Solar electrical generation in the United States is setting records, according to the U.S. Energy Information Administration (EIA).
The EIA's latest "Electric Power Monthly" report shows that utility-scale solar generation increased nearly 30% from August 2024 to August 2025, while rooftop solar increased 10.8%.
Combined, solar sources provided 9.5% of the nation's electrical output in August, up from 7.6% one year ago.
A review of the EIA data by the SUN DAY Campaign found that solar-generated electricity surpassed hydropower plants' output by over 58% year-to-date.
In August alone, solar-generated electricity more than doubled the output of the nation's hydropower plants.
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Author's summary: Solar energy becomes top renewable electricity source in US.