Fly ash samples collected from main thermal power plants of Turkey such as Sivas-Kangal, Ç ay|rhan, Tavs°anly´, Tunc¸bilek, Soma-B, Seyito¨mer, Yatag˘an were analyzed by elemental SEM-EDS and their secondary electron images were taken. With EDS analyses, some elements such as Si, Ca, Mg, Na, K, S, Fe, Al, Zn, Nb, Ti, and Pu were determined on fly ash samples. The ranging amounts of major elements for different plants were discussed. The radioactive element is observed only for two locations.