Yanmar’s GH-FC Series earns DNV Type Approval

Yanmar Power Solutions has just received DNV Type Approval for its cutting-edge GH-FC Series maritime hydrogen fuel cell system in Osaka, Japan. This certification means that their modular, zero-CO₂ power units, ranging from 80 to 320 kW, meet the strict guidelines set by DNV for fuel cell installations and hydrogen-fueled vessels. It’s a big deal in the world of hydrogen fuel cell news, making it easier for shipbuilders, integrators, and vessel operators to jump on board.

Earlier this year, Yanmar underwent a corporate reorganization, leading to the formation of Yanmar Power Solutions, which now zeroes in on designing, making, and rolling out large marine propulsion and auxiliary power systems. This effort aligns with the company's ambitious YANMAR GREEN CHALLENGE 2050, where they’re heavily investing in hydrogen propulsion alongside traditional engines. Since debuting their first GH240FC units on the hybrid passenger vessel HANARIA, Yanmar Power Solutions has made significant strides, moving swiftly from the Approval in Principle (AiP) stage with ClassNK and DNV to the full product certification for their fuel cell offering.

From Concept to Certification

The journey that brought Yanmar to this point began in the mid-2010s when the company started exploring low-temperature fuel cell stacks for marine use. Fast forward to early 2023, when they unveiled their maritime hydrogen fuel cell system capable of delivering 300 kW-class power. They swiftly secured an Approval in Principle from ClassNK. Later that same year, they rolled out the first GH240FC modules to the HANARIA. By collaborating with DNV, Yanmar Power Technology Co., Ltd. and Yanmar Holdings earned an AiP for the more powerful 320 kW variant. Now, with Yanmar Power Solutions in action, there’s a dedicated crew pushing this product towards full Type Approval.

Built for the Future

What makes the GH-FC Series so appealing? It’s all about modularity. Operators can stack multiple 80 kW modules to perfectly align with a vessel's duty cycle, whether it’s a small workboat or a mid-size passenger ferry. The standardized dimensions and onboard direct current output of around 650 V simplify integration with electric propulsion motors and hotel loads. Plus, low vibration and noise levels enhance onboard comfort, a must-have for passenger vessels and crew transfer ships. This scalable design clears away the headaches of one-off installations and makes planning hydrogen infrastructure and bunkering schemes a whole lot easier along coastal routes.

Secret to Safe Certification

Thanks to DNV, one of the leading classification societies globally, we’ve got a real-world safety framework in place. Achieving Type Approval under DNV’s Ship Rules Pt.6 Ch.23 involves thorough documentation reviews, design assessments, and bench tests. DNV scrutinizes everything, from the hydrogen leak detection systems to ventilation, secondary enclosures, and fire protection measures, ensuring they meet the IMO's IGF Code and DNV's hydrogen handbooks. With that Type Approval certificate now in hand, any new vessel installation can reference the certified product, cutting engineering time and minimizing compliance risks. This is a game changer for speeding up project timelines for both new builds and retrofits.

Real-World Deployments

The real-world applications of Yanmar's GH-FC Series are already rolling out in various operations. The HANARIA hybrid passenger ship now sports two 240 kW modules, while the Tokyo Metropolitan Government has chosen GH-FC units for its hydrogen workboats, including the Tokyo Mirai Maru and Tsukiji ZERO. Even the aquaculture firm Kurose Suisan is putting the system to work for a service vessel managing marine farming tasks. Looking ahead in the cruise segment, NYK Line is integrating GH-FC modules into its new cruise ship Amane, combining Yanmar's fuel cells with Toyota hydrogen storage modules and ensuring safety under national MLIT guidelines. These projects are building up a solid track record and generating real-time performance data.

Aligning with Global Decarbonization Goals

The timing of Yanmar's Type Approval couldn’t be better, coinciding with stricter international regulations. The International Maritime Organization has recently revised its greenhouse gas strategy, now pushing for zero- or near-zero emission technologies to make up 5-10% of shipping's energy use by 2030 and aiming for net-zero around 2050. In Japan, national initiatives—run by the Nippon Foundation and NEDO—are already funding pilot projects to showcase hydrogen-fueled vessels in coastal areas. By certifying these modular fuel cell units, Yanmar is helping shipowners navigate these changing requirements and supporting the rollout of green corridors linking ports designed for hydrogen bunkering.

Investing in Test Infrastructure

To support the broader rollout of these technologies, Yanmar Power Solutions has announced plans for the Amagasaki Coastal Factory, which will focus on the testing of marine hydrogen engines and fuel cells. This facility will carry out performance trials, durability studies, and safety verifications under realistic sea conditions. Having dedicated testing infrastructure is crucial for ensuring manufacturing consistency and quality control—something DNV considers during its periodic assessments to maintain Type Approval certificates. This effort also reflects Yanmar’s commitment to strengthening the hydrogen ecosystem necessary for wider adoption of fuel-cell powered vessels.

Strategic Impact and Market Outlook

Achieving Type Approval is a crucial milestone for Yanmar's hydrogen strategy. It confirms a shift from AiP concepts to certified hardware ready for global deployment. Shipowners and shipyards now have a clearer path to meet IMO greenhouse gas targets, without the uncertainty posed by individual exemptions. Market forecasts show an increase in investments in marine fuel cells as ports and governments step up support for green corridors and incentives aimed at reducing emissions. By offering a modular, zero-CO₂ power block, Yanmar positions itself to grab a share of a rapidly growing market expected to expand significantly over the next decade.

Challenges on the Horizon

Even with all this progress, challenges still lie ahead. Storing hydrogen requires high-pressure or cryogenic tanks, which take up valuable deck or hold space. Bunkering infrastructure is still in its early stages in many areas, limiting flexibility in route planning. The environmental benefits rely on access to green hydrogen produced through renewable-powered electrolysis; using hydrogen from fossil sources could undermine lifecycle emission goals. Additionally, scaling up supply chains for certified fuel cell components and refining production processes at new facilities will be vital for meeting the demands and reducing costs.

Bottom line: Yanmar Power Solutions has taken a significant step toward enabling zero-emission maritime operations. With the DNV Type Approval secured for the GH-FC Series, this system is set to power ferries, workboats, cruise ships, and beyond using clean hydrogen. As more ports add bunkering capabilities and regulators tighten decarbonization pathways, this certified technology presents a straightforward and scalable solution. The excitement around hydrogen fuel cell news shows no signs of slowing down, and the industry is ready to embrace the journey ahead.