St1 secures agreement for infrastructure in major CO2 capture and storage project
St1 secures agreement for infrastructure in major CO2 capture and storage project
Hafslund Celsio is planning one of the world’s first full-scale carbon capture facilities at a waste-to-energy plant at Klemesrud, Oslo. St1 will provide existing infrastructure and designated areas for the CO₂ terminal, contributing its expertise in terminal operations during the project execution phase, and operating the storage and port facilities.
Once operational in 2029, the carbon capture facility will cut nearly 20 percent of Oslo city’s remaining fossil CO₂ emissions. The carbon capture facility is designed to capture 350,000 tonnes of CO₂ annually, capturing as much as 90 percent of the CO₂ in the flue gas. The captured CO₂ will then be liquified and transported for permanent storage under the seabed in the North Sea by Northern Lights JV.
As part of the process, the liquid CO₂ will be temporarily stored and shipped from the Port of Oslo. The terminal at Sjursøya, operated by St1, will be an integrated part of this infrastructure.
"We are very pleased with the agreement with Hafslund Celsio and look forward to facilitating the interim storage and shipment of CO₂ as well as staffing it in the future," says Ole-Petter Bjørdal, Head of Group terminals at St1.
From 2029, 30 emission-free tank trucks carrying liquid CO₂ will arrive at Sjursøya every day, delivering over 1,000 tonnes of liquid CO₂.
Every fourth day, ships from Northern Lights JV will collect CO₂ from the terminal and transport it to their receiving terminal at Øygarden near Bergen. From there, it will be piped into the North Sea and pumped 2,600 meters below the seabed for permanent storage.
In the long term, Sjursøya may also serve as an interim storage for CO₂ from other carbon capture projects in Eastern Norway, thereby contributing to the initiation of more carbon capture utilisation & storage (CCUS) initiatives.
The project was initiated in 2022 but entered a cost-reduction phase in 2023 due to increased cost estimates. After successful optimization, the final investment decision was made by the board of Hafslund Celsio in January 2024, and St1 signed a contract for the use and development of the area at Sjursøya in January 2025.