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Cold ironing provides for powering berthed ships in port with electricity from the national grid. A local energy production improves the self-sufficiency of the port area. This work presents an optimization model for a photovoltaic/cold ironing system. The energy demand of ferries was analyzed, taking the port of Ancona (Italy) as case study. The model returns the optimal size of the PV plant based on a Life Cycle Cost (LCC) approach. Results show that the optimal PV plant size is 2100kW and 3700kW for two scenarios with different costs. CO2 emissions saving is 64.9% and 73.1%, respectively

Cold ironing is a technology to reduce polluting emissions covering the energy demand of berthed ships in port to shut down their auxiliary engines. A feasibility study for the port of Ancona is proposed. A cogeneration plant provides electricity to ships, and the recovered heat waste is used in a district heating network. Results show that a 1.5MW and 2MW cogenerator covers 83% and 92% of the electrical need of ships respectively, and 61% and 74% of the thermal need of the involved buildings over the analysed period. The scenarios have been economically evaluated and prove to be feasible.