The demand for electrical energy in Turkey, which is increasing due to population growth and industrialization like in the rest of the world, can only be met by either increasing the amount of energy produced with existing resources or by reducing energy consumption, on the basis of energy efficiency at every stage of production to consumption in other words. Use of primary energy resources in Turkey, which has to meet a large portion of its energy needs through imports, between the years 2000-2009 was examined with the Malmquist total factor productivity index (MPI). The analyses determined a decrease of 5.4% in electrical energy production due to inefficient use of indigenous resources and the current installed capacity. This study can be considered as an effort to draw attention to use of indigenous resources in terms of both contributions to the national economy and energy security.