News Analysis

Warm-Water Cooling Translates to Data Center Efficiency

The U.S. Department of Energy’s National Renewable Energy Laboratory (NREL) will soon complete its new high-performance computing (HPC) data center and Energy Systems Integration Facility (ESIF) offices and laboratories in Golden, Colorado. The data center will use warm-water liquid cooling, with 75°F water pumped in from cooling towers to achieve a power usage effectiveness (PUE) rating of 1.06.

The temperature of the cooling water is set higher than is conventional, allowing the use of the cooling towers instead of compressor-based mechanical chillers. The water will exceed 100°F by the time it leaves the data center; it will then provide the primary heat source for the ESIF offices and labs and will also run under outdoor walkways to melt snow and ice.

Published March 26, 2013

Weaver, E. (2013, March 26). Warm-Water Cooling Translates to Data Center Efficiency. Retrieved from