Energy is the primary force behind life; it is inconceivable to imagine life without it. Therefore, attaining sustainability in the energy sector is a requirement for every other field and industry. Therefore, sustainability in all its forms—economic, social, and environmental—must be incorporated. With some thought and work, energy sustainability has permeated every industry. The development of fossil fuel-based energy generation sources is one of the most critical pillars in the energy industry, given the pursuit of this objective. This study aims to Explain the importance of increasing the efficiency of gas turbine stations by using part of the exhaust gas and how to apply this to raising the efficiency of the gas turbine station by using a reheated and a heat exchanger before the combustion chamber and using the combined cycle, and comparing them in terms of efficiency, in terms of operating cost, in terms of life span, Invasive through methodology combines description, application, and analysis methodologies using simulation technology. The results indicated that the heat exchanger re-reheating method increased the efficiency of the turbine station at a rate ranging from 5 to 15%, the cost of increasing the efficiency was 28%, and the life expectancy of the station was 23 years. In comparison, the combined cycle method cost 35% and increased the efficiency by a rate ranging from 6% to 18% of the turbine station. The expected lifespan is 22 years.