In order to reduce the production of electricity from conventional sources, investment in the development of technologies from renewable sources is encouraged. Since the Sun is considered an inexhaustible source of energy, harnessing its potential is being initiated. In photovoltaic systems, solar energy is converted into electricity based on the photoelectric effect. According to research, the lifespan of photovoltaic cells is increasing, leading to a reduction in environmental pollution. The process of designing a photovoltaic power plant, using the example of the family house "Bare" and analyzing the economic feasibility, is presented in this paper. It describes the procedure for preparation and obtaining documentation for the construction of a photovoltaic power plant on a family house. Calculations are performed using the Photovoltaic Solar Simulation (PV SOL) program. Additionally, the simulation of possible problems in the design and construction of photovoltaic power plants on family houses is presented.