In MATLAB, a 6.5 MW grid-connected photovoltaic (PV) system can be modeled and analyzed to understand its performance, efficiency, and impact on the grid. The model typically includes components such as PV arrays, inverters, transformers, grid connections, and control systems. MATLAB provides tools for simulating the behavior of the PV system under various operating conditions, such as changing solar irradiance and temperature levels. Engineers can use MATLAB to optimize the design parameters of the PV system, assess its energy production, analyze its integration with the grid, and evaluate its overall performance. By utilizing MATLAB for modeling and simulation, engineers can gain insights into the behavior of large-scale grid-connected PV systems and make informed decisions regarding their design, operation, and integration into the electrical grid.