The thermal and optical characterization of semi-transparent photovoltaics samples for buildings energy evaluations

Using Semi-transparent PV (STPV) as glazing in buildings might improve the building's energy profile. However, the characterization method has to be identified. This work aims to establish the experimental methodology utilized in characterizing various glazing SPTV samples and draw its potential impact on buildings. The results indicate that STPV-based CdTe solar cells tend to reduce the amount of natural light that can enter the indoor environment, therefore, increasing the lighting demands and reducing the passive heating element, which would increase the heating demand. Furthermore, it minimizes the heat gain caused by solar radiation passing through the glazing. This suggests that CdTe STPV glazing samples can serve as effective shading devices, ultimately reducing the cooling requirements of buildings. Finally, the CdTe STPV glazing systems exhibit better insulation properties compared to conventional single and double-glazing samples, regardless of their structure.