Aragon, part of the Seatrium Group, has been awarded a major contract by SLB Capturi to supply its Condensia™ CO₂ Liquefaction and Purification System for Hafslund Celsio’s Oslo Carbon Capture and Storage (CCS) Project. The project is being delivered by Aker Solutions and SLB Capturi and is located at Klemetsrud, Oslo, Norway.
This milestone strengthens Aragon’s position as a leading provider of advanced carbon capture, purification, and liquefaction technologies, while marking a significant step forward in supporting Europe’s decarbonisation and net-zero ambitions.
The Condensia™ system will deliver ultra-pure liquid CO₂ that meets the stringent specifications of Northern Lights, a critical requirement for the safe transport and permanent geological storage of captured carbon dioxide. Northern Lights is the world’s first open-access, full-scale CO₂ transport and storage network, designed to enable industrial emitters across Europe to permanently store CO₂ beneath the North Sea.
Phase one of Northern Lights is already operational, with phase two set to expand annual capacity from 1.5 million tonnes to 5 million tonnes of CO₂, reinforcing its role as a cornerstone of Norway’s Longship CCS programme and Europe’s broader climate strategy.
CEO Statement – Kristian Utkilen, Aragon
“Winning this contract is a testament to our team’s dedication and innovation. Condensia™ represents the future of CO₂ liquefaction—combining efficiency, reliability, and full compliance with Northern Lights’ rigorous specifications. By leveraging Aragon’s advanced process technologies together with SLB’s intellectual property and proven expertise, we are building a foundation for shared success. This collaboration is not just about technology, but about trust and a shared ambition to accelerate Europe’s transition to net zero.”
Technical Highlights of Condensia™
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Ultra-Pure CO₂ Output: Fully compliant with Northern Lights specifications
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High Energy Efficiency: Proprietary technology reduces energy consumption compared with conventional liquefaction systems
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Minimal CO₂ Loss: Advanced Deep Condensation Recovery limits CO₂ losses to less than 0.1% during liquefaction
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Modular & Scalable Design: Suitable for onshore and offshore applications, enabling rapid deployment and seamless integration into existing CCS infrastructure
Aragon’s Condensia™ platform delivers state-of-the-art CO₂ liquefaction and purification capabilities. By combining Aragon’s advanced process technologies with SLB Capturi’s carbon capture solutions, the system ensures compliance with Northern Lights’ strict requirements while enabling rapid deployment and scalability—particularly for the waste-to-energy sector.
With this delivery, Aragon is providing reliable, cost-effective, and scalable solutions that are ready to support the expansion of CCS projects across Europe’s evolving decarbonisation landscape.
About Northern Lights
Northern Lights is a joint venture between Equinor, Shell, and TotalEnergies and forms a key part of Norway’s Longship CCS programme. The project provides open-access infrastructure for CO₂ transport and permanent storage in geological formations beneath the North Sea, playing a pivotal role in Europe’s net-zero strategy through strong government support and international collaboration.
About Aragon
Aragon is a technology leader in carbon capture, purification, and CO₂ liquefaction solutions. Its Condensia™ platform offers scalable, energy-efficient systems for both onshore and offshore applications, designed to meet the most demanding CO₂ specifications for storage and utilisation.
About Hafslund Celsio
Hafslund Celsio owns and operates Norway’s largest waste-to-energy plant at Klemetsrud in Oslo. The Oslo CCS project involves retrofitting a carbon capture facility capable of capturing approximately 350,000 tonnes of CO₂ per year. The captured CO₂ will be liquefied, temporarily stored, and shipped from Oslo Harbour to the Northern Lights terminal at Øygarden, before being permanently stored beneath the North Sea seabed.
SLB Capturi, in collaboration with Aker Solutions, has been awarded the EPCIC contract for the carbon capture facility at Hafslund Celsio’s site.