Clouds play a crucial role in Earth’s radiative balance and impact industrial applications such as solar energy production, airport operations or ground-to-space optical communication. Meet us in Rennes next month to discuss all things cloud research during the ACTRIS Science Conference in Rennes, France from May 13-16, 2024.

All-sky imagers for cloud cover measurement

Will you be attending the ACTRIS Science Conference 2024? Get in touch with us to meet in Rennes where ACTRIS will bring together members of different atmospheric science communities! The ACTRIS community currently encompasses more than 100 research performing organizations from 22 countries aiming to facilitate high-quality Earth system research. Reuniwatt is a French SME well known for their thermal infrared all-sky imager Sky InSight™. Sky InSight™ allows for real-time cloud identification, as well as forecasts for up to 30 minutes ahead using our InstaCast™ solution. This is an important feature for solar power plant operators. Atmospheric scientists will benefit from cloud information 24/7: using infrared technology allows for night and day operation without sensibility change, as well as information regarding cloud cover, cloud fraction, cloud optical depth and more.

Radiometric contrast is useful for cloud property retrieval, such as cloud height, cloud convective evolution, and cloud attenuation. At the ACTRIS Science Conference, Reuniwatt will present their latest poster comparing various cloud cover measurement techniques based on infrared all-sky imager, pyrgeometer and ceilometer measurements. All-sky imagers are sensitive to the full whole sky dome, but may miss some high-altitude thin clouds. How do they compare to alternative techniques? Meet our team members in Rennes to get more information!

ACTRIS Science Conference 2024 Programme
Coming to Rennes? Contact us!

About Reuniwatt (

Reuniwatt is a major player of the solar radiation and cloud cover assessment and solar and wind power forecasting. Based on solid Research and Development works, the company offers reliable products and services intended for professionals of various fields, making the best out of two key facets of the meteorology: atmospheric physics and data sciences. A particular focus has been placed on solar energy forecasting, while developing cutting edge solutions to improve the short-term prediction of the solar resource.
The company has won many grants, including H2020’s SME Phase 1 programme, which makes Reuniwatt a European Champion with regard to innovation. Reuniwatt has also been selected among the national fast-growing companies to join the prestigious French Tech 120 programme in 2020 and 2021, and the French Space Tour 2021