Overheating of photovoltaic modules (PVMs) is a key problem leading to a decrease in their efficiency and service life, especially in regions with high levels of solar radiation. The existing models are not detailed enough to accurately predict the thermal conditions of thin-film micromorphic modules under real-world operating conditions. The paper develops a three-dimensional finite element model of the Pramac 125 micromorphic module in the Ansys software package, which takes into account the geometric, optical and thermodynamic characteristics of all layers. To verify the model, a field experiment was conducted in the Astrakhan region with the registration of the module temperature and meteorological parameters. The validation confirmed the high accuracy of the model: the coefficient of determination R² between the calculated and experimental data was 0.9991. The model makes it possible to estimate thermal conditions and associated energy losses, which justifies the need to use cooling systems in the southern regions of Russia.

Keywords: photovoltaic module, micromorphic technology, solar radiation, temperature regime, output power, mathematical modeling, finite element method, thermal regimes, model validation, numerical experiment