Replacement Reserves

The active power reserves available to restore or support the required level of frequency restoration reserves (FRR) to be prepared for additional system imbalances, including generation reserves.

Last Updated:  November 28, 2025

Version:  1.0.0

Generated:  December 04, 2025

Definition in a European Union Regulation

Source: p5

‘replacement reserves’ or ‘RR’ means the active power reserves available to restore or support the required level of FRR to be prepared for additional system imbalances, including generation reserves;