Optimal Design of a Port Integrated Energy System: A Cost Modeling Framework

This paper proposes a cost modeling framework for the optimal design of a Port Integrated Energy System (PIES). First, a concept of PIES is introduced to promote green energy transition in the marine domain, incorporating shore power, energy storage systems (ESS), and alternative fuel scenarios. Then, a cost model is established providing an assessment of Capital Expenditures (CAPEX) and Operational Expenses (OPEX). The developed model enables optimal design scenarios such as sizing of the power and energy sources and optimal load sharing. Hence, the model is extended to include the development of an energy management system (EMS) that ensures optimal load sharing between the power sources. This approach not only refines the system design but also enhances operational efficiency, towards the economic and sustainable operation of marine ports.