Economic Evaluation

Currently, distribution of various types of petroleum products is performed exclusively by the government. The high price of land in metropolitan cities, lack of incentive for the private sector to invest in construction of filling station due to the low-income, have caused filling stations to be insufficiently available. One of the solutions to overcome this obstacle is to use the ability of the private sector for distribution of petroleum products. To reduce the government's ownership, the market structure for petroleum products distribution in the country needs to be changed. This change should be firstly done gradually and step by step, and secondly, the government has to monitor this issue at various stages. In this study, three stages are proposed for the market restructuring of the petroleum products distribution in the country, and the conditions and requirements for each stage are separately identified. For the private fuel distributing companies, the most important problem is the economic issue and having profit. On the other hand, since the product price is still subsidized in the country, therefore, it is indispensable that the amount of commission fee should be determined in such a way that the activity for private companies is economically justified. In this study, the amount of products commision fee is calculated concerning capital and operatational expenditures, using the engineering economics method in different situations by COMFAR version 3 software.

The purpose of this research is to select the best energy supply methods for blockchain technology and to optimize the use of each of the selected methods.For this purpose,a two-part hybrid approach based on best-worst multi-criteria decision making methods,VIKOR method and mathematical programming model has been used under uncertainty conditions.To implement this approach,first by reviewing the literature,the effective criteria in selecting the best method were extracted and then,the options or energy supply methods using blockchain technology were determined based on the experts’ opinion.Finally,the weight of the criteria and the final ranking of the selected options were determined by the best-worst and VIKOR methods, respectively.In the second part,in order to determine the optimal amount of using available facilities for blockchain technology to implement the selected method,a robust mathematical model is designed in which the NPV criterion is used as an economic evaluation measure of using the selected method in the first part. was taken As the obtained results show,the criteria of "implementability"and"productivity level"and"coordination with consumption pattern correction policies"have the highest level of importance with the weight of 0.339, 0.14and 0.14, respectively,in order to choose the best option.Also, the best score compared to other options belongs to the energy supply method"electricity generation from the combined use of national grid and solar panels".Solving the mathematical model shows that the highest level of economic efficiency belongs to the use of solar panels to provide a significant part of the need for power.