Energy audits allow knowing the energy-consuming equipment of a given installation, which leads to offer energy-efficient measures which result in energy bills reduction, maintaining or even improving the performance of the installation.

Energy audits are mandatory for companies with an annual energy consumption over 500 eto ( equivalent ton of oil ) (SGCIE – Dec. Law 71/2008 of 15 April) and non-SME companies (Decree-Law no. 68-A / 2015, April 30th).