Hamad Bin Khalifa University, a Qatar-based research institution, has completed a three-year study evaluating PERC, TOPCon, and SHJ modules in desert conditions. The university has conducted indoor and outdoor tests to assess degradation rates, energy yield, and performance ratios of commercial PV technologies. SHJ modules have shown the highest degradation, with Pmax losses reaching 8.73%, along with early encapsulant delamination and edge-seal failure. One TOPCon module has exhibited early signs of material degradation, while another has demonstrated the lowest long-term degradation. PERC modules were found to degrade rapidly in the first year, followed by slower decline. Ultraviolet fluorescence imaging has confirmed material failures in SHJ and some TOPCon modules. According to Hamad Bin Khalifa University, one PERC module outperformed all others, likely due to better materials or manufacturing quality. SHJ and TOPCon modules maintained higher performance ratios than PERC despite observed degradation.