In 2015, the City of Lille, in conjunction with the heating market service provider, launched the "energy correspondents" approach for 37 municipal buildings. The principle: to support and involve municipal officials in monitoring water and energy consumers, analysing them and implementing actions to limit waste without compromising comfort. In partnership with ADEME, the Hauts-de-France Region, Dalkia, Engie and Citeo, this system has made it possible to reduce consumption by -12% in heating, -3% in electricity and -39% in water in 2017-2018. The objective by 2023 is to cover all the traditional estate, i.e. 350 municipal buildings, as part of the new heating market.
This project is one of the nominees for the 28th edition of the Eco Action Trophies, the leading sustainable development competition for local communities, organised by the Les Eco Maires association.