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51 MW Geothermal operating in Hawaii, HI
51 MW
Nameplate Capacity
12
Generators
units
Geothermal
Technology
1992
Operating Since
Coordinates
19.4790, -154.8884
County
Hawaii, HI
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Puna Geothermal Venture | Puna Geothermal Venture | — |
| Owner(s) | Puna Geothermal Venture | Puna Geothermal Venture | — |
| Status | Operating | operating | — |
GEM identifies the owner as Puna Geothermal Venture
This entity is not yet in the GEM ownership database — chain unavailable.
The Puna Geothermal Venture (PGV) is a geothermal energy power plant on the island of Hawaii, the largest island in the state of Hawaii. PGV is the first and only commercial geothermal power plant in Hawaii. Constructed on a site adjacent to failed experimental wells drilled and operated by the Hawaii Geothermal Project in the 1970s and 80s, construction on the generating facility began in 1989 and was completed in 1993.
Read more on WikipediaPuna Geothermal Venture I is a 51 MW geothermal power plant located in Hawaii County, Hawaii. The plant, which began operating in 1992, is owned and operated by Puna Geothermal Venture. It utilizes geothermal technology and consists of 12 generators. As of the most recent data, it is the largest geothermal plant in Hawaii (ranked 1 of 1) and the 24th largest in the United States (ranked 24 of 70).
In the latest annual reporting period, Puna Geothermal Venture I generated 258,939 MWh of electricity, achieving a capacity factor of 57.8%. The plant's primary fuel source is geothermal energy (GEO). The plant is located within the Hawaiian Electric Light Company (HELCO) balancing authority area, though Hawaii is not part of any organized RTO/ISO market.
Generated from EIA, GEM, and public data sources
Grid Region
—
Market
—
NERC Region
—
Balancing Authority
22.0K MWh
Latest Month
258.9K MWh
Annual Generation
57.8%
Capacity Factor
CO₂ Intensity
89 lb/MWh
NOx
0.001 lb/MWh
SO₂
2013
$2,851/kW
Est. Construction Cost
Total estimated cost: $145.4M
This plant is in a bilateral market territory without organized wholesale pricing. Nodal pricing data is not available.
Last updated 2026-03-26
View all 6 articlesNo ask pi reports yet for this entity.
ask pi about Puna Geothermal Venture I—
Grid Voltage
69.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
0.000 lb/MWh
CH₄
—
N₂O
—
Capacity Factor
43.1%
Annual Net Gen
193 GWh
CO₂eq
89 lb/MWh
Subregion
HICC Miscellaneous