Profile: Critical Power Exchange, LLC specializes in providing environmental & power backup equipment typically used in computer rooms, data centers and other industrial applications. We specialize in used and refurbished standby backup diesel generators, as well as air-handling equipment, uninterrupted power supply units, power distribution units, chillers, cooling towers and raised access flooring for industrial applications. Surplus 2009 Kohler diesel generator comes loaded with a 3000 gallon base fuel tank and a weather and sound attenuated enclosure.