State Solar Policy

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Hawaii Solar

With fantastic solar insolation and high electricity prices due to a dependence on imported energy, Hawaii is an ideal solar market. However, interconnection continues to be an issue as Hawaiian utilities have imposed restrictions to avoid solar generators' loads on their systems.

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Facts on the Hawaii Solar Industry

  • There are currently more than 116 solar companies at work throughout the value chain in Hawaii, employing 2,800 people.
  • In 2015, Hawaii installed 117 MW of solar electric capacity, ranking it 13th nationally.
  • The 564 MW of solar energy currently installed in Hawaii ranks the state eighth in the country in installed solar capacity.  There is enough solar energy installed in the state to power 146,000 homes.
  • In 2015, $331 million was invested on solar installations in Hawaii.  This represents a 3% increase over the previous year, and is expected to grow again this year.
  • Installed solar photovoltaic system prices in the U.S. have dropped steadily- by 6% from last year and 48% from 2010. 

View more solar industry data.

Notable Solar Installations in Hawaii

  • Grove Farm on Kauai Island was completed in 2014 by developer SolarCity.  This photovoltaic project has the capacity to generate 12 MW of electricity-- enough to power over 3,100 Hawaii homes.  
  • Several large retailers in Hawaii have gone solar, including Macy's, Target, and Walmart. Safeway has installed one of the largest corporate photovoltaic systems in the state with 332 kW of solar capacity at their location in Ewa.
  • At 5 MW, Kalaeloa Solar Two is among the largest solar installations in Hawaii.  Completed in 2015 by Sunetric, this photovoltaic project has enough electric capacity to power more than 1,500 homes.

Solar Companies in Hawaii

There are currently more than 116 solar companies at work throughout the value chain in Hawaii.  These companies provide a wide variety of solar products and services ranging from solar system installations to the manufacturing of components used in photovoltaic panels.  These companies can be broken down across the following categories: 3 manufacturers, 079 contractor/installers, 8 project developers, 10 distributors and 16 engaged in other solar activities including financing, engineering and legal support. 

Don't see your company listed? Complete our National Solar Database Survey!

How much do solar panels cost in Hawaii? 

Solar panel costs have fallen significantly in the last 5 years and now installing solar panels can be one of the best investments you can make for your home. There are also now a lot of products on the market utilizing sophisticated financing vehicles to make solar panels for your home affordable. This website will show you the average retail price of installing home solar panels in Hawaii.

Solar rebates and solar tax credits in Hawaii.

Solar incentives are offered at the utility, county, state and federal level. These solar incentives can take various forms including solar tax credits, up front solar rebates, premium feed in tariffs (known as net metering) or solar production incentives.The eligibility and rules for each incentive program can vary greatly. This solar panel calculator allows you to enter your address and it will tell you what solar incentives will apply at your house and the value of these if you go solar.

Finding the right solar company for you:

There are many solar companies in Hawaii offering a wide variety of brands and options. This consumer reviews website will show you the consumer ratings of each solar installer that services your area and will also show you what brands of solar panels.

Hawaii State Solar Policy Resources

Hawaii Public Utilities Commission - Learn about the governing body that regulates the electricity rates and services of Hawaii public utilities

Hawaii Solar Energy Association – Learn what local solar companies have been doing to create solar jobs in Hawaii since 1977

Hawaii State Legislature - Track pending legislation affecting solar energy, locate and contact individual legislators, and stay up to date on current legislative issues in Hawaii

State Energy Office - Find a wide variety of information on state government energy programs, policy, projects, energy-saving strategies and energy-related statistics

DSIRE Incentives Database - Hawaii - Search a public clearinghouse for specific solar energy incentives in Hawaii and across the United States

U.S. Energy Information Administration - Hawaii State Profile - Explore official energy statistics, including data on electricity supply and demand, from the U.S. government


For more information about SEIA’s activities in Hawaii, send an email to our state affairs team and we will respond as promptly as possible.

You can also contact our state chapter, HSEA, for more information on Hawaii solar policy.

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