Electrification of fishing vessels and their integration into isolated energy systems with a high share of renewables

Decarbonization is among the most important research topics in the maritime sector, where different technical and operational measures are being examined to enhance the sustainability of marine operations. Electrification of fishing vessels stands out as a solution towards reducing emissions and operating costs. However, sustainable decarbonization of fishing vessels requires a high share of renewable energy sources (RES) in the power sector. It is also challenging to achieve the sustainable decarbonization of fishing vessels operating in an isolated energy system (IES) in remote areas. The novelty of this study is to demonstrate the opportunities arising from the nexus between fully electric fishing vessels and photovoltaic (PV) power systems in the IES of an island. The study highlights the economic and environmental benefits of integrating all-electric fishing vessels in the IES with 100% RES. The energy modelling of the IES was simulated in the EnergyPLAN. The paper confirms that charging battery-powered electric fishing vessels in the fishing port can reduce the critical excess of electricity production (CEEP), operating IES costs, and the emissions of CO2. The presented mathematical model is applicable to other ship types and renewable-based IESs if the input data required for such simulations are known.