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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

Urgent Market update - 2nd round for IT-ME and ME-IT daily auction for Market Period 07/02/2026 - 08/02/2026

by JAO

Please note that the 2nd round for the following auctions will open at 10:00CET and closing at 10:25CET:

New auction IDs to use in your bid files:

  • IT-ME-D-DAILYPRODU-260207-02
  • ME-IT-D-DAILYPRODU-260207-02

Thank you for your understanding

Urgent Market Update: Cancellation of ME-IT and IT-ME for Market Period 07/02/2026-08/02/2026

by JAO

As per TSO request, the following auctions have been cancelled for market period 07/02/2026

ME-IT-D-DAILYPRODU-260207-01
IT-ME-D-DAILYPRODU-260207-01
And the following auctions have been created for market period 07/02/2026

ME-IT-D-DAILYPRODU-260207-02 Opening 10:00 / Closing 10:25
IT- ME-D-DAILYPRODU-260207-02 Opening 10:00 / Closing 10:25

Please make sure to use the new auction ID in your bid files.

Urgent Market Update: Delay of (CH-IT) for Market Period 07/02/2026

by JAO

Please note that the CH-IT Daily Auction for market period 07/02/2026 with the auction ID CH-IT-D-DAILYPRODU-260207-01 has been delayed. Bid submission gate opens at 09:40.

Capacity Curtailment on the IF2-FR-GB && IF2-GB-FR border for delivery period 21/03/2026

by JAO

1. TSO(s)*:

National Grid Interconnectors Limited (NGIC) and RTE EDF Transport S.A. (RTE)

2. Identification of affected Long Term Transmission Rights:

IF2-FR-GB && IF2-GB-FR

3, Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

4. Affected volume in MW / period:

21-03-2026 10:00 - 11:00 649 MW

21-03-2026 11:00 - 12:00 649 MW

21-03-2026 12:00 - 13:00 649 MW

21-03-2026 13:00 - 14:00 649 MW

5. Amount of LTTR remaining after curtailment:

21-03-2026 10:00 - 11:00 0 MW

21-03-2026 11:00 - 12:00 0 MW

21-03-2026 12:00 - 13:00 0 MW

21-03-2026 13:00 - 14:00 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)*?

*According to section 57.3 of the EU HAR, this field can be filled in within 24 hours after the initial publication.
      Capacity limitation due to planned maintenance

Unavailability of Data in Publication Tool Nordic CCR For Business Date 05/02/2026

by JAO

We would like to inform all Market Participants that the data being published in Publication Tool Nordic CCR for the Preliminary Domain for delivery 05/02/2026, will not be available as it's not generated by the provider.

Thank you for your understanding.

Delay of publications in Publication Tool For Business Date 04/02/2026

by JAO

We would like to inform all Market Participants about possible delays of data being published in Publication Tool for delivery 04/02/2026.

Please also expect some delays for the upcoming days too.

Thank you for your understanding.

2026 Auction Calendar update

by JAO

We would like to inform you that as per TSOs request, the 2026 Auction Calendar has been updated on the corridor IF2- GB<>FR

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

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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JAO workers

Frequently asked questions

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

Do you need support?

If you can't find an answer to your question, our team is here to help!