118th largest plant in Minnesota · 5263rd nationally
Hennepin Island is a hydroelectric power plant in Minnesota with a nameplate capacity of 13.7 MW. It generates roughly 43.4k MWh per year — enough to power about 4,133 average U.S. homes.
Its capacity factor of 36% reflects intermittent or peaking operation.
| Plant Name | Hennepin Island |
|---|---|
| Operator | Northern States Power Co - Minnesota |
| City | Minneapolis |
| County | Hennepin County |
| State | Minnesota |
| ZIP | 55401 |
| Coordinates | 44.98236, -93.25416 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | Water | 2.8 MW | Operating | 1954 |
| 2 | Conventional Hydroelectric | Water | 2.8 MW | Operating | 1955 |
| 3 | Conventional Hydroelectric | Water | 2.8 MW | Operating | 1955 |
| 4 | Conventional Hydroelectric | Water | 2.8 MW | Operating | 1954 |
| 5 | Conventional Hydroelectric | Water | 2.5 MW | Operating | 1955 |
| NERC Region | MRO |
|---|---|
| Balancing Authority | Midcontinent Independent Transmission System Operator, Inc.. |
Hydroelectric plants spin turbines using falling or flowing water — typically from a dam-impounded reservoir. They are dispatchable, long-lived, and emission-free at the point of generation, though large reservoirs can disrupt rivers and ecosystems and methane can be released from flooded vegetation.