Yanmar Conducts World’s First 70 MPa High-Pressure Ship Refueling with Hydrogen

Osaka, Japan - October 20th, 2021



Yanmar Power Technology (YPT), a Group company of Yanmar Holdings Co., Ltd., has conducted the world's first 70 MPa high-pressure hydrogen refueling of a ship using a demonstration test boat equipped with a hydrogen fuel cell system.

The test boat cruised on a route around the island of the Osaka-Kansai World Exposition 2025 and famous tourist spots on the city's coast.

The 70 MPa high-pressure hydrogen refueling was carried out in cooperation with Toyota Tsusho Corporation, using a specially licensed high-pressure facility and a newly developed prototype long hydrogen refueling hose.

The 70MPa high-pressure refueling resulted in more than three times longer cruising time compared to the previous refueling process.

The results will be utilized for the market deployment of hydrogen fuel cell systems as well as the study of hydrogen refueling infrastructure for ships.

YPT is developing a 300kW-class maritime fuel cell system incorporating fuel cell modules supplied by Toyota Motor Corporation, addressing the potential customer demands such as ones relating to the Carbon-Neutral Port concept of the Ministry of Land, Infrastructure, Transport and Tourism.

Yanmar aims to obtain a type approval from classification societies so that the system can be installed in various types of ships with global customers towards a planned launch to market in 2023.


Hydrogen fuel cell demonstration test boat cruising in Osaka Bay. Image by Yanmar.


Image by Yanmar.


70 MPa high-pressure hydrogen refueling demonstration test. Image by Yanmar.


Image of the 300kW-class maritime hydrogen fuel cell system. Image by Yanmar.

About Yanmar


With beginnings in Osaka, Japan, in 1912, Yanmar was the first ever to succeed in making a compact diesel engine of a practical size in 1933.

A pioneer in diesel engine technology, Yanmar is a global innovator in a wide range of industrial equipment, from small and large engines, agricultural machinery and facilities, construction equipment, energy systems, marine, to machine tools, and components - Yanmar’s global business operations span seven domains.

On land, at sea, and in the city, Yanmar provides advanced solutions to the challenges customers face, towards realizing A Sustainable Future.

Yanmar Holdings Co., Ltd. - press release