Wind farms we own and operate

Bent Tree Wind Farm

The Bent Tree Wind Farm is located near Albert Lea in Freeborn County, Minnesota. It began commercial operation in February 2011.

  • Nameplate capacity: 201 megawatts (enough to power approximately 50,000 homes)
  • Number of turbines: 122
  • Land span: Approximately 32,500 acres

Cedar Ridge Wind Farm

Cedar Ridge Wind Farm is located in the towns of Eden and Empire in Fond du Lac County, Wis. It began commercial operation in December 2008.

  • Nameplate capacity: 68 megawatts (enough to power approximately 17,000 homes)
  • Number of turbines: 41
  • Land span: Approximately 7,800 acres
Operations building

The Operations building at Cedar Ridge earned a Leadership in Energy and Environmental Design (LEED®) Gold certification from the U.S. Green Building Council.

English Farms Wind Farm

The English Farms Wind Farm is located in Poweshiek County, Iowa. Construction is expected to start in late 2018 and end in 2019.

  • Nameplate capacity: 170 megawatts (enough to power approximately 50,000 homes)
  • Number of turbines: 69
  • Land span: Approximately 20,000 acres

Franklin County Wind Farm

Franklin County Wind Farm is located in Franklin County, Iowa. It began commercial operation in 2012.

  • Nameplate capacity: 99 megawatts (enough to power approximately 25,000 homes)
  • Number of turbines: 60
  • Land span: Approximately 18,000 acres

Upland Prairie Wind Farm

The Upland Prairie Wind Farm is located in Clay and Dickinson Counties in Iowa. Construction started in spring 2018 and will be finished in early 2019.

  • Nameplate capacity: 300 megawatts (enough to power approximately 130,000 homes)
  • Number of turbines: 121
  • Land span: approximately 30,000 acres

Whispering Willow Wind Farm

The Whispering Willow Wind Farm is located in Franklin County, Iowa. It began commercial operation in December 2009.

  • Nameplate capacity: 200 megawatts (enough to power approximately 50,000 homes)
  • Number of turbines: 121
  • Land span: Approximately 33,000 acres

Wind farms we partly own

Forward Wind Energy Center

The Forward Wind Energy Center is located in southern Fond du Lac and northern Dodge Counties near Brownsville, Wisconsin. It is jointly owned by Alliant Energy, Wisconsin Public Service Corp. and Madison Gas and Electric.

  • Nameplate capacity: 129 megawatts
  • Number of turbines: 86

Great Western Wind Farm

The Great Western Wind Farm is located in Oklahoma. It is jointly owned by Alliant Energy Corporation and EDF Renewables. This wind farm serves a Google data center.

  • Nameplate capacity: 225 megawatts
  • Number of turbines: 93

Purchased wind power

We purchase nearly 600 megawatts of wind energy from wind farms across Iowa, southern Minnesota and Wisconsin.

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A clean energy future

How are we going to get there? With a strong strategy that includes renewable and highly efficient energy sources.

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