Gaylord National Harbor Resort and Convention Center, owned by Ryman Hospitality Properties and run by Marriott International, is the central pillar of a 42-acre National Harbor development project along the Potomac River in Prince George’s County, Maryland. At 2.4 million square feet, it is the largest non-gaming, combined hotel and convention center on the Eastern Seaboard, encompassing 2,000 guest rooms, over a half-million square feet of convention and meeting space, a 19-story glass atrium, seven restaurants, and a 20,000-square-foot spa.
Powering this impressive structure is no simple task. Gaylord National Harbor consumes a tremendous amount of energy, with three utility feeds, an electrical lineup 90 feet long, five 700 HP boilers, and four 2000-ton chillers. Ten years after the resort opened in 2008, Unison Energy worked with Ryman and Marriott to install a more efficient energy solution — a combined heat and power (CHP) plant that functions as a microgrid, the largest of its kind in Maryland.