Reuniwatt, especialista en predicción de cobertura nubosa y pronóstico de irradiancia solar, participa en el proyecto SOLiS. Aprovechando su experiencia en predicción de nubosidad, la empresa contribuye al avance de las comunicaciones ópticas por satélite — una tecnología clave para lograr una transferencia de datos ultrarrápida y segura entre la Tierra y el espacio. Nuestro trabajo fue presentado en un artículo reciente de Bernard Grollier en Les Echos, publicado el 17 de julio de 2025. Aquí compartimos algunos aspectos destacados y ofrecemos una visión general del trabajo de Reuniwatt en comunicaciones satelitales. Puede leer el artículo completo en Les Echos online
La experiencia de Reuniwatt impulsa las comunicaciones satelitales seguras
The European Commission’s VERTIGO project, and CNES’s CO-OP, DYSCO, and now SOLiS projects have benn focusing on research and development of free-space communications, seeking to demonstrate very-high-data-rate space optical links transmitting through the atmosphere. Reuniwatt’s unique cloud cover expertise has made the company a trusted partner in next-generation satellite communication projects. “Satellite communication, with data transmission speeds reaching up to 1 terabit per second, represents the market of the future,” says Nicolas Schmutz, Founder and CEO of Reuniwatt. Laser beams used to transfer data between space and the ground are significantly disrupted by dense cloud layers. Having accurate, expert knowledge of cloud formations allows operators to schedule laser transmissions at the optimal moment.
Since 2013, Reuniwatt has collaborated with the Saint-Exupéry Research Institute and participated in Airbus Defence and Space’s CO-OP project, which tested ultra-high-speed optical links between Earth and geostationary satellites. With SOLiS led by Thales Alenia Space, Reuniwatt is entering a new phase: helping develop an optical terminal that will enable real-time, secure communication between ground stations in Nice and Cyprus.
SOLiS: Building the future of high-speed space data networks
The SOLiS project — for Service Optique de Liaisons Spatiales Sécurisées (secure optical space link service) —aims to demonstrate the technical and economic viability of an optical communications service relying on geostationary satellites. It will evolutionize data transfer by interconnecting multiple ground stations through satellites, ensuring stable, high-speed communication even when traditional fiber networks fail. Reuniwatt’s role is critical: by predicting cloud conditions above each station, its technology will help optimize laser routing and maintain uninterrupted connectivity. The Greek satellite carrying the SOLiS optical terminal is scheduled for launch in 2029, marking a major milestone in secure optical space links.
