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Yanmar’s GH-FC wins DNV type approval
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Yanmar Power Solutions has secured type approval from classification society DNV for its GH-FC hydrogen fuel cell system for ships. The certified product family is offered in 80kW, 160kW, 240kW and 320kW configurations and the company says examples are already operating in Japan’s maritime sector. Masaru Hirose, Yanmar’s President and Representative Director, described the approval as a “major milestone.” The approval clears a technical and regulatory hurdle for owners and yards evaluating fuel cell equipment for onboard power and hotel loads, and it positions the GH-FC as a factory-built option alongside Yanmar’s hydrogen-compatible engine work and plans for a near-Osaka manufacturing site.
Key takeaways
- Certification: DNV has granted type approval to Yanmar Power Solutions’ GH-FC hydrogen fuel cell maritime power system.
- Product range: The GH-FC family is available in 80kW, 160kW, 240kW and 320kW models.
- Deployment and plans: Yanmar says GH-FC units are already deployed in Japan and the company revealed plans in February to develop a hydrogen engine manufacturing site near Osaka.
- Policy context: The International Maritime Organization has proposals that would apply a carbon levy to ships above 5,000 tonnes from 2028.
Table of contents
Why type approval matters for ship operators
A DNV type approval certifies that a piece of equipment meets a classification society’s technical standards for safe installation and operation on vessels. For owners and shipyards that buy modular power units rather than design bespoke systems, a type approval shortens technical review cycles and reduces the paperwork required at the design stage.
Yanmar’s GH-FC family now carries that certification, which covers the product designs rather than a single installation. That matters because the GH-FC is offered in multiple rated outputs — 80kW, 160kW, 240kW and 320kW — so the same validated design principles can be applied across vessel types from workboats to small passenger ships. In practice, buyers choosing a certified unit typically face lower engineering costs and fewer class queries during surveys and flag-state inspections.
Certification does not alone guarantee market uptake: owners will still assess fuel availability, bunkering arrangements and operational economics. But a factory-certified fuel cell is a simpler procurement item for ship operators that want an off-the-shelf replacement for diesel hotel loads or a supplemental source of electric power while alongside.
How the GH-FC fits into ship electrical and propulsion choices
Fuel cells are being considered for two distinct ship roles: as a main propulsion source on new designs, and as an onboard generator for hotel load and auxiliary power. The GH-FC sits clearly in the latter category as a dedicated onboard generator family. Compared with running diesel gensets while at berth, a hydrogen fuel cell emits no local NOx or particulate matter at the point of use and can reduce CO2 if the hydrogen is low-carbon.
Ports with constrained electrical grids are one commercial case for onboard fuel cells: vessels equipped with fuel cells can provide their own power at berth without drawing from the port network. That reduces the need for shore-power upgrades and, in some cases, bypasses grid congestion costs. Yanmar positions the GH-FC as a unit that can free owners from relying solely on diesel engines at berth or on limited shore power.
Ship designers considering fuel flexibility will compare packaged fuel-cell generators like the GH-FC with hybrid battery systems and conventional generators. Packaged certification and a range of standard outputs — 80kW through 320kW — let naval architects size a solution without bespoke engineering for each output band.
Market and regulatory drivers that could accelerate uptake
Regulation is a material driver. The International Maritime Organization is developing a Net Zero framework that, under present drafts, would begin applying a carbon charge to vessels larger than 5,000 tonnes from 2028. Separately, the EU’s FuelEU Maritime regulation already applies carbon pricing for ships of that size when they use EU ports. Those rules increase the appeal of zero-emission onboard power for owners trading into regulated regions.
Commercially, the business case for onboard fuel cells depends on hydrogen bunkering availability and the relative cost of low-carbon hydrogen versus alternatives. For short stays in port and vessels with modest hotel loads, a certified fuel-cell generator reduces local emissions immediately, even if the lifecycle carbon balance depends on the hydrogen source.
Yanmar’s parallel moves — commercialised hydrogen products in its lineup, earlier demonstrations of hydrogen-capable engines, and plans for a hydrogen engine manufacturing site near Osaka — signal a strategic bet that regulatory and market momentum will create demand for certified, factory-built hydrogen solutions.
| Model | Continuous output | Typical role |
|---|---|---|
| GH-FC-80 | 80kW | Hotel load, small workboats |
| GH-FC-160 | 160kW | Passenger vessels, ferries (auxiliary) |
| GH-FC-240 | 240kW | Medium passenger or service ships |
| GH-FC-320 | 320kW | Larger auxiliaries, auxiliary propulsion support |
The case for and against rapid adoption
The case for
- Certified, factory-built units shorten procurement cycles and lower engineering costs for shipowners.
- Regulatory measures such as the IMO framework and FuelEU Maritime increase the operational value of zero-emission onboard power.
The case against
- Hydrogen bunkering infrastructure and low-carbon hydrogen supply remain the key economic constraint for sustained use.
- Total cost of ownership compared with batteries or upgraded shore power is still vessel- and route-specific and may slow decisions.
What to be careful about
- Limited hydrogen availability at ports will restrict practical deployments even for certified units.
- If the hydrogen supplied is not low-carbon, lifecycle CO2 savings may be smaller than owners expect.
- Certification reduces class risk but does not remove commercial or supply-chain risk tied to hydrogen fuel pricing and bunkering.
The bottom line
DNV type approval removes a key technical barrier for Yanmar’s GH-FC product family and makes the units easier to specify for owners and yards. The certified models — 80kW, 160kW, 240kW and 320kW — give naval architects standardised options for hotel loads and auxiliary power. Real commercial momentum will depend on hydrogen supply and bunkering economics, but regulation such as the IMO measures aimed at ships above 5,000 tonnes and the EU’s FuelEU Maritime rule create a clearer operating case for onboard zero-emission power. For owners facing port constraints or carbon pricing, certified fuel cells are now a more tractable procurement choice.
What to watch
- Watch for formal adoption of the IMO Net Zero framework; the proposals envision a carbon levy on ships above 5,000 tonnes starting in 2028.
- Watch for Yanmar’s schedule for the Osaka hydrogen engine manufacturing facility; no date has been set.
Frequently asked questions
What models does Yanmar’s GH-FC come in?
The GH-FC family is offered in 80kW, 160kW, 240kW and 320kW configurations, allowing selection by vessel hotel load or auxiliary-power requirement.
Who granted the GH-FC type approval?
The maritime classification society DNV granted the type approval for Yanmar Power Solutions’ GH-FC hydrogen fuel cell system.
How does regulation affect the business case?
Regulatory drivers include the IMO proposals that would place a carbon levy on ships above 5,000 tonnes from 2028 and the EU’s FuelEU Maritime carbon pricing for relevant ships using EU ports.
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