Reuniwatt software

DayCast™ is Reuniwatt’s product to obtain day-ahead solar forecasts. Our algorithms are based on meteorological models optimised for solar, that are combined with artificial intelligence and statistical models. They forecast solar irradiance and PV production up to 10 days in advance.

Reuniwatt’s intraday solar and wind power forecasts are obtained using different technologies: real-time geostationary satellite images, numerical weather prediction (NWP) models, and artificial intelligence. HourCast™ is available worldwide, and up to 6 hours ahead. Our solar forecasting method is based on cloud motion vectors derived from satellite images. This method has been recognised by solar experts as the most efficient on the market. Our intraday wind power forecasts combine live production data, NWP model forecasts, and machine learning techniques for optimized results.

Reliable irradiance data is key to a weather-wise performance evaluation of the plants. SunSat™ Digital Twin is based on SunSat™ proprietary method which uses geostationary satellites to estimate the solar irradiance.