Move Over Pue

| CTO Edge (Nov 17 2009) Power and Cooling

1. So maybe EUE is PUE after all, but different. On Nov. 12, the EPA released the finalized direction for its new Energy Star for Data Centers program. This is the followup to the Sept. 29 presentation, which I first summarized last month. As the EPA’s Energy Star for Data Centers program progresses toward finalization, it has decided to base the EUE metric (Energy Usage Efficiency) on The Green Grid’s PUE (Power Usage Efficiency) metric, but with a twist. Instead of measuring power in KW, it will be using “energy” as measured in BTUs or more specifically, millions of BTUs, used over a 12- (or 11-) month period. BTU, not KW -- confused? What, your data center metering (assuming that you are doing metering) only measures volts, amps, KVA and KW? You aren’t burning gas, oil or coal as the primary source of electricity? (Read Full Article)

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