A review by SUN DAY Campaign of data recently released by the U.S. Energy Information Administration (EIA) shows that despite Donald Trump signing the Republican-led Congress's anti-renewable energy bill in early July, solar power generation surged by over 30% that month, while wind power generation increased by nearly 14%.

Solar power generation reached a record high in July 2025 and the first seven months

The latest monthly EIA "Electricity Monthly Report" (data as of July 31, 2025) once again confirms that solar power is the fastest-growing source of electricity in the United States.

In July alone, utility-scale solar power (i.e., >1 megawatt) generation surged by over one-third (36.9%) compared to July 2024, while "estimated" small-scale (e.g., rooftop) photovoltaic solar generation increased by 12.7%. The combined growth reached 30.4%, accounting for nearly one-tenth (9.4%) of the country's total electricity generation that month, higher than the 7.5% recorded in the same period last year.

In addition, compared to the same period in 2024, utility-scale solar thermal and photovoltaic power generation increased by 37.4% in the first seven months of 2025, while small-scale systems saw a 11.0% rise. The combined output of utility-scale and small-scale solar grew by nearly one-third (29.9%), accounting for nearly 8.9% of U.S. total power generation from January to July (utility-scale: 6.7%; small-scale: 2.2%), up from 7.0% in the previous year.

Therefore, year-to-date (YTD) solar power generation has easily surpassed 54% of the national hydropower output (5.7%). In July alone, solar power generation more than doubled the national hydropower output. In fact, both in July and YTD, solar power generation has exceeded the combined output of hydropower, biomass, and geothermal energy.

In addition, utility-scale solar power generation surpassed wind power by 4% for the first time in July. When including small-scale systems, solar power generation exceeded wind power by over 35% that month.

Wind power has also performed strongly this July and from the beginning of the year to date:

In the first seven months of 2025, wind turbines across the United States generated nearly one-ninth (10.8%) of the country's electricity, a 3.5% increase compared to the same period last year, nearly twice the output of all hydroelectric power stations nationwide.

In July alone, wind power generation increased by 13.8% compared to the same period last year.

Wind and solar power account for nearly one-fifth of the total electricity generation in the United States, surpassing the share provided by coal or nuclear energy

In the first seven months of 2025, wind, utility-scale, and small-scale solar power accounted for nearly one-fifth (19.6%) of U.S. total electricity generation, up from 17.8% in the same period of 2024.

In addition, in the first seven months of this year, wind and solar power generation exceeded coal power by 19.1% and national nuclear power generation by 14.1%. In fact, with the rapid growth of solar and wind energy, nuclear power generation decreased by 1.0%.

So far this year, all renewable energy sources have generated nearly 27% of the total electricity production in the United States

From January to July this year, the electricity generation from all renewable sources (including wind, solar, hydropower, biomass, and geothermal energy) increased by 9.9% compared to the same period last year, accounting for 26.7% of the total U.S. electricity production, up from 25.1% twelve months ago.

The growth rate of all renewable energy power generation is three times that of the total U.S. power generation (9.9% vs. 3.3%). Currently, renewable energy accounts for the second-largest share in power generation, while natural gas power generation actually decreased by nearly 3.5% during the first seven months of 2025.

"Despite the inclusion of anti-renewable energy provisions in Trump's massive bill, solar and wind power continue to grow robustly," said Ken Bossong, executive director of the SUN DAY Campaign. "Meanwhile, the technologies favored by Republicans—nuclear and natural gas—have actually seen a decline in power generation so far this year."