Iowa Utility Repowering Wind Turbines

Oct. 2, 2017

MidAmerican Energy is repowering approximately 1,000 megawatts of its 4,000-megawatt wind energy portfolio. The machines that MidAmerican is rehabilitating were built about 10 years ago, and the utility plans to replace their gear boxes and install longer and more powerful blades. Work on the project began last month and is expected to be completed by late 2020. MidAmerican estimates that the new turbines will generate between 19% and 28% more power than those they replace.