101st largest plant in Iowa · 3454th nationally
Red Rock Hydro Plant is a hydroelectric power plant in Iowa with a nameplate capacity of 55.2 MW. It generates roughly 103.6k MWh per year — enough to power about 9,865 average U.S. homes.
Its capacity factor of 21% reflects intermittent or peaking operation.
| Plant Name | Red Rock Hydro Plant |
|---|---|
| Operator | Western Minnesota Mun Pwr Agny |
| City | Pella |
| County | Marion County |
| State | Iowa |
| ZIP | 50219 |
| Coordinates | 41.36972, -92.98083 |
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 | 27.6 MW | Operating | 2021 |
| 2 | Conventional Hydroelectric | Water | 27.6 MW | Operating | 2021 |
| 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.