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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.

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

Latest market messages

Capacity Curtailment on the FR-CH border for delivery period 30-06-2026

by JAO

1. TSO(s)*:

RTE

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:

30-06-2026 00:00 - 01:00 540 MW

30-06-2026 01:00 - 02:00 540 MW

30-06-2026 02:00 - 03:00 540 MW

30-06-2026 03:00 - 04:00 540 MW

30-06-2026 04:00 - 05:00 540 MW

30-06-2026 05:00 - 06:00 540 MW

30-06-2026 06:00 - 07:00 540 MW

30-06-2026 07:00 - 08:00 540 MW

30-06-2026 08:00 - 09:00 540 MW

30-06-2026 09:00 - 10:00 540 MW

30-06-2026 10:00 - 11:00 540 MW

30-06-2026 11:00 - 12:00 540 MW

30-06-2026 12:00 - 13:00 540 MW

30-06-2026 13:00 - 14:00 540 MW

30-06-2026 14:00 - 15:00 540 MW

30-06-2026 15:00 - 16:00 540 MW

30-06-2026 16:00 - 17:00 540 MW

30-06-2026 17:00 - 18:00 540 MW

30-06-2026 18:00 - 19:00 540 MW

30-06-2026 19:00 - 20:00 540 MW

30-06-2026 20:00 - 21:00 540 MW

30-06-2026 21:00 - 22:00 540 MW

30-06-2026 22:00 - 23:00 540 MW

30-06-2026 23:00 - 24:00 540 MW

5. Amount of LTTR remaining after curtailment:

30-06-2026 00:00 - 01:00 352 MW

30-06-2026 01:00 - 02:00 352 MW

30-06-2026 02:00 - 03:00 352 MW

30-06-2026 03:00 - 04:00 352 MW

30-06-2026 04:00 - 05:00 352 MW

30-06-2026 05:00 - 06:00 352 MW

30-06-2026 06:00 - 07:00 352 MW

30-06-2026 07:00 - 08:00 352 MW

30-06-2026 08:00 - 09:00 352 MW

30-06-2026 09:00 - 10:00 352 MW

30-06-2026 10:00 - 11:00 352 MW

30-06-2026 11:00 - 12:00 352 MW

30-06-2026 12:00 - 13:00 352 MW

30-06-2026 13:00 - 14:00 352 MW

30-06-2026 14:00 - 15:00 352 MW

30-06-2026 15:00 - 16:00 352 MW

30-06-2026 16:00 - 17:00 352 MW

30-06-2026 17:00 - 18:00 352 MW

30-06-2026 18:00 - 19:00 352 MW

30-06-2026 19:00 - 20:00 352 MW

30-06-2026 20:00 - 21:00 352 MW

30-06-2026 21:00 - 22:00 352 MW

30-06-2026 22:00 - 23:00 352 MW

30-06-2026 23:00 - 24:00 352 MW

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

   30/06/2026

      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 EE-LV border for delivery period 29-06-2026

by JAO

1. TSO(s)*:

AST

2. Identification of affected Long Term Transmission Rights:

EE-LV

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

29-06-2026 08:00 - 09:00 416 MW

29-06-2026 09:00 - 10:00 416 MW

29-06-2026 10:00 - 11:00 416 MW

29-06-2026 11:00 - 12:00 416 MW

29-06-2026 12:00 - 13:00 416 MW

29-06-2026 13:00 - 14:00 416 MW

29-06-2026 14:00 - 15:00 416 MW

29-06-2026 15:00 - 16:00 416 MW

29-06-2026 16:00 - 17:00 416 MW

5. Amount of LTTR remaining after curtailment:

29-06-2026 08:00 - 09:00 381 MW

29-06-2026 09:00 - 10:00 378 MW

29-06-2026 10:00 - 11:00 377 MW

29-06-2026 11:00 - 12:00 377 MW

29-06-2026 12:00 - 13:00 377 MW

29-06-2026 13:00 - 14:00 377 MW

29-06-2026 14:00 - 15:00 378 MW

29-06-2026 15:00 - 16:00 378 MW

29-06-2026 16:00 - 17:00 381 MW

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

Nord Pool - UMM Platform, as well as the capacity already allocated on the Baltic Balancing Market for balancing capacity sharing athttps://baltic.transparency-dashboard.eu/node/108

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

There is no alternative to the curtailment of the affected LTTRs.

Urgent Market Update: Cancellation of RS-MK-D-DAILYPRODU-260629-01 for Market Period 29/06/2026

by JAO

As per TSO request, the RS-MK Daily Auction for market period 29/06/2026 with the auction ID RS-MK-D-DAILYPRODU-260629-01has been cancelled.

Capacity Curtailment on the IT-FR border for delivery period 29-06-2026

by JAO

1. TSO(s)*:

TERNA

2. Identification of affected Long Term Transmission Rights:

IT-FR

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

29-06-2026 17:00 - 18:00 1369 MW

29-06-2026 18:00 - 19:00 1369 MW

29-06-2026 19:00 - 20:00 1369 MW

29-06-2026 20:00 - 21:00 1369 MW

29-06-2026 21:00 - 22:00 1369 MW

29-06-2026 22:00 - 23:00 1369 MW

5. Amount of LTTR remaining after curtailment:

29-06-2026 17:00 - 18:00 897 MW

29-06-2026 18:00 - 19:00 237 MW

29-06-2026 19:00 - 20:00 0 MW

29-06-2026 20:00 - 21:00 0 MW

29-06-2026 21:00 - 22:00 0 MW

29-06-2026 22:00 - 23:00 671 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 CCC1. TSO(s).

Capacity Curtailment on the IT-SI border for delivery period 29-06-2026

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:

29-06-2026 17:00 - 18:00 315 MW

29-06-2026 18:00 - 19:00 315 MW

29-06-2026 19:00 - 20:00 315 MW

29-06-2026 20:00 - 21:00 315 MW

29-06-2026 21:00 - 22:00 315 MW

29-06-2026 22:00 - 23:00 315 MW

5. Amount of LTTR remaining after curtailment:

29-06-2026 17:00 - 18:00 284 MW

29-06-2026 18:00 - 19:00 0 MW

29-06-2026 19:00 - 20:00 0 MW

29-06-2026 20:00 - 21:00 0 MW

29-06-2026 21:00 - 22:00 0 MW

29-06-2026 22:00 - 23:00 212 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 CCC1. TSO(s).

Capacity Curtailment on the IT-CH border for delivery period 29-06-2026

by JAO

1. TSO(s)*:

TERNA

2. Identification of affected Long Term Transmission Rights:

IT-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:

29-06-2026 18:00 - 19:00 720 MW

29-06-2026 19:00 - 20:00 720 MW

29-06-2026 20:00 - 21:00 720 MW

29-06-2026 21:00 - 22:00 720 MW

29-06-2026 22:00 - 23:00 720 MW

5. Amount of LTTR remaining after curtailment:

29-06-2026 18:00 - 19:00 195 MW

29-06-2026 19:00 - 20:00 0 MW

29-06-2026 20:00 - 21:00 0 MW

29-06-2026 21:00 - 22:00 0 MW

29-06-2026 22:00 - 23:00 519 MW

Capacity Curtailment on the IT-AT border for delivery period 29-06-2026

by JAO

1. TSO(s)*:

APG

2. Identification of affected Long Term Transmission Rights:

IT-AT

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

29-06-2026 17:00 - 18:00 75 MW

29-06-2026 18:00 - 19:00 75 MW

29-06-2026 19:00 - 20:00 75 MW

29-06-2026 20:00 - 21:00 75 MW

29-06-2026 21:00 - 22:00 75 MW

29-06-2026 22:00 - 23:00 75 MW

5. Amount of LTTR remaining after curtailment:

29-06-2026 17:00 - 18:00 55 MW

29-06-2026 18:00 - 19:00 12 MW

29-06-2026 19:00 - 20:00 2 MW

29-06-2026 20:00 - 21:00 2 MW

29-06-2026 21:00 - 22:00 2 MW

29-06-2026 22:00 - 23:00 49 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.

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. 

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

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