State Overview

Hawai'i

National Solar Capacity Ranking: 25th

National Energy Storage Capacity Ranking: 8th

Updated June 2026

 

Hawai’i State Solar Overview

Hawai’i is a leading solar market driven by strong resource potential and high electricity costs, resulting in widespread adoption across the state. Solar supplies nearly a quarter of the state’s electricity, with high levels of rooftop deployment and growing integration of energy storage. While continued growth is expected, the island grid structure and interconnection constraints remain ongoing challenges as solar penetration increases.
 

 

Hawai’i 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.
 

 

Official SEIA State Affiliate

HSEA

Just The Facts

  • Solar Capacity:

    2,313 MWdc

  • Storage Capacity

    1,881 MWh

  • National Solar Ranking:

    25th (34th in 2025 additions)

  • Enough Solar Installed to Power:

    605,828 homes

  • Percentage of State's Electricity from Solar:

    23.67%

  • Solar Jobs:

    2,525

  • Solar and Storage Companies in State:

    94 (2 Manufacturers, 64 Installers/Developers, 28 Others)

  • Total Solar Investment in State:

    $5.5 billion

  • Growth Projection and Ranking:

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

  • Number of Solar Installations:

    127,640

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Hawai’i State Solar Policy Resources

Hawai’i Energy Storage Policy and Market Overview

Hawai’i has a strong policy and regulatory framework supporting energy storage, driven by its high electricity costs, islanded grid, and commitment to a 100% renewable energy goal. The state has achieved significant progress in integrating storage to support grid reliability and high levels of solar generation.

Regulatory efforts have focused on distributed energy resource programs, time-of-use rates, and compensation structures that encourage both front-of-the-meter and behind-the-meter storage adoption. While market design continues to evolve, Hawai’i remains a leading market for solar-plus-storage.

 


 

Hawaii Energy Storage Policy Resources

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