Building integrated photovoltaic (BIPV) systems have significant advantages and potential for widespread use in buildings. These systems are popular among architects and design engineers today. Despite these cases, so far no feasibility study has been performed on the supply of electricity and heat required for the building of a residential apartment in Iran using solar energy in the facade of the building. Therefore, in the present work, a 5-storey apartment in Abadan has been evaluated using TSOL Pro 5.5 and HOMER 2.81 simulation software. The solar power generation system is connected to the national electricity grid and the solar heat generation system uses a gas boiler as backup. The results showed that 55% of electricity generated, ie 6077 kWh/year is generated by the solar system connected to the grid and 7.4% of the total heat required, ie 1604 kWh/year is supplied by the solar collector system. About 1.3 tons of CO2 emissions are generated annually due to the use of the national electricity grid. Performing accurate energy-technical-environmental analysis makes the results of the present work with high accuracy correspond to reality. Manuscript profile