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Sustainability Lessons from the World’s Most Energy Efficient Data Center
Keywords: Cooling, Efficiency, Liquid
In this presentation we will discuss our holistic approach to design energy efficient data centers, which led to the world’s most energy efficient data center, operated at the U.S. Department of Energy’s National Renewable Energy Laboratory. The data center has a trailing twelve month average PUE of 1.04 and features a chiller-less design, component- level warm-water liquid cooling, and waste heat capture and re-use. We provide details of the demonstrated PUE and ERE, and lessons learned during four years of production operation. Finally, we discuss new efforts to dramatically reduce the water footprint in the data center and a new project to demonstrate a proof of concept carbon- free data center of the future, using renewable energy and automotive-scale hydrogen fuel cells.
Steven W. Hammond, Computational Science Director
National Renewable Energy Laboratory
Golden, CO

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