# Port Washington Generating Station

MISO asset profile · https://askthegrid.com/assets/facilities/port-washington-generating-station

Port Washington Generating Station, LLC - Ozaukee County - MISO

A 1,150 MW net natural-gas-fired combined-cycle generating station in Port Washington, Ozaukee County, Wisconsin, on the shore of Lake Michigan. The facility consists of two power blocks, each rated at approximately 575 MW and each containing two GE 7FA.04 combustion-turbine generators, one Alstom heat-recovery steam generator with supplementary duct firing, and one GE D11 steam-turbine generator. The station replaced a 225 MW coal-fired facility that operated at the same site for more than 70 years. The station is owned by Port Washington Generating Station, LLC and operated by Wisconsin Electric Power Company under a 25-year lease structure approved by the Wisconsin Public Service Commission. The project represents a significant repowering and was financed through the state's affiliated leased-generation framework rather than conventional rate-base ownership.

## Metrics

- **Nameplate capacity:** 1229.6 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 4040 — plant-4040

## Facts

- **Technology:** Natural Gas Fired Combined Cycle
- **Operator:** Wisconsin Electric Power Company

## Related parties

- **Owner:** Port Washington Generating Station, LLC — Project company that constructs and owns the generating units ([source](https://www.wecenergygroup.com/))
- **Parent company:** WEC Energy Group, Inc. — Holding company and project sponsor ([source](https://www.wecenergygroup.com/))
- **Interconnection counterparty / transmission owner:** American Transmission Company LLC — Transmission owner and interconnection provider ([source](https://www.atcllc.com/))
- **Regulator:** Public Service Commission of Wisconsin — State regulator ([source](https://psc.wi.gov/))
- **Balancing authority / market operator:** Midcontinent Independent System Operator, Inc. (MISO) — Balancing authority and wholesale market operator ([source](https://www.misoenergy.org/))
- **EPC contractor / construction contractor:** Wisconsin Power Constructor / URS Washington Division — Phase 2 construction and engineering/procurement contractor
- **Parent company:** W.E. Power, LLC — Intermediate holding company and project sponsor ([source](https://www.wecenergygroup.com/))

## Sources

- [cdn.misoenergy.org](http://cdn.misoenergy.org/MISO%20Comments%20to%20EPA%20re%20GHG%20Standards%20for%20Power%20Plants_Docket%20No.%20EPA-HQ-OAR-2023-0072629843.pdf) — cdn.misoenergy.org · public_source — Source retained for exact-record publication review.
- [api.eia.gov](https://api.eia.gov/v2/electricity/operating-generator-capacity/data?api_key=DEMO_KEY&data[0]=nameplate-capacity-mw&data[1]=net-summer-capacity-mw&data[2]=net-winter-capacity-mw&facets[plantid][]=4040&frequency=monthly&start=2025-12&end=2025-12) — api.eia.gov · authoritative — Source retained for exact-record publication review.
- [apps.dnr.wi.gov](https://apps.dnr.wi.gov/warp_ext/am_permittracking2.aspx?id=3000878) — apps.dnr.wi.gov · authoritative — Source retained for exact-record publication review.
- [apps.psc.wi.gov](https://apps.psc.wi.gov/ERF/ERFview/viewdoc.aspx?docid=565256) — apps.psc.wi.gov · authoritative — Source retained for exact-record publication review.
- [stocklight.com](https://stocklight.com/stocks/us/nyse-wec/wec-energy-group/annual-reports/nyse-wec-2004-10K-04640823.pdf) — stocklight.com · public_source — Source retained for exact-record publication review.

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Canonical page: https://askthegrid.com/assets/facilities/port-washington-generating-station
Website: [Port Washington Generating Station, LLC](https://www.wecenergygroup.com/)

Source: Ask the Grid — https://askthegrid.com/