Image Courtesy: Constellation Energy
China has proposed an ambitious nuclear-powered floating island designed to serve as a cargo transfer terminal, energy hub, and fueling station for ships, as part of a broader effort to decarbonize global maritime transport.
The concept was unveiled by Jiangnan Shipyard during the Posidonia International Shipping Exhibition in Athens on June 3. The Shanghai-based shipbuilder, a subsidiary of China State Shipbuilding Corporation, said the platform would combine cargo handling, power generation, and fuel production on a single offshore facility. The project is intended to support a new model of low-carbon ocean logistics. Further details were revealed by the company, according to the South China Morning Post.
At the center of the proposed floating island is a molten salt reactor, an advanced nuclear technology that uses liquefied salt as both fuel carrier and coolant. Unlike conventional nuclear reactors, molten salt reactors operate at near-atmospheric pressure and do not rely on large volumes of water for cooling.
Jiangnan Shipyard said the platform would also incorporate renewable energy systems, including solar panels and wind turbines, alongside hydrogen production facilities, green-fuel synthesis units, and electric charging infrastructure. The company envisions the floating complex acting as the “zero-carbon heart” of a future maritime logistics network.
In addition to transferring shipping containers, the facility would generate electricity and produce low-carbon marine fuels such as ammonia. The energy generated on board could be used to power terminal operations, recharge electric vessels, and refuel ships traveling along major trade routes.
The modular design would allow similar platforms to be deployed near ports and strategic shipping corridors worldwide. The company believes the concept could help reduce emissions from one of the world’s most carbon-intensive industries while supporting growing demand for cleaner maritime transportation.
The proposal also reflects China’s increasing investment in molten salt reactor technology, particularly systems fueled by thorium. Chinese researchers have been actively developing thorium-based reactors, which many scientists view as a promising alternative to conventional uranium-powered designs. In 2025, researchers from the Chinese Academy of Sciences reported the world’s first thorium-to-uranium fuel conversion within a molten salt reactor.
The floating island concept follows Jiangnan Shipyard’s earlier plans for a nuclear-powered container ship capable of carrying up to 25,000 containers. While the new offshore platform remains a proposal, it highlights China’s push to combine advanced nuclear technology with next-generation shipping infrastructure.
