In one of the U.S. renewable energy market’s biggest deals in a challenging year, Masdar is set to acquire a 50 percent stake in a 1.6-gigawatt portfolio of advanced wind, solar and energy storage projects from EDF Renewables North America. The deal, expected to close later this year, represents a new front in the global renewables collaboration between EDF and Masdar, which to date has largely focused on the Middle East and North Africa.