Paving the way for safe hydrogen shipping in International Shipping News 18/04/2026 As the maritime sector explores hydrogen as a zero-carbon fuel, LR’s Fuel for Thought: Hydrogen report and Guidance Notes for Onboard Hydrogen Generation give the insight and practical pathways needed to turn early ambition into safe, scalable action. Hydrogen has long been seen as a promising fuel for maritime decarbonisation. In fuel cells, it offers zero tank-to-wake emissions, making it a promising candidate for the sector’s long-term energy transition. But turning this potential into reality is not straightforward. Hydrogen supply infrastructure is limited, storage technically demanding, and regulations evolving. For many operators, the challenge is how to begin deploying hydrogen technologies safely today while preparing for broader adoption in the future. LR issued its Fuel for Thought: Hydrogen report in January, examining the global hydrogen market, technology readiness, and operational realities shaping adoption in shipping. LR recognises the challenges surrounding hydrogen use and the emerging opportunities for onboard hydrogen generation, whether as a transitional measure or a long‑term solution. Guidance Notes for Onboard Hydrogen Generation give practical, structured recommendations for safely integrating onboard hydrogen generation systems. Together, these documents combine strategic insight and technical guidance to accelerate the safe, responsible uptake of hydrogen and fuel cell technology in maritime operations. Practical constraints LR’s Fuel for Thought: Hydrogen shows hydrogen adoption to be limited by a combination of undeveloped infrastructure, and technical and economic factors. Less than one percent of global hydrogen production comes from low-emissions sources, and storing liquid hydrogen at least –253°C constrains vessel design and limits the fuel’s immediate applicability. These realities constrain initial projects to short-sea and fixed-route operations, where predictable refuelling, policy support, and access to renewable energy enable operators can overcome storage and supply challenges. Examples include Norwegian hydrogen ferries and Swiss passenger vessels, where policy incentives and regional infrastructure support early adoption. LR’s report findings show that the industry needs transitional solutions to advance operational experience and to develop supply chains before large-scale bunkering infrastructure becomes widely available. Onboard hydrogen generation One of the most effective transitional solutions is onboard hydrogen generation. By producing hydrogen from alternative fuels such as methanol or ammonia directly onboard, vessels can use fuel cells without depending on extensive hydrogen bunkering or large storage tanks. Hydrogen introduces a combination of hazards that require careful management. Its wide flammability range, low ignition energy, and low density pose specific risks in confined shipboard environments. Onboard generation adds complexity: vessels will carry both the primary fuel and the resulting hydrogen, each with different dispersion and ignition characteristics. The Loading Dock in Qingdao New Qianwan Container Terminal. East China’s Shandong Province, East Asia The report finds onboard generation as a potential bridge strategy for shipowners to develop operational experience, build hydrogen-ready architectures, yet sustain flexibility for future fuel pathways. Onboard generation from other fuel