Figures compiled by the German Federal Environment Agency show that 150 sites worldwide had achieved BS EN 16001 certification by the start of May.
German organisations lead the way, with 28 certifications for the energy management standard, followed by Sweden (24) and Ireland (17). However, just 10 UK-based sites have so far achieved certification.
BSI launched 16001 in 2009 to help organisations establish the systems and processes to improve their energy efficiency and reduce greenhouse-gas emissions.
The standard specifies the requirements for an energy management system to enable an organisation to develop and implement a policy, identify significant areas of energy consumption and target energy reductions. It can be used in isolation or with other management systems, such as 14001.