Enhancing Energy Efficiency in Mediterranean Residential Buildings: The Role of Double Façades and Photovoltaic Systems

This study investigates the potential of double façade systems integrated with photovoltaic technology to enhance the energy efficiency of residential buildings in Mediterranean climates. Using a one-bedroom studio module in Nicosia, Cyprus, various configurations of conventional double façades, building-integrated photovoltaics, and photovoltaic thermal systems were analyzed. The study simulated thermal loads and primary energy consumption using EnergyPlus and DesignBuilder, examining different cavity depths to optimize performance. Results indicate that BIPV/T systems significantly reduce both heating and cooling loads, achieving the best overall energy performance. The optimal cavity depth of 0.97 m not only minimized energy consumption but also provided additional usable space. These findings underscore the importance of integrating renewable energy technologies in urban planning to meet nearly zero energy building standards.