Site selection for hydrogen underground storage using interval type-2 hesitant fuzzy sets

This study presents an interval type-2 hesitant fuzzy set (IT2HFS) based multi-criteria decision making (MCDM) method for selecting hydrogen underground storage sites in Turkey. The proposed method is utilized in a case study that aims to determine the best site among three alternatives. The results show that the proposed method can effectively and flexibly handle the interval type-2 hesitant fuzzy MCDM site selection problems. Finally, the sensitivity analysis is also demonstrated for the proposed method.