Wilhelmshaven study proposes rail and ship network for North Sea CO2 storage

Study maps a route from industrial plants to the North Sea

Wilhelmshaven could become a major transport hub for carbon dioxide captured by Germany’s energy-intensive industries, according to a feasibility study reported by NDR. The study envisages moving large volumes of CO2 by rail from cement and steel plants across Germany to an export terminal near the JadeWeserPort. The carbon dioxide would then be transferred to specialised ships and carried to underground storage sites beneath the North Sea.

The study was commissioned by a group that includes energy companies and DB Cargo. It is intended to provide a basis for potential investment rather than constitute a final construction or operating decision. Its central logistics estimate is that around eleven loaded trains could arrive in Wilhelmshaven every day by 2030. This would turn the city into an interface between Germany’s inland rail network and a developing offshore carbon transport and storage system.

Export terminal planned for 2029

The Energy Hub Wilhelmshaven business network said the proposed export terminal north of JadeWeserPort is expected to begin operating in 2029. The schedule would place the terminal in service before the study’s projected rail volumes are reached in 2030. The concept depends on coordinated investment in loading facilities, specialised rail equipment, port handling systems and ships capable of transporting carbon dioxide safely.

Wilhelmshaven already has a strategic position on Germany’s North Sea coast, but the Oldenburg Chamber of Industry and Commerce warned that the railway network is not prepared for the additional traffic. The chamber described the feasibility study as a positive signal for the regional economy and said it could strengthen Wilhelmshaven’s role as an energy hub. It nevertheless called for the rail network to be expanded quickly. Without sufficient track and terminal capacity, the projected eleven daily trains could create a bottleneck before the offshore storage chain is fully established.

Regulatory opening brings environmental objections

The project has become more relevant after Germany opened a legal path for storing carbon dioxide beneath the sea. NDR reported that the Bundesrat approved the CO2 storage law after the Bundestag had also adopted it, with the northern German states supporting the legislation despite continuing concerns. The new framework allows captured carbon dioxide to be stored under German marine territory and creates a potential domestic destination alongside storage projects elsewhere in the North Sea.

Environmental organisations in Wilhelmshaven dispute both the safety and climate case for the proposed chain. A local alliance has raised concerns that CO2 could corrode rail tank wagons. DB Cargo said the gas would be transported in specially insulated tank wagons. The alliance also fears that injecting carbon dioxide into the seabed could displace methane, a more potent greenhouse gas, and allow it to escape into the atmosphere. The German North Sea Coast Protection Association opposes offshore storage, while the Lower Saxony state government supports it.

Investment case depends on the full logistics chain

For cement and steel producers, the proposed hub could provide an outlet for emissions that are difficult to eliminate through electrification or renewable energy alone. Its commercial viability, however, will depend on more than the export terminal. Capturing and conditioning the CO2, securing train capacity, expanding rail infrastructure, operating specialised ships and obtaining access to certified storage sites must function as one continuous chain.

The study gives investors and industrial users an initial measure of the required transport scale, but it does not settle questions about cost allocation, environmental safeguards or infrastructure timing. Wilhelmshaven’s prospects as a North Sea CO2 hub will therefore depend on whether terminal development, rail upgrades, regulation and offshore storage capacity advance together. A delay in any one of those elements would reduce the value of the others and could limit the volumes available to the planned terminal.