Flexibility of the grid
The variable nature of renewable energy generation requires a greater flexibility in the management of the electricity system to keep a well-balanced and reliable system 24/7. More than ever, grid operators have to be prepared for fluctuations in electricity injection which are typical for generation from renewable sources.
An important tool for mastering these fluctuations is a forecasting mechanism that enables precise provisions. Elia and 50Hertz developed efficient forecasting tools to evaluate wind and solar power output. Remaining differences between forecasts and actual infeed are balanced using various market mechanisms.