Dave Lee, executive director at e1 Marine, writes for Splash today.
Hydrogen has become one of shipping’s most debated fuels, yet much of that debate remains focused on deep-sea vessels and long-term timelines. Viewed through that lens, hydrogen still appears distant, constrained by cost, storage complexity, and limited infrastructure.
But that framing overlooks where hydrogen is already finding practical application.
Short-sea shipping is experimenting with multiple decarbonisation pathways. Battery-electric ferries work well on short, fixed routes with reliable shore power, while hybrid propulsion systems are expanding across workboats and offshore vessels. Fuels such as methanol and ammonia are also being explored. Within this mix, hydrogen is emerging as an option in applications where onboard storage, charging constraints, or operational flexibility make other options harder to deploy.
While green hydrogen for ocean-going vessels remains a long-term prospect, hydrogen systems are beginning to move from demonstration into early commercial deployment in short-sea segments. Ferries, workboats, and other coastal vessels are emerging as hydrogen’s proving ground, not because its challenges have disappeared, but because these vessels need solutions that work with today’s technology, costs, and regulations.
The shift is less about hydrogen economics and more about hydrogen architecture.
Rather than storing large volumes of compressed or liquefied hydrogen onboard, newer designs generate hydrogen on demand through integrated systems. This reduces storage and safety complexity, avoids reliance on undeveloped bunkering networks, and allows operators to work with existing fuels and supply chains. For vessels operating in emissions-restricted waters, this turns hydrogen into a deployable engineering solution rather than a future aspiration.
Fuel cells can integrate well into certain short-sea operations, delivering zero exhaust emissions at the point of use, quiet operation, and high efficiency under variable loads. For vessels with predictable routes and frequent port calls, they can integrate more readily than major engine retrofits – an advantage when operating parameters are tight and compliance timelines are short.
Workboats illustrate this clearly. They require dependable power, high torque, and operational flexibility, yet often operate from ports with limited shore power and vessels with constricted space and weight margins. In this context, fuel cells paired with on-demand hydrogen generation offer a practical route to compliance where one-size-fits-all solutions fall short.
Real-world deployment is reinforcing this pattern. The 75-passenger MV Sea Change entered public service in 2024 as the first commercial hydrogen fuel-cell ferry in the San Francisco Bay system and has since been refinanced through a sale-and-leaseback arrangement with Maritime Partners, signalling a shift from demonstration to fleet investment. In Europe, Baleària’s hydrogen-ready ferry Cap de Barbaria is applying another approach: using renewable e-methanol to generate hydrogen onboard for fuel-cell propulsion.
In Norway, hydrogen ferries like Norled’s MF Hydra are moving into regular domestic service, supported by national tenders and studies indicating that on selected high-speed routes hydrogen can be commercially workable despite higher underlying fuel and infrastructure costs, with some analyses suggesting cost parity with diesel between 2025 and 2030. These projects sit alongside Norway’s large battery‑electric ferry fleet, reflecting a segmented approach rather than a single‑fuel bet.
More recently, Samskip’s decision to commission hydrogen-powered short-sea containerships for delivery in 2026 underlines that hydrogen deployment is extending beyond ferries into wider coastal trades.
The pattern is also beginning to extend to larger vessels in a different role. For cruise ships and other large commercial vessels, fuel cells are increasingly being evaluated for auxiliary power, where they can reduce generator use, cut emissions in port, and mitigate regulatory exposure without waiting for full propulsion transitions. Success in smaller vessels is building the commercial confidence and supply chain maturity needed for those applications.
Regulation is accelerating this shift. In Europe, FuelEU Maritime and the EU ETS are already in force, increasing carbon costs well before 2030. These are immediate financial drivers, not distant policy signals. Ferry operators and coastal vessel owners cannot wait for perfect fuels or fully developed infrastructure – compliance solutions are needed now.
Hydrogen adoption therefore scales where it makes commercial and operational sense, not where it appears most ambitious on decarbonisation roadmaps.
Hydrogen fuel cells paired with on-demand generation are not a universal solution for the global fleet. They are one of several pathways available where energy demand is high, grid capacity is limited, and local emissions must fall quickly.
Shipping will continue to debate fuel pathways – green versus blue, direct use versus derivatives, combustion versus fuel cells. But they should not obscure what is already working.
The lesson from short-sea shipping is clear: decarbonisation moves fastest where engineering solutions align with operational needs and immediate regulatory pressure. In those segments, hydrogen is beginning to move from demonstration into operational service.
