ABSTRACT: This article described the equations used to assess the impact of green fuels on shipping costs and provided a numerical example for Saudi Arabia to illustrate these equations. Using these equations, we can conclude that the use of green fuels in the shipping industry will result in significant cost savings. Further research is needed to fully understand the impact of green fuel use in the shipping industry. The use of environmentally friendly fuels in ship operations has grown in importance in recent years due to their potential to reduce emissions and costs. This article described the equations used to show the impact of green fuels on transportation costs, using the example of Saudi Arabia to illustrate potential savings and benefits. Additionally, this article discusses the relevant scientific references that support the findings. In summary, the use of environmentally friendly fuels is an intelligent solution for reducing costs and emissions in transportation operations. This article examines the impact of green fuels on ship operating costs by presenting the equations for a proof-of-concept mathematical approach. Additionally, the example of Saudi Arabia was used to illustrate the impact of green fuels in Saudi Arabia. From this, it can be concluded that the use of environmentally friendly fuels leads to cost savings in voyages and is therefore a sensible option for reducing the operating costs of ships.

KEYWORDS: Maritime Transport, Mathematical Model, Fuel Consumption, Emission Reduction, Energy Efficiency Design Index (EEDI), Green Fuel, Energy Efficiency, Carbon Dioxide (CO2)

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