In a significant stride towards understanding the safety of battery electric ships (BESs), a comprehensive review has been published in the International Journal of Naval Architecture and Ocean Engineering (IJNAOE), the English translation of the Chinese journal. The study, led by Ruoling Zhou from the School of Transportation and Logistics Engineering at Wuhan University of Technology, sheds light on the complex risk factors associated with BESs and offers valuable insights for the maritime industry.
As global environmental policies push for greener alternatives, BESs are poised for rapid development. However, their safety risks are more intricate than those of traditional ships, posing challenges for current risk assessment methods. Zhou and the team systematically identified key risk factors from four dimensions: seafarer, ship, environment, and management. They found that seafarer and ship risks directly influence safety and demand higher technical standards, while environmental and management risks have indirect effects.
The study recommends differentiated assessment methods for single-component failures. For instance, process-based analyses are suggested for seafarer risks, component-focused approaches for batteries, motors, and electronic systems, and dynamic hazard identification for charging facilities and environmental factors. For overall ship safety, comprehensive risk assessment frameworks are advised.
Zhou emphasized, “Current risk assessment for BESs faces challenges related to limited data, immature models, and insufficient regulations.” The study underscores the need for gradual accumulation of accident cases and risk datasets, along with developing quantitative assessment methods that can capture interdependencies among risks.
The findings have significant commercial implications for the maritime sector. As the industry transitions towards greener technologies, understanding and mitigating risks associated with BESs is crucial. The study’s recommendations can guide shipbuilders, operators, and regulators in enhancing the safety of BESs, thereby fostering confidence in this emerging technology.
Moreover, the study highlights opportunities for innovation in risk assessment methods and preventive measures. For instance, optimizing battery design and enhancing seafarer competencies are targeted prevention measures proposed by the study. These areas present opportunities for maritime training institutions, technology providers, and other stakeholders to develop new services and solutions.
In conclusion, this systematic review provides a solid foundation for improving the safety of battery electric ships. As the maritime industry continues to evolve, such research will be instrumental in navigating the challenges and opportunities that lie ahead. The study was published in the International Journal of Naval Architecture and Ocean Engineering, a leading journal in the field of naval architecture and ocean engineering.