Developing a new methodology for evaluating diesel—electric propulsion

In this paper a methodology for the design of ships with a diesel-electric propulsion system, according to the All Electric Ship concept is presented. Taking into account that there is no long and extensive relevant experience for all ship types, diesel-electric propulsion should be selected after careful consideration and thorough evaluation of many technical and economic parameters. This paper offers a step-by-step procedure towards this direction; the discussion is enriched by a case-study of a ship type, where the selection of the proper propulsion system is not straightforward as many parameters have a substantial impact.