Fully Electric Vessels For Short Distance Routes: Technical and Operational Considerations
Malmberg, Felix (2025)
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-2025121536242
https://urn.fi/URN:NBN:fi:amk-2025121536242
Tiivistelmä
This study examines the technical and operational feasibility of replacing a conventional diesel-powered vessel with the fully electric Callboat Cat16L on the Porvoo archipelago route in Finland. The vessel must operate reliably within the existing timetable, making range, charging capability, and operational endurance critical factors. To evaluate this, the full weekly schedule was imported into Microsoft Excel, where route distances, required speeds, and energy consumption were modelled using established formulas and manufacturer data. Weather effects, auxiliary loads, and seasonal variations were also considered to assess realistic operating conditions.
The calculations show that the vessel can operate the route without interruptions if charging procedures and harbour-side infrastructure are appropriately designed. The Depth of Discharge (DoD) analysis further indicates that the battery's lifecycle remains within acceptable limits for long-term operation. The study highlights the importance of optimised transit speeds, opportunities for intermediate charging, and proper planning of battery management to ensure stable performance throughout the week.
Overall, the findings suggest that a fully electric vessel can feasibly replace the existing diesel vessel on this route, offering a viable and environmentally favourable alternative. The study also identifies key operational challenges—such as energy management in adverse weather and the need for reliable charging systems—which must be addressed to support successful long-term implementation.
The calculations show that the vessel can operate the route without interruptions if charging procedures and harbour-side infrastructure are appropriately designed. The Depth of Discharge (DoD) analysis further indicates that the battery's lifecycle remains within acceptable limits for long-term operation. The study highlights the importance of optimised transit speeds, opportunities for intermediate charging, and proper planning of battery management to ensure stable performance throughout the week.
Overall, the findings suggest that a fully electric vessel can feasibly replace the existing diesel vessel on this route, offering a viable and environmentally favourable alternative. The study also identifies key operational challenges—such as energy management in adverse weather and the need for reliable charging systems—which must be addressed to support successful long-term implementation.