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EU2NSEA: A major new European cross-border CO2 pipeline network with storage in the North Sea

EU Project of Common Interest ‘EU2NSEA’ - CO2 transport & storage infrastructure for large-scale decarbonisation of North-West Europe.

The EU Project of Common Interest (PCI) “EU2NSEA” aims at developing a scalable pipeline-based system enabling the transport of anthropogenic and biogenic CO2 from North-West Europe to the storage sites in the North Sea for permanent geological storage. It is designed to provide resilience and security of CO2 transport, whilst enabling significant cost reductions and expediting deployment of CO2 capture, transport and storage networks at European scale.

Key numbers




Industrial sites


CO2 Mtpa




Storage sites

A group of leading European industrial companies have joined forces to establish a major new cross-border CO2 pipeline network infrastructure called the EU2NSEA project.

The Norwegian energy company Equinor (as coordinator for the PCI), the Belgian energy infrastructure operator Fluxys and the German energy company Wintershall Dea, together with a dedicated group of affiliated companies are cooperating on developing a project to establish a major cross-border CO2 network infrastructure called the EU2NSEA project.

The scope of EU2NSEA includes open infrastructural components along the entire CO2 capture, transport and storage chain:

  1. Capture at industrial emission sites in 8 EU member states.
  2. CO2 collection networks and hubs in 5 EU member states and 1 third country linking industrial emission sites to 2 central CO2 transhipment hubs/conditioning export terminals; including inland pipelines interconnecting industrial CO2 emission clusters to the CO2 collection hubs, and facilities for receiving liquid CO2 by ship, barge or train, and further pre-conditioning, compression, and liquefaction equipment for cross-border transport.
  3. CO2 transshipment hubs/conditioning export terminals in Zeebrugge (BE) and Wilhelmshaven (GE) for collection, receiving, preconditioning, compression, and liquefaction equipment of CO2 for further cross-border transport.
  4. Dedicated high-pressure CO2 transport pipeline infrastructure from export terminals in Zeebrugge (BE) and Wilhelmshaven (GE) to storage sites in the North Sea (NO).
  5. Storage sites in the North Sea (NO) for the permanent safe geological storage of CO2, comprising sub-sea infrastructure and infrastructure within the geological formation.

The setup of the project will allow for flexible future expansions with additional CO2 sources, increasing the handling capacity of the CO2 collection hubs or connecting additional CO2 collection hubs and other CO2 storage sites, supporting emitters in the whole of North-West Europe to decarbonise their processes on a large scale before the end of this decade.

This cross-border transport pipeline network solution will carry CO2 captured from emitters and CO2 collection hubs located in North-West Europe to permanent geological storage complexes more than 1500 meters below the seabed in the North Sea.

The project location, the North Sea Basin, is proven to be highly suitable for storing CO2. Moreover, a significant part of the European CO2 emissions is generated by emitters located on the coasts of this basin. Nonetheless, the geographical reach of the project is much larger, as CO2 can be shipped in from neighbouring hubs, or transported from inland continental emission locations via pipeline, truck, rail, barge or ship and connected to the CO2 collection hubs. This will offer emitters in the whole North-West Europe and the Baltics a robust and flexible solution for large-scale decarbonisation before the end of this decade.

Facts about Projects of Common Interest

Projects of common interest (PCIs) are key cross border infrastructure projects that link the energy systems of EU countries.

They are intended to help the EU achieve its energy policy and climate objectives: affordable, secure and sustainable energy for all citizens, and the long-term decarbonisation of the economy in accordance with the Paris Agreement.

European Commission website

The cross-border pipeline network solution aims to provide resilience and security of CO2 transport by having a dedicated, high-capacity pipeline infrastructure (20-40 Mtpa CO2) in place that can operate with high regularity. It provides much needed essential evacuation capacity of CO2 from industrial emitters in North-West Europe and is planned to be operational from 2029.

The emission reductions associated with this project will directly contribute towards the national targets in 8 EU Member States, 1 third country and to EU wide emission reduction targets.

Industrial collaboration paving the way

Strategic partnerships are being developed with European players to ensure CO2 infrastructure and export terminals are developed along a common timeline. CO2 Highway Europe will connect in Zeebrugge to an onshore CO2 transmission infrastructure built and operated by Fluxys. The open-access CO2 transmission system will give emitters in Belgium and surrounding countries the opportunity to connect to safe and reliable CO2 stores in Norway.

Grete Tveit, Equinor’s senior vice president for Low Carbon Solutions, and Pascal De Buck, CEO Fluxys.

Fluxys and Equinor launch large-scale solution

Project timeline

The EU2NSEA infrastructure will be realised in stages. Various partnerships are working hard on progressing capture at emission site, onshore transport, offshore transport and offshore storage.

The offshore pipeline between Belgium and Norway is currently on the following schedule:

  • Start of feasibility study Q1 2024
  • Completion of feasibility study Q4 2024
  • Start of FEED (Front End Engineering & Design) Q1 2025
  • Completion of FEED Q4 2025
  • Permitting date of request Q4 2025
  • Final investment decision Q4 2025
  • Start of construction Q1 2026
  • Completion of construction and commissioning Q4 2029
  • Entry into operation 2029

Partnering for a large-scale CCS solution

The ambition of the Norwegian-German CCS project ‘NOR-GE’ is to make a vital contribution to reducing greenhouse gas emissions in Europe. An approximately 900-kilometre-long open access pipeline is planned to connect the CO2 collection hub in Northern Germany and the storage sites in Norway.

Anders Opedal, CEO Equinor and Mario Mehren, CEO Wintershall Dea

Wintershall Dea and Equinor partner up

Contact information

News about the projects

Commission proposes 166 cross-border energy projects for EU support to help deliver the European Green Deal

Commission Delegated Regulation (EU) 2024/1041 of 28 November 2023 regarding the 1st Union list of projects of common interest and projects of mutual interest has published in the Official Journal of the European Union.

Equinor and Wintershall Dea partner up for large-scale CCS value chain in the North Sea.

Fluxys and Equinor launch solution for large-scale decarbonisation in North-Western Europe.

Project of Common Interest ‘EU2NSEA'

Project of Common Interest ‘EU2NSEA’ is project 13.8 in first EU list of Projects of Common Interest (PCIs) and Projects of Mutual Interest (PMIs)

Date website last updated: 19/04/2024