Green Grid Whitepaper: Data Center Power Efficiency Metrics: PUE & DCiE

[BillP]

Here is a new whitepaper release from The Green Grid:

Abstract: The Green Grid recognizes the importance of establishing metrics for data center
efficiency, and offers guidance on technologies that claim to improve performance-perwatt.
Ideally, these metrics and processes will help determine if the existing data center
can be optimized before a new data center is needed. In the earlier white paper, the
Green Grid supported two related metrics Power Usage Effectiveness (PUE)2 and Data
Center Efficiency (DCE)2,3. Since then PUE has received broad adoption in the industry
but DCE has had limited success due to the misconception of what data center
efficiency really means. As a result, this paper re-affirms the use of PUE but redefines
its reciprocal as data center infrastructure efficiency (DCiE). This refinement will avoid
much of the confusion around DCE and will now be called DCiE.