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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

Approved North Sea Link Access Rules

by JAO

Further to our previous communication regarding the North Sea Link long-term auctions, we are pleased to inform you that the NSL Access Rules and Charging Methodology, including the NSL Long Term Allocation Rules, have now been approved by the relevant National Regulatory Authority and published in the relevant section of our website.

The rules are effective as of their publication date, 13 August 2026, and shall apply to Capacity Allocation for Long Term Transmission Rights for delivery periods from October 2026 onwards.

As previously communicated, the first monthly auctions for the North Sea Link Interconnector are scheduled to open on 17 September 2026.

Should you have any questions, please do not hesitate to contact us!

Planned Maintenance – Inside Information Platform

by JAO

Dear all,

Please be informed that planned maintenance of the JAO Inside Information Platform (IIP) has been scheduled.

Maintenance window:

Thursday 13 August 2026 - 11:30 to 11:45 (UTC)

Expected impact:

The JAO Remit IIP Platform will be unavailable during the deployment.

Expected service restoration:

Thursday 13 August 2026 – 11: 45 (UTC)

We apologize for any inconvenience and appreciate your understanding.

Kind regards,

JAO Operations

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.

Delay in Availability of Allocation Results for IT-AT, CH-IT Monthly September Auction

by JAO

Please be informed that the allocation results for the following auctions will be made available slightly later than usual:

AT-IT-M-BASE-------260901-01

IT-AT-M-BASE-------260901-01

CH-IT-M-BASE-------260901-01

The results will be distributed as soon as they become available.

We apologize for any inconvenience and thank you for your understanding.

Bets regards,

JAO Operations

Capacity Curtailment on the IT-CH border for delivery period 14-08-2026

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:

14-08-2026 19:00 - 20:00 720 MW

14-08-2026 20:00 - 21:00 720 MW

14-08-2026 21:00 - 22:00 720 MW

5. Amount of LTTR remaining after curtailment:

14-08-2026 19:00 - 20:00 630 MW

14-08-2026 20:00 - 21:00 630 MW

14-08-2026 21:00 - 22:00 533 MW

Capacity Curtailment on the IT-FR border for delivery period 14-08-2026

by JAO

1. TSO(s)*:

TERNA

2. Identification of affected Long Term Transmission Rights:

IT-FR

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

14-08-2026 18:00 - 19:00 1369 MW

14-08-2026 19:00 - 20:00 1369 MW

14-08-2026 20:00 - 21:00 1369 MW

14-08-2026 21:00 - 22:00 1369 MW

14-08-2026 22:00 - 23:00 1369 MW

5. Amount of LTTR remaining after curtailment:

14-08-2026 18:00 - 19:00 1220 MW

14-08-2026 19:00 - 20:00 761 MW

14-08-2026 20:00 - 21:00 761 MW

14-08-2026 21:00 - 22:00 635 MW

14-08-2026 22:00 - 23:00 1317 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

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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