Environmental Analysis and Evaluation of Energy Consumption Using Hybrid System for Industrial Unit in Mianeh City
Due to the increasing costs of energy and reducing fossil fuel, the use of renewable energy is more important. In this study, the possibility of using hybrid energy systems was evaluated to supply electricity to an animal husbandry unit in Mianeh City. For this purpose, three sources including wind turbine, photovoltaics and diesel generator were evaluated in terms of environmental, technical, and economic. This evaluation was performed by Homer Energy Analysis Software, and the results demonstrated that diesel generator is the least expensive solution in compared to other conditions. Then, analysis of the results showed that hybrids of diesel generator-photovoltaic, wind turbine-diesel generator, and diesel generator-photovoltaics-wind turbine systems have low cost, respectively. But environmental results depicted that the use of triple hybrid system in condition of 38% diesel generator, 51% photovoltaic and 11% wind turbine, has lowest emissions, so that carbon dioxide emissions were reduced by 38.4% compared to single diesel. Considering the capital return index, which is a key indicator in the design of feasibility studies, the time of capital return for using a diesel generator was obtained more than three years and seven months. While this index in the condition of using diesel generator-photovoltaic was obtained less than a year, in this respect, this condition was in the first rank.
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