As part of the response to the DSP market for the creation of a heating network on the Côte Sainte Catherine (commune of Bar-Le-Duc), ENGIE Cofely proposed: The creation of a biomass boiler room, complemented by a gas boost/recourse, the renovation and extension of the underground distribution network to the various subscribers, the renovation and creation of substations of exchange among subscribers, the implementation of remote management of boilers, network and substations. The project therefore envisages the transition to renewable energies with the installation of a biomass boiler room with 2 boilers on the ground of the current boiler room. The current boiler room will be updated and embellished. The network will be developed with the addition of the new EHPAD and the Health Home. The substations will be renovated with the installation of exchangers and the addition of remote management.