Energy management system (EnMS)

Energy management systems (EnMSs) have emerged over the last two decades as a proven best practice methodology to ensure proactive and effective energy management. EnMSs offer a structured and systematic approach for integrating energy efficiency into an enterprise management culture and daily practices, through the provision of: 

  • A framework for understanding energy use and consumption. 
  • Action plans to continually improve energy performance, including energy systems and production processes. 
  • Metrics to track and quantify energy performance against a baseline of energy consumption. 
  • Data and documentation to sustain and demonstrate energy performance improvements over time.

Taking stock of the good results achieved through national EnMS standards in various countries, UNIDO started to promote the development of an international EnMS standard in 2006. In UNIDO’s view, an internationally recognized standard would be particularly helpful to developing countries and economies in transition that still lack policy frameworks and mechanisms to promote and achieve improved energy efficiency in the industrial sector. UNIDO initiated the process that subsequently led to the publication on 15 June 2011 of the international standard ISO 50001:2011, Energy management systems – Requirements with guidance for use. 

ISO 50001:2011 offers a framework for organizations to: 

  • Establish an energy policy; 
  • Allocate resources and create teams to effectively implement an energy management system; 
  • Conduct energy reviews; 
  • Identify opportunities for improving energy performance; 
  • Establish baselines and energy performance indicators for tracking progress;  
  • Set energy performance improvement targets;  
  • Implement action plans to achieve those targets.

The UNIDO programme on EnMS implementation in industry combines capacity-building and pilot implementation. It builds understanding, expertise and skills of consultants and enterprises for implementing EnMSs in line with ISO 50001 and provides expert advisory services needed to ensure implementation.