A Novel Interval Type-2 Fuzzy MCDM Model for Evaluation of Suitable Systems of Renewable Sources from Financial and Sustainable Aspect

Growing concern for the environment and natural resources has imposed the importance of utilising renewable energy sources (RES) for electricity generation.Various RES systems are increasingly being used in practice.However, the territory of the Brko District of BiH lags behind the entities of BiH in the application of RES.Based on that, this research aims to answer the question of which RES systems has the best indicators for future investments.To achieve this, a methodology based on interval fuzzy 2 logic with the PIPRECIA (PIvot Pairwise RElative Criteria Importance Assessment) and RAWEC (Ranking Alternatives with WEights of Criterion) methods was used.These methods utilised experts' ratings based on linguistic values.The results of this approach showed that the criteria return on investment, environmental impact, and investment costs are more important than the other seven criteria according to the experts' ratings.The results also showed that the RES systems Wind Farms is the best among the five alternatives used in this research according to experts' ratings.The obtained results were confirmed by comparative analysis and sensitivity analysis.This research provides guidelines for improving the application of RES systems in the territory of the Brko District to make it competitive with other local communities and entities in terms of electricity generation from RES systems.