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Geothermal
Geothermal energy is the heat stored beneath the earth's surface in the form of hot liquid, dry steam, or hot dry rock.
Puna Geothermal Ventures on the slopes of the Big Island’s Kilauea Volcano, produces energy using hot liquid brought up from underground wells. The hot liquid creates steam that turns turbines to produce electricity. The electricity generated by PGV is distributed by HELCO to Big Island customers.
In the 1980s, HELCO operated and maintained a 3-MW demonstration power plant for seven years, using the geothermal well developed by the University of Hawaii.
--Geothermal Resources Council virtual tour
The Future of Geothermal
Puna Geothermal plans to expand production from 30 MW to 60 MW.
More About Geothermal
