In this final paper, I talked about photovoltaic technology, but also in the broader sense of the argument through solar panels and the use of solar energy in general. In the second chapter, "Photovoltaic Technology", I described the history and basic properties of photovoltaic cells, and the two most important processes that explain the interaction of sunlight with electrons in the atom, the photovoltaic and photoelectric effects. In the next chapter "Materials used for the production of photovoltaic technology" I listed the materials from which photovoltaic technology is composed, primarily silicon and thin-film materials, their collection, processing and efficiency. In the fourth chapter "Use of photovoltaic technology" I talked about various applications of photovoltaic technology, from use in buildings, vehicles and small electronic devices, but also the shortcomings and unfortunately many contradictions in terms of environmental protection, as the future disposal of solar panels is still inadequately regulated. In the fifth chapter "Photovoltaic power plants in teh Republic of Croatia", I listed some of the most famous solar power plants in Croatia, the way they work, their history, construction costs and how much it will take to achieve a return on investment. In the last chapter "Current - voltage bases of photovoltaic power plants" I wrote about the individual parts of mechanization that are necessary for the creation of solar energy and the related processes of creation and conversion of electricity.