Cooling a supercomputer consumes more electricity than is required to run the machine, even machines as powerful as the IBM Blue Gene/P—called Intrepid—at the U.S. Department of Energy's Argonne National Laboratory. Though Intrepid is one of the fastest and most energy-efficient computers in the world, researchers at Argonne's Leadership Computing Facility (ALCF) are continually looking for ways to further reduce the power needed to operate the machine.