Article 171

Each operator and/or owner of an HVDC interconnector which interconnects synchronous areas shall provide to the connecting TSOs the capability to perform the exchange and sharing of FCR, FRR and RR if this technology is installed. All TSOs of the synchronous area shall specify in the synchronous area operational agreement the roles and the responsibilities of the reserve connecting TSO, the reserve receiving TSO and the affected TSO for the exchange of reserves as well as for the control capability providing TSO, control capability receiving TSO and affected TSO for the sharing of reserves between synchronous areas. The reserve connecting TSO and reserve receiving TSO or the control capability providing TSO and the control capability receiving TSO shall notify the exchange or sharing of FCR, FRR or RR in accordance with Article 150. The reserve connecting TSO and reserve receiving TSO involved in the exchange of reserves shall specify, in an exchange agreement, their roles and responsibilities, including: the responsibility of the reserve instructing TSO for the reserve capacity of the reserve exchange; the amount of the reserve capacity subject to the exchange of reserves; the implementation of the cross-border FRR/RR activation process in accordance with Articles 147 and 148; the implementation of the prequalification for the reserve capacity subject to the exchange of reserves in accordance with Articles 155, 159 and 162; the responsibility to monitor compliance with the technical requirements and availability requirements of the reserve capacity subject to the exchange of reserves pursuant to Articles 158(5) and 161(5); and procedures to ensure that the exchange of reserves does not lead to power flows that violate the operational security limits. The control capability providing and control capability receiving TSO involved in the sharing of reserves shall specify their roles and responsibilities in a sharing agreement, including: the amount of reserve capacity subject to the sharing of reserves; the implementation of the cross-border FRR/RR activation process in accordance with Articles 147 and 148; and the procedures to ensure that the sharing of reserves does not lead to power flows that violate the operational security limits. The reserve connecting TSO and reserve receiving TSO involved in the exchange of reserves, or the control capability providing and control capability receiving TSO involved in the sharing of reserves shall develop and adopt an HVDC operating and coordination agreement with the HVDC interconnector owners and/or HVDC interconnector operators or with legal entities comprising HVDC interconnector owners and/or HVDC interconnector operators, including: the interactions across all timescales, including planning and activation; the MW/Hz sensitivity factor, linearity/dynamic or static/step response function of each HVDC interconnector connecting synchronous areas; and the share/interaction of these functions across multiple HVDC paths between the synchronous areas. Any reserve connecting TSO, reserve receiving TSO, control capability providing TSO, control capability receiving TSO or affected TSO involved in the exchange or sharing of reserves may refuse the exchange or sharing of reserve where it would result in power flows that violate the operational security limits when activating the reserve capacity subject to the exchange or sharing of reserve. The involved TSOs shall ensure that exchange of reserves between synchronous areas does not prevent any TSO from complying with the reserve requirements in Articles 153, 157 and 160. The reserve connecting TSO and reserve receiving TSO and the control capability providing and control capability receiving TSO shall specify procedures in an exchange agreement or sharing agreement for cases when the exchange or the sharing of reserves between synchronous areas cannot be executed in real-time.

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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.