Hamakua Energy Plant
Other power plant · Hawaii County, Hawaii
Nameplate capacity
66 MW
Rank in Hawaii
#16
of 76 plants
In service since
2000
July 2000
Details
- Primary fuel
- Other
- Technology
- Petroleum Liquids
- Operator
- Hamakua Energy LP
- County
- Hawaii County
- Generating units
- 3
- Share of state capacity
- 1.79%
- Rank among other plants in Hawaii
- #9 of 25
- EIA plant code
- 55369
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| CT1 | Petroleum Liquids | 23 MW | 22 MW | 2000 | Operating |
| CT2 | Petroleum Liquids | 23 MW | 22 MW | 2000 | Operating |
| ST1 | Petroleum Liquids | 20 MW | 17 MW | 2000 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Hawaii
| Waiawa Solar Power Hybrid | Battery storage | 72 MW |
| Kawailoa Wind | Wind | 69 MW |
| AES Waikoloa Solar Hybrid | Battery storage | 60 MW |
| Puna Geothermal Venture I | Other | 51 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 66 MW solar plant and a 66 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Hawaii power plants · What Hawaii actually generates