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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

Solved: Auction data unavailable.

by JAO

Please be informed that our IT department has now confirmed these issues has now been fixed and auction data on our website is available again.
We apologize for any inconvenience this situation may have caused.

Auction data unavailable.

by JAO

Please be informed that at this moment auction data on our website is currently unavailable.
We are aware if this issue and working toward resolving it as soon as possible.
Further information to follow when available

Capacity Curtailment on the FR-CH border for delivery period 08-08-2026

by JAO

1. TSO(s)*:

RTE-TSO

2. Identification of affected Long Term Transmission Rights:

FR-CH

3. Triggering event:

Curtailment due to Curtailment to ensure operation remains within Operational Security Limits

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

5. Amount of LTTR remaining after curtailment:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Publication Tool data for Core ID CCR IDA1 Delivery Day 07/08/2026

by JAO

Please be informed that, due to the cancellation of IDA1 for the delivery date 07/08/2026, no IDA1 publication data will be available in the CORE ID CCR Publication Tool 

Delay in Market Coupling Results publication

by JAO

The Market Coupling process is delayed due to technical reasons or market issues.

Therefore, the publication of the final Market Coupling Results is delayed.

Further information can be found in the Fallback Manual that is published on the websites of NEMO Committee and ENTSO-E.

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-FR-GB,  IF2-GB-FR, VKL-D1-GB, VKL-GB-D1, NLL-GB-BE and NLL-GB-BE .

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

Capacity Curtailment on the IT-CH border for delivery period 07-08-2026

by JAO

1. TSO(s)*:

TERNA

2. Identification of affected Long Term Transmission Rights:

IT-CH

3. Triggering event:

Curtailment due to Curtailment to ensure operation remains within Operational Security Limits

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

07-08-2026 18:00 - 19:00 720 MW

07-08-2026 19:00 - 20:00 720 MW

07-08-2026 20:00 - 21:00 720 MW

07-08-2026 21:00 - 22:00 720 MW

07-08-2026 22:00 - 23:00 720 MW

5. Amount of LTTR remaining after curtailment:

07-08-2026 18:00 - 19:00 593 MW

07-08-2026 19:00 - 20:00 0 MW

07-08-2026 20:00 - 21:00 0 MW

07-08-2026 21:00 - 22:00 0 MW

07-08-2026 22:00 - 23:00 593 MW

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.

Do you need support?

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