Technical and economic analysis of employing variety of renewable energy in buildings, taking into account different climatic conditions

This paper will examine the technical examine the technical and economic optimization of renewable energy for residential buildings. Due to climate conditions, different cities have a different potential for the use of renewable energies. For this study, the optimal model using HOMER software for an apartment with a maximum power consumption of 63 kW and 393 kWh of energy per day provided. The cost and useful life of the equipment, whichever is investigated. The cost of diesel fuel, solar radiation and wind speed, sensitivity was considered as variables and sensitivity analysis was performed. Simulations are carried out starting from hourly local load demand, wind speed data, approximate solar radiation, and energy market. Various configurations and various available contracts for obtaining energy from the different sources are analyzed and compared. The results show that Esfahan has the potential for reduction of energy cost, pollutant and dependency on the grid, along with substantial economic benefits. For this city, the combination of diesel generators and solar panels with battery and inverter, as the most appropriate way to provide such a power can be exploited. Also, this work has showed that Yazd is a good selection for using renewable energy, without considering diesel generator.