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Solar generation in CAISO surpassed natural gas in the first five months of 2026

Utility-scale solar generation exceeded natural gas output in the California Independent System Operator during the first five months of 2026. Multiple reports confirm this shift in the energy mix. Solar growth and battery storage are displacing gas-fired generation.

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What changed

New sources confirm the shift specifically involved utility-scale solar generation.

Live updates

  1. Utility-scale solar generation outpaced natural gas in CAISO

    Utility-scale solar generation exceeded natural gas output in the California Independent System Operator during the first five months of 2026. Multiple reports confirm this shift in the energy mix. Solar growth and battery storage are displacing gas-fired generation.

    What's confirmed:

    • Utility-scale solar generation in CAISO surpassed natural gas generation during the first five months of 2026.
    confidence 100%

  2. Utility-scale solar generation exceeds natural gas in CAISO

    Solar electricity generation in the California Independent System Operator surpassed natural gas during the first five months of 2026. Solar output rose 21% compared to the same period in 2024. Natural gas generation fell by 60% over that same timeframe.

    What's confirmed:

    • Utility-scale solar generation in CAISO surpassed natural gas generation in the first five months of 2026.
    • Solar electricity generation in CAISO increased 21% over the first five months of 2026 compared to the same period in 2024.
    • Natural gas generation in CAISO decreased by 60% compared to the same period in 2024.
    confidence 100%

  3. Solar Power Outpaces Natural Gas in CAISO Grid Through May 2026

    Utility-scale solar generation exceeded natural gas in California for the first five months of 2026. Solar output grew by 21% compared to the previous year. This trend coincides with an increase in battery storage.

    What's confirmed:

    • Utility-scale solar generated more electricity than natural gas on 82% of days in 2026.
    • Solar power surpassed natural gas in the California grid during the first five months of 2026.

    Still unconfirmed:

    • Solar electricity increased by 21% from last year.
    confidence 90%

  4. Utility-scale solar generation surpasses natural gas in CAISO

    Solar power became the primary energy source for CAISO during the first five months of 2026. Utility-scale solar outperformed natural gas on 82% of days during this period. This shift follows a surge in solar panel installations and battery storage.

    What's confirmed:

    • Utility-scale solar generation in CAISO surpassed natural gas in the first five months of 2026.
    • Natural gas generation in California decreased by 60% compared to the same period in 2024.
    • Solar electricity generation in CAISO increased 21% over the first five months of 2026 compared to the same period in 2024.
    • Utility-scale solar generated more electricity than natural gas on 82% of days in the first five months of 2026.
    • Solar reached 100% of total demand during some hours on 143 of the first 168 days of the year.

    Still unconfirmed:

    • The solar industry is growing despite efforts from the Trump administration to thwart renewable energy use.
    • A wind project in New Mexico is now delivering electricity to Arizona and California.
    confidence 100%