With energy budgets constrained, organizations with major electricity needs have to get creative. Such was the case at the Tokyo Institute of Technology. The university administration had capped power supplies, but the institute required more supercomputing capacity. Thus the idea for the oil-cooled Tsubame KFC was born. The supercomputer employed a liquid immersion cooling solution, called ICEraQ, developed by Austin, Texas-based Green Revolution Cooling. Tsubame KFC was declared by the Green500 list as the most energy-efficient machine of its kind. The system is 50 percent more powerful than an older machine with the same energy footprint.