This document specifies water usage effectiveness (WUE) as a key performance indicator (KPI) for quantifying the water consumption of a data centre during the use phase of the data centre life cycle.
WUE is a simple method for reporting the water intensity of the data centre operating. By reporting water consumption, it is possible to present the data centre's resource effectiveness.
a) defines the 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; and
e) provides information on the correct interpretation of the WUE.