Puna
Hawaii County, Hawaii · EIA plant ID 7130 · Operator: Hawaii Electric Light Co Inc
Nameplate39MWSummer 34 MW
Generators2in service
Net generation58GWh12 mo to Dec 2025
Capacity factor19%gas/coal/oil units, summer MW
Heat rate13,487Btu/kWhfossil units, electric fuel, HHV
First online1988Runs as intermediate
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), gas/coal/oil 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.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 104.9 | — | — |
| 2002 | 153.5 | — | — |
| 2003 | 123 | 41.3% | 14,498 |
| 2004 | 101.5 | 34.0% | 15,331 |
| 2005 | 115.4 | 38.7% | 15,241 |
| 2006 | 111.1 | 37.3% | 15,502 |
| 2007 | 90.6 | 30.4% | 15,867 |
| 2008 | 92.3 | 30.9% | 15,941 |
| 2009 | 100 | 33.6% | 15,729 |
| 2010 | 75 | 25.2% | 16,009 |
| 2011 | 81 | 27.2% | 14,304 |
| 2012 | 74.4 | 24.9% | 14,490 |
| 2013 | 83.2 | 27.9% | 14,183 |
| 2014 | 45 | 15.1% | 14,753 |
| 2015 | 20.7 | 7.0% | 12,853 |
| 2016 | 16.1 | 5.4% | 15,343 |
| 2017 | 19.3 | 6.5% | 15,549 |
| 2018 | 40.2 | 13.5% | 14,326 |
| 2019 | 62.1 | 20.8% | 14,115 |
| 2020 | 54.1 | 18.1% | 13,966 |
| 2021 | 80.7 | 27.1% | 13,707 |
| 2022 | 61.9 | 20.8% | 12,871 |
| 2023 | 51.1 | 17.2% | 13,110 |
| 2024 | 105.9 | 35.5% | 13,672 |
| 2025 | 58.1 | 19.5% | 13,487 |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Petroleum Liquids | ST | 15.5 | 14 | Aug 1988 | Operating | — | coming soon |
| 3 | Petroleum Liquids | GT | 23.6 | 20 | Aug 1992 | Operating | — | coming soon |
Owner / operator
Operator: Hawaii Electric Light Co Inc. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Hawaii Electric Light Co Inc | 100.0% | 39 MW |
Nearby plants
Within 80 km.
| Mauna Loa Macadamia Nut | 1 MW | 3.7 km |
| W H Hill | 37 MW | 8.6 km |
| Kanoelehua | 21 MW | 8.8 km |
| Puueo | 3 MW | 12.2 km |
| Waiau Hydro | 1 MW | 13.5 km |
| Wailuku River Hydroelectric | 10 MW | 15.3 km |