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December 2012

Global taskforce for datacentre energy efficiency pick three new metrics

A global taskforce comprising government authorities and industry body The Green Grid have selected three new metrics to improve a datacentre’s energy-efficiency. The metrics are Green Energy Coefficient (GEC), Energy Reuse Factor (ERF) and Carbon Usage Effectiveness (CUE). GEC, ERF and CUE will now join the metric Power Usage Effectiveness (PUE), which is currently used by datacentre managers globally. PUE was developed by the Green Grid in 2011.  PUE is determined by dividing the amount of power entering a datacentre by the power used to run the computer infrastructure in it. Although used widely, experts have pointed out datacentre cases where PUE does not work. The new performance metrics by the global taskforce aim to help datacentre operators understand their facilities’ energy performance quickly and easily. The taskforce included the US Department of Energy’s Advanced Manufacturing Office and Federal Energy Management Programs; the US Environmental Protection Agency’s Energy Star programme; the European Commission Joint ...

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