Co-development of and co-investment in biomethane projects

Drawing on many years' experience, we help you develop your projects, from compliance with the relevant regulations right through to operation.


Operating and maintaining

Since 2014, we have helped optimize the performance of biomethane plants. To do this, we offer services that leverage all operational drivers requiring concurrent management.



As organic waste experts, we bring together waste producers and short-circuit plants to recycle waste and benefit the country as a whole.


Gâtinais Biogaz

Château renard (45)

Feedstock sources

21 000 tonnes per year


Liquid manure / Manure


Sewage sludge


160  Nm³/h of biomethane

Founded in 2005, Gâtinais Biogaz was one of the first projects led by an agricultural collective. Fully operational from 2012, this project enables businesses to diversify their income streams and to recycle more livestock waste into organic fertiliser that is more easily absorbed by plants and is less odorous. The biogas was originally converted into electricity and heat (600 kW cogeneration) but has been purified into biomethane since 2016. The plant injects 160 Nm³/h of green gas.

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Households supplied with gas
Gas-powered buses

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Call us

Need help or have a question about your biomethane project? We're available from 8 am to 6 pm, Monday to Friday. Feel free to get in touch if you need our help.

+33 (0)1 57 21 34 70

Come and see us

Want to meet us in person? 
You can find us at 52 rue Paul Vaillant Couturier - 92240 Malakoff or at 3 Rue Galilée - 44 340 Bouguenais

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