Wu, P; Bucknall, RWG; (2016) Marine propulsion using battery power. In: (Proceedings) Shipping in Changing Climates Conference 2016.

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Abstract

Abstract: The global demand to reduce CO2 emissions requires effort from the shipping industry which currently emits about 2% of anthropogenic global Greenhouse Gases (GHGs) and which is predicted to increase due to growth of world trade. Therefore, it is important to find new ways to reduce CO2 emissions from shipping using new operational strategies, improved ship designs and new technologies. Battery technologies have been developing rapidly leading the road transport industry into a greener future with hybrid and electric vehicles but such a change is not so apparent in the shipping industry. This paper provides an overview of the state of the art battery technology and important future developments that may potentially exploit batteries in future ship’s power and propulsion systems. Through case studies, the paper assesses the applicability of battery power to ships, more specifically small ones. Approximately 14,000 ships, 22% of the global commercial fleet are below 400 gross tonnes, most of which are small coastal ships, e.g. tugs and passenger ships/ferries. Existing battery-powered ship system configurations are summarised; battery developments are considered, impacts of battery application on ship performance are discussed in the paper supported by a case study.

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