nsBAS EN 50600-4-8:2024

This document specifies the Carbon Usage Effectiveness as a KPI to quantify the CO2 emissions of a data centre during the use phase of the data centre life cycle. This document a) defines the Carbon Usage Effectiveness (CUE) of a data centre, b) introduces CUE 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 CUE.