IntegratingWeather Foundation Model and Satellite to Enable Fine-Grained Solar Irradiance Forecasting

ArXi:2603.14845v1 Announce Type: cross Accurate day-ahead solar irradiance forecasting is essential for integrating solar energy into the power grid. However, it remains challenging due to the pronounced diurnal cycle and inherently complex cloud dynamics. Current methods either lack fine-scale resolution (e.g., numerical weather prediction, weather foundation models) or degrade at longer lead times (e.g., satellite extrapolation