Abstract
The global transition to renewable energy necessitates efficient maintenance strategies for photovoltaic (PV) systems. This study optimizes maintenance scheduling for the 10 MW Tozeur PV power plant using a novel, integrated approach. Seasonal variations in PV system efficiency and power output are initially modeled using a Seasonal Autoregressive Integrated Moving Average (SARIMA) model. Subsequently, weather-induced anomalies impacting system performance are identified through autoencoder-based anomaly detection. A hybrid forecasting model, combining Autoregressive Integrated Moving Average (ARIMA) and Isolation Forest algorithms, predicts periods of abnormal system behavior. Finally, a Random Forest Classifier integrates weather data and predicted anomalies to create a predictive maintenance schedule. This integrated methodology enhances maintenance reliability and demonstrates the potential of predictive analytics for optimizing the operational efficiency and lifespan of large-scale PV systems.