## 4 The Impact of EC Switchable Glazing  
The data delineated in Figure 10 showcase the annual distribution of WPI across diverse mosque daylighting typologies, namely, multi-lateral, clerestory, skylight, and a concrete case study both with and without the integration of electrochromic (EC) switchable glazing systems, as juxtaposed against a reference clear glazing system. This exposition highlights the efficacy of EC glazing systems, particularly in dynamically modulating its states in response to the varying intensity and angular orientation of sunlight over time. A noteworthy diminution in WPI levels across all observation points is evidenced, with the annual WPI oscillating between a commendable illuminance range of 450 lux to 960 lux. This range not only elucidates the daylight distribution potential of EC glazing but also manifests a conducive daylighting condition within the analyzed spaces. Nonetheless, a critical examination reveals that the uniformity index, a pivotal indicator of illuminance consistency, is suboptimal across all scenarios, falling below the recommended threshold. This shortfall underscores a potential area of enhancement in achieving a more uniform daylight distribution. On the contrary, the utilization of clear glazing systems across all examined scenarios conspicuously surpasses the recommended illuminance values, underscoring a likely over-illumination. The disparity in illuminance levels is particularly pronounced in the clerestory configuration, which registers the lowest WPI at 2224 lux, and the real case study scenario, which exhibits the highest WPI at 7631 lux. Figure 10: Yearly average WPI distribution for different mosque daylighting configurations: (**a**) multi-lateral, (**b**) clectersory, (**c**) skylight, and (**d**) hybrid, each shown without EC switchable glazing (1) and with EC switchable glazing (2). Figure 11 elucid the yearly distribution of control states in electrochromic (EC) switchable glazing systems across various daylighting scenarios within mosque architectural configurations. Among the scenarios under consideration, the clerestory configuration maintains a consistent transparent state throughout the year. On the other hand, a substantial inclination towards a fully tinted state, amounting to 64%, is observed in the top light scenario, specifically within the skylight typology from 10:30 a.m. to 13:45 p.m. A notable dynamism in glazing state alteration is manifested in the multi-lateral lighting scenario. Here, a nearly balanced distribution is seen with 47% transparency and 41% full tint on the south-north axis, while an overwhelming 69% transparency is maintained in the eastern orientations, attributed to the integrated shading components associated with the mosque architecture. This case study unravels a complex and irregular dynamism in glazing state transitions, especially when multiple daylighting strategies are amalgamated. The outcomes closely mirror the distribution percentages observed in previously discussed scenarios, thus providing a comprehensive understanding of the interactive performance of smart glazing systems in varying daylighting and architectural contexts. The insights derived from the analysis present a fertile ground for further exploratory studies on optimizing smart glazing systems to enhance daylighting efficacy in religious edifices. Figure 12 elucidates the complex interplay among various daylighting strategies upon the integration of electrochromic (EC) switchable glazing systems within the men's prayer hall. The evaluation, conducted through the lens of LEED v4.1 and UDI\({}_{300-3000\text{lux}}\) metrics, sheds light on the performance and efficacy of the daylighting strategies under scrutiny. The findings indicate that the sDA\({}_{300/50\%}\) metric consistently remains above the 50% threshold across all configurations both before and after the incorporation of EC glazing in varying states, with the exception of the skylight typology (S3).