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371 MW Natural Gas operating in Winnebago, WI — Midcontinent Independent Transmission System Operator, Inc..
371 MW
Nameplate Capacity
2
Generators
units
Natural Gas Fired Combustion Turbine
Technology
2000
Operating Since
Coordinates
44.1936, -88.5064
County
Winnebago, WI
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Wisconsin Power & Light Co | — | — |
| Owner(s) | Wisconsin Power & Light Co | — | — |
| Status | Operating | — | — |
The Alliant Energy Neenah plant is a 371 MW natural gas-fired power plant located in Winnebago County, Wisconsin. The plant began operating in 2000 and consists of two natural gas-fired combustion turbine generators. Wisconsin Power & Light Co. operates the facility. The plant is connected to the Midcontinent Independent Transmission System Operator (MISO) balancing authority.
In the most recent year of data, the plant generated 739,903 MWh of electricity, achieving a capacity factor of 22.6%. The plant ranks as the 10th largest of 19 power plants in Wisconsin, and 575th out of 945 plants nationally. Financial data indicates an installed cost of $315.75 per kW, according to FERC filings.
Generated from EIA, GEM, and public data sources
ISO/RTO
MISO
Market
ISO/RTO Member
NERC Region
RFC
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc.. (MISO)
Grid Voltage
138.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
36.1K MWh
Latest Month
739.9K MWh
Annual Generation
22.6%
Capacity Factor
CO₂ Intensity
1328 lb/MWh
NOx
0.498 lb/MWh
SO₂
0.007 lb/MWh
CH₄
0.027 lb/MWh
N₂O
0.003 lb/MWh
Capacity Factor
18.8%
Annual Net Gen
610 GWh
CO₂eq
1330 lb/MWh
Subregion
RFC West
Gas turbine · Wisconsin Power and Light Company · Data from 2020–2024
$307/kW
Installed Cost
$-21/kW
Annual CapEx
$31.0/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Point of Interconnection
Nearest Substation
NEEVIN · 138 kV
Substation Distance
< 10 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
ALTE.NEENAHG1
Pricing Hub
MICHIGAN.HUB
Alt. Hub / Zone
MINN.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
Last updated 2026-03-14
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