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Optimal Configuration and Evaluation Analysis of an Existing Solar Photovoltaic Power Plant

This paper presents evaluation analysis and optimal configuration for installed 200 kWp solar photovoltaic power plant at Baru Sahib (Latitude: 30.75° N, Longitude: 77.30° E) Himachal Pradesh, India, through measured data in plant using real time data logging. The plant has worked as off-grid since 2011 for first six years. As system shifted to on-grid in July 2017, several parameters such as annual energy yield, performance ratio, system efficiency and others were influenced which are analyzed through this study. Monthly average annual generations with other performance parameters for six years from off-grid system are compared with one year on-grid respective parameters. The performance of the whole system with its components is studied to get better technical and feasible system. Annual generation for on-grid and off-grid systems comes as 199.78 MWh/yr and 143.88 MWh/yr respectively. Annual average performance ratio, capacity factor and system efficiency for off-grid are found to be as 47.17%, 8.21 % and 5.97 %, while for on-grid are found to be as 65.23%, 11.4 % and 8.25 % respectively. Thereby higher values of energy yield and performance parameters provides optimal and more viable configuration.