The cloud forecasting system uses an algorithm to predict overall solar irradiation that is above the PV cells. The algorithm uses overhead cloud cover, background radiation, weather patterns, radiometric measurements from ground stations, the size and location of the sun in the sky, wind patterns, cloud sizes, and cloud density to predict the solar output and ensure the maximum utilization of the PV system before the gen-set starts.
“The cloud forecasting system is significantly more accurate and considerably faster in short term predictions than satellite or weather forecast data, and is therefore the most suitable prediction system for hybrid Diesel/PV power generation,“ says Product Manager Petra Píclová. The system allows for the maximum input from the PV system, whilst also reducing the use of the diesel gen-set – resulting in a reduction of wear on the engine, and saving in diesel consumption.