This paper describes step-by step modeling and simulation of solar photovoltaic (PV) single diode based equivalent model in MATLAB/Simulink. A PV module is built with number of solar cell connected in series-parallel combination. 9A and open circuit voltage of 0. 3 kW PV generator was designed using this structure. Model a doubly-fed induction generator (DFIG)-based, three-phase, grid-connected wind power system. Initially, the I-V and P-V characteristics are mathematically derived. In this context, photovoltaic (PV) energy is a source of attractive energy; it is inexhaustible, non-polluting, and renewable. Though due to its low efficacy and high cost, energy con-tribution is less than other energy.