On Wednesday 17 February, Evergaz, one of France’s leading biogas players, welcomed the President of the Regional Council, Mrs Christelle Morançais, Mrs Céline Broquin-Lacombe, Sub-Prefect in charge of economic recovery for the Prefect of the Mayenne department, and Mr Philippe Henry, President of the Pays de Château-Gontier Community of municipalities, to the Biogaz anaerobic digestion unit du Pays de Château-Gontier (Mayenne, France), to lay the first stone of its biogas scrubber. With this scrubber, the site will provide a comprehensive range of green energy sources: green electricity, green heat, bioNGV, and now biomethane. The Biogaz du Pays de Château-Gontier facility will therefore become one of the pioneering sites in France to offer four energy recovery methods.
Once the required approvals and planning permission were secured, Mrs Christelle Morançais, Mrs Céline Broquin-Lacombe, and Mr Philippe Henry, layed the first stone of a scrubber with a nominal flow rate of 392 Nm3/h of biomethane, aiming for initial biomethane injection into the network operated by GRDF by September 2021. On this occasion, Biogaz du Pays de Château-Gontier and AB Energy also signed the scrubber supply agreement, in the amount of over €1 million. This biomethane injection made possible by the scrubber will enrich the range of green energy sources already generated by the Biogaz du Pays de Château-Gontier site: green electricity, green heat, bioNGV.
The facility prevents 4965 tpy of CO2 emissions and enables the spreading of natural fertilizer on the fields of 63 local farms, covering 4500 ha.
The development of the Château-Gontier sur Mayenne site perfectly illustrates the joint project of Evergaz and Meridiam, who joined together in 2018 in the form of an investment platform to finance and develop biogas projects in France. With this investment, Meridiam, an independent benefit corporation specialising in the development, financing, and long-term management of sustainable public infrastructure, confirms its clear commitment to the ecological transition of territories, as the Biogaz du Pays de Château-Gontier facility, commissioned by Evergaz in 2018, has been designed as a territorial project. A perfect example of circular economy, the facility recovers the organic matter produced locally by farmers, agri-food industries or the community. It supplies the equivalent of 3200 homes with green electricity, for a treatment capacity of 35 000 tpy of waste. The green heat generated by the site is used, via a heating network co-financed by ADEME, by the production process of the Perreault cheese factory located near the unit. Initially generating electricity and heat from organic waste via cogeneration, Evergaz also built a bioNGV station open to the public in direct proximity to the unit, making it possible to supply the vehicles of the Pays de Château-Gontier community of municipalities and the lorries of the Breger transport company with green fuel.
By signing an agreement with GRDF for the injection of the biomethane produced by Biogaz du Pays de Château-Gontier into the natural gas network, Evergaz provides the region an anaerobic.
The anaerobic digestion unit visited by the President of the Regional Council enables the local production of green, circular and non-intermittent energy, while offering numerous positive externalities (reduction in CO2 emissions, preservation of agriculture, etc.). It also provides a solution for the recovery of organic waste and the production of a natural fertilizer substitutable for chemical fertilizers.
The Biogaz du Pays de Château-Gontier site and its development in biomethane are financed by a banking pool consisting of Arkéa Banque Entreprises et Institutionnels, Banque Populaire Grand Ouest, Caisse d’Epargne et de Prévoyance Loire-Centre and the ‘BRIDGE’ infrastructure debt fund managed by Edmond de Rothschild Asset Management (‘EDRAM’).
