Schofield Generating Station
Other power plant · Honolulu County, Hawaii
Nameplate capacity
50 MW
Rank in Hawaii
#19
of 76 plants
In service since
2018
June 2018
Details
- Primary fuel
- Other
- Technology
- Other Waste Biomass
- Operator
- Hawaiian Electric Co Inc
- County
- Honolulu County
- Generating units
- 6
- Share of state capacity
- 1.37%
- Rank among other plants in Hawaii
- #11 of 25
- EIA plant code
- 60328
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| S1 | Other Waste Biomass | 8.4 MW | 8.4 MW | 2018 | Operating |
| S2 | Other Waste Biomass | 8.4 MW | 8.4 MW | 2018 | Operating |
| S3 | Other Waste Biomass | 8.4 MW | 8.4 MW | 2018 | Operating |
| S4 | Other Waste Biomass | 8.4 MW | 8.4 MW | 2018 | Operating |
| S5 | Other Waste Biomass | 8.4 MW | 8.4 MW | 2018 | Operating |
| S6 | Other Waste Biomass | 8.4 MW | 8.4 MW | 2018 | 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
| AES Waikoloa Solar Hybrid | Battery storage | 60 MW |
| Puna Geothermal Venture I | Other | 51 MW |
| Kawailoa Solar | Solar | 49 MW |
| Waipio Solar | Solar | 46 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 50 MW solar plant and a 50 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