Özet:

This study aims to rank alternative sustainable energy systems and to present the most convenient one utilizing a MCDM methodology based on integration of intuitionistic fuzzy ELECTRE and VIKOR methods. Four experts on sustainable energy have assessed the alternative energy systems, namely biomass, solar and wind energy systems according to sustainability criteria, which are divided into 4 main categories, namely environmental, social, economic and technical. In this scope, 16 sub-criteria are determined and the values of these sub-criteria are determined by the experts using linguistic variables expressed by intuitionistic fuzzy numbers. The weights of decision makers and criteria with significant contribution on the ranking procedure are specified via Entropy method. The methodology reveals that Solar Energy is the most convenient energy system for Turkey, whereas the ranks of wind and biomass systems change according to different decision making strategies.