A comprehensive analysis of hydrogen refuelling station incidents: Unveiling contributing factors

Safe design, operation, and maintenance are paramount for preventing accidents in hydrogen refuelling stations and ensuring a reliable hydrogen supply. In this sense, existing operational data can be used as a learning tool to identify and address weaknesses, paving the way for a safer and more efficient hydrogen future. By analysing data from international event databases, this study aims to identify the contributing factors influencing events at hydrogen refuelling stations. A novel objective analysis protocol is formulated to examine 211 events. This analysis has permitted the establishment of a comprehensive inventory of incident contributing factors and sub-factors. A key outcome of this research is the creation of quantitative parameters that highlight the impact of the different contributing factors on hydrogen refuelling stations operational practices. The study identifies key processes and activities that contribute to incidents, such as those in the design phase or related to human performance. The knowledge provided empowers the development of more robust safety protocols and operational procedures, ultimately contributing to a safer and more reliable hydrogen infrastructure.