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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 AT-IT border for delivery period 10-09-2026

by JAO

1. TSO(s)*:

APG

2. Identification of affected Long Term Transmission Rights:

AT-IT

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

10-09-2026 07:00 - 08:00 70 MW

10-09-2026 08:00 - 09:00 70 MW

10-09-2026 09:00 - 10:00 70 MW

10-09-2026 10:00 - 11:00 70 MW

10-09-2026 11:00 - 12:00 70 MW

10-09-2026 12:00 - 13:00 70 MW

10-09-2026 13:00 - 14:00 70 MW

10-09-2026 14:00 - 15:00 70 MW

10-09-2026 15:00 - 16:00 70 MW

10-09-2026 16:00 - 17:00 70 MW

10-09-2026 17:00 - 18:00 70 MW

5. Amount of LTTR remaining after curtailment:

10-09-2026 07:00 - 08:00 55 MW

10-09-2026 08:00 - 09:00 55 MW

10-09-2026 09:00 - 10:00 55 MW

10-09-2026 10:00 - 11:00 55 MW

10-09-2026 11:00 - 12:00 55 MW

10-09-2026 12:00 - 13:00 55 MW

10-09-2026 13:00 - 14:00 55 MW

10-09-2026 14:00 - 15:00 55 MW

10-09-2026 15:00 - 16:00 55 MW

10-09-2026 16:00 - 17:00 55 MW

10-09-2026 17:00 - 18:00 55 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.

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

Capacity Curtailment on the IF1-GB-FR border for delivery period 22-09-2026

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:

22-09-2026 00:00 - 01:00 900 MW

22-09-2026 01:00 - 02:00 900 MW

22-09-2026 02:00 - 03:00 900 MW

22-09-2026 03:00 - 04:00 900 MW

22-09-2026 04:00 - 05:00 900 MW

22-09-2026 05:00 - 06:00 900 MW

22-09-2026 06:00 - 07:00 900 MW

22-09-2026 07:00 - 08:00 900 MW

22-09-2026 08:00 - 09:00 900 MW

22-09-2026 09:00 - 10:00 900 MW

22-09-2026 10:00 - 11:00 900 MW

22-09-2026 11:00 - 12:00 900 MW

22-09-2026 12:00 - 13:00 900 MW

22-09-2026 13:00 - 14:00 900 MW

22-09-2026 14:00 - 15:00 900 MW

22-09-2026 15:00 - 16:00 900 MW

22-09-2026 16:00 - 17:00 900 MW

22-09-2026 17:00 - 18:00 900 MW

22-09-2026 18:00 - 19:00 900 MW

22-09-2026 19:00 - 20:00 900 MW

22-09-2026 20:00 - 21:00 900 MW

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

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

22-09-2026 23:00 - 24:00 900 MW

5. Amount of LTTR remaining after curtailment:

22-09-2026 00:00 - 01:00 0 MW

22-09-2026 01:00 - 02:00 0 MW

22-09-2026 02:00 - 03:00 0 MW

22-09-2026 03:00 - 04:00 0 MW

22-09-2026 04:00 - 05:00 0 MW

22-09-2026 05:00 - 06:00 0 MW

22-09-2026 06:00 - 07:00 0 MW

22-09-2026 07:00 - 08:00 0 MW

22-09-2026 08:00 - 09:00 0 MW

22-09-2026 09:00 - 10:00 0 MW

22-09-2026 10:00 - 11:00 0 MW

22-09-2026 11:00 - 12:00 0 MW

22-09-2026 12:00 - 13:00 0 MW

22-09-2026 13:00 - 14:00 0 MW

22-09-2026 14:00 - 15:00 0 MW

22-09-2026 15:00 - 16:00 0 MW

22-09-2026 16:00 - 17:00 0 MW

22-09-2026 17:00 - 18:00 0 MW

22-09-2026 18:00 - 19:00 0 MW

22-09-2026 19:00 - 20:00 0 MW

22-09-2026 20:00 - 21:00 0 MW

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

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

22-09-2026 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 IT-GR border for delivery period 10-09-2026

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:

10-09-2026 19:00 - 20:00 500 MW

10-09-2026 20:00 - 21:00 500 MW

5. Amount of LTTR remaining after curtailment:

10-09-2026 19:00 - 20:00 0 MW

10-09-2026 20:00 - 21:00 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.

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

Availability of Rights Documents and Allocation: Resolved

by JAO

Please be informed that the Rights Documents and Allocation Results technical issue has now been resolved

Thank you for your understanding

Temporary Unavailability of Auction Data - RESOLVED

by JAO

Please be informed the Auction data page on JAO website is available now.

Temporary Unavailability of Auction Data

by JAO

Please be informed that auction data on our website is currently temporarily unavailable due to technical reasons.

We are working to restore the service as soon as possible and will keep you informed of any developments.
Further information will be shared as soon as it becomes available.

We apologize for any inconvenience this may cause and thank you for your understanding.

Availability of Rights Documents and Allocation Results

by JAO

Please be informed that the Rights documents and allocation results are temporally 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.

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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Frequently asked questions

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

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