Mitsui O.S.K. Lines, Ltd. (MOL), together with Ouchi Ocean Consultant, Inc., the National Maritime Research Institute (NMRI) of National Institute of Maritime, Port and Aviation Technology (MPAT), Smert Design Co., Ltd., Graduate School of Frontier Sciences of The University of Tokyo, West Japan Fluid Engineering Laboratory Co., Ltd., Nippon Kaiji Kyokai (ClassNK), and Mirai Ene Planning LLC have been promoting zero-emission business utilizing wind power and hydrogen “Wind Hunter Project” (hereinafter referred to as the “Project”) since last November (Note 1).

Recently the Project successfully conducted a demonstration experiment using the yacht “WINZ MARU” in Sasebo-city, Nagasaki in Japan.

During strong wind(red arrows in the image below), the yacht use wind power to generate electricity using a underwater turbine to produce and store hydrogen onboard. Durign weak wind(blue arrows), the stored hydrogen is used at hydrogen fuel cells to generate electricity to rotate a propeller. (Fig.1)

Five experimental sailings have been conducted as of November 24 2021 and series of cycles has been successfully demonstrated: (1) power generation by ocean wind → (2) hydrogen production → (3) hydrogen storage → (4) fuel cell power generation → (5) propulsion by electric propeller. At forthcoming full-scale sailing, we will accumulate and analyze navigation data in order to verify the actual performance characteristics of various equipment and the efficiency of the yacht (plant) itself and we aim to complete the demonstration experiment (Stage 1) by March 2022.