Compare power plants

Registry, engineering, and operating metrics shown on a consistent EIA basis.

Metric	Fox Energy Center Outagamie County	Alliant Energy Neenah Winnebago County
Capacity	618.8 MW	371 MW
Technology	Natural Gas Fired Combined Cycle	Natural Gas Fired Combustion Turbine
Operator	Wisconsin Public Service Corp	Wisconsin Power & Light Co
Operating units	3	2
Latest 12-month generation	4.15 TWh	739.9 GWh
Latest complete-year capacity factor	65.9% (2025)	22.7% (2024)
National technology rank	#235 of 538	#139 of 825
Latest EIA report	2026-06	2024-12

Generation comes from EIA-923. Capacity, unit counts, technology, and reporting relationships come from EIA-860. Incomplete reporting years are excluded from capacity-factor comparisons.

Compare power plants

Registry, engineering, and operating metrics shown on a consistent EIA basis.

Metric	Fox Energy Center Outagamie County	Alliant Energy Neenah Winnebago County
Capacity	618.8 MW	371 MW
Technology	Natural Gas Fired Combined Cycle	Natural Gas Fired Combustion Turbine
Operator	Wisconsin Public Service Corp	Wisconsin Power & Light Co
Operating units	3	2
Latest 12-month generation	4.15 TWh	739.9 GWh
Latest complete-year capacity factor	65.9% (2025)	22.7% (2024)
National technology rank	#235 of 538	#139 of 825
Latest EIA report	2026-06	2024-12

Generation comes from EIA-923. Capacity, unit counts, technology, and reporting relationships come from EIA-860. Incomplete reporting years are excluded from capacity-factor comparisons.