Waimea
Hawaii County, Hawaii · EIA plant ID 768 · Operator: Hawaii Electric Light Co Inc
Nameplate8MWSummer 8 MW
Generators3in service
Net generation6GWh12 mo to Dec 2025
Capacity factor10%gas/coal/oil units, summer MW
Heat rate10,348Btu/kWhfossil units, electric fuel, HHV
First online1970Runs as peaking
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 | 2.9 | 4.0% | 11,167 |
| 2002 | 8.1 | 11.5% | 11,041 |
| 2003 | 7.7 | 10.8% | 10,810 |
| 2004 | 3.9 | 5.8% | 10,955 |
| 2005 | 5.1 | 7.6% | 10,933 |
| 2006 | 3 | 4.4% | 10,891 |
| 2007 | 4.1 | 6.1% | 11,311 |
| 2008 | 2.3 | 3.5% | 10,586 |
| 2009 | 3.7 | 5.6% | 10,588 |
| 2010 | 2.8 | 4.2% | 10,291 |
| 2011 | 1.8 | 2.8% | 11,355 |
| 2012 | 1.1 | 1.7% | 10,918 |
| 2013 | 4.1 | 6.2% | 10,769 |
| 2014 | 3 | 4.6% | 11,212 |
| 2015 | 2.8 | 4.3% | 11,455 |
| 2016 | 1.8 | 2.7% | 11,039 |
| 2017 | 1 | 1.6% | 10,806 |
| 2018 | 0.9 | 1.4% | 10,812 |
| 2019 | 1 | 1.5% | 10,633 |
| 2020 | 1.1 | 1.7% | 10,674 |
| 2021 | 1.3 | 2.0% | 10,595 |
| 2022 | 2.1 | 3.3% | 10,584 |
| 2023 | 1.7 | 2.5% | 10,564 |
| 2024 | 7.3 | 11.1% | 10,280 |
| 2025 | 6.2 | 9.5% | 10,348 |
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 |
|---|---|---|---|---|---|---|---|---|
| 12 | Petroleum Liquids | IC | 2.5 | 2.5 | Dec 1970 | Operating | — | coming soon |
| 13 | Petroleum Liquids | IC | 2.5 | 2.5 | May 1972 | Operating | — | coming soon |
| 14 | Petroleum Liquids | IC | 2.5 | 2.5 | May 1972 | Operating | — | coming soon |
| 10 | Petroleum Liquids | IC | 1 | 1 | Oct 1954 | Retired Jan 2001 | — | coming soon |
| 8 | Petroleum Liquids | IC | 1 | 1 | Oct 1954 | Retired Jan 2001 | — | coming soon |
| 9 | Petroleum Liquids | IC | 1 | 1 | Oct 1954 | Retired Jan 2001 | — | 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% | 8 MW |
Nearby plants
Within 80 km.
| Hale Kuawehi Solar Hybrid | 74 MW | 10 km |
| AES Waikoloa Solar Hybrid | 60 MW | 15.5 km |
| Keamuku | — | 16.7 km |
| Hamakua Energy Plant | 66 MW | 24.7 km |
| Hawi Wind Farm | 11 MW | 30.5 km |
| Keahole | 89 MW | 47.7 km |