Porthos is developing a project in which CO2 from industry in the Port of Rotterdam is transported and stored in empty gas fields beneath the North Sea.

The CO2 that will be transported and stored by Porthos, will be captured by various companies. The companies will supply their CO2 to a collective pipeline that runs through the Rotterdam port area. The CO2 will then be pressurised in a compressor station.

The CO2 will be transported through an offshore pipeline to a platform in the North Sea, approximately 20 km off the coast. From this platform, the CO2 will be pumped in an empty gas field. The empty gas fields are situated in a sealed reservoir of porous sandstone, more than 3 km beneath the North Sea.

Porthos will store around 37 Mton CO2, approximately 2.5 Mton CO2 per year for 15 years.

The final investment decision for Porthos has been taken in October 2023. The construction of the Porthos infrastructure will start in 2024. The system is expected to be operational from 2026.

Porthos has been recognised by the European Union as a Project of Common Interest. For more information, please visit Projects of Common Interest (europa.eu).