The aim of present article is to investigate use of renewable sources for energy in Turkey. Turkey also has a large potential for renewable energies. Turkey has a considerably high level of renewable energy resources that can be a part of the total energy network of the country. The most important renewable sources for Turkey's energy sector are solar in its various forms, wind, biomass, hydro, and geothermal. Renewable sources are the second largest source for energy production after coal. About two thirds of the renewable energy produced is obtained from biomass, while the rest is mainly from hydroelectric energy. In 2003, 25.18% of total electricity production was provided by hydroelectric energy. According to the estimates of the Turkish Ministry of Energy and National Sources, an increase in the production of renewable energy is expected, while a decrease is predicted in total energy requirements.