On 6 November, the European Commission published detailed guidance on the implementation of the EU Energy Efficiency Directive. The purpose of the guidance is to help Member States to understand how the Directive should be implemented into national law. It explains some of the more complex provisions of the Directive, such as the rules on public procurement, energy audits and co- generation. The EU Member States are required to implement the Energy Efficiency Directive into their national laws by June 2014.
The Guidance is available here: http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=COM:2013:0762:FIN:EN:PDF