The Malakoff boiler room is the essential equipment for the operation of the Centre Loire heat network. Built instead of the old obsolete facility, it is mainly supplied by the heat from the waste incineration of the Centre Technique de Valorisation des Déchets (CTVD) de la Prairie de Mauves and by natural (untreated) and local wood. Natural gas-fired boilers provide the complement. It serves the city centre, the north of Nantes, and the east and centre of the Ile de Nantes. In summer it serves the entire Centre Loire network.