PRINCETON, N.J.--(BUSINESS WIRE)--NRG Yield, Inc. (NYSE:NYLD, NYLD.A) announced it has entered into an agreement with NRG to acquire 75% of the equity interests in a portfolio of wind projects consisting primarily of assets acquired by NRG from Edison Mission Energy in April 2014 (EME Wind Portfolio) for $210 million in total cash consideration, subject to working capital adjustments, plus assumed project debt of approximately $145 million and tax equity of approximately $97 million (as of Augu