The utilization of solar power plants is widespread around the world. Because solar power plants rely on irradiance, one of their challenges is the volatility of the electricity generated by the solar panels. The Maximum Power Point Tracking (MPPT) is used in a number of ways to address this issue. Although many approaches have been developed, the Perturb & Observe (P&O) method is popular for MPPT because it is inexpensive and simple to apply. Solar PV is operated at the Maximum Power Point thanks to this P&O MPPT control (MPP). the MPPT P&O control strategy optimizes the output voltage at the load, leading to overvoltage. The main focus of this study is the modification of the MPPT Perturb and Observe (P&O) algorithm using SEPIC converter. Two solar PV operating modes, MPPT mode and CPG mode, can be configured using this method. When solar PV output power is less than the reference power, the MPPT mode maximizes solar PV output power, and when solar PV output power is more than or equal to the reference power, the CPG mode limits the output power of the solar panel.The MPPT P&O-CPG control algorithm system receives voltage and current information from the SEPIC converter.In this proposal, the surplus energy produced is stored in batteries and transmitted to the grid system using a universal bridge.