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Energy performance of a 3 kWp solar photovoltaic (PV) system installed on the roof of an urban house in Coimbatore, India was evaluated. Performance indices as electricity output, system yields, performance ratio, system efficiency, and capacity factor were assessed from January 2017 to December 2017. The rooftop PV system supplied 4047 kWh of electricity to the grid during the year 2017 with a monthly average electricity output of 337.25 kWh. Annual average final yield compared with different PV systems in India was found to be 3.7 h.day-1. The analysis showed that the average PV system efficiency was 10.94 per cent. The performance ratio and capacity factor of the PV system were 0.72 and 15.41 %, respectively. The results could be used as a benchmark for the evaluation of photovoltaic systems in regions with similar climate.

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In the present study the evaluation of different instruments was conducted to check the chemical structure change and the contamination of the different treatments and the raw sample of tannery fleshings were checked in it. The thermogravimetric analysis (TGA) was conducted to check the loss of weight on thermal degradation, The Fourier Transform Infrared Spectrometry (FTIR) was carried to check the different functional groups like, -OH, -CH, -NH and C-O present in the samples of tannery fleshings at a wavelength of 400 – 4000 cm-1. The scanning electron microscope (SEM) and Energy Dispersive X-ray (EDAX) analysis carried out to check the morphological alterations in substrate, digestate, enzyme pretreated fleshings and the chemical composition of the different samples.