Equity Interest in Wind Power Projects

Sale of equity interest in Atlantic Power Warehouse, more described below:
TerraForm Private Holdings, LLC, holds the Equity Interests in TerraForm Private, LLC, which in turn holds certain indirect interests in a group of fully constructed and operating wind power projects with approximately 806 MW of capacity. The Equity Interests, which were originally acquired from Atlantic Power in June 2015,11 consist of two types: (i) TP PREPP Units, entitling the holder to dividends as a preferred stockholder, and (ii) Common Units, which provide a managing interest, but a subordinated economic stake. The Seller owns all of the Common Units, as well as 11.7% of the outstanding PREPP Units, with the remainder of the PREPP Units held separately by the Buyer and John Hancock.