MITSUI OSK Lines has ordered two LNG-fuelled ferries that can reduce carbon dioxide emissions by about 35% using cutting-edge technology.

Both due for delivery in 2025, the vessels will feature a streamlined shape with an aerodynamically rounded bow that can use diagonal headwinds to facilitate their propulsion.

To further reduce CO2 emissions, the vessels will be equipped with high-performance, high-efficiency engines, as well as an energy-saving device developed by vessel builder Naikai Zosen.

MOL said that compared to marine fuel oil, LNG reduces CO2 emissions by about 25%, sulphur dioxide by up to 100% and nitrogen oxide by about 85%, enabling a significant reduction of a vessel's environmental impact.

The Japanese giant said in a statement that it has signed an agreement with Naikai Zosen for the building of two LNG-fuelled ferries that will replace two vessels that MOL Ferry currently operates on the Oarai-Tomakomai route.

The MOL Group is currently building Japan’s first two LNG-fuelled ferries, Sunflower Kurenai and Sunflower Murasaki, which will both enter service in 2023.

By adopting the latest technologies, the new ferries will reduce CO2 emissions by up to 35% compared with ferries now in service, MOL said.

Concerted carbon reduction efforts throughout the group will enable the attainment of zero greenhouse gas emissions by 2050, the company said.

“It is promoting the wider adoption of LNG fuel through development and advancement of an LNG fuel supply system in Japan and overseas. It also plans to launch about 90 LNG-fuelled vessels by 2030 as an initiative to introduce clean alternative fuels,” MOL said.

The group will develop technology for LNG-fuelled vessels and safe operation through development, construction, and operation of the new ferries, and take an active stance in fostering the use of LNG fuel, the company added.