The Bishop Hill II project is located in Henry County, in the north of the state, and is currently under construction. It is expected to come online in the fourth quarter.
Bishop Hill II is part of the Bishop Hill Wind Energy Centre. A 20-year PPA for the development is in place with Amren Energy.
Speaking about the deal, Greg Abel, chairman, president and CEO of MidAmerican, said: "Wind energy is a renewable generation source that meets current and future energy needs in an environmentally efficient and cost-effective manner. The Bishop Hill II wind project fits our model of investing in the renewable energy sector."