The purpose of this master thesis is to assess the hydropower potential of the Bednja River for the construction of a hydroelectric power plant using turbines that use the potential energy of water and those that use the kinetic energy of the water flow at a location near Lovrentovac, i.e., specifically near the bridge. Based on known data at the observed location and field measurements, it is possible to calculate the output power depending on whether it is potential energy or kinetic energy of the water flow. The Bednja River is one of the rivers on which it is possible to use a plant that could use the power of water to produce electricity for nearby settlements in Varaždin County. In addition to the measured data obtained through field research and the use of appropriate measuring devices, this paper will also contain data related to the neighboring hydrological stations Ključ and Tuhovec. It will be possible to assess the potential of the Bednja River for the construction of small hydroelectric power plants for electricity production outside the analyzed location, i.e., to serve for better analysis. With all the data obtained and the calculated output power, it is possible to compare the results and thus assess the real potential of the Bednja River. Hydropower plants are classified as renewable energy sources and do not harm the environment compared to fossil fuels. Small hydropower plants can significantly contribute to the development of rural areas and thereby improve the quality of life in such regions.