See Our

Annual Report

Read here

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.

 

Go down

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

Capacity Curtailment on the IF1-GB-FR border for delivery period 09-04-2026

by JAO

1. TSO(s)*:

RNP

2. Identification of affected Long Term Transmission Rights:

IF1-GB-FR

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

09-04-2026 00:00 - 01:00 996 MW

09-04-2026 01:00 - 02:00 996 MW

09-04-2026 02:00 - 03:00 996 MW

09-04-2026 03:00 - 04:00 996 MW

09-04-2026 04:00 - 05:00 996 MW

09-04-2026 05:00 - 06:00 996 MW

09-04-2026 06:00 - 07:00 996 MW

09-04-2026 07:00 - 08:00 996 MW

09-04-2026 08:00 - 09:00 996 MW

09-04-2026 09:00 - 10:00 996 MW

09-04-2026 10:00 - 11:00 996 MW

09-04-2026 11:00 - 12:00 996 MW

09-04-2026 12:00 - 13:00 996 MW

09-04-2026 13:00 - 14:00 996 MW

09-04-2026 14:00 - 15:00 996 MW

09-04-2026 15:00 - 16:00 996 MW

09-04-2026 16:00 - 17:00 996 MW

09-04-2026 17:00 - 18:00 996 MW

09-04-2026 18:00 - 19:00 996 MW

09-04-2026 19:00 - 20:00 996 MW

09-04-2026 20:00 - 21:00 996 MW

09-04-2026 21:00 - 22:00 996 MW

09-04-2026 22:00 - 23:00 996 MW

09-04-2026 23:00 - 24:00 996 MW

5. Amount of LTTR remaining after curtailment:

09-04-2026 00:00 - 01:00 480 MW

09-04-2026 01:00 - 02:00 480 MW

09-04-2026 02:00 - 03:00 480 MW

09-04-2026 03:00 - 04:00 480 MW

09-04-2026 04:00 - 05:00 480 MW

09-04-2026 05:00 - 06:00 480 MW

09-04-2026 06:00 - 07:00 480 MW

09-04-2026 07:00 - 08:00 480 MW

09-04-2026 08:00 - 09:00 480 MW

09-04-2026 09:00 - 10:00 480 MW

09-04-2026 10:00 - 11:00 480 MW

09-04-2026 11:00 - 12:00 480 MW

09-04-2026 12:00 - 13:00 480 MW

09-04-2026 13:00 - 14:00 480 MW

09-04-2026 14:00 - 15:00 480 MW

09-04-2026 15:00 - 16:00 480 MW

09-04-2026 16:00 - 17:00 480 MW

09-04-2026 17:00 - 18:00 480 MW

09-04-2026 18:00 - 19:00 480 MW

09-04-2026 19:00 - 20:00 480 MW

09-04-2026 20:00 - 21:00 480 MW

09-04-2026 21:00 - 22:00 480 MW

09-04-2026 22:00 - 23:00 480 MW

09-04-2026 23:00 - 24:00 480 MW

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

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

*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 IF1-FR-GB border for delivery period 09-04-2026

by JAO

1. TSO(s)*:

RNP

2. Identification of affected Long Term Transmission Rights:

IF1-FR-GB

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

09-04-2026 00:00 - 01:00 993 MW

09-04-2026 01:00 - 02:00 993 MW

09-04-2026 02:00 - 03:00 993 MW

09-04-2026 03:00 - 04:00 993 MW

09-04-2026 04:00 - 05:00 993 MW

09-04-2026 05:00 - 06:00 993 MW

09-04-2026 06:00 - 07:00 993 MW

09-04-2026 07:00 - 08:00 993 MW

09-04-2026 08:00 - 09:00 993 MW

09-04-2026 09:00 - 10:00 993 MW

09-04-2026 10:00 - 11:00 993 MW

09-04-2026 11:00 - 12:00 993 MW

09-04-2026 12:00 - 13:00 993 MW

09-04-2026 13:00 - 14:00 993 MW

09-04-2026 14:00 - 15:00 993 MW

09-04-2026 15:00 - 16:00 993 MW

09-04-2026 16:00 - 17:00 993 MW

09-04-2026 17:00 - 18:00 993 MW

09-04-2026 18:00 - 19:00 993 MW

09-04-2026 19:00 - 20:00 993 MW

09-04-2026 20:00 - 21:00 993 MW

09-04-2026 21:00 - 22:00 993 MW

09-04-2026 22:00 - 23:00 993 MW

09-04-2026 23:00 - 24:00 993 MW

5. Amount of LTTR remaining after curtailment:

09-04-2026 00:00 - 01:00 482 MW

09-04-2026 01:00 - 02:00 482 MW

09-04-2026 02:00 - 03:00 482 MW

09-04-2026 03:00 - 04:00 482 MW

09-04-2026 04:00 - 05:00 482 MW

09-04-2026 05:00 - 06:00 482 MW

09-04-2026 06:00 - 07:00 482 MW

09-04-2026 07:00 - 08:00 482 MW

09-04-2026 08:00 - 09:00 482 MW

09-04-2026 09:00 - 10:00 482 MW

09-04-2026 10:00 - 11:00 482 MW

09-04-2026 11:00 - 12:00 482 MW

09-04-2026 12:00 - 13:00 482 MW

09-04-2026 13:00 - 14:00 482 MW

09-04-2026 14:00 - 15:00 482 MW

09-04-2026 15:00 - 16:00 482 MW

09-04-2026 16:00 - 17:00 482 MW

09-04-2026 17:00 - 18:00 482 MW

09-04-2026 18:00 - 19:00 482 MW

09-04-2026 19:00 - 20:00 482 MW

09-04-2026 20:00 - 21:00 482 MW

09-04-2026 21:00 - 22:00 482 MW

09-04-2026 22:00 - 23:00 482 MW

09-04-2026 23:00 - 24:00 482 MW

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

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

*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 28-03-2026

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:

28-03-2026 09:00 - 10:00 400 MW

28-03-2026 10:00 - 11:00 400 MW

28-03-2026 11:00 - 12:00 400 MW

28-03-2026 12:00 - 13:00 400 MW

28-03-2026 13:00 - 14:00 400 MW

28-03-2026 14:00 - 15:00 400 MW

28-03-2026 15:00 - 16:00 400 MW

5. Amount of LTTR remaining after curtailment:

28-03-2026 09:00 - 10:00 0 MW

28-03-2026 10:00 - 11:00 0 MW

28-03-2026 11:00 - 12:00 0 MW

28-03-2026 12:00 - 13:00 0 MW

28-03-2026 13:00 - 14:00 0 MW

28-03-2026 14:00 - 15:00 0 MW

28-03-2026 15:00 - 16:00 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

Delay in the publication of data on Nordic PUTO CCR for BD 27/03/2026

by JAO

Dear Market Participants,

Due to the Technical issue at data providers end , please note that there is delay  in data publication Nordic PUTO CCR for delivery date 27/03/2026.

Thank you for your understanding.

Best regards,

Operations Team

Daylight Saving Time Clock Change - business day 29-03-2026

by JAO

We kindly request your attention to the upcoming clock change on 29-03-2026.

Please ensure that the following adjustments are made to your bid files which are submitted for the market period of 29-03-2026:

Update the Bid Time Interval section to reflect: (2026-03-28T23:00Z/2026-03-29T22:00Z).

Furthermore, please be aware that for the market period of 29-03-2026, one less position should be included in the files, while maintaining the sequential order (1, 2, 3, 4…).

For market period starting 30-03-2026 and onwards, adjust the Bid Time Interval section to (2026-03-29T22:00Z/2026-03-30T22:00Z).

Thank you for your attention to these details.

Capacity Curtailment on the ES-FR border for delivery period 27-03-2026

by JAO

1. TSO(s)*:

RTE-TSO, REE

2. Identification of affected Long Term Transmission Rights:

ES-FR

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

27-03-2026 06:00 - 07:00 1830 MW

27-03-2026 07:00 - 08:00 1830 MW

27-03-2026 08:00 - 09:00 1830 MW

27-03-2026 09:00 - 10:00 1830 MW

27-03-2026 10:00 - 11:00 1830 MW

27-03-2026 11:00 - 12:00 1830 MW

27-03-2026 12:00 - 13:00 1830 MW

27-03-2026 13:00 - 14:00 1830 MW

27-03-2026 14:00 - 15:00 1830 MW

27-03-2026 15:00 - 16:00 1830 MW

27-03-2026 16:00 - 17:00 1830 MW

5. Amount of LTTR remaining after curtailment:

27-03-2026 06:00 - 07:00 1711 MW

27-03-2026 07:00 - 08:00 971 MW

27-03-2026 08:00 - 09:00 971 MW

27-03-2026 09:00 - 10:00 971 MW

27-03-2026 10:00 - 11:00 971 MW

27-03-2026 11:00 - 12:00 971 MW

27-03-2026 12:00 - 13:00 971 MW

27-03-2026 13:00 - 14:00 971 MW

27-03-2026 14:00 - 15:00 971 MW

27-03-2026 15:00 - 16:00 971 MW

27-03-2026 16:00 - 17:00 971 MW

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

27/03/2026

      06:00-07:00 Network Security

      07:00-08:00 Dambron - Verger

      08:00-09:00 Dambron - Verger

      09:00-10:00 Dambron - Verger

      10:00-11:00 Dambron - Verger

      11:00-12:00 Dambron - Verger

      12:00-13:00 Dambron - Verger

      13:00-14:00 Dambron - Verger

      14:00-15:00 Dambron - Verger

      15:00-16:00 Dambron - Verger

      16:00-17:00 Dambron - Verger

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

The available remedial actions were assessed as insufficient or ineffective to avoid the violation of operational security limits

*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 IF1-GB-FR border for delivery period 08-04-2026

by JAO

1. TSO(s)*:

RNP

2. Identification of affected Long Term Transmission Rights:

IF1-GB-FR

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

08-04-2026 08:00 - 09:00 996 MW

08-04-2026 09:00 - 10:00 996 MW

08-04-2026 10:00 - 11:00 996 MW

08-04-2026 11:00 - 12:00 996 MW

08-04-2026 12:00 - 13:00 996 MW

08-04-2026 13:00 - 14:00 996 MW

08-04-2026 14:00 - 15:00 996 MW

08-04-2026 15:00 - 16:00 996 MW

08-04-2026 16:00 - 17:00 996 MW

08-04-2026 17:00 - 18:00 996 MW

08-04-2026 18:00 - 19:00 996 MW

08-04-2026 19:00 - 20:00 996 MW

08-04-2026 20:00 - 21:00 996 MW

08-04-2026 21:00 - 22:00 996 MW

08-04-2026 22:00 - 23:00 996 MW

08-04-2026 23:00 - 24:00 996 MW

5. Amount of LTTR remaining after curtailment:

08-04-2026 08:00 - 09:00 480 MW

08-04-2026 09:00 - 10:00 480 MW

08-04-2026 10:00 - 11:00 480 MW

08-04-2026 11:00 - 12:00 480 MW

08-04-2026 12:00 - 13:00 480 MW

08-04-2026 13:00 - 14:00 480 MW

08-04-2026 14:00 - 15:00 480 MW

08-04-2026 15:00 - 16:00 480 MW

08-04-2026 16:00 - 17:00 480 MW

08-04-2026 17:00 - 18:00 480 MW

08-04-2026 18:00 - 19:00 480 MW

08-04-2026 19:00 - 20:00 480 MW

08-04-2026 20:00 - 21:00 480 MW

08-04-2026 21:00 - 22:00 480 MW

08-04-2026 22:00 - 23:00 480 MW

08-04-2026 23:00 - 24:00 480 MW

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

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

*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. 

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.

Get to know us
Image
JAO workers

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!