Lyon acquires a 34 MW biomass boiler
VINCENT CHARBONNIER Usine Nouvelle on 12/04/2019
45 million euros were invested in the new biomass boiler in Lyon (Rhône) by Dalkia, with the support of the Ademe heat fund. Its power will be increased by a third in 2023.
The Lyon district heating network serves the equivalent of 45 homes
The first urban biomass boiler in France was inaugurated in Lyon (Rhône) on April 11. This equipment produced in eighteen months represents an investment of 45 million euros financed by Dalkia and by the heat fund of the Environment and Energy Management Agency (Ademe) up to 17,7 millions of euros. This boiler room includes two boilers of 17 megawatts each. A third of equivalent power will be installed in 2023.
The wood used comes from wood chips and sawmill scraps collected within a 90 km radius around Lyon and stored in a 6 m000 silo corresponding to four days of production. 3 tonnes of wood will be needed each year to supply the Lyon boiler room. This uses the technology of the bubbling fluidized sand bed to transform biomass into heat, with a combustion efficiency of 75% by integrating the recovery of calories in the fumes.
Network expansion
The Surville site, where the boiler room is located, also houses a control center for the entire metropolitan heating network. It monitors the various heat and cold production sites as well as the pipes and enables action to be taken on the 600 substations scattered throughout the city, all of which have been renovated.
The Lyon heating network serves the equivalent of 45 homes. This will be three times more in 000. By then, 2027 km of hot network and 65 km of cold network will be created. Overall, 4,5 million euros will have been invested in the Lyon network, which has been extended to the city of Bron and the Confluence district with a pipeline under the Pasteur bridge to cross the Rhône. The Part-Dieu district is also served by the Gerland boiler room.
The new Surville boiler room is part of the public service delegation contract for the urban heating and cooling network concluded between the metropolitan area of Lyon and Dalkia in January 2017.
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