State Overview

Maine

National Solar Capacity Ranking: 32nd

National Energy Storage Capacity Ranking: 22nd

Updated June 2026

 

Maine State Solar Overview

 

 

Maine Major Solar and Storage Projects

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.
 

Just The Facts

  • Solar Installed (MW):

    1,952 MWdc

  • Storage Capacity

    452 MWh

  • National Ranking:

    32nd (38th in 2025 additions)

  • Enough Solar Installed to Power:

    367,595 homes

  • Percentage of State's Electricity from Solar:

    17.79%

  • Solar Jobs:

    722

  • Solar Companies in State:

    56 (3 Manufacturers, 29 Installers/Developers, 24 Others)

  • Total Solar Investment in State:

    $3.2 billion

  • Growth Projection and Ranking:

    895 MW over the next 5 years (ranks 42nd)

  • Number of Installations:

    17,920

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Maine State Solar Policy Resources

Maine Energy Storage Policy and Market Overview

Maine has an emerging energy storage market supported by strong solar growth and increasing deployment of battery systems.

While the market continues to develop, ongoing solar deployment and supportive policy efforts are expected to drive additional storage growth. Energy storage is playing an increasing role in enhancing grid flexibility and supporting Maine’s transition to a cleaner energy system.
 

 

Maine Energy Storage Policy Resources

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