Commission Regulation (EU) 2017/2196Show full title

SECTION 1 U.K. General provisions

Article 23 U.K. Design of the restoration plan

1. By 18 December 2018, each TSO shall design a restoration plan in consultation with relevant DSOs, SGUs, national regulatory authorities or entities referred to in Article 4(3), neighbouring TSOs and the other TSOs in that synchronous area.

2. When designing its restoration plan, each TSO shall take into account, at least, the following elements:

(a) the behaviour and capabilities of load and generation;

(b) the specific needs of the high priority significant grid users listed pursuant to paragraph (4); and

(c) the characteristics of its network and of the underlying DSOs networks.

3. The restoration plan shall contain at least the following provisions:

(a) the conditions under which the restoration plan is activated, as provided for in Article 25;

(b) restoration plan instructions to be issued by the TSO; and

(c) measures subject to real-time consultation or coordination with identified parties.

4. In particular, the restoration plan shall include the following elements:

(a) a list of the measures to be implemented by the TSO on its installations;

(b) a list of the measures to be implemented by DSOs and of the DSOs responsible for implementing those measures on their installations;

(c) a list of the SGUs responsible for implementing on their installations the measures that result from mandatory requirements set out in Regulations (EU) 2016/631, (EU) 2016/1388 and (EU) 2016/1447 or from national legislation and a list of the measures to be implemented by those SGUs;

(d) the list of high priority significant grid users and the terms and conditions for their disconnection and re-energisation;

(e) a list of substations which are essential for its restoration plan procedures;

(f) the number of power sources in the TSO's control area necessary to re-energise its system with bottom-up re-energisation strategy having black start capability, quick re-synchronisation capability (through houseload operation) and island operation capability; and

(g) the implementation deadlines for each listed measure.

5. The restoration plan shall include at least the following technical and organisational measures specified in Chapter III:

(a) re-energisation procedure, in accordance with Section 2;

(b) frequency management procedure, in accordance with Section 3; and

(c) resynchronisation procedure, in accordance with Section 4.

6. The measures contained in the restoration plan shall comply with the following principles:

(a) their impact on system users shall be minimal;

(b) they shall be economically efficient;

(c) only those measures that are necessary shall be activated; and

(d) they shall not lead the interconnected transmission systems into emergency state or blackout state.

Article 24 U.K. Implementation of the restoration plan

1. By 18 December 2019 each TSO shall implement those measures of its restoration plan that are to be implemented on the transmission system. It shall maintain the implemented measures henceforth.

2. By 18 December 2018 each TSO shall notify the transmission connected DSOs of the measures, including the deadlines for implementation, which are to be implemented on:

(a) the DSO's installations pursuant to Article 23(4); and

(b) the installations of SGUs identified pursuant to Article 23(4) and connected to their distribution systems; and

(c) the installations of restoration service providers connected to their distribution systems; and

(d) the installations of DSOs connected to their distribution systems.

3. By 18 December 2018 each TSO shall notify the SGUs identified pursuant to Article 23(4) and restoration service providers directly connected to its transmission system of the measures that are to be implemented on their installations, including the deadlines for implementation pursuant to point (g) of Article 23(4).

4. When provided for in national legislation, the TSO shall notify directly the SGUs identified pursuant to Article 23(4) and restoration service providers and DSOs connected to distribution systems and shall inform the concerned DSO of this notification.

5. Where a TSO notifies a DSO in accordance with paragraph 2, the DSO shall notify in turn, without delay, the SGUs, restoration service providers and DSOs connected to its distribution system of the measures of the restoration plan which they have to implement on their respective installations, including the deadlines for implementation, pursuant to point (g) of Article 23(4).

6. Each notified DSO, SGUs and restoration service provider shall:

(a) implement the measures notified no later than 12 months from the date of notification;

(b) confirm the implementation of the measures to the notifying system operator, who shall, when different from the TSO, notify the TSO; and

(c) maintain the measures implemented on its installations.

Article 25 U.K. Activation of the restoration plan

1. Each TSO shall activate the procedures of its restoration plan in coordination with the DSOs and SGUs identified pursuant to Article 23(4) and with restoration service providers in the following cases:

(a) when the system is in the emergency state in accordance with the criteria in Article 18(3) of Regulation (EU) 2017/1485, once the system is stabilised following activation of the measures of the system defence plan; or

(b) when the system is in the blackout state in accordance with the criteria in Article 18(4) of Regulation (EU) 2017/1485.

2. During system restoration, each TSO shall identify and monitor:

(a) the extent and borders of the synchronised region or synchronised regions to which its control area belongs;

(b) the TSOs with which it shares a synchronised region or synchronised regions; and

(c) the available active power reserves in its control area.

3. Each DSO and SGU identified pursuant to Article 23(4), as well as each restoration service provider shall execute without undue delay the restoration plan instructions issued by the TSO, pursuant to point (b) of Article 23(3) in accordance with the restoration plan procedures.

4. Each TSO shall activate those procedures of its restoration plan that have a significant cross-border impact in coordination with the impacted TSOs.