Cross-border RR activation process
Article 148
1. The control target of the cross-border RR activation process shall aim at enabling a TSO to perform the RRP through control program between LFC areas. 2. Each TSO shall have the right to implement the cross-border RR activation process for LFC areas within the same LFC block, between different LFC blocks or between different synchronous areas by concluding a cross-border RR activation agreement. 3. TSOs shall implement the cross-border RR activation process in a way which does not affect: (a) the stability of the FCP of the synchronous area or synchronous areas involved in the cross-border RR activation process; (b) the stability of the FRP and the RRP of each LFC area operated by participating or affected TSOs; and (c) the operational security. 4. TSOs shall implement the control program between LFC areas of the same synchronous area by carrying out at least one of the following actions: (a) determining an active power flow over a virtual tie-line which shall be part of the FRCE calculation; (b) adjusting a control program; or (c) adjusting active power flows over HVDC interconnectors. 5. TSOs shall implement the control program between LFC areas of different synchronous areas by adjusting active power flows over HVDC interconnectors. 6. All TSOs participating in the same cross-border RR activation process shall ensure that the sum of all control programs is equal to zero. 7. The cross-border RR activation process shall include a fall-back mechanism which shall ensure that the control program of each LFC area is zero or limited to a value for which operational security can be guaranteed.