World energy needs increases every day and it becomes more difficult to meet the energy demand of the growing population without harming the environment. Therefore, renewable energy is the main area of study for concerned researchers and scientists. Electricity production by using solar energy is one of the best alternatives to fossil fuels that lose its importance, due to rising costs and damage to the environment. The number of studies to advance the efficiency of solar systems increases day by day. Especially in electricity supply, usage of high efficiency solar energy systems can meet the expectations. At this stage, solar trackers that provide us efficient utilization of solar energy, gains importance. In this paper, working principles, usage advantages and economical contributions of solar trackers are discussed. Fixed systems, one axis systems and two axis systems are compared in terms of efficiencies and economic advantages. During this study, Photovoltaic Geographical Information System (PVGIS) is used for comparison between systems. It is obtained that solar power generation systems with solar trackers are more feasible than fixed systems.