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 ES-FR border for delivery period 14-07-2026

by JAO

1. TSO(s)*:

RTE-TSO

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:

14-07-2026 11:00 - 12:00 1280 MW

14-07-2026 12:00 - 13:00 1280 MW

14-07-2026 13:00 - 14:00 1280 MW

14-07-2026 14:00 - 15:00 1280 MW

14-07-2026 18:00 - 19:00 1280 MW

14-07-2026 19:00 - 20:00 1280 MW

14-07-2026 20:00 - 21:00 1280 MW

14-07-2026 21:00 - 22:00 1280 MW

14-07-2026 22:00 - 23:00 1280 MW

14-07-2026 23:00 - 24:00 1280 MW

5. Amount of LTTR remaining after curtailment:

14-07-2026 11:00 - 12:00 670 MW

14-07-2026 12:00 - 13:00 670 MW

14-07-2026 13:00 - 14:00 670 MW

14-07-2026 14:00 - 15:00 670 MW

14-07-2026 18:00 - 19:00 776 MW

14-07-2026 19:00 - 20:00 776 MW

14-07-2026 20:00 - 21:00 776 MW

14-07-2026 21:00 - 22:00 632 MW

14-07-2026 22:00 - 23:00 629 MW

14-07-2026 23:00 - 24:00 776 MW

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

   14/07/2026

      11:00-12:00 Network Security

      12:00-13:00 Network Security

      13:00-14:00 Network Security

      14:00-15:00 Network Security

      18:00-19:00 Network Security

      19:00-20:00 Network Security

      20:00-21:00 Network Security

      21:00-22:00 Network Security

      22:00-23:00 Network Security

      23:00-24:00 Network Security

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

Capacity Curtailment on the ES-FR border for delivery period 13-07-2026

by JAO

1. TSO(s)*:

RTE-TSO

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:

13-07-2026 21:00 - 22:00 1280 MW

13-07-2026 22:00 - 23:00 1280 MW

5. Amount of LTTR remaining after curtailment:

13-07-2026 21:00 - 22:00 697 MW

13-07-2026 22:00 - 23:00 796 MW

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

   13/07/2026

      21:00-22:00 Network Security

      22:00-23:00 Network Security

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

Capacity Curtailment on the HU-AT border for delivery period 12-07-2026

by JAO

1. TSO(s)*:

APG

2. Identification of affected Long Term Transmission Rights:

HU-AT

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

12-07-2026 09:00 - 10:00 260 MW

12-07-2026 10:00 - 11:00 260 MW

12-07-2026 11:00 - 12:00 260 MW

12-07-2026 12:00 - 13:00 260 MW

12-07-2026 13:00 - 14:00 260 MW

5. Amount of LTTR remaining after curtailment:

12-07-2026 09:00 - 10:00 225 MW

12-07-2026 10:00 - 11:00 225 MW

12-07-2026 11:00 - 12:00 224 MW

12-07-2026 12:00 - 13:00 214 MW

12-07-2026 13:00 - 14:00 217 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-DE border for delivery period 12-07-2026

by JAO

1. TSO(s)*:

APG

2. Identification of affected Long Term Transmission Rights:

AT-DE

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

12-07-2026 09:00 - 10:00 3819 MW

12-07-2026 10:00 - 11:00 3819 MW

12-07-2026 11:00 - 12:00 3819 MW

12-07-2026 12:00 - 13:00 3819 MW

12-07-2026 13:00 - 14:00 3819 MW

5. Amount of LTTR remaining after curtailment:

12-07-2026 09:00 - 10:00 2614 MW

12-07-2026 10:00 - 11:00 2857 MW

12-07-2026 11:00 - 12:00 2922 MW

12-07-2026 12:00 - 13:00 2900 MW

12-07-2026 13:00 - 14:00 2813 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-CZ border for delivery period 12-07-2026

by JAO

1. TSO(s)*:

APG

2. Identification of affected Long Term Transmission Rights:

AT-CZ

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

12-07-2026 09:00 - 10:00 350 MW

12-07-2026 10:00 - 11:00 350 MW

12-07-2026 11:00 - 12:00 350 MW

12-07-2026 12:00 - 13:00 350 MW

12-07-2026 13:00 - 14:00 350 MW

5. Amount of LTTR remaining after curtailment:

12-07-2026 09:00 - 10:00 155 MW

12-07-2026 10:00 - 11:00 154 MW

12-07-2026 11:00 - 12:00 174 MW

12-07-2026 12:00 - 13:00 171 MW

12-07-2026 13:00 - 14:00 173 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 SI-AT border for delivery period 12-07-2026

by JAO

1. TSO(s)*:

APG

2. Identification of affected Long Term Transmission Rights:

SI-AT

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

12-07-2026 09:00 - 10:00 310 MW

12-07-2026 10:00 - 11:00 310 MW

12-07-2026 11:00 - 12:00 310 MW

12-07-2026 12:00 - 13:00 310 MW

12-07-2026 13:00 - 14:00 310 MW

5. Amount of LTTR remaining after curtailment:

12-07-2026 09:00 - 10:00 151 MW

12-07-2026 10:00 - 11:00 166 MW

12-07-2026 11:00 - 12:00 186 MW

12-07-2026 12:00 - 13:00 171 MW

12-07-2026 13:00 - 14:00 186 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.

FR–IT: Updated Public Consultation on the Proposed Implementation of Preliminary Yearly Auctions for LTTRs

by JAO

With reference to the previous message regarding the FR–IT: Public Consultation on the Proposed Implementation of Preliminary Yearly Auctions for LTTRs, please note that, upon TSO request, an updated version of the FR–IT Public Consultation document has been provided.

Please disregard the previously attached document and refer only to the updated version attached to this message.

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!