Optimizing energy consumption of residential buildings using solar panels in the climate of Tehran

In recent years, solar energy technologies have been widely studied and developed, but despite this, the acceptance of the use of solar panels on a large scale has not yet been achieved. In this research, with the help of Energy Plus software, we have been trying to determine the efficiency of solar panels according to the climatic conditions of Iran, especially the climate of Tehran city, by simulating a hypothetical 5-story building model in compliance with all the common construction standards in Let's examine Iran and finally we have done its economic analysis, which is one of the main obstacles to the use of solar panels in Iran and the concern of most employers and clients. The simulation results showed a significant reduction of 40% in energy consumption in the model building. According to the economic analysis, the use of photovoltaic solar power plant is not economically justified for employers, builders and operators, even without considering the costs related to reconstruction. One of the reasons for the uneconomical nature of the photovoltaic solar power plant is the sharp increase in the price of the dollar, which is directly related to its construction, as well as the low electricity tariff and subsidies allocated by the government in Iran.