EDP Renewables, through its subsidiary Horizon Wind Energy, has entered into a 20-year Power Purchase Agreement with Tennessee Valley Authority (TVA) to sell 115 megawatts (MW) of renewable wind energy from the first phase of its Pioneer Prairie Wind Farm located in Mitchell and Howard Counties in Iowa.

Horizon Wind Energy, also has a long term power purchase agreement in place to sell 102.3 MW of renewable energy from the second phase of Pioneer Prairie Wind Farm to AmerenUE.