Abstract
The policies against climate change require the reduction of greenhouse gas emissions of marine transportation. To reach the planned goals, the most promising approach is working both on ships improvement and ports redesign. The latter must enable the new green ships supply with sustainable electrical energy, by integrating shore connection systems, local renewables, and energy storage systems. In this paper, a methodology to obtain such an objective is proposed, capable of taking into account both ships’ and ports’ characteristics. The methodology workflow is explained through a case study, where two shore connection power sizes and two different operative approaches for recharging the ship onboard energy storage are considered. A discussion about the most suitable energy storage technologies is also provided. The case study shows how the methodology can be applied, as well as demonstrating that the port infrastructure has a direct effect on the ship environmental performance.
Highlights
At the present time, significant attention is being given to the environmental impact of the human activities
There may be some limitations related to the port infrastructure and to the land power system that can greatly affect the final
The methodology is aimed at defining the shore infrastructure required for supporting a given new green ship, by determining the port main elements, considering its actual and future performance, and the expected impacts in terms of route environmental-friendliness
Summary
Significant attention is being given to the environmental impact of the human activities. Agreement [1] and the International Maritime Organization (IMO) resolutions [2] push towards a significant reduction in pollutant emissions. The most challenging requirements are the ones related to greenhouse gas (GHG) emissions, which need to be reduced by at least 50% at entire fleet level by 2050 in respect to the 2008 levels, including a CO2 specific emission reduction of 70% per transport work. In addition to these demanding goals, the European Union (EU) adopted in 2021 the “Fit for 55” policy to address climate changes, to be applied on the EU area, as well as to all inbound and outbound transportation routes.
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