Data in second resolution

automatic Frequency Restoration Reserve setpoint

The automatic Frequency Restoration Reserve is activated by the transmission system operators by means of an electronic signal. The aFRR is called up in the form of a setpoint that is updated every second.

This data point represents the second-by-second aFRR setpoint.

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Secondary frequency

Alternating current is characterized by the fact that the transported current changes its direction (polarity) in regular repetitions. The physical quantity used to measure the number of directional changes (oscillations) per second is the mains frequency.

The nominal grid frequency in the European electricity grid is 50 Hertz. To achieve this, the generation plants must feed in as much electricity at any given time as is consumed by the end consumers. In order to compensate for differences, the grid frequency is kept stable by calling up balancing energy, among other things.

If there is a positive difference between generation and consumption, the frequency rises; if there is a deficit, the frequency falls. The following data shows the grid frequency within the Continental Europe synchronous area.

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Note:

The data points published on this page are archived every one to four seconds and updated in between. The timestamp is given in local time (CET).