In order to ensure a better standard of living, and increase the quality of life, it is necessary to change the way of life as we know today. It is known that the energy is required for the normal functioning of all life on earth and one way to improve the quality of life is through the use of renewable energy sources that can be used indefinitely in suitable weather conditions. Solar energy, as one of the renewable energy sources, represents a long-term solution to the ever-growing demand for energy. The geographical position, physical availability for the installation of solar systems and the annual average of sunny hours are some of the positive sides for the use of solar energy in the Republic of Croatia. Thesis topic is to compare a solar panel that automatically rotates according to the position of the Sun with fixed solar panel. The data obtained by the measurement will be stored in a database and the user will be able to use the "ThingSpeak" application to access the same to be able check the voltage obtained from the solar panels. The aim of this paper is, to conclude according to the obtained data, which construction is more economical, more cost-effective, more efficient and provides higher voltage.