climate comparative building energy optimization: a retrofit approach including solar photovoltaic panels and natural ventilation

Given the importance of optimal consumption of energy in buildings, as one of the major energy consumption parts, a real residential villa was simulated in the hot and dry and also hot and humid climates in this study. the solar irradiation of photovoltaic panels was used for partial supply of energy needs of the building. the proposed strategies to improve the building and reduce its energy consumption included thermal insulators embedded in the walls and the ceiling, and replacement of simple old windows with double glazed windows equipped with temperature sensors and smart interior shadings. applying all improvement strategies, energy consumption in the building was reduced by 64% in the hot and dry climate and by 59% in the hot and humid climate. solar power could support 67.3% of electricity in isfahan and 42.3% of it in bandar abbas. among the proposed scenarios, natural ventilation was not applicable in bandar abbas as a city in a hot and humid climate.