Solar radiation & cloud cover forecasting

Reuniwatt offers cutting-edge solutions for high-resolution observation of the cloud cover and the solar irradiation, and short-term forecasting services. Acknowledged by industrials and researchers, they have been successfully deployed across all continents.

Satellite services

Geostationary satellite images are processed using our proprietary method SunSat™ to retrieve cloud cover and solar irradiance at the ground level at a kilometric resolution. The data is available worldwide over the past, the present, and even the future!

All-sky imagers services

Our specifically developed sky imagers, including Sky InSight™ for 24/7 all-sky observation, enable to monitor the cloud cover with an unprecedented accuracy, and can be used to precisely forecast the solar plants’ production within the next few minutes with InstaCast™ method.


Solar Asset Management Europe
30-31/10/2019 – Frankfurt, Germany

Intersolar Europe
17-19/06/2020 – Munich, Germany

Meteo Tech World Expo
22-24/09/2020 – Paris, France

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Who we are

A leader in cloud observation and forecasting