We are primarily tasked with providing power transmission services, system services and facilitating the energy market. Our core tasks follow from our appointment as grid operator under the Dutch 'Elektriciteitswet' (E-wet) and the German 'Energiewirtschaftsgesetz' (EnWG).
Day ahead generation forecast & actuals wind
The actual wind energy feed-in (sum of onshore and offshore) describes the total physical wind energy feed-in in the TenneT control area per unit of time. The data are based on an extrapolation of the online measured feed-in values of reference wind farms. The forecasted wind energy feed-in is a combination of several wind energy feed-in forecasts as of 8:00 a.m. for the following day (previous day's forecast).
The generation of wind energy highly depends on current weather conditions. In the course of the energy transition, the generation levels from volatile wind energy are constantly increasing. Accordingly, forecasting actual generation due to the high installed capacity is a particularly important and challenging task.
We are continuously working to reduce the discrepancies between forecasted and actual output. This ensures a reliable power supply and reduces costs, for example for the use of control energy.
The actual wind energy feed-in is shown as a quarter of an hour average for the respective time. For example, 11:15 a.m. references the period from 11:00 a.m. to 11:15 a.m. The diagram shows values from the operational measurement; thus, data updates are possible.