Abstract
Due to the decrease in fossil fuels and causing environmental pollution, the importance of electrical energy production from renewable energy has increased in recent years. Accordingly, the number of wind and solar power plants established in the world and in our country is gradually increasing. Our country has a very productive position in terms of solar energy. Therefore, many studies are carried out in this area. In this study, 10 solar power plants were designed and analyzed using monocrystalline panels with an installed power of 10 MW and polycrystalline panels with an installed capacity of 9,999 MW in 5 districts of Sivas. The panels used are designed as a fixed inclined system, the panel inclination angle is 35° and the azimuth angle is 0°. In the design of the monocrystalline system, 34.482 panels of 290 Watt and 148 inverters of 72 kW were used. The panels are connected in 21 series and 1.642 in parallel. The total area of the modules is 56.440 m2. In the design of the polycrystalline system, 34.480 panels of 290 Watt and 148 inverters of 72 kW were used. The panels are connected in 20 series and 1.724 in parallel. The total area of the modules is 66.161 m2. Monocrystalline panels of Trina Solar brand and polycrystalline panels of Canadian Solar company were chosen for the system design, and inverters of Kaco New Energy brand were chosen for the inverter. The power plants are designed as connected to the grid. PVsyst program was used for the design and analysis of solar power plants. Establishment of power plants without a bank loan and with a bank loan has been examined. As a result of the analysis made without using bank loans, the shortest repayment period was observed in the power plants established with polycrystalline panels in Divriği and Yıldızeli districts with 4,5 years. The longest payback period was 6,3 years in the power plant established with monocrystalline panels in Zara district. It has been determined that the power plants installed with monocrystalline panels in the central district and Yıldızeli district have the highest performance rate. The lowest performance rate was in the power plant established with polycrystalline panels in Gürün district. The lowest unit cost is 0,04443 $/kWh in the power plant established in Divriği district without a loan with polycrystalline panels, while the highest unit cost is 0,06159 $/kWh in the power plant established in Zara district with a loan with monocrystalline panels. As a result of the studies carried out, the annual electricity generated is the highest in Gürün district and at least in Zara district. As a result of the economic analysis, the highest profit is in Divriği district for monocrystalline panels and in Yıldızeli district for polycrystalline panels. It is thought that the findings obtained from this study will be useful for the solar power plants to be established in Sivas province and its districts.
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