10th largest plant in Hawaii · 2710th nationally
Port Allen (Hi) is a oil power plant in Hawaii with a nameplate capacity of 89.5 MW. It generates roughly 45.4k MWh per year — enough to power about 4,323 average U.S. homes.
Its capacity factor of 6% reflects intermittent or peaking operation. At 1637 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.
| Plant Name | Port Allen (Hi) |
|---|---|
| Operator | Kauai Island Utility Cooperative |
| City | Eleele |
| County | Kauai County |
| State | Hawaii |
| ZIP | 96705 |
| Coordinates | 21.89958, -159.58504 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| GT2 | Petroleum Liquids | Distillate Oil | 23.8 MW | Operating | 1977 |
| GT1 | Petroleum Liquids | Distillate Oil | 19.2 MW | Operating | 1973 |
| ST1 | Petroleum Liquids | Distillate Oil | 10.0 MW | Retired | 1969 |
| 8 | Petroleum Liquids | Distillate Oil | 8.6 MW | Operating | 1991 |
| 9 | Petroleum Liquids | Distillate Oil | 8.6 MW | Operating | 1991 |
| D6 | Petroleum Liquids | Distillate Oil | 8.6 MW | Operating | 1990 |
| D7 | Petroleum Liquids | Distillate Oil | 8.6 MW | Operating | 1990 |
| BBA9 | Batteries | Battery | 6.0 MW | Approved | — |
| 3 | Petroleum Liquids | Distillate Oil | 2.7 MW | Operating | 1968 |
| 4 | Petroleum Liquids | Distillate Oil | 2.7 MW | Operating | 1968 |
| 5 | Petroleum Liquids | Distillate Oil | 2.7 MW | Operating | 1968 |
| IC1 | Petroleum Liquids | Distillate Oil | 2.0 MW | Operating | 1964 |
| IC2 | Petroleum Liquids | Distillate Oil | 2.0 MW | Operating | 1964 |
| CO₂ | 37.1k metric tons |
|---|---|
| SO₂ | 67 metric tons |
| NOₓ | 734 metric tons |
| CO₂ Rate | 1637 lb/MWh |
Annual totals and CO₂ rate reported by EPA eGRID for 2023. Reference averages are approximate U.S.-wide figures from the same dataset.
Oil-fired plants typically run only during peak demand or grid emergencies because oil is expensive compared to gas and coal. They have the highest CO₂ emissions per MWh of any common generation technology.