Calibration and Performance Analysis of a 50 MWac Large-Scale Solar PV System in the Eastern Region of Peninsular Malaysia Across Two Monsoon Seasons

In an effort to harness sustainable energy solutions, Malaysia has shifted its attention to the development of diverse configurations of Large-Scale Solar Photovoltaic (LSSPV) systems. This shift is driven by the country’s plentiful solar radiation, a renewable and clean energy source. However, the efficiency of these solar systems is influenced by the variable conditions associated with the country’s monsoon seasons, affecting critical components like inverters and transformers, which are vital for grid-connected power delivery. To address these challenges, this paper presents a calibration and performance analysis of a 50 MWAC LSSPV system located in the eastern region of Peninsular Malaysia using MATLAB Simulink. The preprocessed and cleaned data utilized from iSolarCloud are utilized to enhance the accuracy of the simulations, thus ensuring the model closely reflects real-world conditions. The performance of the calibration model based on active power tolerance at the Point of Common Coupling (PCC) is evaluated during both the southern and northern monsoon seasons, in accordance with the standards and guidelines set by the Malaysia Energy Commission and Tenaga Nasional Berhad (TNB). These findings offer valuable insights for maintaining and optimizing existing systems, as well as supporting future LSSPV expansions and improvements in Malaysia and similar tropical regions.