U.S. Solar Capacity Surpasses 250 GW Milestone in 2025

The United States has crossed a major renewable energy milestone, with cumulative installed solar capacity surpassing 250 GW in 2025, according to data from the Solar Energy Industries Association (SEIA) and Wood Mackenzie.

So far this year, the country has added around 30 GW of new solar capacity, reflecting the continued acceleration of solar deployment across utility-scale, commercial, and residential segments. The latest additions have pushed total cumulative solar capacity beyond the 250 GWdc mark, highlighting the rapid growth of solar energy over the past decade.

Industry data shows that U.S. solar installations have risen sharply since 2015, with particularly strong growth observed after 2020, driven by falling technology costs, supportive federal and state policies, and increasing demand for clean and reliable energy.

SEIA and Wood Mackenzie noted that the milestone underscores solar power’s expanding role in the U.S. energy mix, positioning it as a key contributor to electricity generation and the country’s long-term decarbonisation and energy security goals.