Explore renewable energy and energy efficiency in Hawaii through projects and activities, statistics, maps, news, and policies.

U.S. Department of Energy Projects and Activities

Learn about projects and activities the U.S. Department of Energy (DOE) is supporting to promote energy efficiency and renewable energy in Hawaii.

Energy Statistics

Discover how much energy Hawaii consumes and how much electricity it generates in total and from renewables.

Renewable Energy Resource Maps

Find maps of Hawaii showing its biomass, solar, wind, geothermal, and hydropower resources.

Policies, Rebates, and Incentives

For information about policies, rebates, and incentives for saving energy and promoting renewable energy development, visit:

Featured News

March 7, 2014

Hawaii Utility Standards Allow Greater Solar Power Output in Some Neighborhoods

In late February, the Hawaiian Electric Company (HECO) announced new technical standards for interconnecting residential photovoltaic (PV) systems onto its grid. The new standards specify the speed that the PV systems disconnect from the grid during a temporary voltage spike. The effect of these standards will be to will allow some neighborhoods in the HECO service territory to provide greater amounts of power generated by PV systems back to the utility grid than is consumed locally on sunny days. More

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