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Solar and Storage Dominate Q3 U.S. Power Additions as Solar Hits 11.7 GW

Most new capacity is concentrated in Trump-won states, signaling a fast-shifting regional buildout.

Overview

  • The American Clean Power Association reports 11.7 GW of clean capacity added in Q3 2025, with utility-scale solar at 6 GW and batteries at 4.7 GW for 91% of additions.
  • Operational battery storage surpassed 40 GW after 50 projects came online, including Enel's 359 MW GulfStar Storage in Texas.
  • The clean-power pipeline reached about 186 GW, with solar and storage driving 90% of its growth over the last year.
  • SEIA and Wood Mackenzie say Q3 solar installs totaled 11.7 GW, pushing 2025 above 30 GW, with 73% of this year's capacity in states carried by President Trump and Utah entering the top ten.
  • Industry groups warn that a July Interior Department memo and related federal actions are creating permitting uncertainty even as U.S. manufacturing expands with new module plants and Corning's wafer and ingot facility.