The depletion of conventional fossil fuel supplies and the growing global population necessitate a significant reduction in energy use and harmful emissions. High sun radiation in the Mediterranean region increases summer overheating, and results in increasing energy expenditures and building emissions. But, this also presents an opportunity for solar energy systems, as building designers see photovoltaic integrated shading devices (PVSD) as an innovative and environmentally friendly solution for multi-story cities with limited rooftop space. Integrating a photovoltaic (PV) system into a building's exterior is a challenging process that, if not done correctly, might lead to the PV system failing. Consequently, it's crucial to assess alternative design options' energy performance from the initial planning stages. Therefore, the purpose of this study is to examine and evaluate the potential effects of different PVSDs on the energy efficiency of apartment complexes in the Mediterranean area. In order to accomplish the study's goal, computer simulations were conducted to evaluate and compare the energy consumption of various configurations of PVSDs. Additionally, a comprehensive energy index was established by considering several energy factors, including the energy demand of the building and the energy generation of the photovoltaic system. Based on the results obtained, it has been determined that the PVSD system is capable of satisfying a range of 25.1% to 35.6% of the electricity demands of the apartment complex. This study makes a significant contribution to the field of sustainable innovation, highlighting its potential to address the urgent need for emission reduction and energy conservation.