International Journal of Neutrosophic Science IJNS 2690-6805 2692-6148 10.54216/IJNS https://www.americaspg.com/journals/show/2273 2020 2020 Choice Optimal Fuel Alternative in Thermal Power Station Using Neutrosophic Set and MCDM Methodology Docente de la carrera de Software de la Universidad Regional Autónoma de los Andes (UNIANDES), Ecuador Edmundo Jalón Arias Docente de la carrera de Software de la Universidad Regional Autónoma de los Andes (UNIANDES), Ecuador Luis Freire Lescano Docente de la carrera de Automotriz de la Universidad Regional Autónoma de los Andes (UNIANDES) Sede Santo Domingo, Ecuador Giovanny Pineda Silva Tashkent state university of Economics, Tashkent, Uzbekistan Maha Ibrahim In a power plant, the fuel choice directly impacts the efficiency, cost, and ecological impact of generating electricity. For power plants to produce electricity effectively and affordably to fulfill the needs of consumers in homes, companies, and communities, they need a fuel supply that is constant, dependable, and inexpensive. In this study, we used the concept of multi-criteria decision-making (MCDM) to deal with the various criteria of fuel alternatives. We used the EDAS method as an MCDM methodology to rank the fuel alternatives and select the best one. The EDAS method is employed with the interval-valued neutrosophic sets (IVNSs) to deal with the uncertainty information in the evaluation process. We compute the weights of the criteria of thermodynamic parameters. We used ten thermodynamic parameters such as temperature, mass, energy, etc. Then, the principal results show that temperature is the best criterion, and the work interaction is the worst criterion in all criteria. The EDAS method ranked twenty alternatives. The results show that alternative 20 are the best and alternative 14 is the worst of all alternatives. We employed the sensitivity analysis to show the rank of alternatives under ten cases. The results show the 20 alternative is the best in all cases. The results are stable.     2024 2024 216 229 10.54216/IJNS.230119 https://www.americaspg.com/articleinfo/21/show/2273