Here we have collected the most common questions and answers about our BECCS facility in Energihamnen - how carbon capture works, what it means for the climate and why it is an important step in achieving climate goals.
General questions
Even if global emissions are reduced, we still need to remove carbon dioxide from the atmosphere to meet the climate goals. With our planned carbon capture facility, Stockholm will be one of the first cities in the world to capture carbon dioxide at scale – all while continuing to provide reliable district heating and cooling to the city. That’s quite remarkable.
When Stockholm Exergi generates heat and electricity using biomass – made from forestry residues – the carbon dioxide released during combustion is the same CO₂ that was previously absorbed by trees through photosynthesis.
By capturing and storing that carbon permanently, we create carbon removals, also known as negative emissions. These removals reduce the amount of CO₂ in the atmosphere, making a meaningful contribution in the fight against global warming.
The full-scale facility will have the capacity to capture 800,000 tonnes of biogenic carbon dioxide every year. That’s more than the annual fossil emissions from all road traffic in Stockholm.
The project is supported by three financial pillars:
The voluntary market already makes up the largest share of the total financing.
No. Carbon capture is a separate business area within Stockholm Exergi. The BECCS facility will finance itself independently and carry its own costs. District heating customers will not be affected.
Many companies are reducing their emissions – and that’s the first step. But in some industries, such as agriculture or chemicals, it’s technically or economically impossible to reach zero emissions. That’s where carbon removals come in – helping to neutralise the residual emissions that remain after all other measures have been taken.
The facility
Right now the project is in construction with key milestones completed:
We are doing everything we can to minimise disturbance for those living near the site.
We want the new facility to blend into the city and serve as a visual connection between southern Värtan and Norra Djurgårdsstaden.
Yes, some noise is expected during construction. However:
Some sources of noise will exist, but they will mainly be enclosed within the building. Sound from the facility will not be noticeable to residents nearby.
Yes, CO₂ transport will add about 1–2 ships per week. However, this is a small increase compared to current harbour activity.
The transport ships will be newly built and designed for quiet operations, including no idling engines while in port, which helps reduce overall noise levels.
No. BECCS acts as an additional flue gas treatment step and does not introduce any new sources of odour.
Yes. The facility poses no danger to nearby residents. It is subject to a strict environmental permit, with detailed risk assessments and safety protocols. We comply with all requirements and work actively to minimise potential risks.
For safety reasons. Following guidance from the City of Stockholm, paths have been rerouted. A temporary combined pedestrian and cycle path now runs along Lidingövägen.
Transport & Storage
Once liquefied, the carbon dioxide is temporarily stored in Energihamnen before being transported by ship to Øygarden in western Norway. There it will be injected and permanently stored 2,600 metres below the seabed of the North Sea.
Yes. These storage sites are carefully monitored and evaluated for long-term safety. Studies show that over 99% of the carbon remains securely stored after 1,000 years.