Asahi Tanker and partner Exeno-Yamamizu Corporation Tokyo have jointly developed a new domestic shipping tanker design with zero-emission electric propulsion.
The vessel design and related project infrastructure development will be known as ‘e5’ which captures five core elements of sustainable shipping, including:
Electrification – The ship will use electricity as its core energy source by adopting lithium-ion batteries.
Environment – Air emissions such as CO2, NOx, SOx will be reduced, while noise and vibration at sea and in port will be minimised through improved vessel operation controls.
Economics – IoT and digital tools coupled with improved propulsion performance from using electricity will achieve economic efficiency.
Efficiency – Simple hull construction and installment of automated equipment to reduce work load for the crew.
Evolution – Digitalisation and technological advancement will lead to the most advanced design concept for the future of domestic shipping.
The e5 commercial model design is underway for all bunker supply vessels trading in Tokyo Bay. The first vessel, which is expected to be launched in Q4 2020, will be 60m long, 10.3, wide, include 2 x 350 kW azimuth thruster, 1 x 130 kW bow thruster, have a GT of 499 tonnes, and a cargo tank capacity of approximately 1,300m3. The vessel will be registered in Japan and the concept designer will be Groot Ship Design (Hull).
ClassNK will make technical advice on the vessel’s design and electric propulsion.
The project is also working for creating e5 coastal vessels, which would require longer cruising range.