The aim of the paper was to show how cooling of silicone photovoltaic cells influences the amount of electrical energy they produce. The research was conducted both in the laboratory and under real outdoor conditions. Current-voltage characteristics for two different thermal states of PV cells were outlined. Obtained power values for a PV cell working under the influence of refrigerant and without such an influence were compared. As a result of mechanical cooling of PV cells, an increase in photovoltaic cell efficiency was proved.
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