This study investigated the optimization of thermal energy consumption using electrochromic
components with a new nanocomposite layer (WO3+Ag) in a larger size (window) for a room
with an educational application for five cities with different climatic conditions in Iran (Yazd, Tehran,
Bandar Abbas, Tabriz, and Sari). For this simulation platform, the software was implemented in Energy
Plus. This feasibility study was modeled by DesignBuilder software which reported reduced thermal
energy consumption across all climates in Iran (hot and dry, warm and semi-humid, warm and
wet, moderate and dry, and mild and humid.). Four strategies were considered for better comparison.
The first strategy used for common double-glazed windows, while the second to fourth strategies involved
the use of the electrochromic window in three different modes; bleached mode (Off), colored
mode (On), and switchable mode (controlled below comfort conditions). The third and fourth strategies
indicated a reduction in thermal energy consumption in different climates from 25 to 45% relative
to typical windows. The best result of cooling energy consumption was observed in Tehran. For this
climate, the average energy consumption dropped to 34% for the warm months of the year and even
42% for the warmest month of the year (August).