In this paper, we identify the mini-model in the space of the state of the problem of evaluating alternative hydropower systems on the Drina River. The COMET method was used for this purpose. This method focuses on identifying decisional hyper-surface in the presence of conflicting criteria. For this purpose, the expert makes comparisons in pairs of the indicated characteristic objects. Based on hyper-surface, we can rank alternatives and choose the best one. The alternatives were taken from previous work using the VIKOR method. Unlike the VIKOR method, the COMET method does not require weighting and is resistant to the rank reversal phenomenon. Finally, the results obtained using both ways were compared by using similarity coefficients.
