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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.

 

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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.

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OPS
  • 500+
    Registered market participants
  • 26k+
    Auctions held annually
  • 100%
    Auction tool availability
  • 80+
    Employees
  • 50
    TSOs serviced

Latest market messages

Availability of Rights Documents and Allocation Results

by JAO

Please be informed that the Rights documents and allocation results are temporaly not distributed automatically by our system.

We kindly ask that you download these files directly from the Trader UI.

Should you require any assistance accessing the documents, please do not hesitate to contact us.



Capacity Curtailment on the IT-GR border for delivery period 03-09-2026

by JAO

1. TSO(s)*:

TERNA, ADMIE

2. Identification of affected Long Term Transmission Rights:

IT-GR

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

03-09-2026 20:00 - 21:00 500 MW

03-09-2026 21:00 - 22:00 500 MW

03-09-2026 22:00 - 23:00 500 MW

5. Amount of LTTR remaining after curtailment:

03-09-2026 20:00 - 21:00 0 MW

03-09-2026 21:00 - 22:00 0 MW

03-09-2026 22:00 - 23:00 0 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

 

Capacity Curtailment on the ES-FR border for delivery period 03-09-2026

by JAO

1. TSO(s)*:

RTE, REE

2. Identification of affected Long Term Transmission Rights:

ES-FR

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

03-09-2026 11:00 - 12:00 671 MW

03-09-2026 12:00 - 13:00 671 MW

03-09-2026 13:00 - 14:00 671 MW

03-09-2026 14:00 - 15:00 671 MW

03-09-2026 15:00 - 16:00 671 MW

03-09-2026 16:00 - 17:00 671 MW

03-09-2026 20:00 - 21:00 671 MW

03-09-2026 21:00 - 22:00 671 MW

03-09-2026 22:00 - 23:00 671 MW

5. Amount of LTTR remaining after curtailment:

03-09-2026 11:00 - 12:00 279 MW

03-09-2026 12:00 - 13:00 279 MW

03-09-2026 13:00 - 14:00 279 MW

03-09-2026 14:00 - 15:00 279 MW

03-09-2026 15:00 - 16:00 279 MW

03-09-2026 16:00 - 17:00 279 MW

03-09-2026 20:00 - 21:00 177 MW

03-09-2026 21:00 - 22:00 79 MW

03-09-2026 22:00 - 23:00 555 MW

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

   03/09/2026

      11:00-12:00 Dambron - Verger

      12:00-13:00 Dambron - Verger

      13:00-14:00 Dambron - Verger

      14:00-15:00 Dambron - Verger

      15:00-16:00 Dambron - Verger

      16:00-17:00 Dambron - Verger

      20:00-21:00 marsillon-pragneres 1

      21:00-22:00 marsillon-pragneres 1

      22:00-23:00 marsillon-pragneres 1

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

   The available remedial actions were assessed as insufficient or ineffective to avoid the violation of operational security limits

Capacity Curtailment on the FR-CH border for delivery period 03-09-2026

by JAO

1. TSO(s)*:

RTE, SWISSGRID

2. Identification of affected Long Term Transmission Rights:

FR-CH

3. Triggering event:

Curtailment due to Curtailment to ensure operation remains within Operational Security Limits

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

03-09-2026 00:00 - 01:00 370 MW

03-09-2026 01:00 - 02:00 370 MW

03-09-2026 02:00 - 03:00 370 MW

03-09-2026 03:00 - 04:00 370 MW

03-09-2026 04:00 - 05:00 370 MW

03-09-2026 05:00 - 06:00 370 MW

03-09-2026 06:00 - 07:00 370 MW

03-09-2026 07:00 - 08:00 370 MW

03-09-2026 08:00 - 09:00 370 MW

03-09-2026 09:00 - 10:00 370 MW

03-09-2026 10:00 - 11:00 370 MW

03-09-2026 11:00 - 12:00 370 MW

03-09-2026 12:00 - 13:00 370 MW

03-09-2026 13:00 - 14:00 370 MW

03-09-2026 14:00 - 15:00 370 MW

03-09-2026 15:00 - 16:00 370 MW

03-09-2026 16:00 - 17:00 370 MW

03-09-2026 17:00 - 18:00 370 MW

03-09-2026 18:00 - 19:00 370 MW

03-09-2026 19:00 - 20:00 370 MW

03-09-2026 20:00 - 21:00 370 MW

03-09-2026 21:00 - 22:00 370 MW

03-09-2026 22:00 - 23:00 370 MW

03-09-2026 23:00 - 24:00 370 MW

5. Amount of LTTR remaining after curtailment:

03-09-2026 00:00 - 01:00 0 MW

03-09-2026 01:00 - 02:00 0 MW

03-09-2026 02:00 - 03:00 0 MW

03-09-2026 03:00 - 04:00 0 MW

03-09-2026 04:00 - 05:00 0 MW

03-09-2026 05:00 - 06:00 0 MW

03-09-2026 06:00 - 07:00 0 MW

03-09-2026 07:00 - 08:00 0 MW

03-09-2026 08:00 - 09:00 0 MW

03-09-2026 09:00 - 10:00 0 MW

03-09-2026 10:00 - 11:00 0 MW

03-09-2026 11:00 - 12:00 0 MW

03-09-2026 12:00 - 13:00 0 MW

03-09-2026 13:00 - 14:00 0 MW

03-09-2026 14:00 - 15:00 0 MW

03-09-2026 15:00 - 16:00 0 MW

03-09-2026 16:00 - 17:00 0 MW

03-09-2026 17:00 - 18:00 0 MW

03-09-2026 18:00 - 19:00 0 MW

03-09-2026 19:00 - 20:00 0 MW

03-09-2026 20:00 - 21:00 0 MW

03-09-2026 21:00 - 22:00 0 MW

03-09-2026 22:00 - 23:00 0 MW

03-09-2026 23:00 - 24:00 0 MW

Capacity Curtailment on the IF1-GB-FR border for delivery period 15-09-2026

by JAO

1. TSO(s)*:

RNP

2. Identification of affected Long Term Transmission Rights:

IF1-GB-FR

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

15-09-2026 00:00 - 01:00 900 MW

15-09-2026 01:00 - 02:00 900 MW

15-09-2026 02:00 - 03:00 900 MW

15-09-2026 03:00 - 04:00 900 MW

15-09-2026 04:00 - 05:00 900 MW

15-09-2026 05:00 - 06:00 900 MW

15-09-2026 06:00 - 07:00 900 MW

15-09-2026 07:00 - 08:00 900 MW

15-09-2026 08:00 - 09:00 900 MW

15-09-2026 09:00 - 10:00 900 MW

15-09-2026 10:00 - 11:00 900 MW

15-09-2026 11:00 - 12:00 900 MW

15-09-2026 12:00 - 13:00 900 MW

15-09-2026 13:00 - 14:00 900 MW

15-09-2026 14:00 - 15:00 900 MW

15-09-2026 15:00 - 16:00 900 MW

15-09-2026 16:00 - 17:00 900 MW

15-09-2026 17:00 - 18:00 900 MW

15-09-2026 18:00 - 19:00 900 MW

15-09-2026 19:00 - 20:00 900 MW

15-09-2026 20:00 - 21:00 900 MW

15-09-2026 21:00 - 22:00 900 MW

15-09-2026 22:00 - 23:00 900 MW

15-09-2026 23:00 - 24:00 900 MW

5. Amount of LTTR remaining after curtailment:

15-09-2026 00:00 - 01:00 0 MW

15-09-2026 01:00 - 02:00 0 MW

15-09-2026 02:00 - 03:00 0 MW

15-09-2026 03:00 - 04:00 0 MW

15-09-2026 04:00 - 05:00 0 MW

15-09-2026 05:00 - 06:00 0 MW

15-09-2026 06:00 - 07:00 0 MW

15-09-2026 07:00 - 08:00 0 MW

15-09-2026 08:00 - 09:00 0 MW

15-09-2026 09:00 - 10:00 0 MW

15-09-2026 10:00 - 11:00 0 MW

15-09-2026 11:00 - 12:00 0 MW

15-09-2026 12:00 - 13:00 0 MW

15-09-2026 13:00 - 14:00 0 MW

15-09-2026 14:00 - 15:00 0 MW

15-09-2026 15:00 - 16:00 0 MW

15-09-2026 16:00 - 17:00 0 MW

15-09-2026 17:00 - 18:00 0 MW

15-09-2026 18:00 - 19:00 0 MW

15-09-2026 19:00 - 20:00 0 MW

15-09-2026 20:00 - 21:00 0 MW

15-09-2026 21:00 - 22:00 0 MW

15-09-2026 22:00 - 23:00 0 MW

15-09-2026 23:00 - 24:00 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 unplanned maintenance

Capacity Curtailment on the DK-NL border for delivery period 03-09-2026

by JAO

1. TSO(s)*:

TenneT_NL

2. Identification of affected Long Term Transmission Rights:

DK-NL

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

03-09-2026 00:00 - 01:00 199 MW

03-09-2026 01:00 - 02:00 199 MW

03-09-2026 02:00 - 03:00 199 MW

03-09-2026 03:00 - 04:00 199 MW

03-09-2026 04:00 - 05:00 199 MW

03-09-2026 05:00 - 06:00 199 MW

03-09-2026 06:00 - 07:00 199 MW

03-09-2026 07:00 - 08:00 199 MW

03-09-2026 08:00 - 09:00 199 MW

03-09-2026 09:00 - 10:00 199 MW

03-09-2026 10:00 - 11:00 199 MW

03-09-2026 11:00 - 12:00 199 MW

03-09-2026 12:00 - 13:00 199 MW

03-09-2026 13:00 - 14:00 199 MW

03-09-2026 14:00 - 15:00 199 MW

03-09-2026 15:00 - 16:00 199 MW

03-09-2026 16:00 - 17:00 199 MW

03-09-2026 17:00 - 18:00 199 MW

03-09-2026 18:00 - 19:00 199 MW

03-09-2026 19:00 - 20:00 199 MW

03-09-2026 20:00 - 21:00 199 MW

03-09-2026 21:00 - 22:00 199 MW

03-09-2026 22:00 - 23:00 199 MW

03-09-2026 23:00 - 24:00 199 MW

5. Amount of LTTR remaining after curtailment:

03-09-2026 00:00 - 01:00 0 MW

03-09-2026 01:00 - 02:00 0 MW

03-09-2026 02:00 - 03:00 0 MW

03-09-2026 03:00 - 04:00 0 MW

03-09-2026 04:00 - 05:00 0 MW

03-09-2026 05:00 - 06:00 0 MW

03-09-2026 06:00 - 07:00 0 MW

03-09-2026 07:00 - 08:00 0 MW

03-09-2026 08:00 - 09:00 0 MW

03-09-2026 09:00 - 10:00 0 MW

03-09-2026 10:00 - 11:00 0 MW

03-09-2026 11:00 - 12:00 0 MW

03-09-2026 12:00 - 13:00 0 MW

03-09-2026 13:00 - 14:00 0 MW

03-09-2026 14:00 - 15:00 0 MW

03-09-2026 15:00 - 16:00 0 MW

03-09-2026 16:00 - 17:00 0 MW

03-09-2026 17:00 - 18:00 0 MW

03-09-2026 18:00 - 19:00 0 MW

03-09-2026 19:00 - 20:00 0 MW

03-09-2026 20:00 - 21:00 0 MW

03-09-2026 21:00 - 22:00 0 MW

03-09-2026 22:00 - 23:00 0 MW

03-09-2026 23:00 - 24:00 0 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)*?

The remedial actions considered were assessed as not sufficient or ineffective to avoid the expected violation of operational security limit(s).

SDAC_JAO_01: SDAC market coupling 01/09 - Session complete

by JAO

Please be informed that the day-ahead market coupling session is now completed.

Our certifications

JAO has successfully implemented internationally recognized management systems and is now officially certified for ISO/IEC 27001:2022 – the global standard for Information Security Management Systems and for ISO 9001 – the international standard for Quality Management Systems. 

ISO
IT

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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