The paper presents a study on a photovoltaic thermal hybrid collector using serpentine absorbers. The research focuses on four regions of Morocco: Oujda in the east, Ouarzazate in the south, Tétouan in the north, and Rabat in the west. The aim was to analyze the performance of thermal photovoltaic technology as a function of variations in solar intensity in these regions. The study was specifically examined, and the effect of solar intensity on the photovoltaic cell temperature layer and electrical efficiency was simulated using CFD computational. The simulation model was successfully validated using CFD computational. The PVT system has been schematized as a three-dimensional. The analytical model, based on thermal equations, was solved numerically using the finite volume method. The simulation results highlight the importance of solar radiation as a key parameter in the technical efficiency of the system and the results found are very satisfactory according to the experimental results.