Determination of factors affecting efficiency in rooftop solar power plants

As a result of technological developments all over the world, there has been a great increase in energy consumption. Therefore, clean and renewable energy is needed. Currently, the use of fossil fuels and natural gas is high to meet the energy need. In order to reduce the use of these resources, the tendency to use renewable energy resources has increased in the world and in our country. Therefore, solar energy applications have become one of the important applications among renewable energy sources in our country and in the world. In our country, the most efficient region in terms of sunshine duration is the Southeastern Anatolia region and the most inefficient region is the Black Sea region. The construction of land type solar power plants, which are the first applications of solar energy systems in our country, has recently started and investments in these systems are still ongoing. With the increase in the number of land type power plants, the space in transformer capacities has started to decrease. Due to this situation, the demand for the construction of roof type solar power plants, where consumption and production will be made in the same place, has increased. In this thesis, the effects of mistakes made during the installation and projecting stages of rooftop solar power plants on the performance and efficiency will be determined through the PV SOL software and the data to be drawn from the SCADA system. As a result of the work carried out, the losses were 2.20% as a result of incorrect positioning of the shadowing elements during the project at the top solar power plants. As a result of contamination at the plant, PR values increased by 14%. Temperature increases have also affected efficiency between 7% and 9%. Thus, an important resource will emerge in reducing the depreciation periods of investments to be made in rooftop solar power plants.