South Oak Creek
South Oak Creek is a 642 MW coal power plant in Milwaukee County, Wisconsin, operated by Wisconsin Electric Power Co. EIA-860M lists 2 generating units here, inside MISO. Its units entered service between 1965 and 1967.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Nameplate capacity
- 641.6 MW
- 616 MW net summer
- Generating units
- 2
- In service
- 1965–1967
- EIA plant ID
- 4041
Where it is
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- County
- Milwaukee County, Wisconsin
- Coordinates
- 42.8457, -87.8294
- Balancing authority
- MISO
- Sector
- Electric Utility
Units, technology and status
- Operator of record
- Wisconsin Electric Power Co
- Primary energy source
- Coal
- Technologies
- Conventional Steam Coal
- Status
- Operating
South Oak Creek: FAQ
- Where is South Oak Creek?
- In Milwaukee County, Wisconsin (WI). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
- How big is South Oak Creek?
- 642 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
- Who owns South Oak Creek?
- EIA-860M names Wisconsin Electric Power Co as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
- Is this the same as South Oak Creek LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Wisconsin Electric Power Co here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "South Oak Creek LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is South Oak Creek still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.