US renewables clear 30% of electricity as solar overtakes coal

Federal data shows renewables at 30.3% of US electricity through May 2026, with wind and solar together beating both coal and nuclear.

Electric Power Monthly data from the US EIA, running through May 31, 2026 and reviewed by the SUN DAY Campaign, shows renewables supplied 30.3% of total US electricity in the year's first five months, up from 28.2% a year earlier. Overall renewable generation rose 10.1%. Utility-scale solar led with a 21.6% jump, while coal generation fell 10.9%.

Wind and solar together provided more than 22.2% of US electricity, producing 57% more than coal and 26% more than nuclear. In May 2026, solar output alone exceeded both coal and wind. The buildout continues: nearly 45,000 MW of renewable capacity was added between June 2025 and May 2026, alongside 16,552 MW of new utility-scale battery storage.

The abundance case is straightforward. Solar and wind carry near-zero fuel costs, and as they replace coal, the marginal cost of electricity trends down while supply grows. The EIA projects fossil capacity to shrink by about 4,685 MW and no new nuclear in the coming year, with solar, wind, and storage set to add roughly 83 GW by May 2027.

Some caution is warranted on the framing. The SUN DAY Campaign is an advocacy group, and several forward projections and the small-scale solar growth assumption are theirs, not the EIA's. Capacity figures are summer ratings, not actual output, and capacity factors differ widely: nuclear runs at 91% while utility solar sits near 24%, so share of installed capacity overstates share of delivered energy.

Source: CleanTechnica