75th largest plant in Alaska · 8089th nationally
St Marys Ic is a oil power plant in Alaska with a nameplate capacity of 4.6 MW. It generates roughly 5.9k MWh per year — enough to power about 558 average U.S. homes.
Its capacity factor of 15% reflects intermittent or peaking operation. At 1154 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.
| Plant Name | St Marys Ic |
|---|---|
| Operator | Alaska Village Elec Coop, Inc |
| City | St. Mary's |
| County | Bethel County |
| State | Alaska |
| ZIP | 99658 |
| Coordinates | 62.05152, -163.17257 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 3A | Petroleum Liquids | Distillate Oil | 1.8 MW | Operating | 2022 |
| 4 | Petroleum Liquids | Distillate Oil | 1.8 MW | Operating | 2022 |
| 3 | Petroleum Liquids | Distillate Oil | 0.9 MW | Retired | 1974 |
| 1 | Petroleum Liquids | Distillate Oil | 0.6 MW | Retired | 1977 |
| 2 | Petroleum Liquids | Distillate Oil | 0.6 MW | Retired | 1980 |
| 1B | Petroleum Liquids | Distillate Oil | 0.5 MW | Retired | 2006 |
| 1C | Petroleum Liquids | Distillate Oil | 0.5 MW | Operating | 2022 |
| 2A | Petroleum Liquids | Distillate Oil | 0.5 MW | Operating | 2022 |
| CO₂ | 3.4k metric tons |
|---|---|
| SO₂ | 6 metric tons |
| NOₓ | 69 metric tons |
| CO₂ Rate | 1154 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.