Puna Geothermal Venture I — Plant Summary
- EIA Plant ID
- 52028
- Capacity
- 51 MW
- Primary Fuel
- Geothermal
- Technology
- Geothermal
- Status
- Operating
- Location
- Hawaii, HI
- Operating Since
- 1992
- Generators
- 12
- Operator
- Puna Geothermal Venture
- Parent Company
- —
- Annual Generation
- 258,939 MWh
- Capacity Factor
- 57.8%
- Balancing Authority
- —
- ISO/RTO
- —
- NERC Region
- —
Puna Geothermal Venture I
OperatingGeothermal
Ranked #1 of 1 Geothermal plants in HI#24 of 70 nationally
51 MW Geothermal operating in Hawaii, HI
EIAGEMWD
51 MW
Nameplate Capacity
12
Generators
units
Geothermal
Technology
1992
Operating Since
Location
Coordinates
19.4790, -154.8884
County
Hawaii, HI
Nearby Plants
- PunaDistillate Oil39.1 MW · 22.6 km
- Mauna Loa Macadamia NutBESS1.3 MW · 23.5 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Puna Geothermal Venture | Puna Geothermal Venture | — |
| Owner(s) | Puna Geothermal Venture | Puna Geothermal Venture [100%] | — |
| Status | Operating | operating | — |
Ownership Chain
GEM identifies the owner as Puna Geothermal Venture [100%]
This entity is not yet in the GEM ownership database — chain unavailable.
About
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
Engineering & Generators
Grid Context
NERC Region
—
Balancing Authority
—
Grid Voltage
69 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
22.0K MWh
Latest Month
258.9K MWh
Annual Generation
57.8%
Capacity Factor
Jan 2022 – Dec 2024
Financial Data
No financial data available for this plant.
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (10)Beta
Hazards·flooding
Flood Watch: Waianae Coast; Oahu North Shore; Olomana; Central Oahu; Waianae Mountains; Lanai Mauka; Kahoolawe; M
Flood Watch issued March 21 at 3:53AM HST until March 22 at 6:00PM HST by NWS Honolulu HI
Flood Watch (hazard)
NWS Honolulu HI·5 days ago
Regulatory·state puc
Puna Geothermal Venture to start ‘Repower Project’ to boost renewable energy use, lower prices
Puna Geothermal Venture's long-awaited Repower Project was approved by the Hawaiʻi Public Utilities Commission, enabling the plant to increase its electricity...
Puna Geothermal Venture (developer)Hawaiʻi Public Utilities Commission (regulator)
Big Island Now·9 months ago
Industry·technology
Geothermal power exploration building up steam
Three state agencies have big ambitions to expand geothermal power production in Hawaii, and two somewhat competing bids for more funding are at a final stage.
Hawaii (other)
Hawaii Tribune-Herald·11 months ago
Regulatory·state puc
Puna Geothermal Plant Runs Into Problems Ramping Up Production
The utility that buys power from the plant has asked regulators for a temporary pause in proceedings.
Puna Geothermal Plant (operator)
Honolulu Civil Beat·2 years ago
Last updated 2026-03-21
View all 10 articles