115th largest plant in Alaska · 11275th nationally
Centennial is a oil power plant in Alaska with a nameplate capacity of 1.8 MW. It generates roughly 283 MWh per year — enough to power about 26 average U.S. homes.
Its capacity factor of 2% reflects intermittent or peaking operation. At 3317 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.
| Plant Name | Centennial |
|---|---|
| Operator | Metlakatla Power & Light |
| City | Metlakatla |
| County | Prince Of Wales Ketchikan County |
| State | Alaska |
| ZIP | 99926 |
| Coordinates | 55.12143, -131.56027 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| IC6 | Petroleum Liquids | Distillate Oil | 3.3 MW | Retired | 1987 |
| IC7 | Petroleum Liquids | Distillate Oil | 1.8 MW | Operating | 2017 |
| CO₂ | 469 metric tons |
|---|---|
| SO₂ | 1 metric tons |
| NOₓ | 9 metric tons |
| CO₂ Rate | 3317 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.