186th largest plant in Iowa · 6865th nationally
Sumner is a oil power plant in Iowa with a nameplate capacity of 5.4 MW. It generates roughly 655 MWh per year — enough to power about 62 average U.S. homes.
Its capacity factor of 1% reflects intermittent or peaking operation. At 1793 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.
| Plant Name | Sumner |
|---|---|
| Operator | City Of Sumner - (Ia) |
| City | Sumner |
| County | Bremer County |
| State | Iowa |
| ZIP | 50674 |
| Coordinates | 42.84640, -92.09780 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 1 | Petroleum Liquids | Distillate Oil | 2.6 MW | Retired | 1972 |
| 6 | Petroleum Liquids | Distillate Oil | 1.8 MW | Retired | 1999 |
| G1 | Petroleum Liquids | Distillate Oil | 1.8 MW | Operating | 2021 |
| G2 | Petroleum Liquids | Distillate Oil | 1.8 MW | Operating | 2021 |
| G3 | Petroleum Liquids | Distillate Oil | 1.8 MW | Operating | 2021 |
| 2 | Petroleum Liquids | Distillate Oil | 1.2 MW | Retired | 1956 |
| CO₂ | 587 metric tons |
|---|---|
| SO₂ | 1 metric tons |
| NOₓ | 11 metric tons |
| CO₂ Rate | 1793 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.
| NERC Region | MRO |
|---|---|
| Balancing Authority | Midcontinent Independent Transmission System Operator, Inc.. |
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.