42nd largest plant in Alaska · 5047th nationally
Petersburg is a oil power plant in Alaska with a nameplate capacity of 16.3 MW. It generates roughly 780 MWh per year — enough to power about 74 average U.S. homes.
Its capacity factor of 1% reflects intermittent or peaking operation. At 1593 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.
| Plant Name | Petersburg |
|---|---|
| Operator | Petersburg Borough - (Ak) |
| City | Petersburg |
| County | Wrangell Petersburg County |
| State | Alaska |
| ZIP | 99833 |
| Coordinates | 56.81104, -132.95709 |
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| IC1 | Petroleum Liquids | Distillate Oil | 2.6 MW | Operating | 1972 |
| IC6 | Petroleum Liquids | Distillate Oil | 2.6 MW | Operating | 1993 |
| IC7 | Petroleum Liquids | Distillate Oil | 2.6 MW | Operating | 2001 |
| IC8 | Petroleum Liquids | Distillate Oil | 2.5 MW | Operating | 2012 |
| 4 | Conventional Hydroelectric | Water | 1.8 MW | Operating | 2023 |
| 3 | Conventional Hydroelectric | Water | 1.6 MW | Retired | 1954 |
| IC3 | Petroleum Liquids | Distillate Oil | 1.2 MW | Operating | 1965 |
| IC5 | Petroleum Liquids | Distillate Oil | 0.8 MW | Operating | 1979 |
| IC4 | Petroleum Liquids | Distillate Oil | 0.6 MW | Operating | 1979 |
| IC2 | Petroleum Liquids | Distillate Oil | 0.3 MW | Retired | 1972 |
| CO₂ | 621 metric tons |
|---|---|
| SO₂ | 1 metric tons |
| NOₓ | 12 metric tons |
| CO₂ Rate | 1593 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.