Jiangnan Shipyard (Group) Co Ltd, a subsidiary of the China State Shipbuilding Corporation (CSSC), showcased its latest conceptual blueprint for an integrated, zero-emission maritime container transport ecosystem at the Posidonia International Shipping Exhibition in Greece. The architecture moves beyond individual vessel propulsion by proposing a fully closed-loop logistics hub powered by fourth-generation molten salt reactors (MSRs).
The transport complex features an integrated network of offshore and marine assets, including:
- Offshore Nuclear Energy & Fuel Hub: A massive floating nuclear platform that acts as the “zero-carbon heart” of the complex. It is powered by advanced MSRs (using liquefied salt as both fuel and coolant), and uses generated electricity and heat to synthesize zero-carbon marine fuels such as green ammonia.
- Nuclear-Powered Ocean-Going Containerships: Mainline vessels capable of carrying up to 25,000 TEUs (Twenty-foot Equivalent Unit – standard unit of measurement quantify cargo capacity) that rely on MSRs for ultra-long-distance, emission-free voyages.
- Nuclear Transshipment Terminals: Innovative floating container terminals that provide energy supply directly at sea. They leverage large-scale nuclear power for cargo handling and to charge smaller coastal vessels.
- MSR Pushers & All-Electric Feeders: Modular, MSR-driven pusher tugs combined with pure-electric containerships and ammonia-powered feeders that distribute cargo regionally without relying on fossil fuels.
The molten salt reactors operate at near-atmospheric pressure, practically eliminating the risk of explosions or core meltdowns. If a containment breach occurs, the molten fuel rapidly solidifies at environmental temperatures, mitigating leakage risks. These reactors can be developed to use abundant, accessible thorium fuel sources. They are designed to operate for up to 40 years. By integrating deep-sea transport, offshore power generation, and green-fuel synthesis in a modular, replicable design, CSSC targets the reduction of lifecycle carbon emissions across the entire maritime supply chain. While the project represents a visionary leap in clean energy, commercial deployment will require navigating major international regulatory frameworks and port access rules for nuclear merchant vessels.
At the basic level of energy supply, a ship platform equipped with a MSR and a power unit has the dual function of generating nuclear energy and producing environmentally friendly fuel. On the one hand, it can provide electricity to a floating container terminal; on the other hand, it can charge purely electric feeder container ships moored at a floating container terminal. In addition, by using nuclear power to generate electricity and heat, it can also produce clean, carbon-neutral fuels, such as green ammonia, on a large scale, providing carbon-free fuel replenishment for coastal feeder ships and various other types of ships.
The entire complex is designed to provide a path to zero carbon emissions for the entire shipping chain. Based on a modular and reproducible architecture, it adapts to different scenarios in major ports and shipping routes. Its additional functions in the production of clean fuels could help the shipping industry achieve a leap in achieving carbon neutrality.
Jiangnan Shipyard continues to develop nuclear-powered ships and zero-carbon shipping equipment. In 2023, the company introduced promising projects such as ultra-large nuclear container ships and received preliminary approval (AiP) from leading international classification societies.
