Day - by - day the rate of energy demand is increasing,nonrenewable sources also decrease day by day that why it is necessary to increase the renewable sources for fulfilling the demand of energy. After some year some state that by 2050 the energy demand will triple. The majority of the energy requirements is satisfied by fossil fuels. By the using photovoltaic systems,it could help in supplying the energy demands. In this paper,we have a deal with a problem that results with the modeling of the photovoltaic device. For determination of unknown parameters various parameters are used in modeling of various methods have been introduced in the system. Primarily two of the proposed methods are being studied and then compared. https://www.ijiert.org/paper-details?paper_id=140922