The American Clean Power Association (ACP) reported that US developers installed more than 11 GW of new solar, wind, and storage capacity in Q2 2025, lifting total operating clean power to over 332 GW. Growth was less than 1% compared with Q2 2024, and the project pipeline barely expanded, increasing by only 100 MW to 184.5 GW.
Wind showed the steepest decline. Announcements of wind power purchase agreements (PPAs) dropped 93% between Q1 and Q2. Overall, 32% less capacity was contracted in the first half of 2025 compared with the same period in 2024, reflecting weakened confidence in long-term wind investments. Illinois was the only top-ten state for new capacity in Q2 where additions were primarily wind, while other leading states such as Texas, Indiana, and Michigan relied mostly on solar.
Construction activity remained strong, with 83.4 GW under way across 580 projects at mid-2025. Texas led with 21 GW under construction, followed by Arizona (7.8 GW), California (7.2 GW), New Mexico (4.8 GW), and Wyoming (4.1 GW).
Corporate PPA prices rose by 6% quarter-on-quarter and 8% year-on-year, adding to pressure on buyers and developers. ACP attributed the slowdown in procurement to uncertainty created by federal policy changes, shifting trade rules, and pending tax credit guidance.
