Feature of Solar Radiation Forecast Services Use for Solar Plants

Many countries, including Ukraine, are beginning to regulate the generation of energy produced from renewable energy sources more tightly to mitigate power imbalances. For this reason, electricity energy providers from renewable sources are forced to forecast energy generation and pay penalties if their forecast doesn't match with real energy generation. Renewable energy providers may use weather forecast as well as install energy storage system to minimize the penalties. The main purpose of the study is the review common cloudiness forecast services, uncertainty interval calculation of solar radiation for these services based on comparing with real solar radiation, estimating the opportunity of combining forecast data from several sources to minimize error and analysing the profit from the power plant using forecast services.