Mandatory energy auditing of large companies


The Walloon government decree of 8 September 2016 establishes a mandatory audit for large companies every 4 years, by transposing Article 8 of Directive 2012/27/EU of the European Parliament and of the Council of 25 October 2012 on energy efficiency.

ICEDD has been accredited by the Walloon Public Service and Bruxelles-Environnement.

Titre de la référence


The energy audit aims to:

  • Present a report on the energy efficiency of the audited company under real operating conditions;
  • Identify potential improvements;
  • Assess the resulting energy savings;
  • Prioritise improvement measures: assess the appropriateness of an investment intended either to use energy more rationally or to use high-quality renewable energy systems or cogeneration.


The energy audit, which is mandatory for large companies, is carried out in two main key steps:

  • Creation of a distribution table of energy consumption (flow analysis, definition of indicators, etc.);
  • Development of an action plan with identification and assessment of energy performance improvement measures.

In particular, ICEDD carried out the mandatory audits of: EVS Broadcast Equipment, VIVAQUA, FN Herstal, Browning International, PolyOne, UCL Namur University Hospital (sites at Saint-Elisabeth, Mont-Godinne and Saint-Vincent in Dinant), Clinique des Frères Alexiens, CHM Mouscron, etc.

Our references