Risk assessment of a battery-powered high-speed ferry using formal safety assessment

Wang, Haibin and Boulougouris, Evangelos and Theotokatos, Gerasimos and Priftis, Alexandros and Shi, Guangyu and Dahle, Mikal and Tolo, Edmund (2020) Risk assessment of a battery-powered high-speed ferry using formal safety assessment. Safety, 6 (3). 39. ISSN 2313-576X

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    Full electric vessel has been widely developed, investigated and evaluated as a potential solution to fulfil the restrict emission control strategy from International Maritime Organization. It requires the marine industry, to reduce 40% of carbon dioxide emission by 2030 and 50% of greenhouse gases by 2050. The investigations of full electric vessels are resulted to the maturity of Lithium battery technology and most of studies are focusing on its environmental impact and economic benefits. There is no studies on the application and operation of battery system for actual ships. It is because the application of battery system could lead hazards during the ship operation. This paper provides an initial risk assessment for a selected battery-powered full electric vessel perated in Stavanger, Norway. Through identifying hazards and estimation of frequency and consequences, the most severe hazards will be determined. The associated top events will be analyzed by carrying out event tree analysis to evaluate the reliability of the vessel. The results indicate the application of battery power system has a lower risk impact comparing to traditional cruise ships. It is also recommending that risk assessment of full electric vessel should be mandatorily including the risk impact evaluation on the battery power system application into related rules and regulations