GeothermalOperating

Puna Geothermal Venture I

Geothermal power plant in Hawaii County, Hawaii. 47.5 MW of nameplate capacity across 11 generators, operated by Puna Geothermal Venture.

Also known as Puna Geothermal Venture · EIA plant 52028

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PunaMauna Loa Macadamia NutW H HillWaiau HydroPuna Geothermal Venture I20 km
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6 plants within 36 km, from EIA coordinates.

Key facts

Capacity
47.5 MWNameplate
Generators
11 operatingEIA-860M, August 2026
Operating since
August 1992First generator online
Operator
Puna Geothermal VentureEIA operator ID 3608
Grid
Not reported
Price nodes
None linkedNo verified ISO node
Location
Hawaii County, HI19.4790, −154.8884
EIA plant ID
52028EIA plant page

Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.

How much power Puna Geothermal Venture I produces

Free · EIA-923

Net generation, 2025

208 GWh

207,927 MWh, final

Capacity factor, 2025

46.5%

2024: 57.8%

January to July 2026

Not reported

Provisional. 0 of 7 months reported

Range, 2015 to 2025

0.0–322.6

GWh a year. Low 2019, high 2017

Annual net generation, GWhCapacity factor below each year
Annual net generation from EIA-923
YearNet generation, MWhCapacity factorMonths reported
2000Not reportedNot reported0 of 12
2001206,592Not reported12 of 12
200272,761Not reported12 of 12
2003178,292Not reported12 of 12
2004213,288Not reported12 of 12
2005221,597Not reported12 of 12
2006212,276Not reported12 of 12
2007229,886Not reported12 of 12
2008234,333Not reported12 of 12
2009167,591Not reported12 of 12
2010200,59565.4%12 of 12
2011223,88873.0%12 of 12
2012241,634Not reported11 of 12
2013274,84161.5%12 of 12
2014253,84156.8%12 of 12
2015230,34051.6%12 of 12
2016260,10258.1%12 of 12
2017322,59272.2%12 of 12
2018110,08924.6%12 of 12
201900.0%12 of 12
20209,6402.2%12 of 12
2021183,75141.1%12 of 12
2022208,34646.6%12 of 12
2023192,58843.1%12 of 12
2024258,93957.8%12 of 12
2025207,92746.5%12 of 12
2026 (provisional, partial year)Not reportedNot reported0 of 7

* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.

Power prices and basis

Free account

No verified ISO price node is linked to this plant, or its price history could not load.

Emissions

Free · EPA CAMPD

No EPA emissions units are linked to this plant.

Water use

Free · EIA-923 cooling, USGS

No EIA cooling-water record for this plant in 2024.

Generators

Free · EIA-860M
GeneratorTechnologyNameplate MWOnline since
OEC11Geothermal3.5August 1992
OEC13Geothermal3.5August 1992
OEC14Geothermal3.5August 1992
OEC15Geothermal3.5August 1992
OEC21Geothermal3.5August 1992
OEC22Geothermal3.5August 1992
OEC23Geothermal3.5August 1992
OEC24Geothermal3.5August 1992
OEC25Geothermal3.5August 1992
OEC31Geothermal8.0February 2012
OEC32Geothermal8.0February 2012

Ownership and offtake

Pro
Pro

Ownership and offtake are part of Pro

Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Puna Geothermal Venture as the operator, which is not always the owner.

Modeled data

Pro

Pro adds modeled values for this plant. Everything above stays free.

Modeled

Generation potential vs reported

Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.

Analyst and MCP

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Questions about Puna Geothermal Venture I

How much power does Puna Geothermal Venture I produce?

Puna Geothermal Venture I reported 207,927 MWh (208 GWh) of net generation in 2025, a 46.5% capacity factor on 47.5 MW of nameplate capacity.

Where is Puna Geothermal Venture I?

Puna Geothermal Venture I is in Hawaii County, Hawaii, at 19.4790, −154.8884.

Who operates Puna Geothermal Venture I?

EIA-860M for August 2026 lists Puna Geothermal Venture as the operator (EIA operator ID 3608). The operator is not always the owner.

When did Puna Geothermal Venture I start operating?

Its first generator began operating in August 1992, according to EIA-860M.

Sources

  • EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
  • EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
  • Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)

Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page