Schofield Generating Station — Plant Summary
- EIA Plant ID
- 60328
- Capacity
- 50.4 MW
- Primary Fuel
- OBL
- Technology
- Other Waste Biomass
- Status
- Operating
- Location
- Honolulu, HI
- Operating Since
- 2018
- Generators
- 6
- Operator
- Hawaiian Electric Co Inc
- Parent Company
- Hawaiian Electric Industries
- Annual Generation
- 9,634 MWh
- Capacity Factor
- 2.2%
- Balancing Authority
- Hawaiian Electric Co Inc
- ISO/RTO
- —
- NERC Region
- —
Schofield Generating Station
OperatingBio. Liquids
Ranked #2 of 3 Bio. Liquids plants in HI#2 of 3 nationally
50.4 MW Bio. Liquids operating in Honolulu, HI — Hawaiian Electric Co Inc
EIAWD
50.4 MW
Nameplate Capacity
6
Generators
units
Other Waste Biomass
Technology
2018
Operating Since
Location
Coordinates
21.4785, -158.0581
County
Honolulu, HI
Nearby Plants
- Waihonu North SolarSolar5 MW · 4.7 km
- Lanikuhana Solar LLCSolar14.7 MW · 6.6 km
- Mililani South Solar FarmBESS78 MW · 6.9 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Hawaiian Electric Co Inc | Hawaiian Electric Company | — |
| Owner(s) | Hawaiian Electric Co Inc | Hawaiian Electric Industries | — |
| Status | Operating | — | — |
Ownership Chain
About
Schofield Generating Station is a 50.4 MW biomass-fueled power plant located in Honolulu County, Hawaii. The plant began operating in 2018 and is owned and operated by Hawaiian Electric Co. Inc, a subsidiary of Hawaiian Electric Industries. The facility utilizes six generators running on other waste biomass (OBL) as its primary fuel source.
The plant's latest annual generation was 9,634 MWh, resulting in a capacity factor of 2.2%. Schofield Generating Station is the second-largest of three biomass plants in Hawaii, and also ranks second nationally among similar facilities. The plant operates within the balancing authority of Hawaiian Electric Co Inc.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
—
Balancing Authority
Hawaiian Electric Co Inc
Grid Voltage
46 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Generation
3.7K MWh
Latest Month
9.6K MWh
Annual Generation
2.2%
Capacity Factor
Jan 2023 – Dec 2025
Financial Data
No financial data available for this plant.
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (10)Beta
Hazards·flooding
Flash Flood Warning: Oahu in Honolulu, HI
Flash Flood Warning issued March 21 at 8:40AM HST until March 21 at 11:00AM HST by NWS Honolulu HI
NWS Honolulu HI·5 days ago
Hazards·flooding
Flood Watch: Waianae Coast; Oahu North Shore; Olomana; Central Oahu; Waianae Mountains; Lanai Mauka; Kahoolawe; M
Flood Watch issued March 21 at 3:53AM HST until March 22 at 6:00PM HST by NWS Honolulu HI
NWS Honolulu HI·5 days ago
Industry·corporate
How sunflower seeds grown on Kauai help generate electricity on Oahu
A historic first delivery of biodiesel fuel made from sunflower oil to the Schofield Generating Station on the U.S. Army base took place in...
Schofield Generating Station (operator)U.S. Army (other)
Hawaii News Now·8 months ago
Industry·corporate
Hawai’i’s Role in the US Indo-Pacific Energy Security Dilemma
Hawai'i's local energy infrastructure issues have major implications for the security of U.S. forces in the Pacific.
Hawai'i (other)U.S. (other)
The Diplomat – Asia-Pacific Current Affairs Magazine·1 years ago
Last updated 2026-03-21
View all 10 articles