Packaged rooftop equipment represents the highest market share of the commercial HVAC market. This equipment has traditionally not been designed for efficiency, but rather for lowest first cost. In 2011, the Department of Energy announced a high-efficiency rooftop program. The Daikin McQuay Rebel line was the first to meet the DOE requirements, with an energy profile over 70% better than required by code. Units have approximately a 20-30% higher first cost versus standard efficiency rooftop units and are aimed for institutional and commercial clients interested in lower total cost of ownership. Units are available in capacities up to 12 tons.