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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

2026 Auction Calendar update

by JAO

Dear Market Participants,

We would like to inform you that as per TSOs request, the 2026 Auction Calendar has been updated on the corridor EL1-FR-GB

For more details please refer to the Auction Calendar on our webpage http://www.jao.eu/auctions#/calendar/table to find its latest version.

Best regards,

JAO Operations Team

Urgent Market Update: Cancellation of HR-RS-D-DAILYPRODU-261020-03 and RS-HR-D-DAILYPRODU-261020-03 for Market Period 20/10/2026

by JAO

According to the border specific annex, the auctions results cannot be published after 10:00.

Therefore, the HR<>RS auction ID HR-RS-D-DAILYPRODU-261020-03 and RS- HR-D-DAILYPRODU-261020-03 have been cancelled.

Urgent Market Update: Cancellation of 2nd round of auction RS<>HR for Market Period 20/10/2026 and creation of 3rd round

by JAO

As per TSO request, the HR<>RS auctions with ID HR-RS-D-DAILYPRODU-261020-02 and RS-HR-D-DAILYPRODU-261020-02 have been cancelled.

Please note that the 3rd round of the daily auctions are created for the corridor RS<>HR with auction ID HR-RS-D-DAILYPRODU-261020-03 and RS-HR-D-DAILYPRODU-261020-03.

The bidding gates opening at 9:55 and closing at 10:10
The results will be published at 10:15

Urgent Market Update: Cancellation of HR<>RS-D-DAILYPRODU-261020-01 for Market Period 20/10/2026 and creation of 2nd round

by JAO

As per TSO request, the HR<>RS auctions with ID HR-RS-D-DAILYPRODU-261020-01 and RS-HR-D-DAILYPRODU-261020-01 have been cancelled.

 

Please note that the 2nd round of the daily auction for the corridor RS<>HR with auction ID
A second round will take place with the auction id HR-RS-D-DAILYPRODU-261020-02 and RS-HR-D-DAILYPRODU-261020-02 bidding gates opening at 9:50 and closing at 10:10


The results will be published at 10:15

Capacity Curtailment on the EL1-FR-GB border for delivery period 21-10-2026

by JAO

1. TSO(s)*:

ELECLINK

2. Identification of affected Long Term Transmission Rights:

EL1-FR-GB

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

21-10-2026 00:00 - 01:00 1013 MW

21-10-2026 01:00 - 02:00 1013 MW

21-10-2026 02:00 - 03:00 1013 MW

21-10-2026 03:00 - 04:00 1013 MW

21-10-2026 04:00 - 05:00 1013 MW

21-10-2026 05:00 - 06:00 1013 MW

21-10-2026 06:00 - 07:00 1013 MW

21-10-2026 07:00 - 08:00 1013 MW

21-10-2026 08:00 - 09:00 1013 MW

21-10-2026 09:00 - 10:00 1013 MW

21-10-2026 10:00 - 11:00 1013 MW

21-10-2026 11:00 - 12:00 1013 MW

21-10-2026 12:00 - 13:00 1013 MW

21-10-2026 13:00 - 14:00 1013 MW

21-10-2026 14:00 - 15:00 1013 MW

21-10-2026 15:00 - 16:00 1013 MW

21-10-2026 16:00 - 17:00 1013 MW

21-10-2026 17:00 - 18:00 1013 MW

21-10-2026 18:00 - 19:00 1013 MW

21-10-2026 19:00 - 20:00 1013 MW

21-10-2026 20:00 - 21:00 1013 MW

21-10-2026 21:00 - 22:00 1013 MW

21-10-2026 22:00 - 23:00 1013 MW

21-10-2026 23:00 - 24:00 1013 MW

5. Amount of LTTR remaining after curtailment:

21-10-2026 00:00 - 01:00 0 MW

21-10-2026 01:00 - 02:00 0 MW

21-10-2026 02:00 - 03:00 0 MW

21-10-2026 03:00 - 04:00 0 MW

21-10-2026 04:00 - 05:00 0 MW

21-10-2026 05:00 - 06:00 0 MW

21-10-2026 06:00 - 07:00 0 MW

21-10-2026 07:00 - 08:00 0 MW

21-10-2026 08:00 - 09:00 0 MW

21-10-2026 09:00 - 10:00 0 MW

21-10-2026 10:00 - 11:00 0 MW

21-10-2026 11:00 - 12:00 0 MW

21-10-2026 12:00 - 13:00 0 MW

21-10-2026 13:00 - 14:00 0 MW

21-10-2026 14:00 - 15:00 0 MW

21-10-2026 15:00 - 16:00 0 MW

21-10-2026 16:00 - 17:00 0 MW

21-10-2026 17:00 - 18:00 0 MW

21-10-2026 18:00 - 19:00 0 MW

21-10-2026 19:00 - 20:00 0 MW

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

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

21-10-2026 22:00 - 23:00 0 MW

21-10-2026 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*:

Planned Outage

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

Maintenance for an Planned Outage

Capacity Curtailment on the EL1-GB-FR border for delivery period 21-10-2026

by JAO

1. TSO(s)*:

ELECLINK

2. Identification of affected Long Term Transmission Rights:

EL1-GB-FR

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

21-10-2026 00:00 - 01:00 1011 MW

21-10-2026 01:00 - 02:00 1011 MW

21-10-2026 02:00 - 03:00 1011 MW

21-10-2026 03:00 - 04:00 1011 MW

21-10-2026 04:00 - 05:00 1011 MW

21-10-2026 05:00 - 06:00 1011 MW

21-10-2026 06:00 - 07:00 1011 MW

21-10-2026 07:00 - 08:00 1011 MW

21-10-2026 08:00 - 09:00 1011 MW

21-10-2026 09:00 - 10:00 1011 MW

21-10-2026 10:00 - 11:00 1011 MW

21-10-2026 11:00 - 12:00 1011 MW

21-10-2026 12:00 - 13:00 1011 MW

21-10-2026 13:00 - 14:00 1011 MW

21-10-2026 14:00 - 15:00 1011 MW

21-10-2026 15:00 - 16:00 1011 MW

21-10-2026 16:00 - 17:00 1011 MW

21-10-2026 17:00 - 18:00 1011 MW

21-10-2026 18:00 - 19:00 1011 MW

21-10-2026 19:00 - 20:00 1011 MW

21-10-2026 20:00 - 21:00 1011 MW

21-10-2026 21:00 - 22:00 1011 MW

21-10-2026 22:00 - 23:00 1011 MW

21-10-2026 23:00 - 24:00 1011 MW

5. Amount of LTTR remaining after curtailment:

21-10-2026 00:00 - 01:00 0 MW

21-10-2026 01:00 - 02:00 0 MW

21-10-2026 02:00 - 03:00 0 MW

21-10-2026 03:00 - 04:00 0 MW

21-10-2026 04:00 - 05:00 0 MW

21-10-2026 05:00 - 06:00 0 MW

21-10-2026 06:00 - 07:00 0 MW

21-10-2026 07:00 - 08:00 0 MW

21-10-2026 08:00 - 09:00 0 MW

21-10-2026 09:00 - 10:00 0 MW

21-10-2026 10:00 - 11:00 0 MW

21-10-2026 11:00 - 12:00 0 MW

21-10-2026 12:00 - 13:00 0 MW

21-10-2026 13:00 - 14:00 0 MW

21-10-2026 14:00 - 15:00 0 MW

21-10-2026 15:00 - 16:00 0 MW

21-10-2026 16:00 - 17:00 0 MW

21-10-2026 17:00 - 18:00 0 MW

21-10-2026 18:00 - 19:00 0 MW

21-10-2026 19:00 - 20:00 0 MW

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

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

21-10-2026 22:00 - 23:00 0 MW

21-10-2026 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*:

Planned Outage

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

Maintenance for an Planned Outage

Capacity Curtailment on the ES-FR border for delivery period 20-10-2026

by JAO

1. TSO(s)*:

RTE-TSO

2. Identification of affected Long Term Transmission Rights:

ES-FR

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

20-10-2026 11:00 - 12:00 1030 MW

20-10-2026 12:00 - 13:00 1030 MW

20-10-2026 13:00 - 14:00 1030 MW

20-10-2026 14:00 - 15:00 1030 MW

20-10-2026 15:00 - 16:00 1030 MW

5. Amount of LTTR remaining after curtailment:

20-10-2026 11:00 - 12:00 769 MW

20-10-2026 12:00 - 13:00 769 MW

20-10-2026 13:00 - 14:00 769 MW

20-10-2026 14:00 - 15:00 769 MW

20-10-2026 15:00 - 16:00 769 MW

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

  20/10/2026

     11:00-12:00 Dambron - Verger

     12:00-13:00 Dambron - Verger

     13:00-14:00 Dambron - Verger

     14:00-15:00 Dambron - Verger

     15:00-16:00 Dambron - Verger

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

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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