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1823.1 MW Conventional Steam Coal (642 MW) + Natural Gas Fired Combustion Turbine (1182 MW) planned in Milwaukee, WI — Midcontinent Independent Transmission System Operator, Inc..
1,823.1 MW
Nameplate Capacity
7
Generators
units
Hybrid (2)
Technology
Conventional Steam Coal + Natural Gas Fired Combustion Turbine
Planned: 1965
Planned Operation
Coordinates
42.8457, -87.8294
County
Milwaukee, WI
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Wisconsin Electric Power Co | Wisconsin Electric Power | — |
| Owner(s) | Wisconsin Electric Power Co | WEC Energy Group | — |
| Status | Planned | — | — |
South Oak Creek is a 641.6 MW conventional steam coal power plant located in Milwaukee County, Wisconsin. The plant began operating in 1965 and consists of two generators. It is owned by WEC Energy Group and operated by Wisconsin Electric Power Co. The plant's primary fuel source is subbituminous coal (SUB). South Oak Creek operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the ReliabilityFirst Corporation (RFC) NERC region.
In the most recent year with available data, South Oak Creek generated 2,101,471 MWh of electricity, achieving a capacity factor of 37.4%. The plant ranks as the third largest of four coal plants in Wisconsin, and 47th out of 75 coal plants nationally. Financial data indicates an installed cost of $1212.12 per kW, based on 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
230.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
107.5K MWh
Latest Month
2.1M MWh
Annual Generation
37.4%
Capacity Factor
CO₂ Intensity
2420 lb/MWh
NOx
0.752 lb/MWh
SO₂
0.065 lb/MWh
CH₄
0.254 lb/MWh
N₂O
0.037 lb/MWh
Capacity Factor
33.0%
Annual Net Gen
3582 GWh
CO₂eq
2437 lb/MWh
Subregion
RFC West
Steam turbine · Wisconsin Electric Power Company · Data from 2015–2024
$942/kW
Installed Cost
$-220/kW
Annual CapEx
$30.7/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Market Position
ISO/RTO Market
MISO
LMP Node
WEC.OKCGC8
Pricing Hub
MICHIGAN.HUB
Alt. Hub / Zone
ILLINOIS.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
Last updated 2026-03-26
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