Frequency Containment Reserve

The active power reserves available to contain system frequency after the occurrence of an imbalance.

Last Updated:  November 28, 2025

Version:  1.0.0

Generated:  December 04, 2025

Tags:  

# frequency-control    # reserve    # european-union    # europe

See Also:  

Contingency Reserve

Definition in a European Union Regulation

Source: p5

‘frequency containment reserves’ or ‘FCR’ means the active power reserves available to contain system frequency after the occurrence of an imbalance.

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