Kapaia Power Station
Other power plant · Kauai County, Hawaii
Nameplate capacity
39 MW
Rank in Hawaii
#23
of 76 plants
In service since
2002
September 2002
Details
- Primary fuel
- Other
- Technology
- All Other
- Operator
- Kauai Island Utility Cooperative
- County
- Kauai County
- Generating units
- 1
- Share of state capacity
- 1.06%
- Rank among other plants in Hawaii
- #12 of 25
- EIA plant code
- 56258
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| CT1 | All Other | 39 MW | 28 MW | 2002 | 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
| Waipio Solar | Solar | 46 MW |
| AES Lawai Solar Hybrid | Solar | 40 MW |
| Puna | Other | 39 MW |
| W H Hill | Other | 37 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 39 MW solar plant and a 39 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