EIA Data: US to Add 83 GW of Clean Energy Capacity as Fossil Fuels Shrink

New federal figures show the United States power grid is undergoing a rapid transformation. According to the Energy Information Administration (EIA), renewable sources and battery storage are set to deliver roughly 82.7 gigawatts of fresh generating capacity over the next twelve months. At the same time, nuclear and fossil fuel capacity is expected to dip by more than 1.4 GW, marking a clear shift in the nation’s energy mix.

The latest “Electric Power Monthly” report, which tracks data through the end of July 2026, highlights how quickly clean energy is expanding. Renewable generation climbed 10.7% compared to the same period a year earlier, with utility-scale solar leading the way at 22% growth. Small-scale solar, hydropower, and wind also posted solid gains. Combined, wind and solar—including rooftop installations—now account for 21.6% of US electricity production, outpacing coal by 49% and nuclear by 26%.

Over the past 18 months, the buildout has been even more striking. Utility-scale solar capacity jumped 32.7% since early 2025, while battery storage doubled, adding over 26,600 MW. All renewables together, including hydro, biomass, and geothermal, grew by 14.6%. In total, clean energy and storage have expanded by more than 88,700 MW, while coal capacity shrank and nuclear barely budged. Natural gas saw a modest 1.5% increase.

Looking ahead to mid-2027, the EIA projects utility-scale solar will add another 43,558 MW, wind will contribute 9,481 MW, and battery storage will grow by 23,428 MW. Small-scale solar is expected to add roughly 6,000 MW based on recent trends. Meanwhile, no new nuclear capacity is forecast, and fossil fuel plants are set to retire a net 1,452 MW. As one industry observer noted, the data suggests the market is betting heavily on renewables—and those bets are paying off.