Keahole
Oil power plant in Hawaii County, Hawaii. 89.1 MW of nameplate capacity across 7 generators, operated by Hawaii Electric Light Co Inc.
Also known as Keahole Power Plant · EIA plant 8083
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Key facts
- Capacity
- 89.1 MWNameplate
- Generators
- 7 operatingEIA-860M, August 2026
- Operating since
- November 1984First generator online
- Operator
- Hawaii Electric Light Co IncEIA operator ID 8287
- Grid
- Not reported
- Price nodes
- None linkedNo verified ISO node
- Location
- Hawaii County, HI19.7317, −156.0283
- EIA plant ID
- 8083EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Keahole produces
Free · EIA-923Net generation, 2025
320 GWh
319,515 MWh, final
Capacity factor, 2025
40.9%
2024: 39.2%
January to July 2026
129 GWh
Provisional
Range, 2015 to 2025
245.4–385.3
GWh a year. Low 2023, high 2020
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 0 | Not reported | 12 of 12 |
| 2001 | 45,719 | Not reported | 12 of 12 |
| 2002 | 116,226 | Not reported | 12 of 12 |
| 2003 | 62,215 | Not reported | 12 of 12 |
| 2004 | 102,952 | Not reported | 12 of 12 |
| 2005 | 157,391 | Not reported | 12 of 12 |
| 2006 | 147,886 | Not reported | 12 of 12 |
| 2007 | 114,388 | Not reported | 12 of 12 |
| 2008 | 104,555 | Not reported | 12 of 12 |
| 2009 | 92,851 | Not reported | 7 of 12 |
| 2010 | 194,955 | 25.0% | 12 of 12 |
| 2011 | 200,280 | 25.7% | 12 of 12 |
| 2012 | 209,573 | 26.8% | 12 of 12 |
| 2013 | 260,680 | Not reported | 12 of 12 |
| 2014 | 301,712 | 38.7% | 12 of 12 |
| 2015 | 288,227 | 36.9% | 12 of 12 |
| 2016 | 303,209 | 38.7% | 12 of 12 |
| 2017 | 318,991 | 40.9% | 12 of 12 |
| 2018 | 348,713 | 44.7% | 12 of 12 |
| 2019 | 301,881 | 38.7% | 12 of 12 |
| 2020 | 385,327 | 49.2% | 12 of 12 |
| 2021 | 278,780 | 35.7% | 12 of 12 |
| 2022 | 285,372 | 36.6% | 12 of 12 |
| 2023 | 245,398 | 31.4% | 12 of 12 |
| 2024 | 306,913 | 39.2% | 12 of 12 |
| 2025 | 319,515 | 40.9% | 12 of 12 |
| 2026 (provisional, partial year) | 129,118 | 28.5% | 7 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 accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 2 | Petroleum Liquids | 17.6 | November 1989 |
| 7 | Petroleum Liquids | 18.0 | June 2009 |
| 21 | Petroleum Liquids | 2.5 | November 1984 |
| 22 | Petroleum Liquids | 2.5 | November 1984 |
| 23 | Petroleum Liquids | 2.5 | March 1988 |
| CT4 | Petroleum Liquids | 23.0 | May 2004 |
| CT5 | Petroleum Liquids | 23.0 | June 2004 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Hawaii Electric Light Co Inc as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
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.
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Power plants near Keahole
More plants operated by Hawaii Electric Light Co Inc
Questions about Keahole
How much power does Keahole produce?
Keahole reported 319,515 MWh (320 GWh) of net generation in 2025, a 40.9% capacity factor on 89.1 MW of nameplate capacity. From January to July 2026 it reported 129 GWh, which is provisional.
Where is Keahole?
Keahole is in Hawaii County, Hawaii, at 19.7317, −156.0283.
Who operates Keahole?
EIA-860M for August 2026 lists Hawaii Electric Light Co Inc as the operator (EIA operator ID 8287). The operator is not always the owner.
When did Keahole start operating?
Its first generator began operating in November 1984, 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