ISO 50001:2018 is a set of guidelines for businesses to implement, monitor and maintain an Energy Management System (EnMS).
These guidelines help businesses to develop policies so that they can use energy more efficiently, assign and meet objectives related to energy usage and use data to better understand their decisions.
ISO 50001:2018 is the most recent version of the standard, building on the back of ISO 50001:2011 which has now been withdrawn.