Port Washington Generating Station
Port Washington Generating Station is a 1 GW natural gas power plant in Ozaukee County, Wisconsin, operated by Wisconsin Electric Power Co. EIA-860M lists 6 generating units here, inside MISO. Its units entered service between 2005 and 2008.
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
- 1,229.6 MW
- 1,236.5 MW net summer
- Generating units
- 6
- In service
- 2005–2008
- EIA plant ID
- 4040
Where it is
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- County
- Ozaukee County, Wisconsin
- Coordinates
- 43.3842, -87.8689
- Balancing authority
- MISO
- Sector
- Electric Utility
Units, technology and status
- Operator of record
- Wisconsin Electric Power Co
- Primary energy source
- Natural gas
- Technologies
- Natural Gas Fired Combined Cycle
- Status
- Operating
Port Washington Generating Station: FAQ
- Where is Port Washington Generating Station?
- In Ozaukee 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 Port Washington Generating Station?
- 1 GW of nameplate capacity across 6 units, as of the EIA-860M release for 2026-07.
- Who owns Port Washington Generating Station?
- 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 Port Washington Generating Station 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 "Port Washington Generating Station LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Port Washington Generating Station still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.