20th largest plant in Wisconsin · 1145th nationally
Valley (Wi) is a natural gas power plant in Wisconsin with a nameplate capacity of 275 MW. It generates roughly 377.1k MWh per year — enough to power about 35,918 average U.S. homes.
Its capacity factor of 16% reflects intermittent or peaking operation. At 787 lb CO₂/MWh, its emission rate sits below the national grid average of roughly 800 lb/MWh.
Ghost bars are each month's theoretical maximum (275 MW nameplate × hours in the month). Filled bars are actual net generation reported to EIA Form 923. The gap between them is capacity factor made visible.
| Plant Name | Valley (Wi) |
|---|---|
| Operator | Wisconsin Electric Power Co |
| City | Milwaukee |
| County | Milwaukee County |
| State | Wisconsin |
| ZIP | 53233 |
| Coordinates | 43.03030, -87.92330 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 1 | Natural Gas Steam Turbine | Natural Gas | 136 MW | Operating | 1968 |
| 2 | Natural Gas Steam Turbine | Natural Gas | 136 MW | Operating | 1969 |
| 3 | Petroleum Liquids | Distillate Oil | 2.7 MW | Standby | 1969 |
| CO₂ | 148.4k metric tons |
|---|---|
| SO₂ | 1 metric tons |
| NOₓ | 79 metric tons |
| CO₂ Rate | 787 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 | RFC |
|---|---|
| Balancing Authority | Midcontinent Independent Transmission System Operator, Inc.. |
Natural gas plants are the workhorse of the modern grid. Combined-cycle units achieve very high efficiency and can ramp up and down quickly to balance variable renewables. They emit roughly half the CO₂ per MWh of coal and far less of other pollutants, but they still release upstream methane during fuel extraction.