ISO 50001 (full name: ISO 50001:2011, Energy management systems – Requirements with guidance for use) is a specification created by the International Organization for Standardization (ISO) for an energy management system. The standard specifies the requirements for establishing, implementing, maintaining and improving an energy management system, whose purpose is to enable an organization to follow a systematic approach in achieving continual improvement of energy performance, including energy efficiency, energy security, energy use and consumption. The standard aims to help organizations continually reduce their energy use, and therefore their energy costs and their greenhouse gas emissions.
ISO 50001 was released by ISO in June 2011 and is suitable for any organization – whatever its size, sector or geographical location
The system is modeled after the ISO 9001 Quality Management System and the ISO 14001 Environmental Management System (EMS).