ACP Q1 2026 Report: 6.4 GW New U.S. Clean Power Deployed — Solar Surpasses Wind as Largest U.S. Clean Source

The American Clean Power Association released its Q1 2026 State of Clean Power report on June 3, 2026, showing that developers deployed 6.4 GW of utility-scale solar, wind, and battery storage capacity in Q1 2026 alone. Utility-scale solar led with 3.625 GW added, followed by battery storage with 2.382 GW — its highest-ever quarterly addition — and wind with 415 MW. Total U.S. installed clean power capacity has now surpassed 370 GW, enough to supply nearly 80 million American homes. A landmark milestone was confirmed: utility-scale solar capacity has now surpassed wind as the single largest source of clean electricity by installed capacity in the United States — a reversal from just five years ago. The project pipeline for future clean energy also surged: total planned projects grew 6% year-over-year to over 195 GW, with the solar pipeline up 13% and battery storage pipeline up 8%. Despite policy headwinds from the One Big Beautiful Bill Act's partial IRA rollbacks, developers cited resilient demand from AI data centers, corporate clean energy procurement, and grid reliability mandates as primary drivers.