Clean Power Quarterly Market Report Q3 2025 (Public)

The U.S. clean energy industry posted record Q3 installations, but forward indicators show growing caution, according to ACP’s Q3 2025 report. Developers added 11.7 GW of new utility-scale solar, wind, and battery storage capacity — a 14% increase over Q3 2024, making it the strongest third quarter on record. Battery storage alone set a new Q3 high with 4.7 GW installed, keeping 2025 firmly on pace to surpass 2024 as the biggest clean power deployment year in history. 

 At the same time, leading indicators point to emerging headwinds. Power purchase agreements (PPAs) fell 31% year-over-year, pushing the year-to-date total for all offtake types 38% below the same point last year. Looking further ahead, the policy and regulatory environment has changed. Projects are facing heightened regulatory burdens and policy uncertainty, putting the future trajectory of clean power project deployments at risk. 

Key Highlights

• Total Clean Power Capacity Installed: Strongest Q3 on record. Total clean power capacity installed in Q3 2025 at 11,695 MW represents a 14% increase YOY. Of that capacity, land-based wind increased 131% over Q3 2024. 

• Pipeline Hits All-time High but Growth Stalls: The clean power pipeline reached a new high of 186,185 MW by the end of September, growing 9% YOY. However, the pipeline expanded a mere 1% from the first quarter of 2025.  

• 2025 On Pace for Biggest Year Ever: Year to date, 30.9 GW of clean energy power generation has been connected to the grid, up 1 GW from the current top year (2024) for clean energy installation, putting 2025 on track to be the strongest year on record.  

• Offtake Agreements in Decline: Clean energy offtake announcements during the first three quarters of 2025 were down 38%, compared to the same period in 2024. 

• States Set to Double Clean Energy Portfolios: Eleven states have enough capacity in their pipelines to more than double their operational portfolios: Alabama, Arizona, Delaware, Kentucky, Maryland, Massachusetts, Michigan, New Jersey, New York, Tennessee and Virginia.  

• Offshore Wind Faces Challenges: No capacity changes during Q3, but moving into the fourth quarter, the offshore wind pipeline will decline, after Invenergy submitted a petition to cancel its OREC agreement with the New Jersey Board of Public Utilities for Leading Light Wind (2,400 MW).  

Read the Press Release: Q3 Market Report Shows Strong Quarter of Deployment, but Signs Point to Long-Term Slowdown Risk

The complete Q3 report is also available to ACP Members.