Port Allen (HI) — Plant Summary
- EIA Plant ID
- 6474
- Capacity
- 95.5 MW
- Primary Fuel
- Oil
- Technology
- Batteries, Petroleum Liquids
- Status
- Operating
- Location
- Kauai, HI
- Operating Since
- 1964
- Generators
- 12
- Operator
- Kauai Island Utility Cooperative
- Parent Company
- —
- Annual Generation
- 78,803 MWh
- Capacity Factor
- 9.4%
- Balancing Authority
- —
- ISO/RTO
- —
- NERC Region
- —
Port Allen (HI)
OperatingDistillate OilBESSHybrid
Ranked #3 of 12 Distillate Oil plants in HI#38 of 827 nationally
95.5 MW Batteries (6 MW) + Petroleum Liquids (90 MW) operating in Kauai, HI
EIAWD
95.5 MW
Nameplate Capacity
12
Generators
units
Hybrid (2)
Technology
Batteries + Petroleum Liquids
1964
Operating Since
Location
Coordinates
21.8996, -159.5850
County
Kauai, HI
Nearby Plants
- Port Allen SolarSolar6 MW · 0.4 km
- Gay RobinsonDistillate Oil8.7 MW · 5.0 km
- Kalaheo HydroHydro2 MW · 7.1 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Kauai Island Utility Cooperative | — | — |
| Owner(s) | Kauai Island Utility Cooperative | — | — |
| Status | Operating | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
The Port Allen power plant, located in Kauai County, Hawaii, has a total capacity of 95.5 MW. The plant, which began operating in 1964, is owned and operated by the Kauai Island Utility Cooperative. It primarily runs on Distillate Fuel Oil (DFO). The facility incorporates 12 generators and is considered a hybrid plant due to its integration of both petroleum liquids and battery storage technologies.
In the most recent year with available data, the Port Allen plant generated 78,803 MWh of electricity, achieving a capacity factor of 9.4%. The plant is the third-largest in Hawaii out of 14 facilities and ranks 63rd nationally among 886 plants. Recent news coverage of the plant includes topics such as industry trends, grid operations, hazards, and regulatory matters.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
—
Balancing Authority
—
Grid Voltage
57 kV
Regulatory Status
RE
Entity Type
Cooperative
Sector
Electric Utility
Generation
6.3K MWh
Latest Month
78.8K MWh
Annual Generation
9.4%
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
Flood Watch: Niihau; Kauai Southwest; Kauai Mountains; Kauai North; Kauai East; Kauai South
Flood Watch issued March 21 at 3:53AM HST until March 22 at 6:00PM HST by NWS Honolulu HI
Flood Watch (hazard)
NWS Honolulu HI·5 days ago
Grid·technology
With Inverters, an Island Adapts to Changing Physics of Power Grids
Rows of batteries on Kauai island provide more than just power: They stabilize the grid. A project between the Kauai Island Utility...
Kauai Island Utility (other)
National Laboratory of the Rockies (NLR) (.gov)·2 months ago
Industry·technology
EV charging station being built at Princeville Library
The Hawaii Department of Transportation announced construction on a new electric vehicle charging station at Kauai's Princeville Library has...
Hawaii Department of Transportation (other)
Spectrum News·3 months ago
Regulatory·federal policy
U.S. Department of Energy cuts funding for Kauaʻi's grid, electric vehicles
The U.S. Department of Energy announced last week that it would terminate more than $7.5 billion in funding awards to state-level energy...
U.S. Department of Energy (regulator)
Hawaii Public Radio·5 months ago
Last updated 2026-03-21
View all 10 articles