Breton biogas plant to be extended by 500 kW

Together with its French partner WELTEC Agripower, German biogas plant manufacturer WELTEC BIOPOWER is currently working on an extension AD project in Iffendic, Brittany, France.

The biogas plant in Iffendic had already been built back in 2014, and now its capacity is being doubled. The biogas plant currently generates 500 kW a day, enough to supply almost 1,000 households.
Weltec biopower facility
Apart from the needs-oriented planning and the high quality of the AD plant, the smooth rollout of the initial construction project was a key reason why the operator Samuel Morand decided to entrust WELTEC with this follow-up project.

“Our great experience and the close coordination of all processes with our project partner WELTEC Agripower played a key role in this achievement “, says Alain Priser, who oversees the business in France at WELTEC. Thus, the expanded plant went online after a building time of only a few months.

Samuel Morand already had the idea of extending the plant when the original biogas plant was being built. However, as he only had a limited amount of cattle manure, pig manure, whole crop silage, cereal debris and apple pulp at his disposal, he initially decided to implement just one 2,625-m3 stainless-steel digester and a 250-kW CHP. Nevertheless, WELTEC proactively designed the other plant components, such as the dosing feeder and the pumps, for the double plant size. The robust input system MULTIMix was also implemented in such a way that it can now easily supply a second digester. The MULTIMix ensures efficient shredding of long-fibre and sticky substrates such as cattle manure and whole crop silage, thereby enabling use of the full energy potential.

Over the past years, the operator has successfully enlarged his agricultural business and now has a greater amount of cattle and pig manure at his disposal. Moreover, an apple juice manufacturer is now able to supply Morand with more waste from his production. This increase in the available substrate forms the basis for the plant extension by an additional 2,625-m3 digester and an additional 250-kW CHP.

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