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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

Delay in Rights Documents Distribution for NLL ID 00-06 for mkt period 16/12

by JAO

We are currently experiencing technical issues with the distribution of the Rights Documents for the following auctions:

NLL-BE-GB-I-ID0006-251216-01

NLL-GB-BE-I-ID0006-251216-01

We kindly request that you please download the files directly from the Trader UI.

Thank you for your cooperation.

Capacity Curtailment on the DE-AT border for delivery period 17-12-2025

by JAO

1. TSO(s)*:

APG

2. Identification of affected Long Term Transmission Rights:

DE-AT

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

17-12-2025 00:00 - 01:00 4819 MW

17-12-2025 01:00 - 02:00 4819 MW

17-12-2025 02:00 - 03:00 4819 MW

17-12-2025 03:00 - 04:00 4819 MW

17-12-2025 04:00 - 05:00 4819 MW

17-12-2025 05:00 - 06:00 4819 MW

17-12-2025 06:00 - 07:00 4819 MW

17-12-2025 07:00 - 08:00 4819 MW

17-12-2025 08:00 - 09:00 4819 MW

17-12-2025 09:00 - 10:00 4819 MW

17-12-2025 10:00 - 11:00 4819 MW

17-12-2025 11:00 - 12:00 4819 MW

17-12-2025 12:00 - 13:00 4819 MW

17-12-2025 13:00 - 14:00 4819 MW

17-12-2025 14:00 - 15:00 4819 MW

17-12-2025 15:00 - 16:00 4819 MW

17-12-2025 16:00 - 17:00 4819 MW

17-12-2025 17:00 - 18:00 4819 MW

17-12-2025 18:00 - 19:00 4819 MW

17-12-2025 19:00 - 20:00 4819 MW

17-12-2025 20:00 - 21:00 4819 MW

17-12-2025 21:00 - 22:00 4819 MW

17-12-2025 22:00 - 23:00 4819 MW

17-12-2025 23:00 - 24:00 4819 MW

5. Amount of LTTR remaining after curtailment:

17-12-2025 00:00 - 01:00 4556 MW

17-12-2025 01:00 - 02:00 4556 MW

17-12-2025 02:00 - 03:00 4556 MW

17-12-2025 03:00 - 04:00 4556 MW

17-12-2025 04:00 - 05:00 4556 MW

17-12-2025 05:00 - 06:00 4556 MW

17-12-2025 06:00 - 07:00 4556 MW

17-12-2025 07:00 - 08:00 4556 MW

17-12-2025 08:00 - 09:00 4556 MW

17-12-2025 09:00 - 10:00 4556 MW

17-12-2025 10:00 - 11:00 4556 MW

17-12-2025 11:00 - 12:00 4556 MW

17-12-2025 12:00 - 13:00 4556 MW

17-12-2025 13:00 - 14:00 4556 MW

17-12-2025 14:00 - 15:00 4556 MW

17-12-2025 15:00 - 16:00 4556 MW

17-12-2025 16:00 - 17:00 4556 MW

17-12-2025 17:00 - 18:00 4556 MW

17-12-2025 18:00 - 19:00 4556 MW

17-12-2025 19:00 - 20:00 4556 MW

17-12-2025 20:00 - 21:00 4556 MW

17-12-2025 21:00 - 22:00 4556 MW

17-12-2025 22:00 - 23:00 4556 MW

17-12-2025 23:00 - 24:00 4556 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.

Capacity Curtailment on the IT-AT border for delivery period 17-12-2025

by JAO

1. TSO(s)*:

APG

2. Identification of affected Long Term Transmission Rights:

IT-AT

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

17-12-2025 00:00 - 01:00 81 MW

17-12-2025 01:00 - 02:00 81 MW

17-12-2025 02:00 - 03:00 81 MW

17-12-2025 03:00 - 04:00 81 MW

17-12-2025 04:00 - 05:00 81 MW

17-12-2025 05:00 - 06:00 81 MW

17-12-2025 06:00 - 07:00 81 MW

17-12-2025 07:00 - 08:00 81 MW

17-12-2025 08:00 - 09:00 81 MW

17-12-2025 09:00 - 10:00 81 MW

17-12-2025 10:00 - 11:00 81 MW

17-12-2025 11:00 - 12:00 81 MW

17-12-2025 12:00 - 13:00 81 MW

17-12-2025 13:00 - 14:00 81 MW

17-12-2025 14:00 - 15:00 81 MW

17-12-2025 15:00 - 16:00 81 MW

17-12-2025 16:00 - 17:00 81 MW

17-12-2025 17:00 - 18:00 81 MW

17-12-2025 18:00 - 19:00 81 MW

17-12-2025 19:00 - 20:00 81 MW

17-12-2025 20:00 - 21:00 81 MW

17-12-2025 21:00 - 22:00 81 MW

17-12-2025 22:00 - 23:00 81 MW

17-12-2025 23:00 - 24:00 81 MW

5. Amount of LTTR remaining after curtailment:

17-12-2025 00:00 - 01:00 11 MW

17-12-2025 01:00 - 02:00 11 MW

17-12-2025 02:00 - 03:00 11 MW

17-12-2025 03:00 - 04:00 11 MW

17-12-2025 04:00 - 05:00 11 MW

17-12-2025 05:00 - 06:00 11 MW

17-12-2025 06:00 - 07:00 11 MW

17-12-2025 07:00 - 08:00 11 MW

17-12-2025 08:00 - 09:00 11 MW

17-12-2025 09:00 - 10:00 11 MW

17-12-2025 10:00 - 11:00 11 MW

17-12-2025 11:00 - 12:00 11 MW

17-12-2025 12:00 - 13:00 11 MW

17-12-2025 13:00 - 14:00 11 MW

17-12-2025 14:00 - 15:00 11 MW

17-12-2025 15:00 - 16:00 11 MW

17-12-2025 16:00 - 17:00 11 MW

17-12-2025 17:00 - 18:00 26 MW

17-12-2025 18:00 - 19:00 26 MW

17-12-2025 19:00 - 20:00 26 MW

17-12-2025 20:00 - 21:00 26 MW

17-12-2025 21:00 - 22:00 26 MW

17-12-2025 22:00 - 23:00 26 MW

17-12-2025 23:00 - 24:00 57 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.

Capacity Curtailment on the AT-IT border for delivery period 17-12-2025

by JAO

1. TSO(s)*:

APG

2. Identification of affected Long Term Transmission Rights:

AT-IT

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

17-12-2025 00:00 - 01:00 204 MW

17-12-2025 01:00 - 02:00 204 MW

17-12-2025 02:00 - 03:00 204 MW

17-12-2025 03:00 - 04:00 204 MW

17-12-2025 04:00 - 05:00 204 MW

17-12-2025 05:00 - 06:00 204 MW

17-12-2025 06:00 - 07:00 204 MW

17-12-2025 07:00 - 08:00 204 MW

17-12-2025 08:00 - 09:00 204 MW

17-12-2025 09:00 - 10:00 204 MW

17-12-2025 10:00 - 11:00 204 MW

17-12-2025 11:00 - 12:00 204 MW

17-12-2025 12:00 - 13:00 204 MW

17-12-2025 13:00 - 14:00 204 MW

17-12-2025 14:00 - 15:00 204 MW

17-12-2025 15:00 - 16:00 204 MW

17-12-2025 16:00 - 17:00 204 MW

17-12-2025 17:00 - 18:00 204 MW

17-12-2025 18:00 - 19:00 204 MW

17-12-2025 19:00 - 20:00 204 MW

17-12-2025 20:00 - 21:00 204 MW

17-12-2025 21:00 - 22:00 204 MW

17-12-2025 22:00 - 23:00 204 MW

17-12-2025 23:00 - 24:00 204 MW

5. Amount of LTTR remaining after curtailment:

17-12-2025 00:00 - 01:00 47 MW

17-12-2025 01:00 - 02:00 47 MW

17-12-2025 02:00 - 03:00 47 MW

17-12-2025 03:00 - 04:00 47 MW

17-12-2025 04:00 - 05:00 47 MW

17-12-2025 05:00 - 06:00 47 MW

17-12-2025 06:00 - 07:00 47 MW

17-12-2025 07:00 - 08:00 47 MW

17-12-2025 08:00 - 09:00 47 MW

17-12-2025 09:00 - 10:00 47 MW

17-12-2025 10:00 - 11:00 47 MW

17-12-2025 11:00 - 12:00 47 MW

17-12-2025 12:00 - 13:00 47 MW

17-12-2025 13:00 - 14:00 47 MW

17-12-2025 14:00 - 15:00 47 MW

17-12-2025 15:00 - 16:00 47 MW

17-12-2025 16:00 - 17:00 47 MW

17-12-2025 17:00 - 18:00 134 MW

17-12-2025 18:00 - 19:00 134 MW

17-12-2025 19:00 - 20:00 134 MW

17-12-2025 20:00 - 21:00 134 MW

17-12-2025 21:00 - 22:00 134 MW

17-12-2025 22:00 - 23:00 134 MW

17-12-2025 23:00 - 24:00 128 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

Website Maintenance on 15/12/2025

by JAO

We would like to inform you that JAO website is scheduled for technical maintenance on the 15/12/2025 between 12:00 to 13:00 CET.

Please note that the website will be unavailable for approximatively 10 minutes during this time.

We apologize for any inconvenience this may cause.

Kind regards,

JAO Operations

Capacity Curtailment on the GR-IT border for delivery period 16-12-2025

by JAO

1. TSO(s)*:

TERNA

2. Identification of affected Long Term Transmission Rights:

GR-IT

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

16-12-2025 00:00 - 01:00 500 MW

16-12-2025 01:00 - 02:00 500 MW

16-12-2025 02:00 - 03:00 500 MW

16-12-2025 03:00 - 04:00 500 MW

16-12-2025 04:00 - 05:00 500 MW

16-12-2025 05:00 - 06:00 500 MW

16-12-2025 06:00 - 07:00 500 MW

16-12-2025 07:00 - 08:00 500 MW

16-12-2025 08:00 - 09:00 500 MW

16-12-2025 09:00 - 10:00 500 MW

16-12-2025 10:00 - 11:00 500 MW

16-12-2025 11:00 - 12:00 500 MW

16-12-2025 12:00 - 13:00 500 MW

16-12-2025 13:00 - 14:00 500 MW

16-12-2025 14:00 - 15:00 500 MW

16-12-2025 15:00 - 16:00 500 MW

5. Amount of LTTR remaining after curtailment:

16-12-2025 00:00 - 01:00 0 MW

16-12-2025 01:00 - 02:00 0 MW

16-12-2025 02:00 - 03:00 0 MW

16-12-2025 03:00 - 04:00 0 MW

16-12-2025 04:00 - 05:00 0 MW

16-12-2025 05:00 - 06:00 0 MW

16-12-2025 06:00 - 07:00 0 MW

16-12-2025 07:00 - 08:00 0 MW

16-12-2025 08:00 - 09:00 0 MW

16-12-2025 09:00 - 10:00 0 MW

16-12-2025 10:00 - 11:00 0 MW

16-12-2025 11:00 - 12:00 0 MW

16-12-2025 12:00 - 13:00 0 MW

16-12-2025 13:00 - 14:00 0 MW

16-12-2025 14:00 - 15:00 0 MW

16-12-2025 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*:

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 IT-GR border for delivery period 16-12-2025

by JAO

1. TSO(s)*:

TERNA

2. Identification of affected Long Term Transmission Rights:

IT-GR

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

16-12-2025 00:00 - 01:00 500 MW

16-12-2025 01:00 - 02:00 500 MW

16-12-2025 02:00 - 03:00 500 MW

16-12-2025 03:00 - 04:00 500 MW

16-12-2025 04:00 - 05:00 500 MW

16-12-2025 05:00 - 06:00 500 MW

16-12-2025 06:00 - 07:00 500 MW

16-12-2025 07:00 - 08:00 500 MW

16-12-2025 08:00 - 09:00 500 MW

16-12-2025 09:00 - 10:00 500 MW

16-12-2025 10:00 - 11:00 500 MW

16-12-2025 11:00 - 12:00 500 MW

16-12-2025 12:00 - 13:00 500 MW

16-12-2025 13:00 - 14:00 500 MW

16-12-2025 14:00 - 15:00 500 MW

16-12-2025 15:00 - 16:00 500 MW

5. Amount of LTTR remaining after curtailment:

16-12-2025 00:00 - 01:00 0 MW

16-12-2025 01:00 - 02:00 0 MW

16-12-2025 02:00 - 03:00 0 MW

16-12-2025 03:00 - 04:00 0 MW

16-12-2025 04:00 - 05:00 0 MW

16-12-2025 05:00 - 06:00 0 MW

16-12-2025 06:00 - 07:00 0 MW

16-12-2025 07:00 - 08:00 0 MW

16-12-2025 08:00 - 09:00 0 MW

16-12-2025 09:00 - 10:00 0 MW

16-12-2025 10:00 - 11:00 0 MW

16-12-2025 11:00 - 12:00 0 MW

16-12-2025 12:00 - 13:00 0 MW

16-12-2025 13:00 - 14:00 0 MW

16-12-2025 14:00 - 15:00 0 MW

16-12-2025 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*:

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.

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

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