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Electric propulsion refers to propulsion using a combination of an electric motor and batteries. Electric motors powered by batteries represent a significant solution within the broader context of sustainability, energy efficiency, and technological advancement. As energy containers, batteries are characterized by low energy and power density and are currently not considered suitable for use on large displacement ships. Consumption of electric ships depends on numerous factors and the performance of the vessel's energy system requires great attention. The basic limitations are the ship’s size and speed, the built-in capacity of the batteries, charging infrastructure, and sailing distance. These limitations are discussed and justified in two case studies in which the existing diesel-powered ships are replaced with electric ones.
Slapničar et al. (Tue,) studied this question.