Today, different methods are used to generate electricity. However, in Iran thanks to the rich resources of oil and gas, the use of fossil fuels for generating electricity is more economical and more conventional. For this reason, thermal power plants are considered as the main source of electric power generation in the country, and as the main consumer of fossil fuels; hence can be regarded as potential sources for savings and optimization of fossil fuel consumption. Considering that more than 90% of the country's electricity needs are supplied by thermal power plants, we believe that the quality of power plants and their high efficiency will play an important role in the electricity production of the country.
In fact, if the efficiency of the thermal power plants increased by one percent, the electricity grid of the country can save an investment cost for construction of a 600 MW power plant, and fuel consumption will also decrease by at least 1%. In this case, due to various fuel inputs of thermal power plants, it is expected to save 503 million cubic meters of natural gas, 95 million liters of gasoline and 178 million liters of fuel oil consumption. The points presented above all confirm the economical investing more in the area of modernization and improvement of thermal power plants, and existing incentive for the management team to develop their activities in the field of refurbishing and improving the capacity of thermal power plants.