The European Union Agency for the Cooperation of Energy Regulators (ACER) adopted five Decisions, marking a milestone in securing the electricity network operation in Central and South East Europe and setting up an effective and cost efficient coordination for remedial actions.

Safeguarding the electricity network

Two Decisions establish the methodology for regional operational security coordination (ROSC) in the Central (Core) and South East Europe (SEE) capacity calculation regions (CCR). The methodologies provide rules for an efficient and effective coordination of remedial actions on a cross-border level in both regions, therefore safeguarding the electricity network.

Minimising the costs for Transmission System Operators

A third Decision sets up the methodology for coordinating the redispatching and countertrading, which represent a sub-set of remedial actions from the regional operational security coordination in the Core CCR. This methodology establishes coordinated and efficient redispatching and countertrading, used by Transmission System Operators (TSOs) to solve network congestions.

Fostering a fairer distribution of network congestion costs

Two Decisions concern the methodologies for sharing the costs of redispatching and countertrading in the Core and South East Europe CCR. By applying the “polluter pays" principle, those TSOs from areas that are identified as responsible for congestions need to bear the corresponding redispatching and countertrading costs to solve them.

Access all Decisions.

The European Agency for the Cooperation of Energy Regulators (ACER) welcomed the valuable discussions at the Electricity Regulatory Forum (#FlorenceForum), held on 7-8 December 2020. The Forum emphasised the critical importance of Clean Energy Package implementation as a key pillar to addressing the challenges of the European Green Deal at lower cost. The Forum, organised by the European Commission, brings together Members States, regulators and industry.

Clean Energy Package -  not yet done

In his key messages on the Green Deal to the Forum, ACER Director, Christian Zinglersen said:

“While a lot of progress has been achieved in the electricity sector over the last 10 years, the temptation is sometimes high to move on as attention shifts to new and important challenges, we should not fall for this trap to “tick the box" on electricity market integration. It is not done yet!'

Green Deal issues such as the new off shore wind strategy are underpinned by technical work.  Key issues addressed at this Florence Forum included:

• bidding zone configuration

• the 70% cross-zonal target for interconnectors

• resource adequacy

• cyber security

• TSO-DSO cooperation

• flexibility

Bidding Zones

ACER emphasised the necessity of an unbiased, sound, technical and neutral bidding zone review.

Resource Adequacy and Capacity Mechanisms

The Forum sees that a well-functioning market should be the first approach to ensure adequacy before introducing a capacity mechanism and for this purpose, the market reform plans have to be implemented in a timely manner by the Member States.

ACER in close collaboration with ENTSO-E, took the first steps this year in developing and adopting methodologies underpinning future European-wide resource adequacy assessments, informing the assessment done nationally. Effective cross-border participation in capacity mechanisms should

• Reflect actual contributions to resource adequacy

• Ensure non-discrimination between domestic and foreign capacity providers

• Provide efficient signals for investment and operations

Capacity Allocation and Congestion Management (CACM) amendments

ACER will consult stakeholders on the scope of the amendments for the ACER recommendation on CACM.

70% Cross- Zonal Capacity

Calling for Transmission System Operators (TSOs) to make more interconnector capacity available for cross-zonal trade (as per the minimum 70% target), ACER provided a glimpse into its upcoming 70% Report (to be published before year end).

• Most TSOs made a noticeable effort to provide extensive and accurate data.

• Data is still an issue for the Nordic and Baltic regions (no data at all) and for Italy North and in France.

• On DC borders, the 70% target was fulfilled most of the time with few substantial exceptions whereas on AC borders there is significant room for improvement.

ACER welcomes that CEP implementation remains the priority in the next years

ACER remains fully committed to this implementation process and, in close coordination with NRAs, to minimising potential delays. In that respect, the following ACER's deliverables will represent key milestones to the market integration process:

• The implementation of the ACER's decisions on the European resources adequacy assessment

• The implementation of the ACER's decision on the methodology for the bidding zone review

• The implementation of the ACER's decisions on cost-sharing of redispatching and countertrading for the Core and SEE regions

• The forthcoming ACER's special edition report on the 70% target ​

ACER is also committed to taking its full part to the network codes and guidelines' amendment process.

ACER presented to this Florence Forum on:

• its planning for the amendments of the guideline on Capacity Allocation and Congestion - Management (CACM);

• the amendment of grid connection network codes;

• the 70% target;

• Resource adequacy and capacity mechanism

Visit ​​the European Commission website for the Forum agenda, conclusion and slides.

What's coming next?

• 14 Dec: MESC-meeting on the scope of the amendments for CACM recommendation

• 18 Dec '20: Publication of the ACER Report on the 70% cross-zonal target

• 21 Jan '21: ACER webinar on 70% cross-zonal target

The European Union Agency for the Cooperation of Energy Regulators (ACER) publishes today a Decision establishing the common methodology for splitting long-term cross-zonal electricity capacity in Bulga​ria, Greece and Romania (the South East Europe Region). This methodology will foster a coordinated and more integrated usage of long-term capacity in the region.

The application of this methodology will follow the implementation of the long-term capacity calculation methodology for the South East Europe region. The latter was approved on 22 October 2020 by the regulatory authorities of the region, and should be implemented no later than 1 January 2023.

Access the Decision.

Find out more details on ​the methodology for splitting long-term cross-zonal electricity capacity. ​

The European Union Agency for the Cooperation of Energy Regulators (ACER) published today a Decision​ on the methodology and assumptions to be used in the bidding zone review process and for the alternative bidding zone configurations to be considered, according to the EU Regulation on the internal market for electricity.

The proposed package for the bidding zone review was developed by the Transmission System Operators (TSOs) and was referred to ACER in July 2020 by the relevant regulatory authorities, as a unanimous agreement could not be found.

The Decision of ACER includes two key aspects:

• Approval of the bidding zone review methodology and assumptions to be used for the bidding zone review process, subject to the necessary amendments.

• A request to TSOs to provide results derived from a Locational Marginal Pricing (LMP) analysis to enable ACER to take a Decision on alternative bidding zone configurations. ​

Access the Decision and its Annexes.