Assessment of risks to security of electricity supply
Each competent authority shall ensure that all relevant risks relating to security of electricity supply are assessed in accordance with the rules laid down in this Regulation and in Chapter IV of Regulation (EU) 2019/943. To that end, it shall cooperate with transmission system operators, distribution system operators, regulatory authorities, the ENTSO for Electricity, regional coordination centres and other relevant stakeholders, as required.
Methodology for identifying regional electricity crisis scenarios
1. By 5 January 2020, the ENTSO for Electricity shall submit to ACER a proposal for a methodology for identifying the most relevant regional electricity crisis scenarios.
2. The proposed methodology shall identify electricity crisis scenarios in relation to system adequacy, system security and fuel security on the basis of at least the following risks:
(a)
rare and extreme natural hazards;
(b)
accidental hazards going beyond the N-1 security criterion and exceptional contingencies;
(c)
consequential hazards including the consequences of malicious attacks and of fuel shortages.
3. The proposed methodology shall include at least the following elements:
(a)
a consideration of all relevant national and regional circumstances, including any subgroups;
(b)
interaction and correlation of risks across borders;
(c)
simulations of simultaneous electricity crisis scenarios;
(d)
ranking of risks according to their impact and probability;
(e)
principles on how to handle sensitive information in a manner that ensures transparency towards the public.
4. When considering the risks of disruption of gas supply in the context of identifying the risks pursuant to point (c) of paragraph 2 of this Article, the ENTSO for Electricity shall use the natural gas supply and infrastructure disruption scenarios developed by ENTSOG pursuant to Article 7 of Regulation (EU) 2017/1938.
5. Before submitting the proposed methodology to ACER, the ENTSO for Electricity shall conduct a consultation involving at least the regional coordination centres, industry and consumer organisations, producers or their trade bodies, transmission system operators and relevant distribution system operators, competent authorities, regulatory authorities and other relevant national authorities. The ENTSO for Electricity shall duly take into account the results of the consultation and present them, together with the proposed methodology, at a meeting of the ECG.
6. Within two months of receipt of the proposed methodology, ACER shall, after consulting the ECG, in its formation composed only of representatives of the Member States, approve or amend the proposal. The ENTSO for Electricity and ACER shall publish the final version of the methodology on their websites.
7. The ENTSO for Electricity shall update and improve the methodology in accordance with paragraphs 1 to 6 where significant new information becomes available. The ECG in its formation composed only of representatives of the Member States may recommend, and ACER or the Commission may request, such updates and improvements with due justification. Within six months of receipt of the request, the ENTSO for Electricity shall submit to ACER a draft of the proposed changes. Within two months of receipt of such a draft, ACER shall, after consulting the ECG, in its formation composed only of representatives of the Member States, approve or amend the proposed changes. The ENTSO for Electricity and ACER shall publish the final version of the updated methodology on their websites.
Identification of regional electricity crisis scenarios
1. Within six months of the approval of a methodology pursuant to Article 5(6), the ENTSO for Electricity shall, on the basis of that methodology and in close cooperation with the ECG, regional coordination centres, competent authorities and regulatory authorities, identify the most relevant electricity crisis scenarios for each region. It may delegate tasks relating to the identification of regional electricity crisis scenarios to the regional coordination centres.
2. The ENTSO for Electricity shall submit the regional electricity crisis scenarios to the relevant transmission system operators, regional coordination centres, competent authorities and regulatory authorities as well as to the ECG. The ECG may recommend amendments.
3. The ENTSO for Electricity shall update the regional electricity crisis scenarios every four years, unless circumstances warrant more frequent updates.
Identification of national electricity crisis scenarios
1. Within four months of the identification of the regional electricity crisis scenarios in accordance with Article 6(1), the competent authority shall identify the most relevant national electricity crisis scenarios.
2. In identifying the national electricity crisis scenarios, the competent authority shall consult the transmission system operators, the distribution system operators that the competent authority considers to be relevant, the relevant producers or their trade bodies, and the regulatory authority where it is not the competent authority.
3. The national electricity crisis scenarios shall be identified on the basis of at least the risks referred to in Article 5(2) and shall be consistent with the regional electricity crisis scenarios identified in accordance with Article 6(1). Member States shall update the national electricity crisis scenarios every four years, unless circumstances warrant more frequent updates.
4. Within four months of identification of regional electricity crisis scenarios in accordance with Article 6(1), Member States shall inform the ECG and the Commission of their assessment of the risks in relation to the ownership of infrastructure relevant for security of electricity supply, and any measures taken to prevent or mitigate such risks, with an indication of why such measures are considered necessary and proportionate.
Methodology for short-term and seasonal adequacy assessments
1. By 5 January 2020, the ENTSO for Electricity shall submit to ACER a proposal for a methodology for assessing seasonal and short-term adequacy, namely monthly, week-ahead to at least day-ahead adequacy, which shall cover at least the following:
(a)
the uncertainty of inputs such as the probability of a transmission capacity outage, the probability of an unplanned outage of power plants, severe weather conditions, variable demand, in particular peaks depending on weather conditions, and variability of production of energy from renewable sources;
(b)
the probability of the occurrence of an electricity crisis;
(c)
the probability of the occurrence of a simultaneous electricity crisis.
2. The methodology referred to in paragraph 1 shall provide for a probabilistic approach, including multiple scenarios, and shall take into account the national, regional and Union context, including the level of interconnection between Member States and, to the extent possible, third countries within synchronous areas of the Union. The methodology shall take into account the specificities of each Member State's energy sector, including specific weather conditions and external circumstances.
3. Before submitting the proposed methodology, the ENTSO for Electricity shall conduct a consultation involving at least the regional coordination centres, industry and consumer organisations, producers or their trade bodies, transmission system operators, relevant distribution system operators, competent authorities, regulatory authorities and other relevant national authorities. The ENTSO for Electricity shall duly take into account the results of the consultation and present them, together with the proposed methodology, at a meeting of the ECG.
4. Within two months of receipt of the proposed methodology, ACER shall, after consulting the ECG in its formation composed only of representatives of the Member States, approve or amend the proposal. The ENTSO for Electricity and ACER shall publish the final version of the methodology on their websites.
5. The ENTSO for Electricity shall update and improve the methodology in accordance with paragraphs 1 to 4 where significant new information becomes available. The ECG in its formation composed only of representatives of the Member States may recommend, and ACER or the Commission may request, such updates and improvements with due justification. Within six months of receipt of the request, the ENTSO for Electricity shall submit to ACER a draft of the proposed changes. Within two months of receipt of such a draft, ACER shall, after consulting the ECG, in its formation composed only of representatives of the Member States, approve or amend the proposed changes. The ENTSO for Electricity and ACER shall publish the final version of the updated methodology on their websites.
Short-term and seasonal adequacy assessments
1. All short-term adequacy assessments, whether carried out at national, regional or Union level, shall be carried out in accordance with the methodology developed pursuant to Article 8.
2. The ENTSO for Electricity shall carry out seasonal adequacy assessments in accordance with the methodology developed pursuant to Article 8. It shall publish the results for the winter adequacy assessment by 1 December each year and for the summer adequacy assessment by 1 June each year. It may delegate tasks relating to the adequacy assessments to regional coordination centres. It shall present the adequacy assessment at a meeting of the ECG, which may make recommendations where appropriate.
3. The regional coordination centres shall carry out week-ahead to at least day ahead adequacy assessments in accordance with Regulation (EU) 2017/1485 on the basis of the methodology adopted pursuant to Article 8 of this Regulation.
Source: EUR-Lex (Publications Office of the EU), © European Union, reuse permitted under Commission Decision 2011/833/EU.
