In this paper, the Turkish energy production sector is studied and power plants fueled by natural gas, imported coal and nuclear power are compared in terms of long-term (1996-2010) production economy. A net present value model is used for comparing nuclear. coal and natural gas power plants. A scenario approach is utilized in establishing the effects of different factors, such as inflation rate, unit investment costs, load factor change, discount rate and fuel price changes; Six different scenarios of interest:are developed and discussed. The study ends with conclusions and recommendations. based on a study of a reference scenario and alternative scenarios,