The aim of global energy sustainability implies the replacement of all fossil fuels (oil, coal, natural gas) by renewable energy sources. Renewable energy is the energy coming from natural resources such as sunlight, wind, rain, tides, and geothermal heat, which are renewable (naturally replenished). Renewable energy sources should be first converted to electricity and then can be transferred to the place of use. However, the problem of matching the supply to meet the demand requires the efficient storage of energy. This calls for the development and the application of the energy storage devices / technologies. Since comparison of energy storage options is a multi-criteria decision making problem, we have attempted to compare of energy storage options by using Fuzzy TOPSIS method in this study.