Energy demand is increasing day by day while the traditional primary energy sources, i.e., fossil fuels, are rapidly decreasing. Hence, maintaining a continuous energy flow is becoming a significant problem for most of the world. Therefore, the world is desperately seeking alternative renewable energy sources like solar, ocean, and wind energy. Among them, rooftop photovoltaic (PV) solar system is one of the promising and practical solutions to this problem, especially for densely populated countries like Bangladesh. A university campus can be an ideal place to assess the applicability of rooftop PV solar systems in any geographic location. Therefore, in this study, the efficiency of PV modules was evaluated by installing and monitoring multiple solar module prototypes in the Hajee Mohammad Danesh Science & Technology University (HSTU) campus. Moreover, various efficiency enhancement techniques were systematically analyzed, such as cooling, cleaning, and tracking of the PV modules. The experimental results showed that tracking systems, cooling, and cleaning can improve the efficiency of the PV modules by ~9.43%, 7.73%, and 8%, respectively. This research can serve as a roadmap for the sustainable development of solar power plants in the northern region of Bangladesh.