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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

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

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

SOLVED - Domain JAO.EU not available

by JAO

Please be informed that all issues related to the jao.eu domain have now been successfully resolved. All associated applications and platforms are fully accessible.

Should you experience any further difficulties, please do not hesitate to contact us.

JAO Inside Information Platform Currently Unreachable

by JAO
Please note that, due to a technical issue affecting the jao.eu domain, the JAO Inside Information Platform is currently not reachable. We are working to resolve the issue as a matter of priority and will inform you as soon as access has been restored.

Domain JAO.EU not available

by JAO
Please be informed that we are currently experiencing an issue with our domain jao.eu. As a result, access to all applications, email and websites associated with jao.eu is temporarily unavailable. We are working to resolve the issue as quickly as possible. Once the situation has been fully restored, we will inform you accordingly. Should you have any questions in the meantime, please do not hesitate to contact us at our operation number +352 27 62 38 38

Capacity Curtailment on the ME-IT border for delivery period 13-02-2026

by JAO

1. TSO(s)*:

CGES

2. Identification of affected Long Term Transmission Rights:

ME-IT

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

13-02-2026 07:00 - 08:00 399 MW

13-02-2026 08:00 - 09:00 399 MW

13-02-2026 09:00 - 10:00 399 MW

13-02-2026 10:00 - 11:00 399 MW

13-02-2026 11:00 - 12:00 399 MW

13-02-2026 12:00 - 13:00 399 MW

13-02-2026 13:00 - 14:00 399 MW

13-02-2026 14:00 - 15:00 399 MW

13-02-2026 15:00 - 16:00 399 MW

13-02-2026 16:00 - 17:00 399 MW

5. Amount of LTTR remaining after curtailment:

13-02-2026 07:00 - 08:00 0 MW

13-02-2026 08:00 - 09:00 0 MW

13-02-2026 09:00 - 10:00 0 MW

13-02-2026 10:00 - 11:00 0 MW

13-02-2026 11:00 - 12:00 0 MW

13-02-2026 12:00 - 13:00 0 MW

13-02-2026 13:00 - 14:00 0 MW

13-02-2026 14:00 - 15:00 0 MW

13-02-2026 15:00 - 16:00 0 MW

13-02-2026 16:00 - 17:00 0 MW

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

HVDC Monita

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

Capacity Curtailment on the IT-ME border for delivery period 13-02-2026

by JAO

1. TSO(s)*:

CGES

2. Identification of affected Long Term Transmission Rights:

IT-ME

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

13-02-2026 07:00 - 08:00 400 MW

13-02-2026 08:00 - 09:00 400 MW

13-02-2026 09:00 - 10:00 400 MW

13-02-2026 10:00 - 11:00 400 MW

13-02-2026 11:00 - 12:00 400 MW

13-02-2026 12:00 - 13:00 400 MW

13-02-2026 13:00 - 14:00 400 MW

13-02-2026 14:00 - 15:00 400 MW

13-02-2026 15:00 - 16:00 400 MW

13-02-2026 16:00 - 17:00 400 MW

5. Amount of LTTR remaining after curtailment:

13-02-2026 07:00 - 08:00 0 MW

13-02-2026 08:00 - 09:00 0 MW

13-02-2026 09:00 - 10:00 0 MW

13-02-2026 10:00 - 11:00 0 MW

13-02-2026 11:00 - 12:00 0 MW

13-02-2026 12:00 - 13:00 0 MW

13-02-2026 13:00 - 14:00 0 MW

13-02-2026 14:00 - 15:00 0 MW

13-02-2026 15:00 - 16:00 0 MW

13-02-2026 16:00 - 17:00 0 MW

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

HVDC Monita

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

Capacity Curtailment on the SI-IT border for delivery period 12-02-2026

by JAO

1. TSO(s)*:

TERNA

2. Identification of affected Long Term Transmission Rights:

SI-IT

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

12-02-2026 09:00 - 10:00 311 MW

12-02-2026 10:00 - 11:00 311 MW

12-02-2026 11:00 - 12:00 311 MW

5. Amount of LTTR remaining after curtailment:

12-02-2026 09:00 - 10:00 283 MW

12-02-2026 10:00 - 11:00 283 MW

12-02-2026 11:00 - 12:00 283 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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JAO workers

Frequently asked questions

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

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