FEDER - HN - SAS LES GRANDS CHENES - CREATION OF AN INJECTION METHANIZATION UNIT
Kohesio
LES GRANDS CHENES
The natural region of Vexin offers diversified agricultural deposits but still used in methanization: cattle manure, slurry, beet pulp, intermediate energy crops (rye, corn), vegetable oils, cereal dust. The vast majority of these substrates will come from the 3 partner farms in the project as well as neighboring farms and local companies.  90% of the total volume is located within a 20 km radius around the methanization site. Only wheat grains, potato pulp and waste come from a maximum radius of 100 km (200t). This local supply makes it possible to present a very good carbon footprint. A forecast assessment of greenhouse gas (GHG) emissions was carried out with the aim of comparing the GHG impact of the current situation of processing agricultural by-products to the GHG impact of the future situation including the site of valorization of these same by-products. The calculations were carried out using the DIGES software on the basis of 24,600 t of gross inputs allowing a saving of approximately 4,000 tonnes of CO2 eq. In addition to the origin of the deposit, the project leaders wanted to be fully part of the territory by integrating the ecological transition contract of Seine Normandie Agglomération. The project is one of the 26 actions of this ambitious contract since it provides for carbon neutrality of the territory in 2040. This ecological transition contract was signed on February 7, 2020 between the State (State Secretariat attached to the Ministry of Ecological Transition) and the agglomeration.
Greener, carbon-free Europe / Low-carbon economy / Renewable energy: biomass