Wind Energy

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MidAmerican Energy is a recognized leader in the use and development of renewable energy; no other U.S. rate-regulated utility owns more wind-powered generation capacity.



Previous Projects

Between 2004 and 2010, MidAmerican Energy placed nearly 1,285 megawatts of wind-powered generation into service in the Iowa counties of Adair, Buena Vista, Calhoun, Carroll, Cass, Crawford, Floyd, Hamilton, Polk, Pocahontas, Pottawattamie, Sac and Wright.

In 2011, MidAmerican Energy added 593.4 megawatts of new wind-powered generation to its existing wind portfolio in Iowa. The projects included the 443.9-megawatt Rolling Hills wind project, located in Adair, Adams and Cass counties; the 119.6-megawatt Laurel wind project, located in Marshall County; and the 29.9-megawatt Pomeroy wind expansion project, located in Pocahontas and Calhoun counties. The three projects consist of 258 wind turbines.

In 2012, MidAmerican Energy completed a 406.9-megawatt wind expansion project in Iowa that included the 105.6-megawatt Vienna wind project, located in Marshall and Tama counties; the 200.1-megawatt Eclipse wind project, located in Guthrie and Audubon counties; and the 101.2-megawatt Morning Light wind project, located in Adair County. The three projects consist of 176 wind turbines. In 2012, MidAmerican Energy was recognized with the Platts Global Energy Green Energy Supplier of the Year Award for its wind expansion projects.

Current Projects

MidAmerican Energy's Wind VIII project was announced in May 2013. The project will add up to 1,050 megawatts of wind generation in Iowa by year-end 2015 in five Iowa counties – Grundy, Madison, Marshall, O’Brien and Webster. In October 2014, the Wind IX project – which will add up to 162 megawatts of new wind generation in Adams and O’Brien counties – was announced. When both projects are complete, MidAmerican Energy will have approximately 3,500 megawatts of wind generation capacity in Iowa – enough to power the equivalent of more than 1 million average Iowa households.

MidAmerican Energy plans to begin construction in the spring of 2016 on the Ida Grove and O’Brien wind farms, which will add up to 552 megawatts of wind generation capacity to the existing fleet. The project is scheduled to be completed by the end of 2016. Plans call for approximately 134 turbines and up to 301 megawatts of generation capacity at the Ida Grove wind farm, and approximately 104 turbines and 250 megawatts of generation capacity at the new O’Brien wind farm.

Wind Energy Resources


From the Ground Up

Watch the following video to see how we're building our energy future, one turbine at a time.