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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
  • 470+
    Registered Market Participants
  • 20k+
    Auctions per year
  • 100 %
    Auction Tool Availability
  • 95
    Employees
  • 50
    TSOs serviced

Latest market messages

Capacity Curtailment on the EE-LV border for delivery period 11-06-2025

by JAO

1. TSO(s)*:

ELERING

2. Identification of affected Long Term Transmission Rights:

EE-LV

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

11-06-2025 00:00 - 01:00 500 MW

11-06-2025 01:00 - 02:00 500 MW

11-06-2025 02:00 - 03:00 500 MW

11-06-2025 03:00 - 04:00 500 MW

11-06-2025 04:00 - 05:00 500 MW

11-06-2025 05:00 - 06:00 500 MW

11-06-2025 06:00 - 07:00 500 MW

11-06-2025 07:00 - 08:00 500 MW

11-06-2025 08:00 - 09:00 500 MW

11-06-2025 09:00 - 10:00 500 MW

11-06-2025 10:00 - 11:00 500 MW

11-06-2025 11:00 - 12:00 500 MW

11-06-2025 12:00 - 13:00 500 MW

11-06-2025 13:00 - 14:00 500 MW

11-06-2025 14:00 - 15:00 500 MW

11-06-2025 15:00 - 16:00 500 MW

11-06-2025 16:00 - 17:00 500 MW

11-06-2025 17:00 - 18:00 500 MW

11-06-2025 18:00 - 19:00 500 MW

11-06-2025 19:00 - 20:00 500 MW

11-06-2025 20:00 - 21:00 500 MW

11-06-2025 21:00 - 22:00 500 MW

11-06-2025 22:00 - 23:00 500 MW

11-06-2025 23:00 - 24:00 500 MW

5. Amount of LTTR remaining after curtailment:

11-06-2025 00:00 - 01:00 458 MW

11-06-2025 01:00 - 02:00 455 MW

11-06-2025 02:00 - 03:00 458 MW

11-06-2025 03:00 - 04:00 455 MW

11-06-2025 04:00 - 05:00 458 MW

11-06-2025 05:00 - 06:00 457 MW

11-06-2025 06:00 - 07:00 457 MW

11-06-2025 07:00 - 08:00 462 MW

11-06-2025 08:00 - 09:00 462 MW

11-06-2025 09:00 - 10:00 462 MW

11-06-2025 10:00 - 11:00 460 MW

11-06-2025 11:00 - 12:00 459 MW

11-06-2025 12:00 - 13:00 459 MW

11-06-2025 13:00 - 14:00 459 MW

11-06-2025 14:00 - 15:00 459 MW

11-06-2025 15:00 - 16:00 462 MW

11-06-2025 16:00 - 17:00 463 MW

11-06-2025 17:00 - 18:00 460 MW

11-06-2025 18:00 - 19:00 462 MW

11-06-2025 19:00 - 20:00 459 MW

11-06-2025 20:00 - 21:00 460 MW

11-06-2025 21:00 - 22:00 458 MW

11-06-2025 22:00 - 23:00 455 MW

11-06-2025 23:00 - 24:00 455 MW

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

https://umm.nordpoolgroup.com/#/messages?publicationDate=all&eventDate=custom&connections=EE-LV&eventDateStart=1970-01-01&eventDateStop=2125-04-20

https://baltic.transparency-dashboard.eu/node/108

7. Why alternative measures are not sufficient to avoid the expected violation of operational security limit(s)*?

There is no alternative to the curtailment of the affected LTTRs.

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

UPDATE: eCAT unavailability

by JAO

Dear Market Participants,

eCAT services is fully available.

In case you encounter any issues please contact JAO Operations.

Thank you for your understanding.

JAO Operations Team

Daily CH<>IT Auctions extended

by JAO

Dear Market Participant,

We wish to inform you that the below auctions for delivery date 11/06/2025 have been extended. Please see the new bid submission closing times below:

CH-IT-D-DAILYPRODU-250611-01 closing at 10:30

IT-CH-D-DAILYPRODU-250611-01 closing at 10:50


Thank you for your understanding.

JAO Operations Team

eCAT unavailability

by JAO

Due to technical issues, our  eCAT services are currently unavailable.

We are investigating the situation and we will update the market accordingly.

Capacity Curtailment on the CH-IT border for delivery period 11-06-2025

by JAO

1. TSO(s)*:

SWISSGRID

2. Identification of affected Long Term Transmission Rights:

CH-IT

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:

11-06-2025 07:00 - 08:00 1376 MW

11-06-2025 08:00 - 09:00 1523 MW

11-06-2025 09:00 - 10:00 1523 MW

11-06-2025 10:00 - 11:00 1523 MW

11-06-2025 11:00 - 12:00 1523 MW

11-06-2025 12:00 - 13:00 1523 MW

11-06-2025 13:00 - 14:00 1523 MW

11-06-2025 14:00 - 15:00 1523 MW

11-06-2025 15:00 - 16:00 1523 MW

11-06-2025 16:00 - 17:00 1523 MW

5. Amount of LTTR remaining after curtailment:

11-06-2025 07:00 - 08:00 679 MW

11-06-2025 08:00 - 09:00 663 MW

11-06-2025 09:00 - 10:00 750 MW

11-06-2025 10:00 - 11:00 722 MW

11-06-2025 11:00 - 12:00 722 MW

11-06-2025 12:00 - 13:00 784 MW

11-06-2025 13:00 - 14:00 784 MW

11-06-2025 14:00 - 15:00 784 MW

11-06-2025 15:00 - 16:00 859 MW

11-06-2025 16:00 - 17:00 859 MW

Capacity Curtailment on the IT-FR border for delivery period 11-06-2025

by JAO

1. TSO(s)*:

TERNA, RTE

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:

11-06-2025 18:00 - 19:00 1867 MW

11-06-2025 19:00 - 20:00 1867 MW

11-06-2025 20:00 - 21:00 1867 MW

11-06-2025 21:00 - 22:00 1867 MW

11-06-2025 22:00 - 23:00 1867 MW

5. Amount of LTTR remaining after curtailment:

11-06-2025 18:00 - 19:00 1749 MW

11-06-2025 19:00 - 20:00 1749 MW

11-06-2025 20:00 - 21:00 1749 MW

11-06-2025 21:00 - 22:00 1777 MW

11-06-2025 22:00 - 23:00 1777 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 in the calculation

*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 EE-LV border for delivery period 10-06-2025

by JAO

1. TSO(s)*:

ELERING

2. Identification of affected Long Term Transmission Rights:

EE-LV

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

10-06-2025 05:00 - 06:00 500 MW

10-06-2025 06:00 - 07:00 500 MW

10-06-2025 07:00 - 08:00 500 MW

10-06-2025 08:00 - 09:00 500 MW

10-06-2025 09:00 - 10:00 500 MW

10-06-2025 10:00 - 11:00 500 MW

10-06-2025 11:00 - 12:00 500 MW

10-06-2025 12:00 - 13:00 500 MW

10-06-2025 13:00 - 14:00 500 MW

10-06-2025 14:00 - 15:00 500 MW

10-06-2025 15:00 - 16:00 500 MW

10-06-2025 16:00 - 17:00 500 MW

10-06-2025 17:00 - 18:00 500 MW

10-06-2025 18:00 - 19:00 500 MW

10-06-2025 19:00 - 20:00 500 MW

10-06-2025 20:00 - 21:00 500 MW

10-06-2025 21:00 - 22:00 500 MW

10-06-2025 22:00 - 23:00 500 MW

10-06-2025 23:00 - 24:00 500 MW

5. Amount of LTTR remaining after curtailment:

10-06-2025 05:00 - 06:00 459 MW

10-06-2025 06:00 - 07:00 459 MW

10-06-2025 07:00 - 08:00 464 MW

10-06-2025 08:00 - 09:00 464 MW

10-06-2025 09:00 - 10:00 462 MW

10-06-2025 10:00 - 11:00 462 MW

10-06-2025 11:00 - 12:00 459 MW

10-06-2025 12:00 - 13:00 459 MW

10-06-2025 13:00 - 14:00 459 MW

10-06-2025 14:00 - 15:00 459 MW

10-06-2025 15:00 - 16:00 460 MW

10-06-2025 16:00 - 17:00 463 MW

10-06-2025 17:00 - 18:00 462 MW

10-06-2025 18:00 - 19:00 460 MW

10-06-2025 19:00 - 20:00 459 MW

10-06-2025 20:00 - 21:00 459 MW

10-06-2025 21:00 - 22:00 458 MW

10-06-2025 22:00 - 23:00 458 MW

10-06-2025 23:00 - 24:00 458 MW

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

https://umm.nordpoolgroup.com/#/messages?publicationDate=all&eventDate=custom&connections=EE-LV&eventDateStart=1970-01-01&eventDateStop=2125-04-20

https://baltic.transparency-dashboard.eu/node/108

7. Why alternative measures are not sufficient to avoid the expected violation of operational security limit(s)*?

There is no alternative to the curtailment of the affected LTTRs.

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

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. 

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

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