Great progess has been noticed in recent years regarding new technologies, innovation and legislation for production of electricity obtained from the energy of the sun. This progress includes photovoltaic power plants. The use of solar energy as an energy source is becoming more accessible considering the constant development of new technologies, equipment and devices necessary for production of solar photovoltaic energy and increasing competitiveness in the production of photovoltaic modules. Price reductions of the components required for the installation of solar photovoltaic power plants lead to decrease of installation prices, which increase the interest of citizens for installing solar panels to roofs of family houses. All above mentioned enables a household to be independent and exposed to possible rise in electricity prices and is economically profitable. This final paper describes goals and reasons for installing a solar power plant on a family home. Specific example of a small solar power plant installed on a family house in Koprivnica describes the procedure for creating the necessary documentation and obtaining a construction permit, the course of construction of the solar power plant and its commissioning. It contains all most important parts needed for the operation of the solar power plant and their function as well as the presentation of data on the operation of the solar power plant after commissioning and the profitability analysis for the investor.