Terra-Gen Power (Terra-Gen), an affiliate of ArcLight Capital Partners and Global Infrastructure Partners, signed a purchase and sale agreement with NRG Yield for the sale of its 947-MW Alta Wind I-V, X & XI, and Realty projects (Alta Wind). Terra-Gen expects to close the transaction in the third quarter of 2014, pending customary closing conditions, including the receipt of regulatory approval by FERC and the U.S. Department of Justice and the Federal Trade Commission. The sale of Alta Wind will divest Terra-Gen of its remaining phases of the Alta Wind Energy Center (AWEC). Terra-Gen originally acquired the AWEC development platform from Allco Finance in June 2008.