Eye2Sky - Networked cloud cameras forecast light and shadow
by DLR Institute of Networked Energy Systems
Variations in the intensity of the sunlight over solar power plants is having an increasing impact on the energy supply system. In the future, grid operators will have to react quickly to the passage of individual cloud formations, because the shadows they cast immediately affect the energy yield of the solar panels across entire regions. Precise cloud forecasting will be key to ensuring the stability of future power grids fed by renewable energy sources. In order to gain a better insight into what is happening in the sky, the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) is currently building the 'Eye2Sky' cloud measurement network in northwestern Germany. The project aims to enable short-term forecasting of solar power output with unprecedented resolution. If everything goes according to plan, from 2020 it will be possible to predict this output with street-by-street and minute-by-minute resolution across large parts of the Weser-Ems region – making Eye2Sky a pioneering project for improving power grid stability in Europe.
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