DCDM1: Lessons Learned from the World's Most Energy Efficient Data Center

Research output: NRELPresentation


This presentation discusses the holistic approach to design the world's most energy-efficient data center, which is located at the U.S. Department of Energy National Renewable Energy Laboratory (NREL). This high-performance computing (HPC) data center has achieved a trailing twelve-month average power usage effectiveness (PUE) of 1.04 and features a chiller-less design, component-level warm-water liquid cooling, and waste heat capture and reuse. We provide details of the demonstrated PUE and energy reuse effectiveness (ERE) and lessons learned during four years of production operation. Recent efforts to dramatically reduce the water footprint will also be discussed. Johnson Controls partnered with NREL and Sandia National Laboratories to deploy a thermosyphon cooler (TSC) as a test bed at NREL's HPC data center that resulted in a 50% reduction in water usage during the first year of operation. The Thermosyphon Cooler Hybrid System (TCHS) integrates the control of a dry heat rejection device with an open cooling tower.
Original languageAmerican English
Number of pages41
StatePublished - 2018

Publication series

NamePresented at Data Center World Global 2018, 12-15 March 2018, San Antonio, Texas

NREL Publication Number

  • NREL/PR-2C00-70433


  • energy reuse effectiveness
  • energy-efficient data center
  • ERE
  • high-performance computing
  • HPC
  • power usage effectiveness
  • PUE
  • TCHS
  • thermosyphon cooler
  • Thermosyphon Cooler Hybrid System
  • TSC


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