Application of crystalline silicon solar cells in photovoltaic modules

Purpose: The aim of the paper is to determinate basic electrical properties of solar cells, made of them photovoltaic module and analysis of its main electrical parameters. Design/methodology/approach: In this study, several methods were used: current - voltage characteristic to determinate basic electrical properties of 36 monocrystalline silicon solar cells, soft soldering technique to bond solar cells . Photovoltaic module was produced from 31 solar cells with the largest short-circuit current, which were joined in series. Findings: In order to obtain a device producing an electrical current with a higher current and voltage level, solar cells were connected in a photovoltaic module and then protected from damages derived from external factors. In series connection solar cell with the lowest current determines the current flowing in the PV module. Taking this fact into account the analysis of photovoltaic module construction was performed. Practical implications: Because of low operating cost and simplicity of photovoltaic installation, photovoltaic technology is perfectly suitable for supplying objects which are beyond powers network range as well as connected to it. In many cases, they are less costly option than a direct extension of the power network. Originality/value: Protecting the environment from degradation due to pollution, which has source in conventional power industry, as well as diminishing resources of fossil fuels, tend to increase development of renewable energy production such as photovoltaic technology.