Biogaz Château Gontier


Biogaz Château Gontier

Biogaz Château Gontier (1 189 kW) – Château Gontier (53)

Realised by Naskeo Environment:

  • Preliminary design
  • Establishment of the ICPE file
  • Monitoring and integration of the spreading plan and the building permit
  • Detailed studies
  • Request for sanitary approval
  • Project management of the works

– Project company: Biogaz de Château Gontier (53)

– Deposits: 37 000 tonnes per year including

20 000 tonnes of manure

2 000 tonnes of manure

2 000 tonnes of green waste per year

5 000 tonnes of green waste


– Type of pre-treatment: Sanitation of animal by-products.

– Biogaz recovery: Cogeneration of 1 189 kW.

– Digestate recovery: Phase separation, remote storage of solid digestates and in situ storage of the liquid digestates in lagoons.

– Method used: Completely mixed.

– Thermal recovery: Heat recovery in the Perreault cheeese factory, Bongrain Group, adjacent to the site.

– Grants: 15% including ERDF (European Regional Development Fund), ADEME (French Agency for Environment and Energy Management), Pays de la Loire Region

CO2 emissions avoided per year: 4 965 t of CO2 avoided per year. Equivalent to the electricity consumption of 1 419 families.

– Status of the project: Start of construction scheduled for September 2014.