A 30 MW grid-connected photovoltaic (PV) system modeled in MATLAB is a computational framework used to simulate the behavior and performance of a large-scale PV installation connected to the electrical grid. This model represents a significant power generation capacity that can supply electricity to the grid. By using MATLAB, engineers and researchers can analyze various aspects of the PV system, including solar irradiance levels, temperature effects, system efficiency, power output, voltage stability, and grid integration issues. The simulation allows for the assessment of the system's overall performance under different operating conditions and the evaluation of strategies to optimize energy production and grid interaction. Additionally, researchers can explore advanced control algorithms, MPPT techniques, and grid integration methodologies to enhance the reliability and efficiency of large-scale grid-connected PV systems, contributing to sustainable energy production and grid stability.