Large-scale electricity generation provides versatile energy of the highest quality. Today, fossil fuels such as coal, oil, and natural gas are the primary sources of this energy. However, these fossil energy sources are limited and using fossil energy sources has the undesirable effect of releasing emissions that burden the environment and alter the climate. Therefore, governments and companies all over the world should find new and renewable energy sources. On the other hand, over the past two decades, power station construction programs in the developing countries accounted for nearly 30 % of total public investment. In a large number of these countries, shortages of electricity have become a critical constraint to economic growth. In Turkey, from 1980 to 1995, the amount of electricity generated increased about fourfold from 23,275 Gwh to 86,247 Gwh, and annual growth rates were in the double digits. This is a good development, but not enough for Turkey.