![]() ![]() This report gives the experience of NIAS with its 100kWp solar rooftop. Rooftop solar power can meet a substantial portion of institutional electricity demand on working days also it can be exported to the grid during weekends and holidays, when the institutes’ activities are minimal. Institutions like schools, colleges, universities, and offices are suited specifically for this purpose as these have their major electricity requirement during the day when the sun is available (8am to 6pm). One of the solutions to address power deficits is to utilize vacant rooftops and install solar panels. Chronic power deficits resultin load shedding leading to not only inconveniences, but also economic losses. The average and peak deficit has been higher than the national average for the last five years. Karnataka is the most power deficit state in the Southern regional grid. Further, follow-up research studies are also identified. The need for optimizing solar panel inclination is emphasized for maximizing power generation. The results presented provide insight to the long-term performance of the solar power plant under actual operating conditions in India. The performance of the system is compared with PV systems installed worldwide and found comparable. ![]() The study shows that energy generated is maximum during March, September, and October and minimum in January. The total estimated system losses due to irradiance, temperature, module quality, array mismatch, ohmic wiring and inverter, are found to be 31.7%. The estimated energy yield is in close agreement with measured results with an uncertainty of 1.4%. The average annual predicted energy yield is found to be 823 kWh/kWp using PVSYST. The average annual measured energy yield of the plant is found to be 812.76 kWh/kWp. The annual average performance ratio, capacity factor and system efficiency are found to be 74%, 9.27% and 8.3% respectively. ![]() The final yield, reference yield and performance ratio, are found to vary from 1.45 to 2.84 kWh/kWp-day, 2.29 to 3.53 kWh/kWp-day and 55e83% respectively. The performance analysis of a 190 kWp solar photovoltaic power plant installed at Khatkar-Kalan, India, is carried out. ![]()
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