National Solar Capacity Ranking: 21st
Updated June 2026
Pennsylvania’s solar market remains relatively underdeveloped compared to neighboring states, but growing policy and industry momentum is building across all market segments. Key legislative priorities include HB2348, which would reform net metering by replacing avoided cost with a new grid value rate and expanding residential system sizes, and HB2264, which would establish virtual power plant programs. HB2429, which would require utilities to publish distribution system hosting capacity maps, is another important step toward improving grid transparency for solar development. On the regulatory front, key proceedings on interconnection and DER wholesale market participation are advancing, with major comment deadlines approaching this summer.
SEIA’s Major Solar and Storage Projects List is a database of all U.S. ground-mounted solar projects, 1 MW and above, that are either operating, under construction or under development.
3,198 MWdc
35 MWh
21st (18th in 2025 additions)
399,449 homes
1.41%
4,229
459 (112 Manufacturers, 217 Installers/Developers, 130 Others)
$7.8 billion
5,128 MW over the next 5 years (ranks 13th)
104,752
Energy storage deployment in Pennsylvania is in the early stages of development.
While there is growing interest in expanding storage, policy and regulatory uncertainty, particularly around ownership models and procurement structures, continues to slow market growth. The Public Utility Commission has taken a case-by-case approach, and the lack of standardized frameworks and incentives has limited large-scale deployment.
Despite these challenges, Pennsylvania’s broader energy market shows potential for growth, with increasing solar deployment and investment activity. Continued policy development and clearer market signals will be critical to unlocking a more competitive and scalable energy storage market in the state.