{"id":8957,"date":"2022-07-27T17:53:56","date_gmt":"2022-07-27T15:53:56","guid":{"rendered":"https:\/\/reuniwatt.com\/en\/?page_id=8957"},"modified":"2025-11-24T16:25:48","modified_gmt":"2025-11-24T15:25:48","slug":"intraday-solar-and-wind-forecasts","status":"publish","type":"page","link":"https:\/\/reuniwatt.com\/en\/products-and-services\/intraday-solar-and-wind-forecasts\/","title":{"rendered":"Intraday solar and wind forecasts with HourCast™"},"content":{"rendered":"

Reuniwatt’s intraday solar and wind power forecasts<\/strong> 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.
\nOur solar forecasting<\/strong> 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<\/strong> combine live production data, NWP model forecasts, and machine learning techniques for optimized results.<\/p>\n<\/div>

\"HourCast<\/span><\/div>
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Enhanced precision for any type of climate<\/h2><\/div><\/div>

Enhanced precision for any type of climate<\/h3>\n

Reuniwatt has developed several methods which are efficient for all climate types: continental, insular, coastal, mountainous areas…<\/p>\n

We rely on high quality data: satellite observation performance is guaranteed by satellite operation agencies, while NWP models are being constantly improved by the scientific community.<\/p>\n<\/div><\/div><\/div><\/div><\/div>

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Worldwide coverage<\/h2><\/div><\/div>

Worldwide coverage<\/h3>\n

Reuniwatt receives the live images of five geostationary satellites, enabling our worldwide solar forecasting service. For wind forecasts, we combine global and regional weather models with AI techniques to achieve the best forecasts for your site or portfolio.<\/p>\n<\/div><\/div><\/div><\/div><\/div>

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Swift deployment and maintenance-free<\/h2><\/div><\/div>

Swift deployment and maintenance free<\/h3>\n

Reuniwatt’s intraday forecasting methods do not require hardware installation. The deployment is quick, easy and maintenance free.<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>

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Solar Power Forecasting<\/h4><\/a><\/div>
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Reuniwatt’s proprietary method for intraday solar forecasts (from 10 to 15 minutes ahead up to 6 hours ahead) is based on the most efficient methods of converting satellite imagery into solar radiation maps.<\/span>
\nThe use of intraday solar forecasts using the satellite-to-irradiance method has many advantages compared to traditional meteorological forecasts. It enables the addition of data on a large zone, in real-time, and therefore efficiently completes meteorological models using direct observation.<\/span>
\nContact us for a free consultation:<\/span><\/p>\n<\/div>

<\/div>Contact our solar forecasting experts<\/span><\/a>
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Wind Power Forecasting<\/h4><\/a><\/div>
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Accurate weather prediction lies at the base of precise wind power forecasts. Based on solid R&D, Reuniwatt has developed an enhanced wind forecasting method combining numerous weather models with deep learning techniques. Our results prove us right: Our intelligent intraday wind power forecasts will allow you to handle the variability of this renewable energy resource and obtain high quality forecasts, typically requested by utilities and grid operators.<\/span>
\nFind out more about the quality of our wind power forecasts and request a free trial:<\/span><\/p>\n<\/div>

<\/div>Contact our wind forecasting experts<\/span><\/a>
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<\/i>Methods<\/strong><\/h2>\n<\/div>

Satellite imagery<\/strong> enables to monitor cloud masses on a large scale, while offering a refined observation of power plants' meteorological environment. It is a precious tool for intraday solar forecasts<\/strong>, up to six hours ahead. The clouds' trajectory<\/strong> is determined by the treatment of several successive images, allowing cloud cover anticipation at a specific location.<\/p>\n

Our intraday wind power forecasts achieve best-in-class results based on NWP models combined with artificial intelligence techniques. Moreover, we take into account real-time SCADA data to frequently update our hour-scale forecasts.<\/p>\n

The use of satellite and SCADA data for intraday solar and wind power forecasts has many advantages compared to traditional meteorological forecasts as it enables:<\/p>\n