Satellite imagery enables to monitor cloud masses on a large scale, while offering a refined observation of solar plants’ meteorological environment. It is a precious tool for intraday forecasts, up to six hours ahead.
Intraday forecasts rely on solar irradiance mapping methods using satellite images. The clouds’ trajectory is determined by the treatment of several successive images, allowing cloud cover anticipation on a specific location.
Our satellite-based method has obtained the best forecasting results during a benchmark which took place between experts (academic and industrial) organised within the International Energy Agency‘s Task 46.
The use of intraday solar forecasts with our satellite method has many advantages compared to traditional meteorological forecasts as it enables:
- To add data on a large zone, in real time, thus efficiently completing meteorological models thanks to direct observation.
- To follow in details the clouds’ movements which will directly have an influence on the solar irradiance received on the ground.