United States adds nearly 12 Gigawatts of solar capacity in Q3

Published on December 10, 2025 by Liz Carey

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According to a new report, the U.S. solar industry installed nearly 12 GW of new capacity in the third quarter of 2025, the third-largest quarter on record.

The U.S. Solar Market Insight Q4 2025 Report from Solar Energy Industries Association (SEIA) and Wood Mackenzie, solar and storage account for more than three quarters (85 percent) of all new power added to the grid in the first nine month of President Donald Trump’s administration, despite actions in Washington D.C. to target clean energy. Additionally, the report found, 73 percent of all solar capacity installed this year has been built in states won by Trump, including eight of the top 10 states for new installations: Texas, Indiana, Florida, Arizona, Ohio, Utah, Kentucky and Arkansas.

“This record-setting quarter for solar deployment shows that the market is continuing to turn to solar to meet rising demand,” SEIA president and CEO Abigail Ross Hopper said. “Remarkable growth in Texas, Indiana, Utah, and other states won by President Trump shows just how decisively the market is moving toward solar. But unless this administration reverses course, the future of clean, affordable, and reliable solar and storage will be frozen by uncertainty and Americans will continue to see their energy bills go up. America’s manufacturing surge, our global competitiveness, and billions of dollars in private investment are on the line.”

Officials said the opening of two new solar module manufacturing facilities in Louisiana and South Carolina totaling 4.7 GW means the country has added 17.7 GW of new module manufacturing capacity.

“We expect 250 gigawatts of solar to be installed from 2025 – 2030. But the US solar industry has more potential,” Michelle Davis, head of solar research at Wood Mackenzie and lead author of the report said. “Wood Mackenzie is tracking substantial increases in power demand across the nation. The solar industry would be well positioned to meet more of this new demand if existing constraints were alleviated, presenting upside to our forecast.”