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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 29-06-2026

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:

29-06-2026 00:00 - 01:00 540 MW

29-06-2026 01:00 - 02:00 540 MW

29-06-2026 02:00 - 03:00 540 MW

29-06-2026 03:00 - 04:00 540 MW

29-06-2026 04:00 - 05:00 540 MW

29-06-2026 05:00 - 06:00 540 MW

29-06-2026 06:00 - 07:00 540 MW

29-06-2026 07:00 - 08:00 540 MW

29-06-2026 08:00 - 09:00 540 MW

29-06-2026 09:00 - 10:00 540 MW

29-06-2026 10:00 - 11:00 540 MW

29-06-2026 11:00 - 12:00 540 MW

29-06-2026 12:00 - 13:00 540 MW

29-06-2026 13:00 - 14:00 540 MW

29-06-2026 14:00 - 15:00 540 MW

29-06-2026 15:00 - 16:00 540 MW

29-06-2026 16:00 - 17:00 540 MW

29-06-2026 17:00 - 18:00 540 MW

29-06-2026 18:00 - 19:00 540 MW

29-06-2026 19:00 - 20:00 540 MW

29-06-2026 20:00 - 21:00 540 MW

29-06-2026 21:00 - 22:00 540 MW

29-06-2026 22:00 - 23:00 540 MW

29-06-2026 23:00 - 24:00 540 MW

5. Amount of LTTR remaining after curtailment:

29-06-2026 00:00 - 01:00 352 MW

29-06-2026 01:00 - 02:00 352 MW

29-06-2026 02:00 - 03:00 352 MW

29-06-2026 03:00 - 04:00 352 MW

29-06-2026 04:00 - 05:00 352 MW

29-06-2026 05:00 - 06:00 352 MW

29-06-2026 06:00 - 07:00 352 MW

29-06-2026 07:00 - 08:00 352 MW

29-06-2026 08:00 - 09:00 352 MW

29-06-2026 09:00 - 10:00 352 MW

29-06-2026 10:00 - 11:00 352 MW

29-06-2026 11:00 - 12:00 352 MW

29-06-2026 12:00 - 13:00 352 MW

29-06-2026 13:00 - 14:00 352 MW

29-06-2026 14:00 - 15:00 352 MW

29-06-2026 15:00 - 16:00 352 MW

29-06-2026 16:00 - 17:00 352 MW

29-06-2026 17:00 - 18:00 352 MW

29-06-2026 18:00 - 19:00 352 MW

29-06-2026 19:00 - 20:00 352 MW

29-06-2026 20:00 - 21:00 352 MW

29-06-2026 21:00 - 22:00 352 MW

29-06-2026 22:00 - 23:00 352 MW

29-06-2026 23:00 - 24:00 352 MW

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

   29/06/2026

      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

Credit limit check disabled for all auctions until further notice

by JAO

Please note that the Credit Limit check had to be disabled for all Daily and Intraday Auctions until further notice.

Thank you for your understanding.

Kind regards,

JAO Operations

Urgent Notice – Incorrect CH-DE Daily Auction Min/Max Files

by JAO

Please be advised that, due to a technical issue, the MIN/MAX files for the CH<>DE daily auction (in both directions) will be generated incorrectly.

Our team is actively working to resolve the issue, and we expect a permanent fix to be in place by early next week. In the meantime, the files will be generated using a backup process.

Please disregard the first version of the MIN/MAX files until further notice.

In addition, please be informed that any parties requiring access to the MIN/MAX files for the CH<>DE border for business day 27/06/2026 are kindly requested to submit a ticket via our Support Hub. The requested files will be provided upon request.

We apologize for any inconvenience this may cause and appreciate your patience and understanding.

Capacity Curtailment on the BE-DE border for delivery period 28-06-2026

by JAO

1. TSO(s)*:

ELIA

2. Identification of affected Long Term Transmission Rights:

BE-DE

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

28-06-2026 00:00 - 01:00 400 MW

28-06-2026 01:00 - 02:00 400 MW

28-06-2026 02:00 - 03:00 400 MW

28-06-2026 03:00 - 04:00 400 MW

28-06-2026 04:00 - 05:00 400 MW

28-06-2026 05:00 - 06:00 400 MW

28-06-2026 06:00 - 07:00 400 MW

28-06-2026 07:00 - 08:00 400 MW

28-06-2026 08:00 - 09:00 400 MW

28-06-2026 09:00 - 10:00 400 MW

28-06-2026 10:00 - 11:00 400 MW

28-06-2026 11:00 - 12:00 400 MW

28-06-2026 12:00 - 13:00 400 MW

28-06-2026 13:00 - 14:00 400 MW

28-06-2026 14:00 - 15:00 400 MW

28-06-2026 15:00 - 16:00 400 MW

28-06-2026 16:00 - 17:00 400 MW

28-06-2026 17:00 - 18:00 400 MW

28-06-2026 18:00 - 19:00 400 MW

28-06-2026 19:00 - 20:00 400 MW

28-06-2026 20:00 - 21:00 400 MW

28-06-2026 21:00 - 22:00 400 MW

28-06-2026 22:00 - 23:00 400 MW

28-06-2026 23:00 - 24:00 400 MW

5. Amount of LTTR remaining after curtailment:

28-06-2026 00:00 - 01:00 0 MW

28-06-2026 01:00 - 02:00 0 MW

28-06-2026 02:00 - 03:00 0 MW

28-06-2026 03:00 - 04:00 0 MW

28-06-2026 04:00 - 05:00 0 MW

28-06-2026 05:00 - 06:00 0 MW

28-06-2026 06:00 - 07:00 0 MW

28-06-2026 07:00 - 08:00 0 MW

28-06-2026 08:00 - 09:00 0 MW

28-06-2026 09:00 - 10:00 0 MW

28-06-2026 10:00 - 11:00 0 MW

28-06-2026 11:00 - 12:00 0 MW

28-06-2026 12:00 - 13:00 0 MW

28-06-2026 13:00 - 14:00 0 MW

28-06-2026 14:00 - 15:00 0 MW

28-06-2026 15:00 - 16:00 0 MW

28-06-2026 16:00 - 17:00 0 MW

28-06-2026 17:00 - 18:00 0 MW

28-06-2026 18:00 - 19:00 0 MW

28-06-2026 19:00 - 20:00 0 MW

28-06-2026 20:00 - 21:00 0 MW

28-06-2026 21:00 - 22:00 0 MW

28-06-2026 22:00 - 23:00 0 MW

28-06-2026 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)*?

Reason for this curtailment is a forced outage on the ALEGrO DC interconnector which is the only tie-line between Belgian and German bidding zones.

Capacity Curtailment on the DE-BE border for delivery period 28-06-2026

by JAO

1. TSO(s)*:

ELIA

2. Identification of affected Long Term Transmission Rights:

DE-BE

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

28-06-2026 00:00 - 01:00 400 MW

28-06-2026 01:00 - 02:00 400 MW

28-06-2026 02:00 - 03:00 400 MW

28-06-2026 03:00 - 04:00 400 MW

28-06-2026 04:00 - 05:00 400 MW

28-06-2026 05:00 - 06:00 400 MW

28-06-2026 06:00 - 07:00 400 MW

28-06-2026 07:00 - 08:00 400 MW

28-06-2026 08:00 - 09:00 400 MW

28-06-2026 09:00 - 10:00 400 MW

28-06-2026 10:00 - 11:00 400 MW

28-06-2026 11:00 - 12:00 400 MW

28-06-2026 12:00 - 13:00 400 MW

28-06-2026 13:00 - 14:00 400 MW

28-06-2026 14:00 - 15:00 400 MW

28-06-2026 15:00 - 16:00 400 MW

28-06-2026 16:00 - 17:00 400 MW

28-06-2026 17:00 - 18:00 400 MW

28-06-2026 18:00 - 19:00 400 MW

28-06-2026 19:00 - 20:00 400 MW

28-06-2026 20:00 - 21:00 400 MW

28-06-2026 21:00 - 22:00 400 MW

28-06-2026 22:00 - 23:00 400 MW

28-06-2026 23:00 - 24:00 400 MW

5. Amount of LTTR remaining after curtailment:

28-06-2026 00:00 - 01:00 0 MW

28-06-2026 01:00 - 02:00 0 MW

28-06-2026 02:00 - 03:00 0 MW

28-06-2026 03:00 - 04:00 0 MW

28-06-2026 04:00 - 05:00 0 MW

28-06-2026 05:00 - 06:00 0 MW

28-06-2026 06:00 - 07:00 0 MW

28-06-2026 07:00 - 08:00 0 MW

28-06-2026 08:00 - 09:00 0 MW

28-06-2026 09:00 - 10:00 0 MW

28-06-2026 10:00 - 11:00 0 MW

28-06-2026 11:00 - 12:00 0 MW

28-06-2026 12:00 - 13:00 0 MW

28-06-2026 13:00 - 14:00 0 MW

28-06-2026 14:00 - 15:00 0 MW

28-06-2026 15:00 - 16:00 0 MW

28-06-2026 16:00 - 17:00 0 MW

28-06-2026 17:00 - 18:00 0 MW

28-06-2026 18:00 - 19:00 0 MW

28-06-2026 19:00 - 20:00 0 MW

28-06-2026 20:00 - 21:00 0 MW

28-06-2026 21:00 - 22:00 0 MW

28-06-2026 22:00 - 23:00 0 MW

28-06-2026 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)*?

Reason for this curtailment is a forced outage on the ALEGrO DC interconnector which is the only tie-line between Belgian and German bidding zones.

Capacity Curtailment on the SI-AT border for delivery period 28-06-2026

by JAO

1. TSO(s)*:

APG

2. Identification of affected Long Term Transmission Rights:

SI-AT

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

28-06-2026 09:00 - 10:00 370 MW

28-06-2026 10:00 - 11:00 370 MW

28-06-2026 11:00 - 12:00 370 MW

5. Amount of LTTR remaining after curtailment:

28-06-2026 09:00 - 10:00 179 MW

28-06-2026 10:00 - 11:00 221 MW

28-06-2026 11:00 - 12:00 230 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 28-06-2026

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:

28-06-2026 09:00 - 10:00 350 MW

28-06-2026 10:00 - 11:00 350 MW

28-06-2026 11:00 - 12:00 350 MW

5. Amount of LTTR remaining after curtailment:

28-06-2026 09:00 - 10:00 89 MW

28-06-2026 10:00 - 11:00 173 MW

28-06-2026 11:00 - 12:00 185 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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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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