ACER is organising three hybrid workshops in its premises in Ljubljana and online in April/May 2023 on certain technical requirements related to the electricity grid connection network codes:

• ACER workshop on electromobility, power-to-gas demand units and heat-pumps (17 April 2023);
• ACER workshop on rate of change of frequency and grid forming capabilities (10 May 2023); and
• ACER workshop on electricity storage (11 May 2023).

The objectives of these workshops are:

• To present and discuss potential amendments to two network codes namely the Network Code on Requirements for Grid Connection of Generators and the Network Code on Demand Connection; and
• To clarify the purpose, process and timeline for the amendments of the network codes.

EU stakeholder associations that are interested in presenting their views (up to 10 slots of 8 min each) on the topics tackled in the workshops should contact ACER on ACER-ELE-2022-015(at)acer.europa.eu before the deadline indicated in the event pages. ACER will consider the expressions of interest and will announce the final agendas ahead of the events.

What are the next steps?

These workshops precede a Public Consultation, to be organised later in 2023 on concrete amendment proposals regarding the two network codes.

Europe’s long-term electricity market relies on so-called long-term transmission rights (LTTRs), which allow market participants to hedge their exposure across bidding zones. The allocation of those LTTRs is currently not coordinated across different borders, which leads to inefficiencies in some capacity calculation regions (CCRs).

To enable the implementation of the long-term flow-based allocation in the Core and Nordic CCRs, ACER approved on 22 March 2023 three proposals from Transmission System Operators (TSOs) for amendments to the forward capacity allocation methodologies related to:

• Single allocation platform, including the methodology for sharing costs for its establishment, development and operation (SAP);
• Congestion income distribution (CID); and
• Sharing costs incurred to ensure firmness and remuneration of LTTRs (FRC).

To ensure an informed decision, ACER organised a workshop on 17 November 2022 and ran a public consultation from 26 October to 28 November 2022 to gather stakeholders’ views.

What are the benefits of the new rules?

The newly approved methodologies include requirements for flow-based allocation of LTTRs, aiming to make the long-term market more efficient by allowing competition between the different bidding zone borders of a capacity calculation region and align it with the day-ahead market design. In particular, this revision was needed to enable the implementation of two ongoing projects for long-term flow-based capacity calculation and allocation; in the Core and the Nordic CCRs. To finalise this implementation, the last methodology still needs to be revised: the Harmonised Allocation Rules (HAR).

The Core region comprises 13 countries: Austria, Belgium, Czech Republic, Croatia, France, Germany, Hungary, Luxemburg, the Netherlands, Poland, Romania, Slovakia and Slovenia.

The Nordic region comprises 4 countries: Denmark, Finland, Norway and Sweden.

Access the ACER Decision 05/2023 on SAP and its Annex I, Annex Ia, Annex II.

Access the ACER Decision 06/2023 on CID and its Annex I, Annex Ia, Annex II.

Access the ACER Decision 07/2023 on FRC and its Annex I, Annex Ia, Annex II.

See the ACER Evaluation of Responses to the public consultation. 

ACER’s Position Paper towards greater consistency of cost benefit analysis methodologies, published today, identifies topics where consistency is needed across the Cost Benefit Analysis methodologies (CBA methodologies) currently under development by the European Commission and the European electricity and gas grid operators.

Greater consistency of CBA methodologies will enable a more efficient energy system across Europe by ensuring similar terms of assessment of projects in a technology neutral way.

Why did ACER issue this Position Paper?

The updated TEN-E Regulation (Regulation (EU) 2022/869) introduced the task of the development of separate CBA methodologies for the various energy infrastructure categories and by different entities:  

• The EU network of transmission system operators for electricity (ENTSO-E) for electricity transmission projects (including offshore grids);
• The EU network of transmission system operators for gas (ENTSOG)  for hydrogen projects; and
• The European Commission (EC) for projects of energy storage, electricity smart grids, gas smart grids, electrolysers and CO2 networks and facilities.

ACER must provide opinions on the ENTSO-E and ENTSOG CBA methodologies and on the draft lists of PCIs prepared by the EC. The Regulation tasks ACER with promoting consistency in the CBA methodologies developed by the EC with the CBA methodologies elaborated by ENTSO-E and ENTSOG.

To this end, ACER’s Position Paper sets out the topics where consistency should be promoted among all CBA methodologies.

Where is consistency of CBA methodologies needed?

1. Common input data set and assumptions;
2. Selection and use of scenarios and ways to deal with uncertainty;
3. Length of assessment period, residual value of projects, and social discount rate;
4. Definition of reference case networks;
5. Treatment of interdependency with other projects;
6. Project implementation status;
7. Clustering rules;
8. Criteria to assess the plausibility of projects’ commissioning dates;
9. Implementation Guidelines;
10. Definition and handling of capital and operational expenditures;
11. Consideration of the impact of the future extreme weather events on infrastructure resilience;
12. Approach to calculate social and environmental impacts of projects;
13. Methodology to calculate the benefit-to-cost ratio and Net Present Value of projects;
14. Sensitivities;
15. Modelling interlinkages of CBA methodologies;
16. Presentation of CBA results.

Next steps

The ACER Position Paper could serve as a reference document, e.g. during the cooperation with the EC and the ENTSOs during the development phase of their CBA methodologies, as well as when drafting the ACER opinions on the ENTSOs’ CBA methodologies, or when the EC Advisory Board for Climate Change forms their views on the methodologies.

Access the ACER Position Paper.