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Le show forum wood of Marvejols presents an automatic wood heating network in Lozère

Interview with Claude De Sousa, exhibitor at Forum Bois 2010: A heat network and supply platform unique to Aumont-Aubrac

Commissioned just a few months ago, the automatic wood-burning boiler of SARL Tec ENR in Aumont-Aubrac heats, through a buried heat network, the buildings of SA Gémarin, the dryers of the Gaillard Rondino company, the multipurpose room, the offices of the Community of Communes, the gendarmerie, as well as two main houses.

Back on the implementation of this project with Mr. Claude De Sousa, plumber-heating, who carried out the installation.

CCI: What is behind this project?

C.DS: This project was born following the request for repair of the heating system of the workshops and administrative offices of Gemarin and Gaillard-Rondino. They wanted a renewable energy heating system. So I offered them a common wood boiler where the idea of ​​creating a central boiler with a heat network using as fuel their waste wood.

It is by asking the authorizations of roads for the works that the project aroused the interest of the elected officials. He then took another dimension by integrating communities into the project.

CCI: Can you briefly describe the heat network that you have put in place in 2009?

C.DS: The heat network is separated into two parts, a very high temperature part for feeding wood driers and the second part for heating supply of connected buildings.

CCI: What power does this boiler room represent? Does it work today at full speed?

C.DS: The power of the wood boiler and 1 MW, so far it turns at 80% of its capacity, because the gendarmerie is not yet connected. As soon as it is connected, it will operate at full power.

CCI: How is the procurement organized?

C.DS: The supply and ensured by the related wood of companies Gaillard-Rondino and Hermabessière. A supply platform has been created near the boiler room. It consists of a storage shed that allows for a dry and quality fuel to optimize the installation, and a tarmac area for storing wood ready to be crushed. The platform is also covered by 1500 m2 photovoltaic panels.

CCI: Is there a risk of raw material supply disruption?

C.DS: No because the boiler's needs are 1000 tons per year, while the Hermabessière and Gaillard-Rondino companies produce respectively 3000 and 6000 tons of residues and wood chips per year. Another sawmill also feeds the platform, it is the BDL Sarl of Serverette. There is therefore a production potential that is still unexploited.

CCI: So the supply platform can be used to sell wood chips?

C.DS: Absolutely, that's already the case. The platform currently produces 3000 tons of wood chips (in addition to the needs of the installed boiler room). These 3000 tonnes are crushed by the company Bois Energie de la Canourgue, whose leader is Mr. Régis Clavel. Platelets are calibrated, dried and dusted, which allows to obtain a fuel that can be sold to individuals with small boiler.

CCI: What are the difficulties that need to be faced to put such a project in place? What are the advantages ?

C.DS: The main difficulty is the supply of quality energy resources. It is also essential that there is a proximity between the boiler room and the heated buildings, otherwise the project may be more complex to implement, energy-consuming and not very relevant ecologically and economically. The advantages are the long-term stability of the cost of energy and the existence of financial support for the realization of automatic wood-burning boiler projects.

CCI: So you have benefited from public competitions. What are they ?

C.DS: We received financial support from the Communities (Europe, State, Languedoc Roussillon Region).

CCI: In the end, is this achievement transferable elsewhere?

C.DS: Yes of course. A feasibility study is still strongly recommended for projects of this magnitude, it will indicate whether the realization is necessary and above all profitable for the potential customers.

More: the lounge forum wood of Marvejols or visit the forum heating and insulation


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