NRG Energy and MGM Resorts International completed installation of the world's largest rooftop solar array on a convention center. Covering approximately 20 acres atop the Mandalay Bay Resort and Casino, the 6.4-MW photovoltaic array will produce enough electricity to power the equivalent of approximately 1,000 U.S. homes annually and is the first of its kind on the Las Vegas Strip. NRG financed, constructed, owns and operates the installation for MGM Resorts at Mandalay Bay Resort and Casino. Through a PPA, Mandalay Bay Resort will purchase all the electricity generated by both solar arrays.