University of Tehran Press Journal of Ecohydrology 2423-6098 4 4 2017 12 22 Economic and Environmental Analysis of the Small Hydropower Plants Development Economic and Environmental Analysis of the Small Hydropower Plants Development 1255 1268 63271 10.22059/ije.2017.63271 FA Hassan Jangavar Ph.D., candidate of Oil and Gas Economics &amp;ndash;Economic faculty- Allameh Tabatabaei University Younes Noorollahi Associated Professor, Dep. of Renewable Energies and Environmental Eng., Faculty of New Sciences and Technologies, University of Tehran Ali Emami Meybodi Associated Professor, Faculty of Economics, Allameh Tabataba&#039;i University, Tehran, Iran Journal Article 2017 04 18 The necessity to preserve the environment and the depletion of fossil fuels for energy production have concerned human attention to the use of alternative and renewable sources. Hence, hydropower plants development is one of the solutions that are using in countries. Since the hydropower plants division into small and large scale, economic and environmental factors plays an important role in choosing the optimal scale of hydropower plants.<br /> In this study, an analytical and comparative method use in order to determine the economic and environmental effect of the construction of small hydropower plants and their comparison with large hydropower plants. The results indicate that small hydropower plants; in addition to being able to use the minimum potential of water; are economically and environmentally advantages of in comparison with large hydropower plants. Some of the main advantages of small hydropower plants that differentiate them from large hydropower plants are: low investment costs, shorter construction time, reduced greenhouse gas emissions, the proper dispersal of units, enabling capacity for technology transfer and private sector investment capability. These advantages have led small hydropower to be considered as a good alternative to large hydropower plants. The necessity to preserve the environment and the depletion of fossil fuels for energy production have concerned human attention to the use of alternative and renewable sources. Hence, hydropower plants development is one of the solutions that are using in countries. Since the hydropower plants division into small and large scale, economic and environmental factors plays an important role in choosing the optimal scale of hydropower plants.<br /> In this study, an analytical and comparative method use in order to determine the economic and environmental effect of the construction of small hydropower plants and their comparison with large hydropower plants. The results indicate that small hydropower plants; in addition to being able to use the minimum potential of water; are economically and environmentally advantages of in comparison with large hydropower plants. Some of the main advantages of small hydropower plants that differentiate them from large hydropower plants are: low investment costs, shorter construction time, reduced greenhouse gas emissions, the proper dispersal of units, enabling capacity for technology transfer and private sector investment capability. These advantages have led small hydropower to be considered as a good alternative to large hydropower plants. https://ije.ut.ac.ir/article_63271_5be2a6b510ba19399a55da80085c1159.pdf