BS EN 50600-4-9:2022

1   Scope This document specifies the Water Usage Effectiveness (WUE) as a KPI for quantifying the water consumption of a data centre during use phase of the data centre life cycle. This document:

a) defines the Water Usage Effectiveness (WUE) of a data centre;

b) introduces WUE 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 WUE.