Exchange of RR between synchronous areas
Article 178
1. All TSOs of each synchronous area shall define in the synchronous area operational agreement a method to determine limits for the exchange of RR with other synchronous areas. That method shall take into account: (a) the operational impact between the synchronous areas; (b) the stability of the RRP of the synchronous area; (c) the ability of the synchronous area to comply with the frequency quality target parameters defined in accordance with Article 127 and the FRCE target parameters defined in accordance with Article 128; and (d) the operational security. 2. All TSOs of the LFC blocks involved in the exchange of RR between synchronous areas shall organise that exchange so that the TSOs of a LFC block in the first synchronous area may receive a share of the total reserve capacity on RR required for their LFC block as defined in Article 160(2) from a LFC block in the second synchronous area. 3. The share of the total reserve capacity on RR required for the LFC block in the synchronous area where it is exchanged shall be provided from the LFC block in the second synchronous area in addition to the total reserve capacity on RR required for that second LFC block in accordance with Article 160(2). 4. Each operator of a HVDC interconnector shall control the active power flow over the HVDC interconnector following the instructions provided by either the reserve connecting TSO or the reserve receiving TSO in accordance with the RR technical minimum requirements in Article 161. 5. All TSOs of the LFC blocks to which the reserve connecting TSO and the reserve receiving TSO belong shall specify the conditions for the exchange of RR in an RR exchange agreement.