A hybrid tool to combine multi-objective optimization and multi-criterion decision making in designing standalone hybrid energy systems

► Mathematical modeling and simulation of a standalone hybrid energy system. ► Multi-objective optimization (MOO) considering techno-economical and environmental aspects. ► Using Fuzzy TOPSIS as a multi-criterion decision making (MCDM) technique. ► Proposing a decision making tool to combine MCDM, MOO and level diagrams. ► A case study using novel technique.