Puna Geothermal Venture I
Hawaii County, Hawaii · EIA plant ID 52028 · Operator: Puna Geothermal Venture
Nameplate51MWSummer 43 MW
Generators12in service
Net generation208GWh12 mo to Dec 2025
Capacity factor31%geothermal units, summer MW
Heat rate—thermal plants only
First online1992
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), geothermal units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 206.6 | 72.3% | — |
| 2002 | 72.8 | 25.5% | — |
| 2003 | 178.3 | 62.4% | — |
| 2004 | 213.3 | 78.3% | — |
| 2005 | 221.6 | 81.6% | — |
| 2006 | 212.3 | 78.2% | — |
| 2007 | 229.9 | 84.7% | — |
| 2008 | 234.3 | 86.1% | — |
| 2009 | 167.6 | 61.7% | — |
| 2010 | 200.6 | 73.9% | — |
| 2011 | 223.9 | 82.5% | — |
| 2012 | 261 | 70.8% | — |
| 2013 | 274.8 | 73.0% | — |
| 2014 | 253.8 | 67.4% | — |
| 2015 | 230.3 | 61.2% | — |
| 2016 | 260.1 | 68.9% | — |
| 2017 | 322.6 | 85.6% | — |
| 2018 | 110.1 | 29.2% | — |
| 2019 | 0 | 0.0% | — |
| 2020 | 9.6 | 2.5% | — |
| 2021 | 183.8 | 48.8% | — |
| 2022 | 208.3 | 55.3% | — |
| 2023 | 192.6 | 51.1% | — |
| 2024 | 258.9 | 68.5% | — |
| 2025 | 207.9 | 55.2% | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| OEC11 | Geothermal | ST | 3.5 | 3.1 | Aug 1992 | Operating | — | coming soon |
| OEC12 | Geothermal | ST | 3.5 | 3.1 | Aug 1992 | Operating (Out of service) | — | coming soon |
| OEC13 | Geothermal | ST | 3.5 | 3.1 | Aug 1992 | Operating | — | coming soon |
| OEC14 | Geothermal | ST | 3.5 | 3.1 | Aug 1992 | Operating | — | coming soon |
| OEC15 | Geothermal | ST | 3.5 | 3.1 | Aug 1992 | Operating | — | coming soon |
| OEC21 | Geothermal | ST | 3.5 | 3.1 | Aug 1992 | Operating | — | coming soon |
| OEC22 | Geothermal | ST | 3.5 | 3.1 | Aug 1992 | Operating | — | coming soon |
| OEC23 | Geothermal | ST | 3.5 | 3.1 | Aug 1992 | Operating | — | coming soon |
| OEC24 | Geothermal | ST | 3.5 | 3.1 | Aug 1992 | Operating | — | coming soon |
| OEC25 | Geothermal | ST | 3.5 | 3.1 | Aug 1992 | Operating | — | coming soon |
| OEC31 | Geothermal | BT | 8 | 6 | Feb 2012 | Operating | — | coming soon |
| OEC32 | Geothermal | BT | 8 | 6 | Feb 2012 | Operating | — | coming soon |
| 1-2 | Geothermal | ST | 3.5 | 3.3 | Aug 1992 | not_current | — | coming soon |
| 1-3 | Geothermal | ST | 3.5 | 3.3 | Aug 1992 | not_current | — | coming soon |
| 1-4 | Geothermal | ST | 3.5 | 3.3 | Aug 1992 | not_current | — | coming soon |
| 1-5 | Geothermal | ST | 3.5 | 3.3 | Aug 1992 | not_current | — | coming soon |
| 2-1 | Geothermal | ST | 3.5 | 3.3 | Aug 1992 | not_current | — | coming soon |
| 2-2 | Geothermal | ST | 3.5 | 3.3 | Aug 1992 | not_current | — | coming soon |
| 2-3 | Geothermal | ST | 3.5 | 3.3 | Aug 1992 | not_current | — | coming soon |
| 2-4 | Geothermal | ST | 3.5 | 3.3 | Aug 1992 | not_current | — | coming soon |
| 2-5 | Geothermal | ST | 3.5 | 3.3 | Aug 1992 | not_current | — | coming soon |
| GEN1 | Geothermal | ST | 3.5 | 3.3 | Aug 1992 | not_current | — | coming soon |
Owner / operator
Operator: Puna Geothermal Venture. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Puna Geothermal Venture | 100.0% | 51 MW |
Nearby plants
Within 80 km.
| Puna | 39 MW | 22.6 km |
| Mauna Loa Macadamia Nut | 1 MW | 23.5 km |
| W H Hill | 37 MW | 30.9 km |
| Kanoelehua | 21 MW | 31.1 km |
| Puueo | 3 MW | 34.7 km |
| Waiau Hydro | 1 MW | 36.1 km |