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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.

 

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

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Capacity Curtailment on the NSL-GB-N2 border for delivery period 31-10-2026

by JAO

1. TSO(s)*:

National Grid Interconnectors Limited (NGIC) and Statnett

2. Identification of affected Long Term Transmission Rights:

NSL-GB-N2

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

31-10-2026 16:00 - 17:00 50 MW

31-10-2026 17:00 - 18:00 50 MW

31-10-2026 18:00 - 19:00 50 MW

31-10-2026 19:00 - 20:00 50 MW

31-10-2026 20:00 - 21:00 50 MW

31-10-2026 21:00 - 22:00 50 MW

31-10-2026 22:00 - 23:00 50 MW

5. Amount of LTTR remaining after curtailment:

31-10-2026 16:00 - 17:00 0 MW

31-10-2026 17:00 - 18:00 0 MW

31-10-2026 18:00 - 19:00 0 MW

31-10-2026 19:00 - 20:00 0 MW

31-10-2026 20:00 - 21:00 0 MW

31-10-2026 21:00 - 22:00 0 MW

31-10-2026 22:00 - 23:00 0 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)*?

NTC restrictions

Capacity Curtailment on the IT-GR border for delivery period 31-10-2026

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:

31-10-2026 00:00 - 01:00 500 MW

31-10-2026 01:00 - 02:00 500 MW

31-10-2026 02:00 - 03:00 500 MW

31-10-2026 03:00 - 04:00 500 MW

31-10-2026 04:00 - 05:00 500 MW

31-10-2026 05:00 - 06:00 500 MW

31-10-2026 06:00 - 07:00 500 MW

31-10-2026 07:00 - 08:00 500 MW

31-10-2026 08:00 - 09:00 500 MW

31-10-2026 09:00 - 10:00 500 MW

31-10-2026 10:00 - 11:00 500 MW

31-10-2026 11:00 - 12:00 500 MW

31-10-2026 12:00 - 13:00 500 MW

31-10-2026 13:00 - 14:00 500 MW

31-10-2026 14:00 - 15:00 500 MW

31-10-2026 15:00 - 16:00 500 MW

31-10-2026 16:00 - 17:00 500 MW

31-10-2026 17:00 - 18:00 500 MW

31-10-2026 18:00 - 19:00 500 MW

31-10-2026 19:00 - 20:00 500 MW

31-10-2026 20:00 - 21:00 500 MW

31-10-2026 21:00 - 22:00 500 MW

31-10-2026 22:00 - 23:00 500 MW

31-10-2026 23:00 - 24:00 500 MW

5. Amount of LTTR remaining after curtailment:

31-10-2026 00:00 - 01:00 0 MW

31-10-2026 01:00 - 02:00 0 MW

31-10-2026 02:00 - 03:00 0 MW

31-10-2026 03:00 - 04:00 0 MW

31-10-2026 04:00 - 05:00 0 MW

31-10-2026 05:00 - 06:00 0 MW

31-10-2026 06:00 - 07:00 0 MW

31-10-2026 07:00 - 08:00 0 MW

31-10-2026 08:00 - 09:00 0 MW

31-10-2026 09:00 - 10:00 0 MW

31-10-2026 10:00 - 11:00 0 MW

31-10-2026 11:00 - 12:00 0 MW

31-10-2026 12:00 - 13:00 0 MW

31-10-2026 13:00 - 14:00 0 MW

31-10-2026 14:00 - 15:00 0 MW

31-10-2026 15:00 - 16:00 0 MW

31-10-2026 16:00 - 17:00 0 MW

31-10-2026 17:00 - 18:00 0 MW

31-10-2026 18:00 - 19:00 0 MW

31-10-2026 19:00 - 20:00 0 MW

31-10-2026 20:00 - 21:00 0 MW

31-10-2026 21:00 - 22:00 0 MW

31-10-2026 22:00 - 23:00 0 MW

31-10-2026 23:00 - 24:00 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 GR-IT border for delivery period 31-10-2026

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:

31-10-2026 00:00 - 01:00 500 MW

31-10-2026 01:00 - 02:00 500 MW

31-10-2026 02:00 - 03:00 500 MW

31-10-2026 03:00 - 04:00 500 MW

31-10-2026 04:00 - 05:00 500 MW

31-10-2026 05:00 - 06:00 500 MW

31-10-2026 06:00 - 07:00 500 MW

31-10-2026 07:00 - 08:00 500 MW

31-10-2026 08:00 - 09:00 500 MW

31-10-2026 09:00 - 10:00 500 MW

31-10-2026 10:00 - 11:00 500 MW

31-10-2026 11:00 - 12:00 500 MW

31-10-2026 12:00 - 13:00 500 MW

31-10-2026 13:00 - 14:00 500 MW

31-10-2026 14:00 - 15:00 500 MW

31-10-2026 15:00 - 16:00 500 MW

31-10-2026 16:00 - 17:00 500 MW

31-10-2026 17:00 - 18:00 500 MW

31-10-2026 18:00 - 19:00 500 MW

31-10-2026 19:00 - 20:00 500 MW

31-10-2026 20:00 - 21:00 500 MW

31-10-2026 21:00 - 22:00 500 MW

31-10-2026 22:00 - 23:00 500 MW

31-10-2026 23:00 - 24:00 500 MW

5. Amount of LTTR remaining after curtailment:

31-10-2026 00:00 - 01:00 0 MW

31-10-2026 01:00 - 02:00 0 MW

31-10-2026 02:00 - 03:00 0 MW

31-10-2026 03:00 - 04:00 0 MW

31-10-2026 04:00 - 05:00 0 MW

31-10-2026 05:00 - 06:00 0 MW

31-10-2026 06:00 - 07:00 0 MW

31-10-2026 07:00 - 08:00 0 MW

31-10-2026 08:00 - 09:00 0 MW

31-10-2026 09:00 - 10:00 0 MW

31-10-2026 10:00 - 11:00 0 MW

31-10-2026 11:00 - 12:00 0 MW

31-10-2026 12:00 - 13:00 0 MW

31-10-2026 13:00 - 14:00 0 MW

31-10-2026 14:00 - 15:00 0 MW

31-10-2026 15:00 - 16:00 0 MW

31-10-2026 16:00 - 17:00 0 MW

31-10-2026 17:00 - 18:00 0 MW

31-10-2026 18:00 - 19:00 0 MW

31-10-2026 19:00 - 20:00 0 MW

31-10-2026 20:00 - 21:00 0 MW

31-10-2026 21:00 - 22:00 0 MW

31-10-2026 22:00 - 23:00 0 MW

31-10-2026 23:00 - 24:00 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 AT-IT border for delivery period 31-10-2026

by JAO

1. TSO(s)*:

TERNA

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:

31-10-2026 00:00 - 01:00 222 MW

31-10-2026 01:00 - 02:00 222 MW

31-10-2026 02:00 - 03:00 222 MW

31-10-2026 03:00 - 04:00 222 MW

31-10-2026 04:00 - 05:00 222 MW

31-10-2026 05:00 - 06:00 222 MW

31-10-2026 06:00 - 07:00 222 MW

31-10-2026 07:00 - 08:00 222 MW

31-10-2026 08:00 - 09:00 222 MW

31-10-2026 09:00 - 10:00 222 MW

31-10-2026 10:00 - 11:00 222 MW

31-10-2026 11:00 - 12:00 222 MW

31-10-2026 12:00 - 13:00 222 MW

31-10-2026 13:00 - 14:00 222 MW

31-10-2026 14:00 - 15:00 222 MW

31-10-2026 15:00 - 16:00 222 MW

31-10-2026 16:00 - 17:00 222 MW

31-10-2026 17:00 - 18:00 222 MW

31-10-2026 18:00 - 19:00 222 MW

31-10-2026 19:00 - 20:00 222 MW

31-10-2026 20:00 - 21:00 222 MW

31-10-2026 21:00 - 22:00 222 MW

31-10-2026 22:00 - 23:00 222 MW

31-10-2026 23:00 - 24:00 222 MW

5. Amount of LTTR remaining after curtailment:

31-10-2026 00:00 - 01:00 173 MW

31-10-2026 01:00 - 02:00 173 MW

31-10-2026 02:00 - 03:00 173 MW

31-10-2026 03:00 - 04:00 172 MW

31-10-2026 04:00 - 05:00 172 MW

31-10-2026 05:00 - 06:00 172 MW

31-10-2026 06:00 - 07:00 172 MW

31-10-2026 07:00 - 08:00 169 MW

31-10-2026 08:00 - 09:00 169 MW

31-10-2026 09:00 - 10:00 169 MW

31-10-2026 10:00 - 11:00 169 MW

31-10-2026 11:00 - 12:00 169 MW

31-10-2026 12:00 - 13:00 169 MW

31-10-2026 13:00 - 14:00 169 MW

31-10-2026 14:00 - 15:00 169 MW

31-10-2026 15:00 - 16:00 155 MW

31-10-2026 16:00 - 17:00 155 MW

31-10-2026 17:00 - 18:00 155 MW

31-10-2026 18:00 - 19:00 175 MW

31-10-2026 19:00 - 20:00 179 MW

31-10-2026 20:00 - 21:00 179 MW

31-10-2026 21:00 - 22:00 179 MW

31-10-2026 22:00 - 23:00 188 MW

31-10-2026 23:00 - 24:00 171 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 ES-FR border for delivery period 31-10-2026

by JAO

1. TSO(s)*:

RTE, 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:

31-10-2026 00:00 - 01:00 1030 MW

31-10-2026 01:00 - 02:00 1030 MW

31-10-2026 02:00 - 03:00 1030 MW

31-10-2026 03:00 - 04:00 1030 MW

31-10-2026 04:00 - 05:00 1030 MW

31-10-2026 05:00 - 06:00 1030 MW

31-10-2026 06:00 - 07:00 1030 MW

31-10-2026 07:00 - 08:00 1030 MW

31-10-2026 08:00 - 09:00 1030 MW

31-10-2026 09:00 - 10:00 1030 MW

31-10-2026 10:00 - 11:00 1030 MW

31-10-2026 11:00 - 12:00 1030 MW

31-10-2026 12:00 - 13:00 1030 MW

31-10-2026 13:00 - 14:00 1030 MW

31-10-2026 14:00 - 15:00 1030 MW

31-10-2026 15:00 - 16:00 1030 MW

31-10-2026 16:00 - 17:00 1030 MW

31-10-2026 17:00 - 18:00 1030 MW

31-10-2026 18:00 - 19:00 1030 MW

31-10-2026 19:00 - 20:00 1030 MW

31-10-2026 20:00 - 21:00 1030 MW

31-10-2026 21:00 - 22:00 1030 MW

31-10-2026 22:00 - 23:00 1030 MW

31-10-2026 23:00 - 24:00 1030 MW

5. Amount of LTTR remaining after curtailment:

31-10-2026 00:00 - 01:00 965 MW

31-10-2026 01:00 - 02:00 965 MW

31-10-2026 02:00 - 03:00 965 MW

31-10-2026 03:00 - 04:00 965 MW

31-10-2026 04:00 - 05:00 965 MW

31-10-2026 05:00 - 06:00 965 MW

31-10-2026 06:00 - 07:00 965 MW

31-10-2026 07:00 - 08:00 965 MW

31-10-2026 08:00 - 09:00 965 MW

31-10-2026 09:00 - 10:00 965 MW

31-10-2026 10:00 - 11:00 965 MW

31-10-2026 11:00 - 12:00 965 MW

31-10-2026 12:00 - 13:00 965 MW

31-10-2026 13:00 - 14:00 965 MW

31-10-2026 14:00 - 15:00 965 MW

31-10-2026 15:00 - 16:00 965 MW

31-10-2026 16:00 - 17:00 965 MW

31-10-2026 17:00 - 18:00 965 MW

31-10-2026 18:00 - 19:00 965 MW

31-10-2026 19:00 - 20:00 965 MW

31-10-2026 20:00 - 21:00 965 MW

31-10-2026 21:00 - 22:00 965 MW

31-10-2026 22:00 - 23:00 965 MW

31-10-2026 23:00 - 24:00 965 MW

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

   31/10/2026

      00:00-01:00 Dambron - Verger

      01:00-02:00 Dambron - Verger

      02:00-03:00 Dambron - Verger

      03:00-04:00 Dambron - Verger

      04:00-05:00 Dambron - Verger

      05:00-06:00 Dambron - Verger

      06:00-07:00 Dambron - Verger

      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

      17:00-18:00 Dambron - Verger

      18:00-19:00 Dambron - Verger

      19:00-20:00 Dambron - Verger

      20:00-21:00 Dambron - Verger

      21:00-22:00 Dambron - Verger

      22:00-23:00 Dambron - Verger

      23:00-24:00 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

Capacity Curtailment on the FR-CH border for delivery period 31-10-2026

by JAO

1. TSO(s)*:

RTE-TSO

2. Identification of affected Long Term Transmission Rights:

FR-CH

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

31-10-2026 00:00 - 01:00 370 MW

31-10-2026 01:00 - 02:00 370 MW

31-10-2026 02:00 - 03:00 370 MW

31-10-2026 03:00 - 04:00 370 MW

31-10-2026 04:00 - 05:00 370 MW

31-10-2026 05:00 - 06:00 370 MW

31-10-2026 06:00 - 07:00 370 MW

31-10-2026 07:00 - 08:00 370 MW

31-10-2026 08:00 - 09:00 370 MW

31-10-2026 09:00 - 10:00 370 MW

31-10-2026 10:00 - 11:00 370 MW

31-10-2026 11:00 - 12:00 370 MW

31-10-2026 12:00 - 13:00 370 MW

31-10-2026 13:00 - 14:00 370 MW

31-10-2026 14:00 - 15:00 370 MW

31-10-2026 15:00 - 16:00 370 MW

31-10-2026 16:00 - 17:00 370 MW

31-10-2026 17:00 - 18:00 370 MW

31-10-2026 18:00 - 19:00 370 MW

31-10-2026 19:00 - 20:00 370 MW

31-10-2026 20:00 - 21:00 370 MW

31-10-2026 21:00 - 22:00 370 MW

31-10-2026 22:00 - 23:00 370 MW

31-10-2026 23:00 - 24:00 370 MW

5. Amount of LTTR remaining after curtailment:

31-10-2026 00:00 - 01:00 0 MW

31-10-2026 01:00 - 02:00 0 MW

31-10-2026 02:00 - 03:00 0 MW

31-10-2026 03:00 - 04:00 0 MW

31-10-2026 04:00 - 05:00 0 MW

31-10-2026 05:00 - 06:00 0 MW

31-10-2026 06:00 - 07:00 0 MW

31-10-2026 07:00 - 08:00 0 MW

31-10-2026 08:00 - 09:00 0 MW

31-10-2026 09:00 - 10:00 0 MW

31-10-2026 10:00 - 11:00 0 MW

31-10-2026 11:00 - 12:00 0 MW

31-10-2026 12:00 - 13:00 0 MW

31-10-2026 13:00 - 14:00 0 MW

31-10-2026 14:00 - 15:00 0 MW

31-10-2026 15:00 - 16:00 0 MW

31-10-2026 16:00 - 17:00 0 MW

31-10-2026 17:00 - 18:00 0 MW

31-10-2026 18:00 - 19:00 0 MW

31-10-2026 19:00 - 20:00 0 MW

31-10-2026 20:00 - 21:00 0 MW

31-10-2026 21:00 - 22:00 0 MW

31-10-2026 22:00 - 23:00 0 MW

31-10-2026 23:00 - 24:00 0 MW

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

31/10/2026

      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 12-11-2026

by JAO

1. TSO(s)*:

RTE-TSO

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:

12-11-2026 00:00 - 01:00 1200 MW

12-11-2026 01:00 - 02:00 1200 MW

12-11-2026 02:00 - 03:00 1200 MW

12-11-2026 03:00 - 04:00 1200 MW

12-11-2026 04:00 - 05:00 1200 MW

12-11-2026 05:00 - 06:00 1200 MW

12-11-2026 06:00 - 07:00 1200 MW

12-11-2026 07:00 - 08:00 1200 MW

12-11-2026 08:00 - 09:00 1200 MW

12-11-2026 09:00 - 10:00 1200 MW

12-11-2026 10:00 - 11:00 1200 MW

12-11-2026 11:00 - 12:00 1200 MW

12-11-2026 12:00 - 13:00 1200 MW

12-11-2026 13:00 - 14:00 1200 MW

12-11-2026 14:00 - 15:00 1200 MW

12-11-2026 15:00 - 16:00 1200 MW

12-11-2026 16:00 - 17:00 1200 MW

12-11-2026 17:00 - 18:00 1200 MW

12-11-2026 18:00 - 19:00 1200 MW

12-11-2026 19:00 - 20:00 1200 MW

12-11-2026 20:00 - 21:00 1200 MW

12-11-2026 21:00 - 22:00 1200 MW

12-11-2026 22:00 - 23:00 1200 MW

12-11-2026 23:00 - 24:00 1200 MW

5. Amount of LTTR remaining after curtailment:

12-11-2026 00:00 - 01:00 468 MW

12-11-2026 01:00 - 02:00 468 MW

12-11-2026 02:00 - 03:00 468 MW

12-11-2026 03:00 - 04:00 468 MW

12-11-2026 04:00 - 05:00 468 MW

12-11-2026 05:00 - 06:00 468 MW

12-11-2026 06:00 - 07:00 468 MW

12-11-2026 07:00 - 08:00 468 MW

12-11-2026 08:00 - 09:00 468 MW

12-11-2026 09:00 - 10:00 468 MW

12-11-2026 10:00 - 11:00 468 MW

12-11-2026 11:00 - 12:00 468 MW

12-11-2026 12:00 - 13:00 468 MW

12-11-2026 13:00 - 14:00 468 MW

12-11-2026 14:00 - 15:00 468 MW

12-11-2026 15:00 - 16:00 468 MW

12-11-2026 16:00 - 17:00 468 MW

12-11-2026 17:00 - 18:00 468 MW

12-11-2026 18:00 - 19:00 468 MW

12-11-2026 19:00 - 20:00 468 MW

12-11-2026 20:00 - 21:00 468 MW

12-11-2026 21:00 - 22:00 468 MW

12-11-2026 22:00 - 23:00 468 MW

12-11-2026 23:00 - 24:00 468 MW

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

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

Resource Center

This section contains key information for market participants such as user guides, forms, auction rules, nomination deadlines and other documents.

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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. 

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

Register your company

We created a user guide to support the onboarding of market participants. Learn more about the steps to register, the required documents and our service desk platform.

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

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