BS EN 50600-4-9:2022

This standard BS EN 50600-4-9:2022 Information technology. Data centre facilities and infrastructures is classified in these ICS categories:

• 35.020 Information technology (IT) in general
• 35.110 Networking
• 35.160 Microprocessor systems

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.