Researchers have developed Baguan-solar, a novel framework that integrates a weather foundation model with satellite imagery for precise solar irradiance forecasting. This two-stage multimodal approach improves upon existing methods by combining the large-scale predictions of the Baguan model with high-resolution satellite data to capture fine-scale cloud dynamics. Tested over East Asia, Baguan-solar demonstrated a 16.08% reduction in RMSE compared to other leading forecasting systems. An operational version of this system has been supporting solar power forecasting in China since July 2025. AI
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IMPACT Enhances solar energy grid integration by providing more accurate, kilometer-scale irradiance forecasts.
RANK_REASON This is a research paper detailing a new forecasting model.