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Leading service provider for Transmission System Operators (TSOs) in the European electricity market.

Through our single trading platform we auction cross-border transmission capacity rights. We also provide accounting (clearing and settlement), contracting, reporting, project support and IT services.

Auctions

On behalf of TSOs, we organize long and short-term auctions of transmission capacity rights.

We offer the following products: yearly, seasonal, quarterly, monthly, weekly, daily and intraday.

Auction results Auction calendar

430+

Registered Market Participants
20k+

Auctions per year
100 %

Auction Tool Availability
85

Employees
47

TSOs serviced

Latest market messages

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[SWE D-2 UMM] Reduction sent during validation process applied for BD 25-09-2023

Published: 24/09/2023 | 07:12by CORESO
[SWE D-2 UMM] Missing CNEs for BD 25-09-2023

Published: 24/09/2023 | 07:12by CORESO
[SWE D-2 UMM] 70% CEP cap applied for BD 25-09-2023

Published: 24/09/2023 | 07:12by CORESO
[SWE D-2 UMM] LT TTC applied for BD 25-09-2023

Published: 24/09/2023 | 07:12by CORESO
Capacity Curtailment on the FR-IT border for delivery 24-09-2023

Published: 23/09/2023 | 07:42by JAO
Capacity Curtailment on the CH-IT border for delivery 24-09-2023

Published: 23/09/2023 | 07:40by JAO
Capacity Curtailment on the IF1 border for delivery 24-09-2023

Published: 22/09/2023 | 15:00by JAO

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Dear all, TTC reductions sent by TSOs during SWE CC D-2 for BD 25-09-2023: - REE - ES->FR - 06:30: 1950MW - ES->FR - 07:30: 1950MW - ES->FR - 08:30: 1950MW - ES->FR - 09:30: 1950MW - ES->FR - 10:30: 1950MW - ES->FR - 18:30: 1800MW - ES->FR - 19:30: 1800MW - ES->FR - 20:30: 1800MW - ES->FR - 21:30: 1800MW - ES->FR - 22:30: 1800MW - ES->FR - 23:30: 1800MW

Dear all, CNEs not found for next timestamps during SWE CC D-2 for BD 25-09-2023: - FR->ES - 15:30 - ES->FR - 12:30 - 15:30

Dear all, 70% CEP cap was applied for next timestamps during SWE CC D-2 for BD 25-09-2023: - PT->ES - 12:30 - 15:30

Dear all, LT TTC values were applied for next timestamps during SWE CC D-2 for BD 25-09-2023: - ES->FR - 12:30 - 15:30 - FR->ES - 15:30

1. TSO(s)*:

TERNA

2. Identification of affected Long Term Transmission Rights:

FR-IT

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

4. Affected volume in MW / hour for each concerned period:

24-09-2023 00:00 - 01:00 1277 MW

24-09-2023 01:00 - 02:00 1277 MW

24-09-2023 02:00 - 03:00 1277 MW

24-09-2023 03:00 - 04:00 1277 MW

24-09-2023 04:00 - 05:00 1277 MW

24-09-2023 05:00 - 06:00 1277 MW

24-09-2023 06:00 - 07:00 1277 MW

24-09-2023 07:00 - 08:00 1277 MW

24-09-2023 08:00 - 09:00 1277 MW

24-09-2023 09:00 - 10:00 1277 MW

24-09-2023 10:00 - 11:00 1277 MW

24-09-2023 11:00 - 12:00 1277 MW

24-09-2023 12:00 - 13:00 1277 MW

24-09-2023 13:00 - 14:00 1277 MW

24-09-2023 14:00 - 15:00 1277 MW

24-09-2023 15:00 - 16:00 1277 MW

24-09-2023 16:00 - 17:00 1277 MW

24-09-2023 17:00 - 18:00 1277 MW

24-09-2023 18:00 - 19:00 1277 MW

24-09-2023 19:00 - 20:00 1277 MW

24-09-2023 20:00 - 21:00 1277 MW

24-09-2023 21:00 - 22:00 1277 MW

24-09-2023 22:00 - 23:00 1277 MW

24-09-2023 23:00 - 24:00 1277 MW

5. Amount of LTTR remaining after curtailment:

24-09-2023 00:00 - 01:00 1201 MW

24-09-2023 01:00 - 02:00 1201 MW

24-09-2023 02:00 - 03:00 1201 MW

24-09-2023 03:00 - 04:00 1201 MW

24-09-2023 04:00 - 05:00 1201 MW

24-09-2023 05:00 - 06:00 1201 MW

24-09-2023 06:00 - 07:00 1201 MW

24-09-2023 07:00 - 08:00 1201 MW

24-09-2023 08:00 - 09:00 1201 MW

24-09-2023 09:00 - 10:00 1201 MW

24-09-2023 10:00 - 11:00 1201 MW

24-09-2023 11:00 - 12:00 1201 MW

24-09-2023 12:00 - 13:00 1201 MW

24-09-2023 13:00 - 14:00 1201 MW

24-09-2023 14:00 - 15:00 1201 MW

24-09-2023 15:00 - 16:00 1201 MW

24-09-2023 16:00 - 17:00 1201 MW

24-09-2023 17:00 - 18:00 1201 MW

24-09-2023 18:00 - 19:00 1201 MW

24-09-2023 19:00 - 20:00 1201 MW

24-09-2023 20:00 - 21:00 1201 MW

24-09-2023 21:00 - 22:00 1201 MW

24-09-2023 22:00 - 23:00 1201 MW

24-09-2023 23:00 - 24:00 1201 MW

6. Information on exact operational security limit(s) that are expected to be violated in the absence of curtailment*:

Expected violation of operational security limits of physical transmission assets

7. Why alternative measures are not sufficient to avoid the expected violation of operational security limit(s)*?

During the CC process, all the remedial actions provided by the TSOs are already considered by the CCC in the calculation.

The long-term allocated capacities for delivery date 24-09-2023 on the corridor CH-IT have been curtailed to ensure operation remains within Operational Security Limits.

24-09-2023 07:00 - 08:00 was reduced by 28.57 %

24-09-2023 08:00 - 09:00 was reduced by 28.57 %

24-09-2023 09:00 - 10:00 was reduced by 28.57 %

24-09-2023 10:00 - 11:00 was reduced by 28.57 %

Please consider the latest version of the programming authorizations.

1. TSO(s)*:

National Grid Interconnectors Limited (NGIC) and RTE EDF Transport S.A. (RTE)

2. Identification of affected Long Term Transmission Rights:

IF1-GB-FR

IF1-FR-GB

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

4. Affected volume in MW / hour for each concerned period:

24-09-2023 07:00 - 08:00 1000 MW

24-09-2023 08:00 - 09:00 1000 MW

24-09-2023 09:00 - 10:00 1000 MW

24-09-2023 10:00 - 11:00 1000 MW

24-09-2023 11:00 - 12:00 1000 MW

5. Amount of LTTR remaining after curtailment:

24-09-2023 07:00 - 08:00 0 MW

24-09-2023 08:00 - 09:00 0 MW

24-09-2023 09:00 - 10:00 0 MW

24-09-2023 10:00 - 11:00 0 MW

24-09-2023 11:00 - 12:00 0 MW

6. Information on exact operational security limit(s) that are expected to be violated in the absence of curtailment*:

Thermal Limits

7. Why alternative measures are not sufficient to avoid the expected violation of operational security limit(s)*?

Capacity limitation due to planned maintenance

*According to section 57.3 of the EU HAR, this field can be filled in within 24 hours after the initial publication

Resource Center

This section contains key information for market participants such as user guides, forms, auction rules, nomination deadlines and other documents.

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About us

We started as a shared auction platform for transmission capacity across Central Western Europe in 2008. Over time, we became the operator of the Single Allocation Platform and therefore the leading trading platform for European Transmission System Operators.

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We created a user guide to support the onboarding of market participants. Learn more about the steps to register, the required documents and our service desk platform.

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