Port Washington power station

From Global Energy Monitor

Port Washington power station is a retired 320-megawatt (MW) coal-fired power station in the state of Wisconsin, United States.[1]


The map below shows the location of the power station in the state of Wisconsin, United States.

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Construction of the Port Washington Power Station began in 1930 and cost $7.5 million. Located right next to Lake Michigan, the first unit began operation on October 14, 1935. According to the WEC Energy Group, which owned and built the facility, the Port Washington Power Station was the "most efficient power plant in the world" between 1935 and 1948, using pulverized bituminous coal.[2] Another three units were built in the following decade; these units also held the world’s heat rate record from 1935 to 1948.[3] The facility was converted into a natural gas-fueled facility in 2005 (see below).

Conversion to Port Washington Generation Station

In 2003, as part of their "Power the Future" plan, We Energies and the WEC group proposed the Port Washington Generating Station (PWGS), a natural gas-fired facility that would replace the Port Washington power station.[4] Converting the pre-existing coal-fired station to the new PWGS took place from 2005 to 2008.[5] PWGS was built in two phases, with Phase I beginning commercial operation in July 2005, and Phase II beginning commercial operation in May 2008. Both phases have a generating capacity of 575 MW. According to We Energies, it is the most thermally efficient generating power plant in Wisconsin.[6] The entire plant cost approximately $669 million. We Energies contracted the company Wisconsin Power Constructor (WPC), a subsidiary of the Washington Division of URS Corp, to construct Phase II and provide engineering and procurement services.[3] During its construction, 300-500 employees were working on the site.[7]

WEC Energy has a goal to make their electric generation fleet net carbon-neutral by 2050 and reduce carbon dioxide emissions 60% by 2025 and 80% by the end of 2030, compared to 2005 levels. Since 2018, We Energies and WEC have retired more than 1,800 MW of coal-fueled power plants.[5]

Project Details

  • Sponsor: We Energies
  • Parent company: WEC Energy Group
  • Location: Port Washington, Wisconsin, United States
  • Coordinates: 43.3847, -87.8700 (exact)
  • Coal type: Bituminous[2]
  • Coal source: Unknown
  • Gross generating capacity (retired): 320 MW
    • Unit 1: Coal-fired subcritical, 80 MW (start-up in 1935)
    • Unit 2: Coal-fired subcritical, 80 MW (start-up in 1943)
    • Unit 3: Coal-fired subcritical, 80 MW (start-up in 1948)
    • Unit 4: Coal-fired subcritical, 80 MW (start-up in 1949)

Articles and Resources


  1. https://en.wikipedia.org/wiki/Port_Washington_Generating_Station
  2. 2.0 2.1 "Port Washington Power Plant: A National Historic Mechanical Engineering Landmark" (PDF). ASME. 2016. Retrieved May 13, 2021.
  3. 3.0 3.1 "Port Washington Generating Station, Phase 2, Port Washington, Wisconsin". POWER Magazine. 2008-09-15. Retrieved 2021-05-13.
  4. Wisconsin Energy Corporation (November 10, 2003). "Application of Wisconsin Electric Power Company". PSC of Wisconsin. Retrieved May 13, 2021.
  5. 5.0 5.1 "Committed to a cleaner energy future that is safe, reliable and affordable". WEC Energy Group. 2021. Retrieved 2021-05-13.
  6. "Port Washington Generating Station" (PDF). We Energies. December 2012. Retrieved May 13, 2021.
  7. Silverstein, Cary (2004-02-06). "Port Washington power plant could fuel new development". BizTimes - Milwaukee Business News. Retrieved 2021-05-13.