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PU is an exaggerated pronunciation of pew, an interjection that is appropriate when you smell something foul.
What is pue mean? In the context of data centers, PUE stands for Power Usage Effectiveness. It is a measure of the total facility power consumption in relation to the power needed to run strictâ¦ly IT equipment. To calculate PUE, you take the total facility power draw and divide it by the IT load. The average PUE is generally believed to be 2.0, meaning an IT load (servers, storage, etc.) of 10 kW requires an additional 10kW of power to keep cool, run lights, and electricity lost through the inefficiencies of the power system.