Article 179

All TSOs of each synchronous area shall define in the synchronous area operational agreement a method for determining the limits for sharing of RR with other synchronous areas. That method shall take into account: the operational impact between the synchronous areas; the stability of the RRP of the synchronous area; the maximum reduction of RR that can be taken into account in the RR dimensioning rules in accordance with Article 160 as a result of the RR sharing; the ability of the TSOs of the synchronous area to comply with the frequency quality target parameters defined in accordance with Article 127 and the ability of the LFC blocks to comply with the FRCE error target parameters defined in accordance with Article 128; and the operational security. All TSOs of the LFC blocks involved in the sharing of RR between synchronous areas shall organise that sharing so that the TSOs of an 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 accordance with Article 160(2) from a LFC block in the second synchronous area. Each operator of an HVDC interconnector shall control the active power flow over the HVDC interconnector following the instructions provided by either the control capability providing TSO or the control capability receiving TSO in accordance with the RR technical minimum requirements in Article 161. All TSOs of each LFC block to which the reserve control capability providing TSO and reserve control capability receiving TSO belong to, shall specify the conditions for the sharing of RR in an RR sharing agreement.

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Source: EUR-Lex (Cellar) · retrieved 2026-11-04 · Text as adopted (Official Journal); later amendments are not incorporated in this text.