France – Technical building-inspection services – SYNERGIE - LE MANS - Mission CSPS

The public service delegation for the operation of the SYNER'GIE heat network was awarded in 2016 to DALKIA by LE MANS METROPOLE. To date, the heat network extends over approximately 50 km and supplies more than 210 substations located in the cities of Le Mans and Allonnes. The newly validated Amendment 4 by the delegating authority will allow this network to be extended by more than 20 km and to supply nearly a hundred new substations by 2029. This development will be accompanied by the construction of a new 16 MWth gas-fired boiler, the installation of a hydro-accumulation system, and the construction of a workshop at the existing Bords de l'Huisne boiler plant. The 2026 work programme envisages the extension of the urban heat network over a total length of approximately 5 km, the installation of the hydro-accumulation system, and the construction of the workshop.