Like all ISO standards, and voluntary standards in general, ISO 50001 is not mandatory. As such, it is not included in the list of mandatory standards. Nevertheless, it is recommended that you use it to formalize your energy management approach, as the professionals who took part in drafting it have agreed to define, by consensus, the best practices for achieving the desired effect: improved energy performance. The standard defines energy performance as ” measurable result(s) related to energy efficiency, energy use and energy consumption “.
