# Commission Regulation (EU) 2017/2196 of 24 November 2017 establishing a network code on electricity emergency and restoration (Text with EEA relevance), Article 3: Definitions

Extent: E+W+S+N.I.

Except where stated in this Article, for the purposes of this Regulation, the definitions provided for in ... Article 2 of Regulation (EU) 2019/943 of the European Parliament and of the Council of 5 June 2019 on the internal market for electricity (recast), Article 2 of Commission Regulation (EU) No 543/2013, ... Article 2 of Regulation (EU) 2016/631, Article 2 of Commission Regulation (EU) 2016/1388, Article 2 of Regulation (EU) 2016/1447 ... and Article 2 of Regulation (EU) 2017/1485 shall apply.
In addition, the following definitions shall apply:
(1)‘defence service provider’ means a legal entity with a legal or contractual obligation to provide a service contributing to one or several measures of the system defence plan;
(2)‘restoration service provider’ means a legal entity with a legal or contractual obligation to provide a service contributing to one or several measures of the restoration plan;
(3)‘high priority significant grid user’ means the significant grid user for which special conditions apply for disconnection and re-energisation;
(4)‘netted demand’ means the netted value of active power seen from a given point of the system, computed as (load — generation), generally expressed in kilowatts (kW) or megawatts (MW), at a given instant or averaged over any designated interval of time;
(5)‘restoration plan’ means all technical and organisational measures necessary for the restoration of the system back to normal state;
(6)‘re-energisation’ means reconnecting generation and load to energise the parts of the system that have been disconnected;
(7)‘top-down re-energisation strategy’ means a strategy that requires the assistance of other TSOs to re-energise parts of the system of a TSO;
(8)‘bottom-up re-energisation strategy’ means a strategy where part of the system of a TSO can be re-energised without the assistance from other TSOs;
(9)‘resynchronisation’ means synchronising and connecting again two synchronised regions at the resynchronisation point;
(10)‘frequency leader’ means the TSO appointed and responsible for managing the system frequency within a synchronised region or a synchronous area in order to restore system frequency back to the nominal frequency;
(11)‘synchronised region’ means the fraction of a synchronous area covered by interconnected TSOs with a common system frequency and which is not synchronised with the rest of the synchronous area;
(12)‘resynchronisation leader’ means the TSO appointed and responsible for the resynchronisation of two synchronised regions;
(13)‘resynchronisation point’ means the device used to connect two synchronised regions, usually a circuit breaker.
(15)“SGU” or “significant grid user” means an electricity grid user of a kind specified in Article 2(1) of Commission Regulation (EU) 2017/1485.

---
Source: https://www.legislation.gov.uk/eur/2017/2196/article/3 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-2196/article-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.