AI answer written only from the numbered passages below
Porthos is a joint venture of Gasunie, the Port of Rotterdam Authority and EBN that captures CO2 from industrial plants in the port of Rotterdam, transports it by pipeline and stores it permanently in depleted gas fields under the Dutch North Sea seabed 2. Its partners describe it as the first large-scale CO2 transport-and-storage project realised in the EU 2. Four companies — Air Liquide, Air Products, ExxonMobil and Shell — hold SDE++ subsidy awards to use Porthos for their captured CO2 2. The design is to store around 37 million tonnes of CO2 in total, about 2.5 million tonnes per year over 15 years 1. By 2026 roughly 30 km of onshore and more than 20 km of offshore pipeline had been laid and the first buildings of the Maasvlakte compressor station were complete 1. Yes, the timeline slipped: in April 2026 the project announced a one-year delay, moving commissioning from end-2026 to the second half of 2027, attributed to the extra coordination a first-of-a-kind project needs in practice 1.
Cited passages
Passage 1: Scale and 2026 schedule update
Porthos is designed to store around 37 million tonnes of CO2 in total, at a rate of about 2.5 million tonnes per year over 15 years. By 2026, roughly 30 km of onshore pipeline and more than 20 km of offshore pipeline had been laid, and the first buildings of the Maasvlakte compressor station were complete. In April 2026 the project announced a one-year schedule slip, moving commissioning from the end of 2026 to the second half of 2027, attributed to the extra coordination a first-of-a-kind project of this kind needs in practice.
Porthos: the first large-scale CO2 storage project in the EUPorthos (Gasunie, Port of Rotterdam Authority, EBN) / Port of Rotterdam · porthosco2.nl · retrieved 18 Sep 2026
Passage 2: What Porthos does
Porthos is a joint venture of Gasunie, the Port of Rotterdam Authority and EBN that captures CO2 from industrial plants in the port of Rotterdam, transports it by pipeline, and stores it permanently in depleted gas fields under the seabed of the Dutch North Sea. It is described by its own partners as the first large-scale CO2 transport-and-storage project to be realised in the EU. Four companies — Air Liquide, Air Products, ExxonMobil and Shell — hold SDE++ subsidy awards to use Porthos for their captured CO2.
Porthos: the first large-scale CO2 storage project in the EUPorthos (Gasunie, Port of Rotterdam Authority, EBN) / Port of Rotterdam · porthosco2.nl · retrieved 18 Sep 2026
Sources consulted
- Porthos: the first large-scale CO2 storage project in the EUPorthos (Gasunie, Port of Rotterdam Authority, EBN) / Port of Rotterdam · porthosco2.nl · retrieved 18 Sep 2026 · cited
General information from public sources, not legal advice. Passages are our own-words summaries of the linked publications; follow the link for the authoritative text.