This International Standard specifies requirements for establishing, implementing, maintaining and improvingan energy management system, whose purpose is to enable an organization to follow a systematic approachin achieving continual improvement of energy performance, including energy efficiency, energy use andconsumption.
EN ISO 50001:2011 history
2018EN ISO 50001:2018 Energy management systems - Requirements with guidance for use
2011EN ISO 50001:2011 Energy management systems - Requirements with guidance for use (ISO 50001:2011)
EN ISO 50001:2011 Energy management systems - Requirements with guidance for use (ISO 50001:2011) has been changed from EN 16001:2009 Energy management systems - Requirements with guidance for use.