Due to its significance and effect on interior spaces, photovoltaic Trombe walls are regarded as sustainable technologies. This is because they use solar energy to heat the building and give thermic comfort without requiring the use of cooling equipment to reduce power consumption. not to mention supplying the structure with electricity. To investigate how operational conditions and climatic change affect PV/TW, two empirical models—one with DC fans and the other without—were developed. The two models were compared with each other. To demonstrate their impact on system competency, operating conditions for both dusty and non-dusty days have been examined. When DC fans are used on a dust-free day, the system’s electrical and thermal competence is 10.2 percent and 17.6 percent, respectively. The system’s electrical and thermal competence levels were 8.4 percent and 40.1 percent, respectively, on a day when there was no dust and when the DC fans were not operating. The system that had fans had a higher thermic and electrical efficiency than the other two systems, with values of 11.9 percent and 6.6 percent, respectively, on the dusty days. The system’s thermic and electrical efficiency were 34.1 percent and 3.5 percent, respectively, without fans. This suggests that dusty days have an impact on the experimental system’s electrical and thermic efficiency.