The technology of PV system is improved which reduces the payback period in the economical range and the conventional electrical unit price is increasing day by day. The MNRE is planning to implement the Rooftop solar PV system technology and ministry us approved some vendors for implementing the lowest per unit RTSPV system @3.19Rs per unit. Solar power in India is a fast developing industry. The country's solar installed capacity reached 20 GW in February 2018. The SPV power installation is increaded by 11860.79 MW Knowled of excellence for the researchers, Industraial and academiciabs.