3rd largest plant in Hawaii · 1073rd nationally
Kalaeloa Cogen Plant is a oil power plant in Hawaii with a nameplate capacity of 299 MW. It generates roughly 1.3M MWh per year — enough to power about 124,307 average U.S. homes.
Its capacity factor of 50% puts it in the middle range — running steadily but not full-time. At 1254 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.
Ghost bars are each month's theoretical maximum (299 MW nameplate × hours in the month). Filled bars are actual net generation reported to EIA Form 923. The gap between them is capacity factor made visible.
| Plant Name | Kalaeloa Cogen Plant |
|---|---|
| Operator | Kalaeloa Partners Lp |
| City | Kapolei |
| County | Honolulu County |
| State | Hawaii |
| ZIP | 96707 |
| Coordinates | 21.30211, -158.09632 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| CT1 | Petroleum Liquids | Residual Oil | 119 MW | Operating | 1989 |
| CT2 | Petroleum Liquids | Residual Oil | 119 MW | Operating | 1991 |
| ST | Petroleum Liquids | Distillate Oil | 61.0 MW | Operating | 1991 |
| Owner | Location | Share |
|---|---|---|
| Harbert Power, Llc | Birmingham, AL | 10000.0% |
Ownership reported to EIA Form 860. Percentages reflect reported generator-level ownership share, averaged when a plant has multiple generators.
| CO₂ | 818.5k metric tons |
|---|---|
| SO₂ | 2.8k metric tons |
| NOₓ | 4.4k metric tons |
| CO₂ Rate | 1254 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.