An assessment by the Sun Day campaign of data released by the Federal Energy Regulatory Commission (FERC) reveals that the combination of solar and wind was good for 90% of the new American electric -generating capacity that was added in the first seven months of 2025. In July, SOLAR only offered 96% of the new capacity, so that it kept the 23rd Conscte month in the course of the 23rd sequence of the 23rd consecutive Conscutive month.
Credit: Alliant Energy
In its last monthly “Update for energy -infrastructure“Report (with data up to and including 31 July 2025), says Ferc that 46” units “of Zonne -in total 1,181 GW were taken into use in July, accounting for more than 96.4% of all new generating capacity that was added during the month.
The new facilities include the 202.8-MW Estse Solar & Storage Expansion Project in Delta County, Texas; the 200 MW Eland Solar Farm and the 150.0 MW Northern Orchard Solar PV Project, both in core County, California; and the 150.0-MW Solar project of Coldwater River in Branch County, Michigan.
The 434 Solar scale units added to a scales utility during the first seven months of 2025 a total of 16.05-GW and were almost three-quarters (74.4%) of the total new capacity that was used by all sources.
Solar is now the largest source of new generating capacity that has been added every month for twenty-two consecutive months: September 2023 to July 2025. During that period the total solar capacity on utility scale grew from 91.82 GW to 153.09 GW. No other energy source has added anything near that amount of new capacity. Wind, for example, expanded with 10.68 GW, while the natural gas increased by only 3.74 GW.
For the first seven months of 2025, the combination of solar and wind (plus 4 MW hydropower and 3 mw biomass) was 89.6% of the new capacity, while natural gas supplied only 10.2%; The balance came from coal (18 MW), oil (17 MW) and waste heat (17 MW).
Solar + Wind is almost a quarter of the American -generating capacity in the field of utility programs
The share of solar scale at the level of the total installed capacity of (11.42%) is now almost the same as that of wind (11.81%). All in all, they are almost a fourth (23.23%) of the total available Utility-Scale-generating capacity of the US. At least 25% of the American solar capacity is in the form of small -scale systems that are not reflected in Ferc’s data.
With the absorption of hydropower (7.61%), biomass (1.07%) and geothermal (0.31%), renewable energy sources currently claim a share of 32.22%of the total generating capacity on the American utility scale. If small -scale solar capacity is included, renewable energy sources are now more than a third of the total American -generating capacity.
Zonnee stays on the right track to become the second largest source of generating capacity
Ferc reported that between August 2025 and July 2028 there is a “high probability” addition of 92,631 GW of solar energy, compared to the predicted 22,528-GW of new capacity. Combined with other expected additions to renewable energy, a total of 115.12 GW new capacity could be added to the schedule during the rest of the term of office of President Donald Trump.
“With a month of Trump’s ‘One Big Beautiful Bill’ now under our belts, renewable energy sources Capacity can continue to dominate additions,” said Ken Boss Bossong, executive director of the Sun Day campaign. “And solar energy seems ready to give its lead in the coming months and years.”
News item from the Sun Day campaign
