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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 08-11-2026

by JAO

1. TSO(s)*:

RTE-TSO

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:

08-11-2026 00:00 - 01:00 370 MW

08-11-2026 01:00 - 02:00 370 MW

08-11-2026 02:00 - 03:00 370 MW

08-11-2026 03:00 - 04:00 370 MW

08-11-2026 04:00 - 05:00 370 MW

08-11-2026 05:00 - 06:00 370 MW

08-11-2026 06:00 - 07:00 370 MW

08-11-2026 07:00 - 08:00 370 MW

08-11-2026 08:00 - 09:00 370 MW

08-11-2026 09:00 - 10:00 370 MW

08-11-2026 10:00 - 11:00 370 MW

08-11-2026 11:00 - 12:00 370 MW

08-11-2026 12:00 - 13:00 370 MW

08-11-2026 13:00 - 14:00 370 MW

08-11-2026 14:00 - 15:00 370 MW

08-11-2026 15:00 - 16:00 370 MW

08-11-2026 16:00 - 17:00 370 MW

08-11-2026 17:00 - 18:00 370 MW

08-11-2026 18:00 - 19:00 370 MW

08-11-2026 19:00 - 20:00 370 MW

08-11-2026 20:00 - 21:00 370 MW

08-11-2026 21:00 - 22:00 370 MW

08-11-2026 22:00 - 23:00 370 MW

08-11-2026 23:00 - 24:00 370 MW

5. Amount of LTTR remaining after curtailment:

08-11-2026 00:00 - 01:00 0 MW

08-11-2026 01:00 - 02:00 0 MW

08-11-2026 02:00 - 03:00 0 MW

08-11-2026 03:00 - 04:00 0 MW

08-11-2026 04:00 - 05:00 0 MW

08-11-2026 05:00 - 06:00 0 MW

08-11-2026 06:00 - 07:00 0 MW

08-11-2026 07:00 - 08:00 0 MW

08-11-2026 08:00 - 09:00 0 MW

08-11-2026 09:00 - 10:00 0 MW

08-11-2026 10:00 - 11:00 0 MW

08-11-2026 11:00 - 12:00 0 MW

08-11-2026 12:00 - 13:00 0 MW

08-11-2026 13:00 - 14:00 0 MW

08-11-2026 14:00 - 15:00 0 MW

08-11-2026 15:00 - 16:00 0 MW

08-11-2026 16:00 - 17:00 0 MW

08-11-2026 17:00 - 18:00 0 MW

08-11-2026 18:00 - 19:00 0 MW

08-11-2026 19:00 - 20:00 0 MW

08-11-2026 20:00 - 21:00 0 MW

08-11-2026 21:00 - 22:00 0 MW

08-11-2026 22:00 - 23:00 0 MW

08-11-2026 23:00 - 24:00 0 MW

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

   08/11/2026

      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

PuTo Nordic Unavailable

by JAO

Please be informed that PuTo Nordic will be unavailable until further notice.

2027 Auction Calendar

by JAO

Dear Market Participants,

We are happy to share with you the final version of the 2027 Auction Calendar for Yearly, Seasonal, Quarterly and Monthly Auctions.

For more details, please find 2027 Auction Calendar attached here and, on our webpage, (http://www.jao.eu/auctions#/calendar/table ) in the bottom right corner under “Legacy Version XLS”

Best regards,

JAO Operations Team

Update: Default Bid Issue

by JAO

Please note that the issue affecting the default bids has been identified as impacting the IFA and EL1 borders only.

For participants active on these borders, we recommend reviewing the content of their default bids.

Regular bidding can be used during the bidding gate to overwrite the existing default bid.

Our teams continue to investigate the issue and work on a permanent fix.

We will inform Market Participants as soon as the correction has been deployed.

Thank you for your cooperation and understanding.

Kind regards,

JAO Operations

Delay in the publication of Publication Tool data 07/11

by JAO

Please be informed that there is a delay in the publication of data on PUTO for BD 07/11

The relevant data will be published as soon as possible.

We apologies for any inconvenience this may cause and appreciate your understanding

SDAC_JAO_01: SDAC market coupling - Session complete

by JAO

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

[SDAC_ExC_02a]: Delay in Preliminary Market Coupling Results publication

by JAO

Please be aware that the publication of the preliminary SDAC Market Coupling Results is delayed until further notice.

The Market Coupling Results will be published as soon as they are available.

If needed, another delay message will be sent out.

Further information can be found in the Fallback Manual that is published on the websites:

NEMO Committee

ENTSO-E



Therefore, if relevant, we advise you to update your shadow bids at JAO eCAT platform before 14:10.

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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Frequently asked questions

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

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