Purpose: The main aim of the paper is formation of photovoltaic modules and analysis of their main electric parameters. Design/methodology/approach: Photovoltaic modules were produced from four polycrystalline silicon solar cells, that were cut and next joined in series. Soft soldering technique and copper-tin strip were used for joining cells. Findings: In order to provide useful power for any application, the individual solar cells must be connected together to give the appropriate current and voltage levels. Taking this fact into account the analysis of photovoltaic module construction was performed. Research limitations/implications: The main goal of the research is to show the practical application of solar cells. Two photovoltaic modules were assembled and their basic electric properties were analysed. It was shown that they may be successively applied as an alternative energy source. Practical implications: Photovoltaic modules are irreplaceable in areas which are far away from power network. Simply photovoltaic module can supply small device without any problem. Originality/value: The produced photovoltaic modules and photovoltaic systems confirm the utility of solar energy in every place where the sun radiation is available. Because of exhaust conventional energy sources like coal or earth gas, new renewable sources of energy (sunlight, wind) are more and more often used. It brings huge ecological benefits.
