A grid-connected PV system with Perturb and Observe (PO) Maximum Power Point Tracking (MPPT) is a solar power setup that is linked to the electrical grid and utilizes the PO MPPT algorithm to optimize energy harvesting from photovoltaic panels. The PO MPPT algorithm continuously adjusts the operating point of the PV system to track the maximum power point (MPP) under varying solar irradiance and temperature conditions. This enables the PV system to efficiently convert sunlight into electrical power, maximizing energy production. The grid connection allows excess energy generated by the PV system to be fed back into the grid, reducing dependency on conventional energy sources and promoting renewable energy integration.