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Sweden plans to build ‘world’s largest’ BECCS facility
9/4/2025
News
Swedish district energy provider Stockholm Exergi is to construct potentially one of the world’s largest facilities for the capture and storage of biogenic CO₂.
The plant will be capable of removing 800,000 t/y of CO₂, applying a bioenergy with carbon capture and storage (BECCS) approach.
Construction of the SEK13bn ($1.3bn) project, near Värtaverket in Stockholm, has already begun, with the facility expected to be operational by 2028.
Värtaverket already produces heat and electricity from forestry and sawmill residues, such as wood chips and branches.
The investment decision has been made possible through a combination of public support and private purchases of negative emission certificates.
The technology for capturing CO₂ has been in use since the 1970s, and Stockholm Exergi has operated a pilot plant since 2019. It will use a storage method that mineralises CO₂ in seabed bedrock.
The construction of the facility is part of the City of Stockholm’s goal to become a climate-positive area by 2030.
Stockholm Exergi has signed a 15-year commercial agreement for the cross-border transport and storage of 900,000 t/y of CO2 emissions with Norway-based CO2 transport and storage company Northern Lights.
Second phase of Northern Lights CCS project launches
Meanwhile, Northern Lights – a joint venture between Equinor, Shell and TotalEnergies – has announced it is moving moved forward with its second phase, boosting capacity from 1.5mn to over 5mn t/y of CO2.
The first phase of the project is now complete and ready to receive CO2 from industrial emitters. Operations are expected to start this summer, with the first CO2 transportation by ship from Heidelberg Materials’ cement factory in Brevik, Norway and its injection and permanent storage into a reservoir 2,600 metres below the seabed, off the coast of Øygarden, western Norway.
The second phase represents an investment of NOK7.5bn ($700mn) and leverages existing onshore and offshore infrastructure. This expansion includes new onshore storage tanks, pumps, a jetty, injection wells and transport vessels, with start-up expected by 2028.
Stockholm Exergi is the fifth company to commit with Northern Lights for transport and storage of its CO2 emissions, after Heidelberg Materials and Celsio in Norway, Yara in the Netherlands and Ørsted in Denmark.
Aker Solutions, who delivered the first phase of the project in 2024, has also been awarded the contract as technical service provider for phase two. The scope of work will include the engineering, procurement and construction of onshore facilities.
