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 FR-CH border for delivery period 05-10-2026

by JAO

1. TSO(s)*:

RTE, SWISSGRID

2. Identification of affected Long Term Transmission Rights:

FR-CH

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:

05-10-2026 00:00 - 01:00 370 MW

05-10-2026 01:00 - 02:00 370 MW

05-10-2026 02:00 - 03:00 370 MW

05-10-2026 03:00 - 04:00 370 MW

05-10-2026 04:00 - 05:00 370 MW

05-10-2026 05:00 - 06:00 370 MW

05-10-2026 06:00 - 07:00 370 MW

05-10-2026 07:00 - 08:00 370 MW

05-10-2026 08:00 - 09:00 370 MW

05-10-2026 09:00 - 10:00 370 MW

05-10-2026 10:00 - 11:00 370 MW

05-10-2026 11:00 - 12:00 370 MW

05-10-2026 12:00 - 13:00 370 MW

05-10-2026 13:00 - 14:00 370 MW

05-10-2026 14:00 - 15:00 370 MW

05-10-2026 15:00 - 16:00 370 MW

05-10-2026 16:00 - 17:00 370 MW

05-10-2026 17:00 - 18:00 370 MW

05-10-2026 18:00 - 19:00 370 MW

05-10-2026 19:00 - 20:00 370 MW

05-10-2026 20:00 - 21:00 370 MW

05-10-2026 21:00 - 22:00 370 MW

05-10-2026 22:00 - 23:00 370 MW

05-10-2026 23:00 - 24:00 370 MW

5. Amount of LTTR remaining after curtailment:

05-10-2026 00:00 - 01:00 0 MW

05-10-2026 01:00 - 02:00 0 MW

05-10-2026 02:00 - 03:00 0 MW

05-10-2026 03:00 - 04:00 0 MW

05-10-2026 04:00 - 05:00 0 MW

05-10-2026 05:00 - 06:00 0 MW

05-10-2026 06:00 - 07:00 0 MW

05-10-2026 07:00 - 08:00 0 MW

05-10-2026 08:00 - 09:00 0 MW

05-10-2026 09:00 - 10:00 0 MW

05-10-2026 10:00 - 11:00 0 MW

05-10-2026 11:00 - 12:00 0 MW

05-10-2026 12:00 - 13:00 0 MW

05-10-2026 13:00 - 14:00 0 MW

05-10-2026 14:00 - 15:00 0 MW

05-10-2026 15:00 - 16:00 0 MW

05-10-2026 16:00 - 17:00 0 MW

05-10-2026 17:00 - 18:00 0 MW

05-10-2026 18:00 - 19:00 0 MW

05-10-2026 19:00 - 20:00 0 MW

05-10-2026 20:00 - 21:00 0 MW

05-10-2026 21:00 - 22:00 0 MW

05-10-2026 22:00 - 23:00 0 MW

05-10-2026 23:00 - 24:00 0 MW

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

   05/10/2026

      00:00-01:00 Network Security

      01:00-02:00 Network Security

      02:00-03:00 Network Security

      03:00-04:00 Network Security

      04:00-05:00 Network Security

      05:00-06:00 Network Security

      06:00-07:00 Network Security

      07:00-08:00 Network Security

      08:00-09:00 Network Security

      09:00-10:00 Network Security

      10:00-11:00 Network Security

      11:00-12:00 Network Security

      12:00-13:00 Network Security

      13:00-14:00 Network Security

      14:00-15:00 Network Security

      15:00-16:00 Network Security

      16:00-17:00 Network Security

      17:00-18:00 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 IF1-GB-FR border for delivery period 17-10-2026

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:

17-10-2026 00:00 - 01:00 1299 MW

17-10-2026 01:00 - 02:00 1299 MW

17-10-2026 02:00 - 03:00 1299 MW

17-10-2026 03:00 - 04:00 1299 MW

17-10-2026 04:00 - 05:00 1299 MW

17-10-2026 05:00 - 06:00 1299 MW

17-10-2026 06:00 - 07:00 1299 MW

17-10-2026 07:00 - 08:00 1299 MW

17-10-2026 08:00 - 09:00 1299 MW

17-10-2026 09:00 - 10:00 1299 MW

17-10-2026 10:00 - 11:00 1299 MW

17-10-2026 11:00 - 12:00 1299 MW

17-10-2026 12:00 - 13:00 1299 MW

17-10-2026 13:00 - 14:00 1299 MW

17-10-2026 14:00 - 15:00 1299 MW

17-10-2026 15:00 - 16:00 1299 MW

17-10-2026 16:00 - 17:00 1299 MW

17-10-2026 17:00 - 18:00 1299 MW

17-10-2026 18:00 - 19:00 1299 MW

17-10-2026 19:00 - 20:00 1299 MW

17-10-2026 20:00 - 21:00 1299 MW

17-10-2026 21:00 - 22:00 1299 MW

17-10-2026 22:00 - 23:00 1299 MW

17-10-2026 23:00 - 24:00 1299 MW

5. Amount of LTTR remaining after curtailment:

17-10-2026 00:00 - 01:00 957 MW

17-10-2026 01:00 - 02:00 957 MW

17-10-2026 02:00 - 03:00 957 MW

17-10-2026 03:00 - 04:00 957 MW

17-10-2026 04:00 - 05:00 957 MW

17-10-2026 05:00 - 06:00 957 MW

17-10-2026 06:00 - 07:00 957 MW

17-10-2026 07:00 - 08:00 957 MW

17-10-2026 08:00 - 09:00 957 MW

17-10-2026 09:00 - 10:00 957 MW

17-10-2026 10:00 - 11:00 957 MW

17-10-2026 11:00 - 12:00 957 MW

17-10-2026 12:00 - 13:00 957 MW

17-10-2026 13:00 - 14:00 957 MW

17-10-2026 14:00 - 15:00 957 MW

17-10-2026 15:00 - 16:00 957 MW

17-10-2026 16:00 - 17:00 957 MW

17-10-2026 17:00 - 18:00 957 MW

17-10-2026 18:00 - 19:00 957 MW

17-10-2026 19:00 - 20:00 957 MW

17-10-2026 20:00 - 21:00 957 MW

17-10-2026 21:00 - 22:00 957 MW

17-10-2026 22:00 - 23:00 957 MW

17-10-2026 23:00 - 24:00 957 MW

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

Thermal limits

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

Capacity limitation due to planned maintenance

Capacity Curtailment on the IT-ME border for delivery period 05-10-2026

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:

05-10-2026 17:00 - 18:00 400 MW

05-10-2026 18:00 - 19:00 400 MW

05-10-2026 19:00 - 20:00 400 MW

05-10-2026 20:00 - 21:00 400 MW

05-10-2026 21:00 - 22:00 400 MW

5. Amount of LTTR remaining after curtailment:

05-10-2026 17:00 - 18:00 0 MW

05-10-2026 18:00 - 19:00 0 MW

05-10-2026 19:00 - 20:00 0 MW

05-10-2026 20:00 - 21:00 0 MW

05-10-2026 21:00 - 22:00 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

Capacity Curtailment on the SI-AT border for delivery period 04-10-2026

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:

04-10-2026 08:00 - 09:00 400 MW

04-10-2026 09:00 - 10:00 400 MW

04-10-2026 10:00 - 11:00 400 MW

04-10-2026 11:00 - 12:00 400 MW

04-10-2026 12:00 - 13:00 400 MW

04-10-2026 13:00 - 14:00 400 MW

04-10-2026 14:00 - 15:00 400 MW

04-10-2026 15:00 - 16:00 400 MW

5. Amount of LTTR remaining after curtailment:

04-10-2026 08:00 - 09:00 169 MW

04-10-2026 09:00 - 10:00 177 MW

04-10-2026 10:00 - 11:00 178 MW

04-10-2026 11:00 - 12:00 177 MW

04-10-2026 12:00 - 13:00 177 MW

04-10-2026 13:00 - 14:00 192 MW

04-10-2026 14:00 - 15:00 193 MW

04-10-2026 15:00 - 16:00 192 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 HU-AT border for delivery period 04-10-2026

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:

04-10-2026 08:00 - 09:00 320 MW

04-10-2026 09:00 - 10:00 320 MW

04-10-2026 10:00 - 11:00 320 MW

04-10-2026 11:00 - 12:00 320 MW

04-10-2026 12:00 - 13:00 320 MW

04-10-2026 13:00 - 14:00 320 MW

04-10-2026 14:00 - 15:00 320 MW

04-10-2026 15:00 - 16:00 320 MW

5. Amount of LTTR remaining after curtailment:

04-10-2026 08:00 - 09:00 213 MW

04-10-2026 09:00 - 10:00 217 MW

04-10-2026 10:00 - 11:00 213 MW

04-10-2026 11:00 - 12:00 201 MW

04-10-2026 12:00 - 13:00 190 MW

04-10-2026 13:00 - 14:00 196 MW

04-10-2026 14:00 - 15:00 196 MW

04-10-2026 15:00 - 16:00 232 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 04-10-2026

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:

04-10-2026 08:00 - 09:00 350 MW

04-10-2026 09:00 - 10:00 350 MW

04-10-2026 10:00 - 11:00 350 MW

04-10-2026 11:00 - 12:00 350 MW

04-10-2026 12:00 - 13:00 350 MW

04-10-2026 13:00 - 14:00 350 MW

04-10-2026 14:00 - 15:00 350 MW

04-10-2026 15:00 - 16:00 350 MW

5. Amount of LTTR remaining after curtailment:

04-10-2026 08:00 - 09:00 149 MW

04-10-2026 09:00 - 10:00 109 MW

04-10-2026 10:00 - 11:00 121 MW

04-10-2026 11:00 - 12:00 98 MW

04-10-2026 12:00 - 13:00 98 MW

04-10-2026 13:00 - 14:00 102 MW

04-10-2026 14:00 - 15:00 116 MW

04-10-2026 15:00 - 16:00 102 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 DE-AT border for delivery period 04-10-2026

by JAO

Dear Market Participants, 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:

04-10-2026 18:00 - 19:00 4820 MW

04-10-2026 19:00 - 20:00 4820 MW

5. Amount of LTTR remaining after curtailment:

04-10-2026 18:00 - 19:00 4558 MW

04-10-2026 19:00 - 20:00 4414 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.

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!