The preliminary operational and functional research on a set of photovoltaic panels with power of 12.88 kW operating since June 2012 was conducted. The economic and energetic analysis of the research stand and its practical suitability for a small family farm in order to use the generated electric power for the farm’s current demands. The research results have shown that the amount of electric power generated by photovoltaic panels would be enough to cooperate with other renewable energy sources (e.g. power supply of heat pumps) collecting and processing heat from livestock buildings or from ground heat exchangers to make warm tap water and to heat up buildings. In a period from June 2012 to June 2013 there was generated electric power of 10480 kWh with an average power of 813.7 kWp/year (kilowatt peak per year) of one module of the panel. The panel was inclined at an angle of 20° to the Earth’s axis and at an angle of 210° to the north (as per the compass rose: S-S-W direction).