Japanese classification society ClassNK has granted approval in principle (AiP) for the design concept of a hydrogen-fueled engine-compatible oil tanker featuring an electric propulsion system. Developed by Uyeno Transtech, Yanmar Power Technology, and Mitsui E&S Shipbuilding, this project is part of the Nippon Foundation’s initiative for developing large-scale hydrogen-fueled domestic tankers and demonstrating zero-emission ships. ClassNK’s certification marks a global first for an AiP for an oil tanker designed to use liquefied hydrogen as fuel. The approval process involved a thorough review of the design concept against ClassNK’s guidelines, including those for ships using alternative fuels and fuel cell power systems onboard ships, underscoring advancements in sustainable maritime technology.



