Mitsubishi Shipbuilding, a subsidiary of Mitsubishi Heavy Industries (MHI), has secured landmark orders from Toyofuji Shipping and Fukuju Shipping for Japan’s first methanol-fueled roll-on/roll-off (RORO) cargo ships.

These innovative vessels represent a significant step towards decarbonizing maritime transport in Japan. Construction will take place at the Enoura Plant of MHI’s Shimonoseki Shipyard & Machinery Works in Yamaguchi Prefecture, with completion and delivery scheduled for the end of fiscal 2027.

The ships will boast a length of approximately 169.9 meters, a breadth of 30.2 meters, and a gross tonnage of 15,750. With a loading capacity for around 2,300 passenger vehicles, they will significantly enhance cargo handling capabilities.

The vessels will feature a windscreen at the bow and a vertical stem design contributing to lower fuel consumption. MHI’s proprietary energy-saving technology, featuring high-efficiency propellers and high-performance rudders, will be featured to further optimize fuel usage.

The ships will be equipped with high-performance dual-fuel engines capable of operating on both methanol and heavy fuel oil. This allows for a CO2 emissions reduction exceeding 10% compared to traditional fuel oil-powered vessels, contributing to a smaller environmental footprint. The potential future use of green methanol holds promise for even greater lifecycle CO2 reductions.

Operational advantages

These methanol-fueled RoRo ships mark a first for coastal service in Japan, though similar vessels have already entered operation internationally. The increased vehicle loading capacity translates to enhanced transport efficiency per voyage. This, in turn, allows for greater flexibility in scheduling, potentially leading to improved crew working conditions with more holiday and rest time.

Addressing industry challenges

Mitsubishi Shipbuilding recognizes the evolving needs of maritime transport, including the shift towards modal shifts, CO2 reduction targets in land-based transportation, labor shortages, and working style reforms. By constructing ferries and RoRo vessels with fuel efficiency and environmental performance, they aim to collaborate with business partners and offer solutions that contribute to stable navigation for customers while addressing broader societal issues.