Japan has moved beyond demonstrating liquid hydrogen shipping and is beginning to build the commercial infrastructure needed to support it. A programme worth around US$2.7 billion combines investment in specialist carriers, import terminals, storage facilities and pipelines, to create what will become the world’s first integrated liquid hydrogen supply chain.
The initiative marks an important point in the development of hydrogen as a maritime fuel and energy commodity. While much of the industry’s attention has focused on proving that hydrogen-powered vessels can operate safely, Japan is tackling a different challenge: whether liquid hydrogen can be imported, stored, distributed and transported at commercial scale.
Around US$2.0 billion of the programme is being funded through the Japanese Government’s Green Innovation Fund, underlining hydrogen’s strategic importance to the country’s long-term energy policy. With limited domestic renewable energy resources, Japan expects to import significant volumes of low-carbon energy in the future, making both hydrogen and ammonia central to its decarbonisation strategy.
Kawasaki Heavy Industries’ are building what will become the world’s largest liquefied hydrogen carrier. With a cargo capacity of 40,000m³, the vessel will be more than thirty times larger than Japan’s pioneering demonstration ship Suiso Frontier.
The heart of the initiative is Japan Suiso Energy‘s liquefied hydrogen import terminal at Kawasaki. The terminal will initially have a 50,000m³ liquefied hydrogen storage tank to match the vessel capacity, while the longer-term vision includes 160,000m³ hydrogen carriers, with storage capacity increasing to 200,000m³. A 4km pipeline, capable of transporting approximately one million tonnes of hydrogen annually, will connect the terminal with the surrounding industrial area. Although it will initially carry domestically produced hydrogen, the pipeline has been designed to distribute imported hydrogen as international supply chains develop.
Taken together, these investments demonstrate that Japan is no longer treating liquid hydrogen as a series of individual technology projects. Instead, it is building the production, import, storage and transport infrastructure needed to determine whether liquid hydrogen can become a commercially traded energy commodity.
Importantly, this does not represent a shift away from ammonia. Japanese companies, such as JERA, continue to invest heavily in ammonia production, dedicated shipping and import facilities to enable future supply.
Rather than getting behind a single fuel, Japan appears to be developing parallel hydrogen and ammonia supply chains; a strategy that reflects the uncertainty surrounding future fuel markets while ensuring the country develops expertise across both technologies.
Whether liquid hydrogen ultimately competes with ammonia or complements it remains uncertain. Transporting hydrogen at -253°C presents significant technical and economic challenges, while the relative economics of liquid hydrogen and ammonia will continue to evolve as both supply chains mature.
But by investing simultaneously in vessels, terminals, storage and distribution infrastructure, Japan looks like it has taken the first steps to becoming the first country to build an integrated commercial supply chain around hydrogen.
