4th largest plant in Hawaii · 1339th nationally
Maalaea is a oil power plant in Hawaii with a nameplate capacity of 230 MW. It generates roughly 670.0k MWh per year — enough to power about 63,812 average U.S. homes.
Its capacity factor of 33% reflects intermittent or peaking operation. At 1522 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 (230 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 | Maalaea |
|---|---|
| Operator | Maui Electric Co Ltd |
| City | Kihei |
| County | Maui County |
| State | Hawaii |
| ZIP | 96753 |
| Coordinates | 20.80117, -156.49298 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 17 | Petroleum Liquids | Distillate Oil | 25.0 MW | Operating | 1998 |
| 19 | Petroleum Liquids | Distillate Oil | 25.0 MW | Operating | 2000 |
| 14 | Petroleum Liquids | Distillate Oil | 23.6 MW | Operating | 1992 |
| 16 | Petroleum Liquids | Distillate Oil | 23.6 MW | Operating | 1993 |
| 15 | Petroleum Liquids | Distillate Oil | 18.0 MW | Operating | 1993 |
| 18 | Petroleum Liquids | Distillate Oil | 18.0 MW | Operating | 2006 |
| 10 | Petroleum Liquids | Distillate Oil | 12.5 MW | Operating | 1979 |
| 11 | Petroleum Liquids | Distillate Oil | 12.5 MW | Operating | 1980 |
| 12 | Petroleum Liquids | Distillate Oil | 12.5 MW | Operating | 1988 |
| 13 | Petroleum Liquids | Distillate Oil | 12.5 MW | Operating | 1989 |
| 4 | Petroleum Liquids | Distillate Oil | 5.6 MW | Operating | 1973 |
| 5 | Petroleum Liquids | Distillate Oil | 5.6 MW | Operating | 1973 |
| 6 | Petroleum Liquids | Distillate Oil | 5.6 MW | Operating | 1975 |
| 7 | Petroleum Liquids | Distillate Oil | 5.6 MW | Operating | 1975 |
| 8 | Petroleum Liquids | Distillate Oil | 5.6 MW | Operating | 1977 |
| 9 | Petroleum Liquids | Distillate Oil | 5.6 MW | Operating | 1978 |
| 1 | Petroleum Liquids | Distillate Oil | 2.6 MW | Operating | 1971 |
| 2 | Petroleum Liquids | Distillate Oil | 2.6 MW | Operating | 1972 |
| 3 | Petroleum Liquids | Distillate Oil | 2.6 MW | Operating | 1972 |
| X1 | Petroleum Liquids | Distillate Oil | 2.6 MW | Operating | 1987 |
| X2 | Petroleum Liquids | Distillate Oil | 2.6 MW | Operating | 1987 |
| CO₂ | 509.8k metric tons |
|---|---|
| SO₂ | 1.4k metric tons |
| NOₓ | 4.6k metric tons |
| CO₂ Rate | 1522 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.