Danish biogas operator Bigadan has inaugurated a new CO₂ facility at Kalundborg Bioenergy, establishing what the company describes as one of the world's first fully integrated commercial value chains for the capture, transport and permanent storage of biogenic CO₂ from biogas.
The facility, which came online ahead of a formal inauguration event on 20 May, captures CO₂ from biogas production fed by agricultural and industrial residues. The gas is then transported for permanent subsea storage in the Danish sector of the North Sea through Project Greensand, directly linking biogas production with offshore geological storage in a single commercial chain.
Bigadan CCO Henrik Iversen said the Kalundborg project represented a shift from demonstration to deployment. "This is no longer a pilot project — it is the beginning of a new industry," he said.
The Kalundborg facility is expected to capture 27,000 tonnes of CO₂ per year. Bigadan also operates an existing CO₂ capture facility in Horsens and has a further site under development in Herning, with the longer-term ambition of deploying capture technology across all its Danish biogas plants.
By 2030, the company is targeting annual capture volumes of up to 200,000 tonnes — roughly equivalent to the yearly tailpipe emissions of 100,000 petrol cars.
Denmark is positioning itself as a potential hub for permanent CO₂ storage in Europe, with the North Sea's geology seen as well-suited to long-term sequestration at scale. Bigadan's Kalundborg project is among the first operations to make that proposition commercially tangible in the biogas sector.
The inauguration was attended by Søren Pind, Chairman of Biogas Denmark, and Martin Damm, Mayor of Kalundborg.
Bigadan inaugurates commercial biogenic CO₂ capture and storage chain in Denmark
