Alcance
This document specifies power usage effectiveness (PUE) as a key performance indicator (KPI) to quantify the efficient use of energy.This document:a) defines the PUE of a data centre;b) introduces PUE measurement categories;c) describes the relationship of this KPI to a data centre’s infrastructure, information technology equipment and information technology operations;d) defines the measurement, the calculation and the reporting of the parameter;e) provides information on the correct interpretation of the PUE.PUE derivatives are described in Clause 9.
