U.S. Department of Energy - Energy Efficiency and Renewable Energy

Geothermal Technologies Office

Hawaii Geothermal Area

The Hawaii geothermal area includes the Puna Geothermal Venture, which is located about 21 miles south of Hilo on the Big Island of Hawaii. The facility is situated along the Lower East Rift Zone of the Kilauea Volcano. At the Puna Geothermal Venture, geothermal fluid is brought to the surface through production wells, which tap into the resource at a depth of almost a mile. The steam, along with its non-condensable gases, is routed to the power plant and used to produce electricity for the Big Island of Hawaii.

Photo of Hawaii's Big Island (Puna) power plant.

This geothermal power plant provides about 30% of electricity demand on the Big Island (Puna) of Hawaii.