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Ahidra-Colsen selected for Bioenergy Factory, biomethane project in Barcelona


14 July 2025

Ahidra-ColsenAhidra would like to thank PreZero for trusting us and awarding the EPC (Engineering, Procurement & Construction) contractor ffor the development of one of the most emblematic circular economy and decarbonization projects in Catalonia: the Bioenergy Factory, promoted by PreZero Spain in Barcelona’s Zona Franca.

The facility will process 32,500 tons of industrial and commercial organic waste per year to produce 25 GWh of renewable biomethane, enough to supply the annual energy needs of 12,000 people. The biomethane will be injected directly into the natural gas grid, contributing to decarbonization and clean energy development.

Ahidra will be responsible for designing and executing the following process lines:

 

✔️ Anaerobic digestion

✔️ Digestate treatment

✔️Solid-liquid separation


​​​​​​​​​​​​​​This project is a clear milestone in advancing urban decarbonization and creating a truly circular and sustainable energy model in Catalonia.




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