Recovering Wastewater Heat for Aquatic Centre

Heat from wastewater (water from baths and showers, washing machines, etc. and normally having a temperature between 13 and 20°C) is recovered by means of an 80-metre long heat exchanger installed at the base of the wastewater network adjacent to the Aquatic Centre (bigger version of the image). The calories are transported by a heat transfer fluid to a heat pump installed in the Aquatic Centre boiler room.

Degrés Bleus uses a renewable energy that is readily available in urban environments: heat from wastewater. By opting for this green energy source, the city of Levallois is reducing its energy consumption for the maintenance of the temperature of the Aquatic Centre pools by 24% and its greenhouse gas emissions by 66%. Degrés Bleus is currently being installed, and then it will be maintained for ten years by Lyonnaise des Eaux, together with BPR Europe and BPR Technologies.