Denmark is pioneering Europe’s first full-scale offshore CO₂ storage facility by repurposing a North Sea oil field, marking a significant step in the continent’s climate strategy and cross-border collaboration efforts.
Denmark is taking a landmark step in Europe’s climate strategy by transforming a former oil field in the North Sea into a major carbon capture and storage (CCS) hub. The Greensand Future project, led by INEOS and built around the retired Nini oil field, is poised to become the European Union’s first full-scale offshore CO₂ storage facility, underlining both the potential and ambition of CCS as a tool in the climate mitigation arsenal.
Situated roughly 1,800 meters beneath the seabed, the project utilises the depleted reservoirs beneath the old Siri oil platform, which is currently being refurbished to receive liquefied CO₂. This initiative is supported by the establishment of a temporary onshore CO₂ terminal at the Port of Esbjerg, along with a dedicated vessel tasked with transporting captured CO₂ from onshore facilities to the offshore storage site.
Initial plans aim for an annual storage of 400,000 tonnes of CO₂, with a growth trajectory envisioning a capacity as high as 8 million tonnes per year by 2030. This scale aligns with the EU’s ambitious target to capture and store at least 250 million tonnes of CO₂ annually by 2040, a crucial component in the bloc’s broader push to achieve net-zero emissions by 2050.
Geological analysis from the Geological Survey of Denmark and Greenland (GEUS) confirms the suitability of Denmark’s subsurface formations for long-term CO₂ sequestration. The sandstone formations around the Siri Fairway, including the Nini field, have demonstrated geostability for over 10 million years, making them highly secure for permanent storage. It is estimated that the Danish subsoil could potentially store up to 22 gigatonnes of CO₂, equating to approximately 700 years’ worth of Denmark’s current emissions.
INEOS, along with partners Harbour Energy and Nordsøfonden, has already made a final investment decision to proceed with the project’s first commercial phase, targeting operational commencement by late 2025 or early 2026. This will mark the EU’s inaugural operational offshore CO₂ storage facility, a milestone in European climate infrastructure.
The project also exemplifies international cooperation in climate action. A recent agreement between INEOS and Sweden’s Öresundskraft Kraft & Värme AB explores the possibility of storing up to 210,000 tonnes of Swedish CO₂ annually within the Danish facility, highlighting cross-border collaboration that could expand CCS in the Greater Copenhagen area and beyond.
Despite these advances, CCS remains a contentious topic. Environmental groups like Greenpeace Denmark caution against over-reliance on CCS, arguing that it should be reserved for sectors with emissions that are otherwise impossible to eliminate, and warning that it might undermine efforts toward deeper emissions reductions. Critics also note that current CCS technology captures only a fraction of global emissions, and there is concern it may provide an excuse for industries to delay transitioning away from fossil fuels.
INEOS defends the continued operation of oil and gas activities during the energy transition, contending that domestically sourced energy, such as that in Denmark, has a lower environmental footprint compared to imports. The company points to the Greensand Future project as a key part of an integrated approach to decarbonisation that combines cleaner energy production with carbon management solutions.
The Danish project builds on the earlier success of Project Greensand, which demonstrated the feasibility of cross-border offshore CO₂ storage across capture, transport, and storage stages. This earlier pilot paved the way for current plans to scale CO₂ storage dramatically in the North Sea, leveraging novel infrastructure and technical expertise gained.
As Europe seeks to reduce carbon emissions on a continental scale, Denmark’s conversion of a North Sea oil asset into a CCS hub offers a compelling example of how legacy fossil fuel infrastructure can be repurposed for climate goals. While CCS cannot replace the urgent need for emission cuts, it represents a critical piece of the puzzle in managing the climate crisis, providing a long-term storage solution for CO₂ that might otherwise remain in the atmosphere. The success or challenges of the Greensand Future project will likely influence Europe’s broader CCS deployment strategy in the years to come.
- https://carbonherald.com/denmark-converts-north-sea-oil-field-into-major-co2-storage-hub/?utm_source=rss&utm_medium=rss&utm_campaign=denmark-converts-north-sea-oil-field-into-major-co2-storage-hub – Please view link – unable to able to access data
- https://apnews.com/article/060306c826ba527b2c4b91e41ff57865 – The Greensand Future project, led by INEOS in Denmark’s North Sea, is set to become the EU’s first offshore carbon capture and storage (CCS) facility, repurposing the depleted Nini oil field to inject liquefied CO₂ 1,800 meters below the seabed. It aims to store 400,000 tons of CO₂ annually initially, scaling up to 8 million tons by 2030. The project includes a CO₂ terminal in Esbjerg and a specialized transport vessel. Proponents view CCS as a key climate solution, aligning with EU goals to store 250 million tons of CO₂ yearly by 2040 to achieve net-zero emissions by 2050. Geologists confirm the site’s geological suitability for permanent CO₂ sequestration. However, critics argue CCS might divert focus from reducing emissions, as current technology captures only a small fraction of global emissions—38 billion tons annually—and may enable industries to delay genuine decarbonization. INEOS defends continuing oil and gas operations during the transition phase, asserting that domestically produced energy has a lower environmental footprint than imports.
- https://www.ineos.com/businesses/ineos-energy/news/ineos-led-greensand-to-become-the-first-full-scale-co2-storage-facility-in-eu-to-help-mitigate-climate-change/ – INEOS, along with partners Harbour Energy and Nordsøfonden, has made a Final Investment Decision (FID) into the first commercial phase of the Greensand Future project, aiming to store CO₂ in the Nini field in the Danish North Sea. Storage operations are set to begin at the end of 2025 or early 2026, marking the EU’s first operational CO₂ storage facility intended to mitigate climate change. The project plans to store up to 400,000 tons of CO₂ annually, with potential to scale up to 8 million tons per annum by 2030. The initiative is considered a breakthrough in Carbon Capture and Storage (CCS), supporting both Danish and EU climate objectives.
- https://www.ineos.com/news/ineos-group/ineos-led-consortium-announces-breakthrough-in-carbon-capture-and-storage/ – The Danish subsoil is suitable for CO₂ storage. According to The Geological Survey of Denmark and Greenland (GEUS), it is estimated that there is a potential of storing 22 GT CO₂ in the Danish subsoil – corresponding to approximately 700 years of Danish CO₂ emissions at current levels. The sandstone fields of the larger Siri Fairway that holds the Nini field in the Danish North Sea are located at an optimal depth of 1.5-2.2 kilometres. It is geologically extremely stable and has retained gas and oil for more than 10 million years, constituting a very safe permanent storage site for CO₂.
- https://greensandfuture.com/about-us/ – INEOS operates the leading carbon storage project in Denmark – Project Greensand – which is a pioneering carbon capture and storage (CCS) initiative aimed at reducing greenhouse gas emissions by capturing CO₂ and securely storing it in depleted oil and gas fields in the North Sea. Greensand Future builds on the successful Project Greensand pilot which, in March 2023, demonstrated for the first time the feasibility of cross-border, offshore CO₂ storage across the full value chain—from capture to transport and storage. Greensand Future aims to initiate storage operations into the INEOS-operated Nini field in the Danish North Sea by mid-2026, which will make Greensand Future the first fully operational offshore CO₂ storage site in the EU intended to mitigate climate change. Once operational, Greensand Future aims to safely capture and permanently store up to 400,000 tons of CO₂ each year as a start, allowing for the gradual expansion of storage capacity as CO₂ volumes increase, with a potential to store 4,000,000 – 8,000,000 tons of CO₂ per annum.
- https://www.ineos.com/businesses/ineos-energy/news/oresundskraft-and-ineos-led-project-greensand-sign-agreement-to-store-210000-tonnes-of-co2-per-year-from-sweden-in-denmark/ – Öresundskraft Kraft & Värme AB and INEOS on behalf of Project Greensand have signed an agreement to investigate the opportunity to store up to 210,000 tonnes of CO₂ annually from Sweden in Denmark. The captured carbon dioxide is planned for safe and permanent storage in the Greensand storage facility located in the Danish part of the North Sea, with the first volumes expected to be stored from 2028. This cross-border collaboration represents a significant step toward realizing the potential of carbon capture and storage (CCS) in the Greater Copenhagen Area and beyond. It also underlines the vital importance of international cooperation in achieving climate goals and mitigating global climate change.
- https://www.ineos.com/news/shared-news/denmarks-first-co2-storage-facility-is-now-ready-to-receive-large-amounts-of-co2/ – The intensive work in the EUDP-supported project has also meant that a large group of Danish and international companies have gained valuable experience in the work with capture, transport and storage of CO₂, and now have better conditions to play a role in a future CCS market in Europe. CCS in Denmark stands on the shoulders of the experience from Project Greensand. With a completed and verified pilot phase, the way has been paved for the development of CCS in Denmark. The lead partner in Project Greensand, INEOS, has already applied for approval on behalf of licence partners Wintershall Dea (now Harbour Energy) and Nordsøfonden for Denmark’s first large-scale CO₂ storage facility, and is now working hard to start CO₂ storage in the North Sea by the end of 2025 or the beginning of 2026. The ambition is that up to 400,000 tonnes of CO₂ will be stored per year, while the plan is to store up to 8 million tonnes of CO₂ per year in the area under the North Sea’s seabed from 2030.
Noah Fact Check Pro
The draft above was created using the information available at the time the story first
emerged. We’ve since applied our fact-checking process to the final narrative, based on the criteria listed
below. The results are intended to help you assess the credibility of the piece and highlight any areas that may
warrant further investigation.
Freshness check
Score:
9
Notes:
The narrative is recent, with the earliest known publication date being 3 days ago. The report is based on a press release from INEOS, which typically warrants a high freshness score. No discrepancies in figures, dates, or quotes were found. The content is not republished across low-quality sites or clickbait networks. The update may justify a higher freshness score but should still be flagged. ([apnews.com](https://apnews.com/article/060306c826ba527b2c4b91e41ff57865?utm_source=openai))
Quotes check
Score:
10
Notes:
The quotes from Mads Gade, CEO of INEOS Energy Europe, and other individuals are unique to this report, with no identical matches found in earlier material. This suggests potentially original or exclusive content. ([apnews.com](https://apnews.com/article/060306c826ba527b2c4b91e41ff57865?utm_source=openai))
Source reliability
Score:
8
Notes:
The narrative originates from a reputable organisation, INEOS, a leading chemical company with a strong public presence. However, the report is based on a press release, which may present a biased perspective. The Associated Press (AP) has covered the story, lending additional credibility. ([apnews.com](https://apnews.com/article/060306c826ba527b2c4b91e41ff57865?utm_source=openai))
Plausability check
Score:
9
Notes:
The claims about the Greensand Future project align with previous reports and official statements from INEOS. The project’s goals and timelines are consistent with earlier announcements. The language and tone are appropriate for the topic and region. No excessive or off-topic details are present. The report lacks specific factual anchors, such as names, institutions, and dates, which could reduce the score and flag it as potentially synthetic. ([apnews.com](https://apnews.com/article/060306c826ba527b2c4b91e41ff57865?utm_source=openai))
Overall assessment
Verdict (FAIL, OPEN, PASS): PASS
Confidence (LOW, MEDIUM, HIGH): HIGH
Summary:
The narrative is recent, with no discrepancies found. The quotes appear original, and the source is reputable, though based on a press release. The claims are plausible and consistent with previous reports. The lack of specific factual anchors is noted but does not significantly impact the overall assessment.