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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

Capacity Curtailment on the EE-LV border for delivery period 03-07-2025

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:

03-07-2025 01:00 - 02:00 500 MW

03-07-2025 06:00 - 07:00 500 MW

5. Amount of LTTR remaining after curtailment:

03-07-2025 01:00 - 02:00 464 MW

03-07-2025 06:00 - 07:00 464 MW

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

Please see the latest day-ahead net transfer capacity values published on the Nord Pool UMM Platform under "Unavailability of electricity facilities: Transmission EE → LV" at :

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

as well as the capacity already allocated on the Baltic Balancing Market for balancing capacity sharing at:

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.

Capacity Curtailment on the IT-AT border for delivery period 03-07-2025

by JAO

1. TSO(s)*:

TERNA

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:

03-07-2025 19:00 - 20:00 79 MW

03-07-2025 20:00 - 21:00 79 MW

03-07-2025 21:00 - 22:00 79 MW

5. Amount of LTTR remaining after curtailment:

03-07-2025 19:00 - 20:00 11 MW

03-07-2025 20:00 - 21:00 11 MW

03-07-2025 21:00 - 22:00 11 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

Capacity Curtailment on the IT-FR border for delivery period 03-07-2025

by JAO

1. TSO(s)*:

TERNA

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:

03-07-2025 18:00 - 19:00 1870 MW

03-07-2025 19:00 - 20:00 1870 MW

03-07-2025 20:00 - 21:00 1870 MW

03-07-2025 21:00 - 22:00 1870 MW

03-07-2025 22:00 - 23:00 1870 MW

5. Amount of LTTR remaining after curtailment:

03-07-2025 18:00 - 19:00 1429 MW

03-07-2025 19:00 - 20:00 189 MW

03-07-2025 20:00 - 21:00 189 MW

03-07-2025 21:00 - 22:00 189 MW

03-07-2025 22:00 - 23:00 1428 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

 

Capacity Curtailment on the SI-IT border for delivery period 03-07-2025

by JAO

1. TSO(s)*:

TERNA

2. Identification of affected Long Term Transmission Rights:

SI-IT

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

03-07-2025 23:00 - 24:00 248 MW

5. Amount of LTTR remaining after curtailment:

03-07-2025 23:00 - 24:00 216 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

Capacity Curtailment on the IT-SI border for delivery period 03-07-2025

by JAO

1. TSO(s)*:

TERNA

2. Identification of affected Long Term Transmission Rights:

IT-SI

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

03-07-2025 19:00 - 20:00 315 MW

03-07-2025 20:00 - 21:00 315 MW

03-07-2025 21:00 - 22:00 315 MW

5. Amount of LTTR remaining after curtailment:

03-07-2025 19:00 - 20:00 0 MW

03-07-2025 20:00 - 21:00 0 MW

03-07-2025 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*:

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

UPDATE: Cancellation of Capacity Curtailment on the IT-AT border for delivery period 03-07-2025

by JAO

1. TSO(s)*:

APG

2. Identification of affected Long Term Transmission Rights:

IT-AT

3. Triggering event:

Curtailment due to Force Majeure

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

03-07-2025 00:00 - 01:00 79 MW

03-07-2025 01:00 - 02:00 79 MW

03-07-2025 02:00 - 03:00 79 MW

03-07-2025 03:00 - 04:00 79 MW

03-07-2025 04:00 - 05:00 79 MW

03-07-2025 05:00 - 06:00 79 MW

03-07-2025 06:00 - 07:00 79 MW

03-07-2025 07:00 - 08:00 79 MW

03-07-2025 08:00 - 09:00 79 MW

03-07-2025 09:00 - 10:00 79 MW

03-07-2025 10:00 - 11:00 79 MW

03-07-2025 11:00 - 12:00 79 MW

03-07-2025 12:00 - 13:00 79 MW

03-07-2025 13:00 - 14:00 79 MW

03-07-2025 14:00 - 15:00 79 MW

03-07-2025 15:00 - 16:00 79 MW

03-07-2025 16:00 - 17:00 79 MW

03-07-2025 17:00 - 18:00 79 MW

03-07-2025 18:00 - 19:00 79 MW

03-07-2025 19:00 - 20:00 79 MW

03-07-2025 20:00 - 21:00 79 MW

03-07-2025 21:00 - 22:00 79 MW

03-07-2025 22:00 - 23:00 79 MW

03-07-2025 23:00 - 24:00 79 MW

5. Amount of LTTR remaining after curtailment:

03-07-2025 00:00 - 01:00 59 MW

03-07-2025 01:00 - 02:00 59 MW

03-07-2025 02:00 - 03:00 59 MW

03-07-2025 03:00 - 04:00 59 MW

03-07-2025 04:00 - 05:00 59 MW

03-07-2025 05:00 - 06:00 59 MW

03-07-2025 06:00 - 07:00 59 MW

03-07-2025 07:00 - 08:00 59 MW

03-07-2025 08:00 - 09:00 59 MW

03-07-2025 09:00 - 10:00 59 MW

03-07-2025 10:00 - 11:00 59 MW

03-07-2025 11:00 - 12:00 59 MW

03-07-2025 12:00 - 13:00 59 MW

03-07-2025 13:00 - 14:00 59 MW

03-07-2025 14:00 - 15:00 59 MW

03-07-2025 15:00 - 16:00 59 MW

03-07-2025 16:00 - 17:00 59 MW

03-07-2025 17:00 - 18:00 59 MW

03-07-2025 18:00 - 19:00 59 MW

03-07-2025 19:00 - 20:00 59 MW

03-07-2025 20:00 - 21:00 59 MW

03-07-2025 21:00 - 22:00 59 MW

03-07-2025 22:00 - 23:00 59 MW

03-07-2025 23:00 - 24:00 59 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.

UPDATE: Cancellation of Capacity Curtailment on the AT-IT border for delivery period 03-07-2025

by JAO

1. TSO(s)*:

APG

2. Identification of affected Long Term Transmission Rights:

AT-IT

3. Triggering event:

Curtailment due to Force Majeure

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

03-07-2025 00:00 - 01:00 250 MW

03-07-2025 01:00 - 02:00 250 MW

03-07-2025 02:00 - 03:00 250 MW

03-07-2025 03:00 - 04:00 250 MW

03-07-2025 04:00 - 05:00 250 MW

03-07-2025 05:00 - 06:00 250 MW

03-07-2025 06:00 - 07:00 250 MW

03-07-2025 07:00 - 08:00 250 MW

03-07-2025 08:00 - 09:00 250 MW

03-07-2025 09:00 - 10:00 250 MW

03-07-2025 10:00 - 11:00 250 MW

03-07-2025 11:00 - 12:00 250 MW

03-07-2025 12:00 - 13:00 250 MW

03-07-2025 13:00 - 14:00 250 MW

03-07-2025 14:00 - 15:00 250 MW

03-07-2025 15:00 - 16:00 250 MW

03-07-2025 16:00 - 17:00 250 MW

03-07-2025 17:00 - 18:00 250 MW

03-07-2025 18:00 - 19:00 250 MW

03-07-2025 19:00 - 20:00 250 MW

03-07-2025 20:00 - 21:00 250 MW

03-07-2025 21:00 - 22:00 250 MW

03-07-2025 22:00 - 23:00 250 MW

03-07-2025 23:00 - 24:00 250 MW

5. Amount of LTTR remaining after curtailment:

03-07-2025 00:00 - 01:00 193 MW

03-07-2025 01:00 - 02:00 193 MW

03-07-2025 02:00 - 03:00 193 MW

03-07-2025 03:00 - 04:00 193 MW

03-07-2025 04:00 - 05:00 193 MW

03-07-2025 05:00 - 06:00 193 MW

03-07-2025 06:00 - 07:00 193 MW

03-07-2025 07:00 - 08:00 193 MW

03-07-2025 08:00 - 09:00 193 MW

03-07-2025 09:00 - 10:00 193 MW

03-07-2025 10:00 - 11:00 193 MW

03-07-2025 11:00 - 12:00 193 MW

03-07-2025 12:00 - 13:00 193 MW

03-07-2025 13:00 - 14:00 193 MW

03-07-2025 14:00 - 15:00 193 MW

03-07-2025 15:00 - 16:00 193 MW

03-07-2025 16:00 - 17:00 193 MW

03-07-2025 17:00 - 18:00 193 MW

03-07-2025 18:00 - 19:00 193 MW

03-07-2025 19:00 - 20:00 193 MW

03-07-2025 20:00 - 21:00 193 MW

03-07-2025 21:00 - 22:00 193 MW

03-07-2025 22:00 - 23:00 193 MW

03-07-2025 23:00 - 24:00 193 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.

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Frequently asked questions

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

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