arrive early to set up for the festival, which begins the following day.
Sacramento, California – California reached a historic benchmark in 2023, with two-thirds of its electricity generated from clean and zero-carbon sources—a first for the world’s fourth-largest economy. New data from the California Energy Commission shows 67% of the state’s retail electricity came from solar, wind, hydroelectric, nuclear, and other renewables last year, up from 61% in 2022 and just 41% a decade ago.
The achievement caps a streak of rapid infrastructure growth. In 2024 alone, California added 7,000 megawatts of clean capacity to the grid—the largest single-year increase in state history. The pace has been relentless: since 2019, 25,000 megawatts have come online, the majority from solar and battery storage. And with 100% clean energy powering the grid for part of the day on more than 90% of days this year, California appears to be proving that clean energy isn’t just aspirational—it’s operational.
But the news arrives under a cloud of uncertainty. California has recently lost hundreds of millions of dollars in federal tax credits and energy-related incentives due to policy shifts and funding freezes from the Trump administration. As federal support recedes, questions loom about whether California’s aggressive clean energy build-out can be sustained without it.
Governor Gavin Newsom framed the achievement as a defiant counterpoint to federal stagnation. “While the federal government turns its back on innovation and common sense,” he said in a statement, “California is proving that clean energy is not only possible—it’s the backbone of our economy.”
The numbers are striking: greenhouse gas emissions in California have fallen 20% since 2000, while the state’s GDP has surged 78%. The power sector alone has halved its emissions since 2009. California now leads the nation in green jobs, with over 500,000 clean energy positions—seven times the number of fossil fuel jobs. Solar alone accounts for over 21,000 megawatts of grid-tied capacity, with another 19,000 behind-the-meter.
Battery storage, once a footnote in clean energy planning, has grown by 1,944% since Newsom took office in 2019. The state’s 15,000-megawatt storage fleet helps shift solar power into the evening and stabilize demand.
Still, without federal incentives and with regulatory uncertainty increasing under Trump’s return to power, California’s clean energy roadmap—calling for 148,000 megawatts of new clean capacity by 2045—may be more difficult to realize. Already, state officials are adjusting financial strategies to compensate for lost federal support, even as utilities and regional energy providers continue to bring resources online.
The broader tension remains unresolved: Can a single state, no matter how large or ambitious, carry the weight of a national clean energy transformation on its own? California’s progress is real—but its isolation may prove just as historic.
