MITSUI E&S's First LNG-fueled Low-speed Dual fuel Engines for Ferry Delivered

MITSUI E&S Co., Ltd. (Headquarters: Chuo-Ku, Tokyo; President and CEO: Takeyuki Takahashi; hereinafter, "MITSUI E&S") has delivered the LNG fueled engine, MITSUI-MAN B&W 12S50ME-C8.5-GI, to Naikai Zosen Corporation (Headquarters: Onomichi City, Hiroshima Prefecture; President: Kosaku Hara).
This engine is the first LNG fueled low-speed dual fuel engine for Ferry. The second unit is scheduled to be delivered to the same company in due course. The two units will be installed on a newly built ferry owned by Mitsui O.S.K. Lines, Ltd. and operated by MOL Sunflower Ltd. from Oarai to Tomakomai.

2-stroke marine engines are highly regarded for their ease of maintenance and fuel efficiency compared to 4-stroke engines, and they have been adopted by many domestic ferries and RORO vessels.(*1) The newly adopted engine has 12 cylinders, the largest number in the 50 cm piston bore range, and produces a maximum output of 21,240 kW.
The LNG dual fuel engines has been ordered 34 units for ocean-going vessels since the first unit in 2015.

In order to meet the increasing demand for dual fuel engines, MITSUI E&S has been expanding its production facilities(*2) since the 2022 fiscal year and is building a stable supply system for dual-fueled engines.

We will continue to provide customer-oriented services and sustainably contribute to the realization of a low-carbon and decarbonized society in the field of marine logistics as a marine propulsion system supplier.

*1) Our low-speed marine engines have been used in domestic ferries and RORO vessels.

*2) Related press releases: MITSUI E&S to Start Expansion of Production Facilities for Large Marine Diesel Engines to Support Next-Generation Fuels (November 9, 2022)