Analyzing the Energy Consumption of OECD Countries Through an Interval-Valued Circular Intuitionistic Fuzzy Ahp-Based Cradis Approach

The complexity of energy management and policy development is increasing and it necessitates the use of multi-criteria decision-making (MCDM) approaches to offer solutions in concern to various energy sources and assessment criteria. In this context, an example is demonstrated, the interval-valued circular intuitionistic fuzzy (IVCIF) AHP-integrated CRADIS methodology, to evaluate the energy consumption performance of the OECD nations. This article discusses six basic criteria concerning primary energy consumption, hydroelectric consumption, wind consumption, coal consumption, gas consumption, and oil consumption. There is thus a variactivation analysis among the analyzed criteria; less critical criteria share the stage with the primary energy consumption criteria, including hydro and wind energy in the category of renewable energy sources. As discussed in the results, criterion weight increases for fossil fuels, whereas less weight is given to coal, gas, and oil compared to other categories. There are distinct differences in the energy efficiency achieved by OECD countries. Among the countries, effective energy management strategies and their implications present significant positive results in the case of Canada, Germany, and Japan, while the United Kingdom and France have relatively robust energy programs fostering practices in sustainable living. In contrast, the dismally performing country must be Hungary, with the Czech Republic, Greece, and Slovakia also not too promising, given the general profile. The study underscores the influence of the IVCIF-AHP&CRADIS approach to offset the complexity of assessing energy and channel the data-oriented policymaking agenda. This systematic prioritizing of the various criteria, with respect to energy consumption, will permit a comprehensive understanding of the relative strengths and weaknesses in energy practices across OECD countries. The result will be a policy-effective outcome for the policymakers, as well as an incentive to further develop energy efficiency and renewable energy. It is one of the reasons certain strategies are focused on enhancing general sustainability within the OECD framework.