BS EN 50600-4-2:2016+A1:2019 specifies the Power Usage Effectiveness (PUE) as a Key Performance Indicator
(KPI) to quantify the efficient use of energy in the form of electricity.Cross References:IEC 62052EN 62053EN 50600-1IEC 62053EN 62052EN 50600-4-1:2016EN 50600-4-3EN 50600-2-4EN 50600-2-3IEC 13273-2EN 50600-2-1TR 50600-99-1EN 50600-2-5ISO 26382EN 50600-3-1EN 50600-2-2:2014Incorporates the following:Amendment, March 2019; Corrigendum, March 2017