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Green transition of the tourist port of Rhodes with the energy supply of cruise ships by solar energy

Selimas Christos

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Summary

The global transition to green shipping has become an obvious and inevitable phenomenon in recent years, with ports facing the substantial impact of climate change on the management of the shipping industry from an energy perspective. Energy upgrading strategies are constantly emerging, promoting sustainable operations and seeking to reduce the ecological footprint through the zero emission of pollutants from the ships in port. These efforts are continuously reviewed and incorporated into the fundamental operating conditions, highlighting the need for innovative practices and technologies that will shape the future of the shipping industry.In this thesis, both the conversion of a tourist port into a more environmentally friendly one, with the reduction of polluting exhaust gases, and the ability to acquire autonomous operation through land-based solar energy supply. By investigating and evaluating the current methods for the implementation of various technologies, energy sources, the amount of energy consumed by the docked cruise ships from realistic data, four different alternative modelling scenarios were examined using appropriate software. The regulating factor of the scenarios are the choice of the siting sites and the size of the photovoltaic system (PS) siting, the energy offsetting of the produced-consumed energy with the local power grid (net-metering) while the common factor is the land-based energy supply system (cold ironing). The scenarios were then compared with each other, selecting the environmentally and economically optimal one, focusing more on the environmental criteria. Thus, the optimal scenario was shown to almost eliminate the operation of the port-cruise system completely from conventional energy sources by replacing a large part of the energy needs with the electricity generated by the PS.In addition, greenhouse gas (CO2) emissions were eliminated on a local scale by transferring the exhaust emissions from the cruise ship smokestacks to the local power plant. However, these emissions have been significantly reduced, to the point of zero, using PS. Finally, concluding this study, some future ideas are proposed which can be applied to similar scale ports with a combination of cruise operation for their further "green" upgrading.

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