This study adopted an experimental approach to analyse the core parameters of different photovoltaic modules by applying Krebs’ correction to standard test conditions. Current-voltage and power-voltage curves for each PV module were obtained at different illumination levels, in addition to performance parameters ascertained from the fill factor and efficiency values of the PV modules. Ohmic losses present challenges in PV systems and could be addressed by recombination electrons made available by utilising the geometry and thickness to absorb the most wavelengths of incoming light. The parameters were subsequently compared with the manufacturer’s specifications, and the modules performance were discussed.