The extreme weather conditions have made it challenging for solar investors and asset owners to differentiate between weather-driven changes and actual underperformance of solar assets. Regions like Western Europe saw irradiance levels 20% above average, while areas such as Scandinavia and South America experienced deficits of up to 25%. These variations could lead to financial risks for solar projects, especially in regions where conditions deviate significantly from long-term expectations. The ongoing El Niño could exacerbate these challenges by introducing further unpredictability in solar resource availability.