12th largest plant in Wisconsin · 862nd nationally
John P Madgett is a coal power plant in Wisconsin with a nameplate capacity of 387 MW. It generates roughly 1.2M MWh per year — enough to power about 118,978 average U.S. homes.
Its capacity factor of 37% reflects intermittent or peaking operation. At 2714 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.
Ghost bars are each month's theoretical maximum (387 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 | John P Madgett |
|---|---|
| Operator | Dairyland Power Coop |
| City | Alma |
| County | Buffalo County |
| State | Wisconsin |
| ZIP | 54610 |
| Coordinates | 44.30358, -91.91265 |
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 Steam Coal | Subbituminous Coal | 387 MW | Operating | 1979 |
| CO₂ | 1.7M metric tons |
|---|---|
| SO₂ | 652 metric tons |
| NOₓ | 618 metric tons |
| CO₂ Rate | 2714 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.. |
Coal plants burn pulverized coal to boil water and spin steam turbines. They emit substantial CO₂, SO₂, and NOₓ along with mercury and particulate matter. Modern units include scrubbers and selective catalytic reduction; older units are increasingly being retired or converted to natural gas as economics shift.