Is Sandia National Lab's Red Sky Really Able to Deliver a PUE of 1.035?

Perspectives (Nov 22 2009) Supercomputer

1. Sometime back I whined that Power Usage Efficiency (PUE) is a seriously abused term: PUE and Total Power Usage Efficiency.  But I continue to use it because it gives us a rough way to compare the efficiency of different data centers.  It’s a simple metric that takes the total power delivered to a facility (total power) and divides it by the amount of power delivered to the servers (critical power or IT load).  A PUE of 1.35 is very good today. Some datacenter owners have claimed to be as good as 1.2.  Conventionally designed data centers operated conservatively are in the 1.6 to 1.7 range.  Unfortunately most of the industry has a PUE of over 2.0, some are as bad as 3.0, and the EPA reports the industry average is 2.0 (Report to Congress on Server Data Center Efficiency). A PUE of ... (Read Full Article)

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