Nameplate capacity
8.7 MW
Rank in Hawaii
#51
of 76 plants
In service since
1982
March 1982
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Gay & Robinson Inc
- County
- Kauai County
- Generating units
- 4
- Share of state capacity
- 0.24%
- Rank among hydro plants in Hawaii
- #2 of 8
- EIA plant code
- 50333
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| HYD3 | Conventional Hydroelectric | 6.5 MW | 6.5 MW | 2019 | Operating |
| HYD2 | Conventional Hydroelectric | 1.2 MW | 0.8 MW | 1982 | Operating |
| DSL5 | Petroleum Liquids | 0.5 MW | 0.5 MW | 2010 | Standby/Backup: available for service but not normally used |
| DSL6 | Petroleum Liquids | 0.5 MW | 0.5 MW | 2010 | Standby/Backup: available for service but not normally used |
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
| Biomass to Energy Facility, Kauai | Other | 10 MW |
| HNL Emergency Power Facility | Other | 10 MW |
| Waimea | Other | 7.5 MW |
| Port Allen Solar | Solar | 6.0 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 8.7 MW solar plant and a 8.7 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