Weston Power Plant

The Weston Power Plant site, near Wausau, in central Wisconsin, is home to three fossil-fueled electric generating units that make electricity for WPS customers. Weston 4, the newest unit, is a state-of-the-art, 595-megawatt electric generator that uses clean coal technologies — making it one of the cleanest power plants of its kind in the country. Weston 4 began operating on June 30, 2008. WPS owns 70% (416.5 MW) and Dairyland Power Cooperative of La Crosse, WI owns 30% (178.5 MW). Weston Unit 3 began operating in 1981, Unit 2 in 1960 and Unit 1 in 1954. Unit 1 was retired in 2015. Unit 2, W-31 and W-32 were retired in 2023.

Learn about our Weston 3 ReACT emission control project

An award-winning plant

WPS earned high marks for building Weston 4 with quality, excellence in design, efficiency and features to minimize environmental impact.

  • 2012 ISA Best Facility Award. The International Society of Automation (ISA) Electric Power Division named Weston 4 as their "2012 Best Facility." The award recognizes the power plant for its innovative use of digital control systems and optimization software. The ISA Power Division began in 1957 and has a current global membership of 2,400 members.
  • Power Magazine's 2008 Power Plant of the Year. Weston 4 was named "Power Plant of the Year" by Power Magazine. Power Magazine is a leading energy industry publication. The award recognizes a power plant that leads the industry by using advanced technology, being efficient and minimizing environmental impact.
  • Power Engineering magazine's 2008 Best Coal-Fired Project of the Year. Power Engineering magazine recognizes projects that set quality standards in the worldwide energy industry.
  • Finalist for Platts Energy Construction Project of the Year. Weston 4 was a finalist for the 2008 Platts Global Energy Awards in the category of "Construction Project of the Year."
Weston Power Plant Units First year of ownership Fuel Total MW
Rothschild, WI
Total WPS Weston capacity (nameplate rating) = 767 MW

* 70% WPS jointly owned with Dairyland Power Cooperative, La Crosse, WI (30%)

The United States Environmental Protection Agency finalized national regulations to provide a comprehensive set of requirements for the safe disposal of coal combustion residuals (CCRs), commonly known as coal ash, from coal-fired power plants. View our CCR rule compliance data and information.