Operational advantages and limitations of battery hybrid operations

Abstract

This study deals with how engineering officers onboard a RoPax vessel perceive the operational changes that have occurred during daily operations after the implementation of lithium-ion batteries for battery hybrid auxiliary propulsion onboard. The study deals with the advantages and disadvantages experienced by the engineering officers both as a result of the conversion, as well as its impact on the emergency organization on board. The study was conducted by interviewing engineers working in the engine department onboard a Swedish RoPax vessel. The gathered data was then qualitatively analysed to answer the study's research questions. The data analysis showed that all surveyed engine officers had a positive view on how the conversion had affected them in their line of work. The main advantages of the conversion were considered to be the ability to prevent power outages, so-called "blackouts", longer intervals between maintenance and reduced fuel consumption. Possible disadvantages of the installation were the risks posed by a possible battery fire and that parts of the system were perceived as very advanced. The emergency organization underwent training on how to act in the event of a potential battery fire.