W H Hill
Hawaii County, Hawaii · EIA plant ID 772 · Operator: Hawaii Electric Light Co Inc
Nameplate37MWSummer 36 MW
Generators2in service
Net generation145GWh12 mo to Dec 2025
Capacity factor47%gas/coal/oil units, summer MW
Heat rate13,547Btu/kWhfossil units, electric fuel, HHV
First online1965Runs as baseload
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 | 225 | 72.4% | 13,799 |
| 2002 | 212.6 | 68.3% | 13,615 |
| 2003 | 202.6 | 65.1% | 13,206 |
| 2004 | 189.5 | 60.8% | 12,809 |
| 2005 | 230.1 | 74.0% | 13,109 |
| 2006 | 235.8 | 75.8% | 13,378 |
| 2007 | 221.2 | 71.1% | 13,227 |
| 2008 | 217.1 | 69.6% | 13,280 |
| 2009 | 208.6 | 67.1% | 13,300 |
| 2010 | 204.6 | 65.8% | 13,013 |
| 2011 | 195.4 | 62.8% | 13,062 |
| 2012 | 174 | 55.8% | 13,173 |
| 2013 | 171.5 | 55.1% | 13,196 |
| 2014 | 170.7 | 54.9% | 13,243 |
| 2015 | 177.4 | 57.1% | 13,353 |
| 2016 | 228.7 | 73.3% | 13,290 |
| 2017 | 172.6 | 55.5% | 13,433 |
| 2018 | 160.1 | 51.5% | 13,383 |
| 2019 | 172.3 | 55.4% | 13,534 |
| 2020 | 171.9 | 55.1% | 13,524 |
| 2021 | 142.6 | 45.9% | 13,651 |
| 2022 | 170 | 54.7% | 13,403 |
| 2023 | 133.4 | 42.9% | 13,740 |
| 2024 | 105.6 | 33.9% | 13,509 |
| 2025 | 145.4 | 46.7% | 13,547 |
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 |
|---|---|---|---|---|---|---|---|---|
| 5 | Petroleum Liquids | ST | 14.1 | 14.1 | Dec 1965 | Operating | — | coming soon |
| 6 | Petroleum Liquids | ST | 23 | 21.4 | Dec 1974 | 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% | 37 MW |
Nearby plants
Within 80 km.
| Kanoelehua | 21 MW | 0.2 km |
| Puueo | 3 MW | 4 km |
| Waiau Hydro | 1 MW | 6.4 km |
| Mauna Loa Macadamia Nut | 1 MW | 7.6 km |
| Puna | 39 MW | 8.6 km |
| Wailuku River Hydroelectric | 10 MW | 9.3 km |