Gartner Research

Why the PUE Metric Is Not Enough for Your Data Center

Published: 13 October 2015

ID: G00292393

Analyst(s): Henrique Cecci


PUE is today the de facto standard metric for evaluating data center energy efficiency, but its limitations may mislead CIOs and IT leaders. This research clarifies these limitations and proposes alternatives to more completely evaluate energy efficiency of the data centers.

Table Of Contents


  • Alternative Metrics to PUE
    • Data Center Electricity Bill
    • Computational Capabilities Versus Data Center Energy Consumption
    • Gartner's Idle Energy and Computational Energy Metrics
    • Other Data Center Efficiency Metrics
  • Appendix

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