The latest Solar Market Insight report from SEIA and Wood Mackenzie reveals a massive 61% jump in the year-over-year volume of utility-scale solar installations during the second quarter, but permitting issues and the looming tax credit cliff are expected to keep growth flat.
The U.S. solar industry installed 19.2 GW of PV capacity in the first half of 2026, according to the latest US Solar Market Insight report from the Solar Energy Industries Association (SEIA) and Wood Mackenzie. This compares with around 18.7 GW deployed in the same period of 2025.
The new additions brought the country’s cumulative installed solar PV capacity to approximately 298 GW at the end of the first half of 2026.
In the second quarter alone, the United States added 11.4 GW of solar capacity, up 45% from the same quarter a year earlier.
Texas again led total capacity additions, with 3.44 GW, followed by Arizona at 1.76 GW and Florida with 1.61 GW.
