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187.1 MW Natural Gas operating in Marinette, WI — Midcontinent Independent Transmission System Operator, Inc..
187.1 MW
Nameplate Capacity
3
Generators
units
Natural Gas Fired Combustion Turbine
Technology
1971
Operating Since
Coordinates
45.0869, -87.6880
County
Marinette, WI
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Wisconsin Public Service Corp | Wisconsin Public Service | — |
| Owner(s) | Wisconsin Public Service Corp | WEC Energy Group | — |
| Status | Operating | — | — |
The West Marinette plant is a natural gas-fired power plant located in Marinette County, Wisconsin. The plant has a total capacity of 187.1 MW across three natural gas fired combustion turbine generators. It began operating in 1971. The plant is owned by WEC Energy Group and operated by Wisconsin Public Service Corp.
In the most recent year of data, West Marinette generated 30,647 MWh, resulting in a capacity factor of 1.9%. The plant operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the ReliabilityFirst Corporation (RFC) NERC region. According to available data, the installed cost per kW was $196.73. West Marinette is ranked as the 16th largest of 19 power plants in Wisconsin, and 764th largest of 945 plants nationally.
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
2.7K MWh
Latest Month
30.6K MWh
Annual Generation
1.9%
Capacity Factor
CO₂ Intensity
1695 lb/MWh
NOx
2 lb/MWh
SO₂
0.009 lb/MWh
CH₄
0.018 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
7.5%
Annual Net Gen
177 GWh
CO₂eq
1696 lb/MWh
Subregion
MRO East
Gas turbine · Wisconsin Public Service Corporation · Data from 2020–2024
$263/kW
Installed Cost
$2/kW
Annual CapEx
$64.5/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Point of Interconnection
Nearest Substation
West Marinette Substation · 138 kV
Substation Distance
< 10 km
Operator
American Transmission Company
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
WPS.WEM33
Pricing Hub
MICHIGAN.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
Last updated 2026-03-26
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