Optimization of Shore Power Deployment in Green Ports Considering Government Subsidies

Shipping trade and port operations are two of the primary sources greenhouse gas emissions. The emission air pollutants brings severe problems to marine environment coastal residents’ lives. Shore power technology is an efficient CO2 reduction program, but it faces sizeable initial investment high electricity prices. For shipping companies, energy such as low-sulfur fuels liquefied natural has become essential supplementary means meet requirements. This research considers impact government subsidies on shore construction ship use. It constructs a multi-period dual-objective deployment optimization model based minimizing operating costs Multi-combination subsidy strategies, including unit rate demarcation line, quantitatively described measured. proposed Epsilon constraint method used transform problem. Numerical experiments verify effectiveness feasibility solution method. By carrying out “cost-environment” Pareto trade-off analysis, change efficiency this compares decision-making results construction, berthing use, selection. Government strategy operation management enlightenment in discussed.