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Annual Report

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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.

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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

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Capacity Curtailment on the FR-CH border for delivery period 13-10-2026

by JAO

1. TSO(s)*:

RTE, SWISSGRID

2. Identification of affected Long Term Transmission Rights:

FR-CH

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

13-10-2026 00:00 - 01:00 370 MW

13-10-2026 01:00 - 02:00 370 MW

13-10-2026 02:00 - 03:00 370 MW

13-10-2026 03:00 - 04:00 370 MW

13-10-2026 04:00 - 05:00 370 MW

13-10-2026 05:00 - 06:00 370 MW

13-10-2026 06:00 - 07:00 370 MW

13-10-2026 07:00 - 08:00 370 MW

13-10-2026 08:00 - 09:00 370 MW

13-10-2026 09:00 - 10:00 370 MW

13-10-2026 10:00 - 11:00 370 MW

13-10-2026 11:00 - 12:00 370 MW

13-10-2026 12:00 - 13:00 370 MW

13-10-2026 13:00 - 14:00 370 MW

13-10-2026 14:00 - 15:00 370 MW

13-10-2026 15:00 - 16:00 370 MW

13-10-2026 16:00 - 17:00 370 MW

13-10-2026 17:00 - 18:00 370 MW

13-10-2026 18:00 - 19:00 370 MW

13-10-2026 19:00 - 20:00 370 MW

13-10-2026 20:00 - 21:00 370 MW

13-10-2026 21:00 - 22:00 370 MW

13-10-2026 22:00 - 23:00 370 MW

13-10-2026 23:00 - 24:00 370 MW

5. Amount of LTTR remaining after curtailment:

13-10-2026 00:00 - 01:00 0 MW

13-10-2026 01:00 - 02:00 0 MW

13-10-2026 02:00 - 03:00 0 MW

13-10-2026 03:00 - 04:00 0 MW

13-10-2026 04:00 - 05:00 0 MW

13-10-2026 05:00 - 06:00 0 MW

13-10-2026 06:00 - 07:00 0 MW

13-10-2026 07:00 - 08:00 0 MW

13-10-2026 08:00 - 09:00 0 MW

13-10-2026 09:00 - 10:00 0 MW

13-10-2026 10:00 - 11:00 0 MW

13-10-2026 11:00 - 12:00 0 MW

13-10-2026 12:00 - 13:00 0 MW

13-10-2026 13:00 - 14:00 0 MW

13-10-2026 14:00 - 15:00 0 MW

13-10-2026 15:00 - 16:00 0 MW

13-10-2026 16:00 - 17:00 0 MW

13-10-2026 17:00 - 18:00 0 MW

13-10-2026 18:00 - 19:00 0 MW

13-10-2026 19:00 - 20:00 0 MW

13-10-2026 20:00 - 21:00 0 MW

13-10-2026 21:00 - 22:00 0 MW

13-10-2026 22:00 - 23:00 0 MW

13-10-2026 23:00 - 24:00 0 MW

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

   13/10/2026

      00:00-01:00 Network Security

      01:00-02:00 Network Security

      02:00-03:00 Network Security

      03:00-04:00 Network Security

      04:00-05:00 Network Security

      05:00-06:00 Network Security

      06:00-07:00 Network Security

      07:00-08:00 Network Security

      08:00-09:00 Network Security

      09:00-10:00 Network Security

      10:00-11:00 Network Security

      11:00-12:00 Network Security

      12:00-13:00 Network Security

      13:00-14:00 Network Security

      14:00-15:00 Network Security

      15:00-16:00 Network Security

      16:00-17:00 Network Security

      17:00-18:00 Network Security

      18:00-19:00 Network Security

      19:00-20:00 Network Security

      20:00-21:00 Network Security

      21:00-22:00 Network Security

      22:00-23:00 Network Security

      23:00-24:00 Network Security

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 SI-IT border for delivery period 12-10-2026

by JAO

1. TSO(s)*:

TERNA

2. Identification of affected Long Term Transmission Rights:

SI-IT

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

12-10-2026 00:00 - 01:00 244 MW

12-10-2026 01:00 - 02:00 244 MW

12-10-2026 02:00 - 03:00 244 MW

12-10-2026 03:00 - 04:00 244 MW

12-10-2026 04:00 - 05:00 244 MW

12-10-2026 05:00 - 06:00 244 MW

12-10-2026 06:00 - 07:00 244 MW

12-10-2026 07:00 - 08:00 244 MW

12-10-2026 08:00 - 09:00 244 MW

12-10-2026 09:00 - 10:00 244 MW

12-10-2026 10:00 - 11:00 244 MW

12-10-2026 11:00 - 12:00 244 MW

12-10-2026 12:00 - 13:00 244 MW

12-10-2026 13:00 - 14:00 244 MW

12-10-2026 14:00 - 15:00 244 MW

12-10-2026 15:00 - 16:00 244 MW

12-10-2026 16:00 - 17:00 244 MW

12-10-2026 17:00 - 18:00 244 MW

12-10-2026 18:00 - 19:00 244 MW

12-10-2026 19:00 - 20:00 244 MW

12-10-2026 20:00 - 21:00 244 MW

12-10-2026 21:00 - 22:00 244 MW

12-10-2026 22:00 - 23:00 244 MW

12-10-2026 23:00 - 24:00 244 MW

5. Amount of LTTR remaining after curtailment:

12-10-2026 00:00 - 01:00 244 MW

12-10-2026 01:00 - 02:00 244 MW

12-10-2026 02:00 - 03:00 244 MW

12-10-2026 03:00 - 04:00 244 MW

12-10-2026 04:00 - 05:00 244 MW

12-10-2026 05:00 - 06:00 244 MW

12-10-2026 06:00 - 07:00 244 MW

12-10-2026 07:00 - 08:00 244 MW

12-10-2026 08:00 - 09:00 244 MW

12-10-2026 09:00 - 10:00 244 MW

12-10-2026 10:00 - 11:00 244 MW

12-10-2026 11:00 - 12:00 244 MW

12-10-2026 12:00 - 13:00 244 MW

12-10-2026 13:00 - 14:00 244 MW

12-10-2026 14:00 - 15:00 244 MW

12-10-2026 15:00 - 16:00 244 MW

12-10-2026 16:00 - 17:00 244 MW

12-10-2026 17:00 - 18:00 244 MW

12-10-2026 18:00 - 19:00 244 MW

12-10-2026 19:00 - 20:00 244 MW

12-10-2026 20:00 - 21:00 244 MW

12-10-2026 21:00 - 22:00 244 MW

12-10-2026 22:00 - 23:00 244 MW

12-10-2026 23:00 - 24:00 244 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 HU-AT border for delivery period 12-10-2026

by JAO

1. TSO(s)*:

APG

2. Identification of affected Long Term Transmission Rights:

HU-AT

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

12-10-2026 09:00 - 10:00 320 MW

12-10-2026 10:00 - 11:00 320 MW

12-10-2026 11:00 - 12:00 320 MW

12-10-2026 12:00 - 13:00 320 MW

12-10-2026 13:00 - 14:00 320 MW

12-10-2026 14:00 - 15:00 320 MW

5. Amount of LTTR remaining after curtailment:

12-10-2026 09:00 - 10:00 250 MW

12-10-2026 10:00 - 11:00 250 MW

12-10-2026 11:00 - 12:00 266 MW

12-10-2026 12:00 - 13:00 274 MW

12-10-2026 13:00 - 14:00 285 MW

12-10-2026 14:00 - 15:00 286 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 AT-CZ border for delivery period 12-10-2026

by JAO

1. TSO(s)*:

APG

2. Identification of affected Long Term Transmission Rights:

AT-CZ

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

12-10-2026 09:00 - 10:00 350 MW

12-10-2026 10:00 - 11:00 350 MW

12-10-2026 11:00 - 12:00 350 MW

12-10-2026 12:00 - 13:00 350 MW

12-10-2026 13:00 - 14:00 350 MW

12-10-2026 14:00 - 15:00 350 MW

5. Amount of LTTR remaining after curtailment:

12-10-2026 09:00 - 10:00 154 MW

12-10-2026 10:00 - 11:00 136 MW

12-10-2026 11:00 - 12:00 98 MW

12-10-2026 12:00 - 13:00 100 MW

12-10-2026 13:00 - 14:00 98 MW

12-10-2026 14:00 - 15:00 102 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 DE-AT border for delivery period 12-10-2026

by JAO

1. TSO(s)*:

APG

2. Identification of affected Long Term Transmission Rights:

DE-AT

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

12-10-2026 07:00 - 08:00 4820 MW

5. Amount of LTTR remaining after curtailment:

12-10-2026 07:00 - 08:00 4710 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 AT-DE border for delivery period 12-10-2026

by JAO

1. TSO(s)*:

APG

2. Identification of affected Long Term Transmission Rights:

AT-DE

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

12-10-2026 09:00 - 10:00 4419 MW

12-10-2026 10:00 - 11:00 4419 MW

12-10-2026 11:00 - 12:00 4419 MW

12-10-2026 12:00 - 13:00 4419 MW

12-10-2026 13:00 - 14:00 4419 MW

12-10-2026 14:00 - 15:00 4419 MW

5. Amount of LTTR remaining after curtailment:

12-10-2026 09:00 - 10:00 2099 MW

12-10-2026 10:00 - 11:00 2541 MW

12-10-2026 11:00 - 12:00 1526 MW

12-10-2026 12:00 - 13:00 1488 MW

12-10-2026 13:00 - 14:00 1523 MW

12-10-2026 14:00 - 15:00 1766 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 IT-SI border for delivery period 12-10-2026

by JAO

1. TSO(s)*:

TERNA

2. Identification of affected Long Term Transmission Rights:

IT-SI

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

12-10-2026 18:00 - 19:00 334 MW

12-10-2026 19:00 - 20:00 334 MW

12-10-2026 20:00 - 21:00 334 MW

5. Amount of LTTR remaining after curtailment:

12-10-2026 18:00 - 19:00 125 MW

12-10-2026 19:00 - 20:00 125 MW

12-10-2026 20:00 - 21:00 125 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
 

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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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. 

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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Check out the common questions and our answers on how to use the auction platform.

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