As we enter 2026, we would like to thank our clients, partners, and colleagues for the trust you place in Reuniwatt. This trust is the foundation of our continued growth—technically, internationally, and collectively. Across renewable energy, free-space optical communications, aviation, and atmospheric sciences, we work every day to deliver precise, reliable, and innovative solutions that help our partners make better decisions in an increasingly
Sunology, the French leader in residential solar stations without installation or assembly, has renewed its partnership with Reuniwatt, an international reference in solar irradiance estimation and forecasting. This collaboration has enabled the development of a highly scalable solar forecasting innovation aimed at optimizing residential solar energy storage management. Innovative start-up in residential solar solutions Sunology is a Nantes-based start-up developing a new generation of
[Webinar Series] Harnessing the Power of Destination Earth – Part 2: Digital Twins Driving the Future of Energy Risk Management EO4ER has been selected by ESA to develop a Digital Twin Component prototype for the energy sector. EO4ER’s consortium is composed of IT and cutting-edge software development specialist OHB Digital Services, THU’s application-orientated Smart Grids Research Group and cloud estimation and solar forecasting expert Reuniwatt.
Reuniwatt continues to advance renewable energy forecasting around the world: At All Energy Australia 2025, our team will showcase how wind and solar forecasting contributes to grid stability and energy market optimization across Australia’s rapidly evolving renewables landscape. Advanced Forecasting for a Renewable Australia At All Energy Melbourne 2025, Reuniwatt will present its latest innovations in short-term and intraday solar and wind forecasting. As
[Webinar Series] Harnessing the power of Destination Earth: Anticipating solar energy risks using Europe’s massive Digital Twin EO4ER has been selected by ESA to develop a Digital Twin Component prototype for the energy sector. EO4ER’s consortium is composed of IT and cutting-edge software development specialist OHB Digital Services, THU’s application-orientated Smart Grids Research Group and cloud estimation and solar forecasting expert Reuniwatt. We are
Aviation's environmental footprint extends beyond just CO2. Non-CO2 effects like nitrogen oxide emissions and contrails also significantly influence climate change. Although contrails may seem minor, their cumulative warming effect could notably contribute to global warming by 2050. Understanding and mitigating this impact is essential for a more sustainable aviation future. Collaborative Efforts to Reduce Contrail Impact Several airlines are testing flight rerouting strategies to
Reuniwatt is pleased to announce its participation in the European Meteorological Society (EMS) Annual Meeting 2025, taking place from 7–12 September 2025 in Ljubljana, Slovenia. The EMS Annual Meeting brings together experts from around the world to exchange insights on meteorology, climatology, and atmospheric sciences. Reuniwatt will be presenting a poster contribution focusing on the evaluation of ensemble prediction systems for solar irradiance forecasting
Reuniwatt, specialist in cloud-cover prediction and solar irradiance forecasting, is taking part in the SOLiS project. Leveraging its expertise in cloud prediction, the company contributes to advancing satellite-based optical communications — a key technology for achieving ultra-fast, secure data transfer between Earth and space. Our work was presented in a recent article by Bernard Grollier in Les Echos published on July 17, 2025. Here
Cloud observation and cloud cover forecasting solutions enable space industry stakeholders to orchestrate their optical laser communications and anticipate the use of observatories—regardless of the weather. Advanced Cloud Cover Forecasts for Spacetech Clouds don’t stop lasercomm—if you know where they’ll be. At Les Assises du NewSpace 2025, Reuniwatt will be present in the Spacetech Village to showcase its cutting-edge solutions for cloud cover observation
Meet our team at The smarter E 2025 in Munich, Germany, at booth A4.140 As a leader in cloud cover observation and forecasting, Reuniwatt offers a clear overview of the amount of solar and wind power production available in the next minutes, hours, days, and weeks. Forecasting time horizons can always be adapted to your individual needs. Intra-hour forecasts help avoid curtailment and increase
