Skylight Application for Natural Lighting in a Building; the University of Tehran Branch of Melli Bank Case Study

This study investigated the quality and potential lighting energy savings in a
bank building retrofitting project in Tehran by using solar passive lighting. The
retrofitting scenarios are based on OFFICE project findings. Despite the increase in
occupancy and service quality of the bank after retrofitting, the peak electricity
consumption significantly decreased (approximately 20%). The results showed that even
the proper solar passive lighting in most of day hours had been enough to satisfy the
existing building luminance before retrofitting due to the initial passive design of the
building, however, by retrofitting and improving the lighting system using skylight and
artificial lighting the quality of lighting increased meaningfully to cover the standards of
lighting for precision activities required for banking.