Glossary

Critical entity

Definition

public or private

  • electricity undertaking,
  • distribution system operator (DSO),
  • transmission system operator (TSO),
  • producer,
  • nominated electricity market operator or
  • electricity market participant providing aggregation, demand response or energy storage services, 

which has been identified as such by a Member State according to the rules set out by the CER Directive

Reference

CER Directive Article 2 Paragraph 1

CER Directive Article 6

CER Directive Annex, Point 1 (a), column 3

Resilience

Definition

a critical entity’s ability to prevent, protect against, respond to, resist, mitigate, absorb, accommodate and recover from an incident

Reference

CER Directive Article 2 Paragraph 2

Essential service

Definition

a service which is crucial for the maintenance of electricity supply

Reference

CER Directive Article 2 Paragraph 5

Critical infrastructure

Definition

an asset, a facility, equipment, a network or a system, or a part of an asset, a facility, equipment, a network or a system, which is necessary for the provision of an essential service

Reference

CER Directive Article 2 Paragraph 4

Risk

Definition

the potential for loss or disruption caused by an incident and is to be expressed as a combination of the magnitude of such loss or disruption and the likelihood of occurrence of the incident

Reference

CER Directive Article 2 Paragraph 6

Single point of contact

Definition

designated or established by the Member States, single points of contacts exercise a liaison function for the purpose of ensuring cross-border cooperation with the single points of contact of other Member States and the Critical Entities Resilience Group. Where relevant, a Member State shall designate its single point of contact within a competent authority.

Reference

CER Directive Article 7 Paragraph 2

Competent authority

Definition

designated or established by each Member State, competent authorities are responsible for the correct application and, where necessary, enforcement of the rules set out in the relevant Directive at national level. Member States may designate and/or establish one or more competent authorities.

Reference

CER Directive Article 7 Paragraph 1

Critical entitiy of particular European significance

Definition

An entity shall be considered a critical entity of particular European significance where it:

  • has been identified as a critical entity pursuant the CER Directive;
  • provides the same or similar essential services to or in six or more Member States; and
  • has been notified of had been identified as a critical entity of particular European significance.

Reference

CER Directive Article 6 Paragraph 1

CER Directive Article 17 Paragraph 1

CER Directive Article 17 Paragraph 3

Advisory missions

Definition

Advisory missions may be organized by the Commission, on its own initiative or at the request of the concerned Member States, to assess the measures that a critical entity of particular European significance has put in place to meet its obligations under Chapter III of the CER Directive. Advisory missions shall be organised and conducted according to rules which are to be laid down in an implementing act to be adopted by the Commission. The advisory mission shall report its findings to all the parties concerned.

Reference

CER Directive Article 18

Electricity crisis scenario

Definition

a description of an initiating event or a chain of events that will (or is expected to) lead to a deterioration of security of supply of electricity affecting community or whole society

Reference

CSM Article 2 Paragraph (h)

Regional electricity crisis

Definition

a present or imminent situation in which more than one Member State has declared an electricity crisis at the same time (simultaneous crisis in two or more Member States)

Reference

CSM Article 2 Paragraph (i)

RCC (Regional Coordination Center)

Definition

Regional coordination centres complement the role of transmission system operators by performing the tasks of regional relevance assigned to them in accordance with Regulation (EU) 2019/943, Article 37

Reference

Regulation (EU) 2019/943, Articles 35-47