ALLETE Clean Energy, a unit of US energy company ALLETE Inc (<a href="https://www.nyse.com/quote/XNYS:ALE" target="_blank">NYSE:ALE</a>), has offloaded a 70-MW wind project in Wisconsin to Chicago-based Invenergy, which will install the plant and then re-sell it to utility WEC Energy Group (<a href="https://www.nyse.com/quote/XNYS:WEC" target="_blank">NYSE:WEC</a>).