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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.

UPDATE - Delay in Rights Documents for MK-BG-D-DAILYPRODU-260227-01 & BG-MK-D-DAILYPRODU-260227-01

by JAO

Please note that the Programming Authorizations generation for auction ID: MK-BG-D-DAILYPRODU-260227-01 & BG-MK-D-DAILYPRODU-260227-01 have been successfully resolved.

Thank you for understanding,

JAO Operations 

Delay in Rights Documents for MK-BG-D-DAILYPRODU-260227-01 & BG-MK-D-DAILYPRODU-260227-01

by JAO

Please note that the Programming Authorizations generation for auction ID: MK-BG-D-DAILYPRODU-260227-01 & BG-MK-D-DAILYPRODU-260227-01 is delayed until further notice.

Thank you for understanding,

JAO Operations 

Capacity Curtailment on the IT-ME border for delivery period 28-02-2026

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:

28-02-2026 00:00 - 01:00 400 MW

28-02-2026 01:00 - 02:00 400 MW

28-02-2026 02:00 - 03:00 400 MW

28-02-2026 03:00 - 04:00 400 MW

28-02-2026 04:00 - 05:00 400 MW

28-02-2026 05:00 - 06:00 400 MW

28-02-2026 06:00 - 07:00 400 MW

28-02-2026 07:00 - 08:00 400 MW

28-02-2026 08:00 - 09:00 400 MW

28-02-2026 09:00 - 10:00 400 MW

28-02-2026 10:00 - 11:00 400 MW

28-02-2026 11:00 - 12:00 400 MW

28-02-2026 12:00 - 13:00 400 MW

28-02-2026 13:00 - 14:00 400 MW

28-02-2026 14:00 - 15:00 400 MW

28-02-2026 15:00 - 16:00 400 MW

28-02-2026 16:00 - 17:00 400 MW

28-02-2026 17:00 - 18:00 400 MW

28-02-2026 18:00 - 19:00 400 MW

28-02-2026 19:00 - 20:00 400 MW

28-02-2026 20:00 - 21:00 400 MW

28-02-2026 21:00 - 22:00 400 MW

28-02-2026 22:00 - 23:00 400 MW

28-02-2026 23:00 - 24:00 400 MW

5. Amount of LTTR remaining after curtailment:

28-02-2026 00:00 - 01:00 0 MW

28-02-2026 01:00 - 02:00 0 MW

28-02-2026 02:00 - 03:00 0 MW

28-02-2026 03:00 - 04:00 0 MW

28-02-2026 04:00 - 05:00 0 MW

28-02-2026 05:00 - 06:00 0 MW

28-02-2026 06:00 - 07:00 0 MW

28-02-2026 07:00 - 08:00 0 MW

28-02-2026 08:00 - 09:00 0 MW

28-02-2026 09:00 - 10:00 0 MW

28-02-2026 10:00 - 11:00 0 MW

28-02-2026 11:00 - 12:00 0 MW

28-02-2026 12:00 - 13:00 0 MW

28-02-2026 13:00 - 14:00 0 MW

28-02-2026 14:00 - 15:00 0 MW

28-02-2026 15:00 - 16:00 0 MW

28-02-2026 16:00 - 17:00 0 MW

28-02-2026 17:00 - 18:00 0 MW

28-02-2026 18:00 - 19:00 0 MW

28-02-2026 19:00 - 20:00 0 MW

28-02-2026 20:00 - 21:00 0 MW

28-02-2026 21:00 - 22:00 0 MW

28-02-2026 22:00 - 23:00 0 MW

28-02-2026 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*:

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

*According to section 57.3 of the EU HAR, this field can be filled in within 24 hours after the initial publication

Capacity Curtailment on the ME-IT border for delivery period 28-02-2026

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:

28-02-2026 00:00 - 01:00 399 MW

28-02-2026 01:00 - 02:00 399 MW

28-02-2026 02:00 - 03:00 399 MW

28-02-2026 03:00 - 04:00 399 MW

28-02-2026 04:00 - 05:00 399 MW

28-02-2026 05:00 - 06:00 399 MW

28-02-2026 06:00 - 07:00 399 MW

28-02-2026 07:00 - 08:00 399 MW

28-02-2026 08:00 - 09:00 399 MW

28-02-2026 09:00 - 10:00 399 MW

28-02-2026 10:00 - 11:00 399 MW

28-02-2026 11:00 - 12:00 399 MW

28-02-2026 12:00 - 13:00 399 MW

28-02-2026 13:00 - 14:00 399 MW

28-02-2026 14:00 - 15:00 399 MW

28-02-2026 15:00 - 16:00 399 MW

28-02-2026 16:00 - 17:00 399 MW

28-02-2026 17:00 - 18:00 399 MW

28-02-2026 18:00 - 19:00 399 MW

28-02-2026 19:00 - 20:00 399 MW

28-02-2026 20:00 - 21:00 399 MW

28-02-2026 21:00 - 22:00 399 MW

28-02-2026 22:00 - 23:00 399 MW

28-02-2026 23:00 - 24:00 399 MW

5. Amount of LTTR remaining after curtailment:

28-02-2026 00:00 - 01:00 0 MW

28-02-2026 01:00 - 02:00 0 MW

28-02-2026 02:00 - 03:00 0 MW

28-02-2026 03:00 - 04:00 0 MW

28-02-2026 04:00 - 05:00 0 MW

28-02-2026 05:00 - 06:00 0 MW

28-02-2026 06:00 - 07:00 0 MW

28-02-2026 07:00 - 08:00 0 MW

28-02-2026 08:00 - 09:00 0 MW

28-02-2026 09:00 - 10:00 0 MW

28-02-2026 10:00 - 11:00 0 MW

28-02-2026 11:00 - 12:00 0 MW

28-02-2026 12:00 - 13:00 0 MW

28-02-2026 13:00 - 14:00 0 MW

28-02-2026 14:00 - 15:00 0 MW

28-02-2026 15:00 - 16:00 0 MW

28-02-2026 16:00 - 17:00 0 MW

28-02-2026 17:00 - 18:00 0 MW

28-02-2026 18:00 - 19:00 0 MW

28-02-2026 19:00 - 20:00 0 MW

28-02-2026 20:00 - 21:00 0 MW

28-02-2026 21:00 - 22:00 0 MW

28-02-2026 22:00 - 23:00 0 MW

28-02-2026 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*:

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

*According to section 57.3 of the EU HAR, this field can be filled in within 24 hours after the initial publication

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 NLL.

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-ME border for delivery period 27-02-2026

by JAO

1. TSO(s)*:

TERNA

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:

27-02-2026 07:00 - 08:00 400 MW

27-02-2026 08:00 - 09:00 400 MW

27-02-2026 09:00 - 10:00 400 MW

27-02-2026 10:00 - 11:00 400 MW

27-02-2026 11:00 - 12:00 400 MW

27-02-2026 12:00 - 13:00 400 MW

27-02-2026 13:00 - 14:00 400 MW

27-02-2026 14:00 - 15:00 400 MW

27-02-2026 15:00 - 16:00 400 MW

27-02-2026 16:00 - 17:00 400 MW

27-02-2026 17:00 - 18:00 400 MW

27-02-2026 18:00 - 19:00 400 MW

27-02-2026 19:00 - 20:00 400 MW

27-02-2026 20:00 - 21:00 400 MW

27-02-2026 21:00 - 22:00 400 MW

27-02-2026 22:00 - 23:00 400 MW

27-02-2026 23:00 - 24:00 400 MW

5. Amount of LTTR remaining after curtailment:

27-02-2026 07:00 - 08:00 0 MW

27-02-2026 08:00 - 09:00 0 MW

27-02-2026 09:00 - 10:00 0 MW

27-02-2026 10:00 - 11:00 0 MW

27-02-2026 11:00 - 12:00 0 MW

27-02-2026 12:00 - 13:00 0 MW

27-02-2026 13:00 - 14:00 0 MW

27-02-2026 14:00 - 15:00 0 MW

27-02-2026 15:00 - 16:00 0 MW

27-02-2026 16:00 - 17:00 0 MW

27-02-2026 17:00 - 18:00 0 MW

27-02-2026 18:00 - 19:00 0 MW

27-02-2026 19:00 - 20:00 0 MW

27-02-2026 20:00 - 21:00 0 MW

27-02-2026 21:00 - 22:00 0 MW

27-02-2026 22:00 - 23:00 0 MW

27-02-2026 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*:

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

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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