General – CCS Project
Allseas will play a key construction role in the realisation of the Porthos carbon capture and storage (CCS) project in the Port of Rotterdam, the first development of its kind in the Netherlands.
Porthos, a partnership between EBN, Gasunie and the Port of Rotterdam Authority, will transport CO2 from industrial sites in the port area to empty gas fields in the Dutch North Sea, where it will be permanently stored up to 4 kilometres beneath the seabed.
Allseas has been selected to construct the subsea pipeline. Starting 2025, the work includes installation, burial and commissioning of the 16-inch CCS pipeline connecting a compressor station on the Maasvlakte with the P18-A platform approximately 20 kilometres offshore.
Pipelay will be executed by Allseas’ dynamically positioned S-lay vessel Lorelay, with construction support from Oceanic. The vessels can position precisely and safely in the busy waters around Rotterdam, the busiest and largest port in Europe.