As part of the market response of DSP for the creation of a heat network in Sarrebourg, ENGIE solutions proposed: — The construction of a 5.6 MW biomass boiler room, supplemented by gas additions/runs, – The integration of the 220 KW biomass boiler room of the community of municipality and its connection to the pool, – The purchase of certificates of origin guarantee for part of the consumption of natural gas, – The creation of a network of 8 099 ml and 33 substations, The project therefore provides for the creation of a heat network mainly powered by renewable energy with 27 118 MWh ENR R injected into the grid per year with a mix of 85 %.