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.



Our programme for 2020 is disrupted by the COVID-19 health crisis, but our motivation remains intact! See you soon!


15/6/2020-21/08/2020 – Virtual Meeting

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

AGU Fall Meeting
7-11/12/2020 – San Francisco, USA

Our latest news

Keep updated about Reuniwatt’s news


Who we are

A leader in cloud observation and forecasting