امكان سنجي اقتصادي جايگزيني CNG به جاي بنزين در تاكسي هاي شهر تهران

Economic Feasibility Study of Substituting Gasoline with CNG in Tehran fs Taxis

Rapid and increasing growth in gasoline consumption and huge natural gas reserves of I.R.Iran - which has positioned the country as the second biggest owner of natural gas reserves - has caused substitution of gasoline with Compressed Natural Gas (CNG) to be the most important priority in the countryʹs energy sector. Tehranʹs taxi fleet as a public transportation facility is one of the main gasoline consumers. Replacement of CNG for gasoline in the sector can be an effective motivation to generalize and speed up development of CNG industry and itʹs usage. Nevertheless doing an economic feasibility study is the main principle of such projects in both national and regional levels. In this article, after reviewing the current and existing infrastructures of natural gas production, transportation and distribution, the last situation of CNG industryʹs development - in the point of national and international view is studied. After that and following a short discussion about the theoretical principles of economic feasibility study, software model of the economic feasibility study which is designed in Excel format along with its results are analyzed in some different scenarios. Results show that replacement of CNG in Tehranʹs taxis is feasible in the point of economics view. Meanwhile altering some of the effective parameters of model (including gas consumption after substitution, Capital expenditures, and natural gas and gasoline prices) in possible scenarios and its effects on the projectʹs economic feasibility are evaluated and some suggestions and recommendations - based on the results - are offered