One of the indispensable elements of modern life is undoubtedly electrical energy. The industrial sector, which is almost identified with development, owes its establishment and development primarily to cheap and abundant electrical energy. There is a rapidly increasing demand for energy in both developed and developing countries. Turkey is a country where the production and the consumption of the electric energy are increasing gradually. As a matter of fact, while the electricity production of our country in 1975 was 16 billion kwh, this amount reached 303,9 billion kwh by 2018. In the same period, the electricity consumed increased from 16 billion kwh to 303,3 billion kwh. In 2018, Turkey generated 37,3% of its electricity from lignite and hard coal, 29,8% from natural gas, 19,8% from hydroelectricity, 6,6% from wind, 2,6% from the Sun, 2,5% from geothermal resources and 1,4% from other sources (fuel oil, diesel oil, naphtha and biomass). The external dependence on natural gas and hard coal, energy sources used in production, constitutes the main threat in terms of energy security. Lignite coal, uranium and renewable energy sources such as hydropower, wind, geothermal and solar energy are seen as opportunities. The rapidly increasing demand for electrical energy and the external dependence on natural gas in particular among the energy sources used in production threaten the energy security and sustainable development of our country. In this context, the purpose of this study is to analyze Turkey’s electricity generation and evaluate possible opportunities/threats. In this qualitative study, document review was used as data collection method.