THE NEWS

According to Marine Insight, Lloyd's Register (LR) has issued what it describes as the first Type Approval Certificate for a 100% hydrogen-fuelled, spark-ignited marine engine. The approval has been awarded to an engine developed by BeHydro, confirming that the design meets LR's requirements for safety, performance, and reliability in marine applications.

The engine was developed and tested at ABC Engines' facility in Ghent and is designed to operate entirely on hydrogen, without the need for pilot fuels. This removes the dual-fuel dependency that characterised earlier hydrogen engine designs. LR's Global Technical Director noted that the certification demonstrates hydrogen-fuelled internal combustion engine technology is "continuing to mature as a viable option for maritime applications."

The power range for the certified engine spans 900 kW to 2,670 kW across different marine applications, according to ABC Engines' CEO. LR had previously awarded a separate Type Approval to BeHydro in 2023 for a hydrogen dual-fuel engine, making this latest certification a progression toward full hydrogen combustion rather than a blended approach.

WHY IT MATTERS

Type approval from a major classification society is the gateway between a technology demonstrator and a commercially deployable product. Without it, shipowners face significant barriers to insurance, financing, and flag-state registration. LR's certification of BeHydro's engine therefore advances the technology from the test bench toward the procurement conversation — a meaningful step, even if commercial deployment at scale remains some distance away.

For the Brazilian offshore market specifically, the relevance of this development is currently limited but worth monitoring. Brazil's offshore fleet — dominated by FPSOs, platform supply vessels (PSVs), and anchor handling tugs — operates under demanding conditions that require high energy density, long endurance, and reliable power management. Hydrogen's energy density per volume remains substantially lower than marine diesel or LNG, and the absence of bunkering infrastructure at Brazilian ports and offshore terminals is a structural constraint that certification alone does not resolve.

Petrobras has publicly stated decarbonisation ambitions across its operational footprint, and the company has explored green hydrogen as part of its energy transition portfolio. However, the pathway from corporate hydrogen interest to operational deployment aboard offshore support vessels or FPSOs involves a procurement and logistics chain that does not yet exist at Brazilian ports. The certification of an engine is a necessary condition for that chain to develop — it is not, by itself, sufficient.

For Brazilian OSV operators and their vessel owners, the more immediate question is whether hydrogen propulsion becomes a credible option within the next contracting cycle. Given that PSV and AHTS contracts in Brazil typically run three to five years, and that newbuild lead times add further horizon, any vessel ordered today for Brazilian operations would likely be delivered into a market where hydrogen bunkering infrastructure is still nascent at best. Operators evaluating newbuild specifications now are more likely to consider LNG dual-fuel or methanol-ready designs as near-term decarbonisation steps, with hydrogen remaining a longer-range consideration.

The power range of the certified engine — up to 2,670 kW — is relevant context. This positions the technology within the range of smaller offshore support vessels and harbour tugs rather than the larger platform supply vessels or the main propulsion systems of FPSOs, which require substantially higher installed power. For Brazilian offshore operations, this means the first plausible applications, if and when infrastructure develops, would likely be in near-shore support roles rather than deepwater field operations.

Regulatorily, ANTAQ and the Brazilian flag authority would need to align with IMO frameworks and classification society standards before hydrogen-propelled vessels could operate commercially in Brazilian waters. LR's type approval advances the international certification baseline that such regulatory alignment would reference, making it an indirect but genuine input to the Brazilian regulatory trajectory.

CONTEXT

LR's 2023 type approval for BeHydro's dual-fuel hydrogen engine established the prior certification baseline. The progression to a 100% hydrogen engine reflects the broader industry pattern of iterative certification — dual-fuel approval typically precedes single-fuel approval as operational data accumulates and safety cases mature. LR has also published analytical work on hydrogen's role in maritime decarbonisation, including an assessment of production, supply chain, and onboard use challenges, which underscores that the classification society views certification as one component of a larger adoption puzzle.

The IMO's revised greenhouse gas strategy, targeting net-zero emissions from international shipping by or around 2050, is the regulatory backdrop against which all alternative fuel certifications now occur. Whether hydrogen ultimately occupies a significant share of the marine fuel mix will depend on production cost trajectories, infrastructure investment, and the competitive position of other zero or near-zero carbon fuels — factors that remain unresolved across the industry globally, including in Brazil.

Source: MARINE INSIGHT