The electricity sector have many quandary regarding, the supply of electricity, so renewable energy promotion policies have increase the solar energy consumption. The consequential of photovoltaic cell connected to the grids. These papers propose the single stage inverter with maximum power point tracking (MPPT) and one cycle controlled (OCC) for grid connected PV system. One cycle controlled scheme is predicated on the output current adjustment .Schemes predicated on one cycle control (OCC) which do not require the accommodation of a phase locked loop for interfacing the inverter to the grid are increasingly being employed for such applications. It requires less no. of sensors (two) as compared to that required (four) in the earlier reported scheme for the implementation of the core controller comprising of OCC and MPPT blocks. The maximum power extracted from the PV array we are Peterman and observation method.