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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

500+

Registered market participants
26k+

Auctions held annually
100%

Auction tool availability
80+

Employees
50

TSOs serviced

Latest market messages

Go to Message Board

Capacity Curtailment on the IF1-FR-GB border for delivery period 15-11-2026

Published: 02/11/2026 | 11:41 by JAO
Capacity Curtailment on the IF1-GB-FR border for delivery period 15-11-2026

Published: 02/11/2026 | 11:40 by JAO
Capacity Curtailment on the IF1-FR-GB border for delivery period 14-11-2026

Published: 02/11/2026 | 11:39 by JAO
Capacity Curtailment on the IF1-GB-FR border for delivery period 14-11-2026

Published: 02/11/2026 | 11:39 by JAO
Capacity Curtailment on the IF1-GB-FR border for delivery period 12-12-2026

Published: 02/11/2026 | 10:50 by JAO
Capacity Curtailment on the IF1-FR-GB border for delivery period 12-12-2026

Published: 02/11/2026 | 10:45 by JAO
Capacity Curtailment on the IF1-FR-GB border for delivery period 11-12-2026

Published: 02/11/2026 | 10:43 by JAO

Go to Message board

1. TSO(s)*:

RNP

2. Identification of affected Long Term Transmission Rights:

IF1-FR-GB

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

15-11-2026 00:00 - 01:00 1200 MW

15-11-2026 01:00 - 02:00 1200 MW

15-11-2026 02:00 - 03:00 1200 MW

15-11-2026 03:00 - 04:00 1200 MW

15-11-2026 04:00 - 05:00 1200 MW

15-11-2026 05:00 - 06:00 1200 MW

15-11-2026 06:00 - 07:00 1200 MW

15-11-2026 07:00 - 08:00 1200 MW

15-11-2026 08:00 - 09:00 1200 MW

15-11-2026 09:00 - 10:00 1200 MW

15-11-2026 10:00 - 11:00 1200 MW

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

15-11-2026 12:00 - 13:00 1200 MW

15-11-2026 13:00 - 14:00 1200 MW

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

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

15-11-2026 16:00 - 17:00 1200 MW

15-11-2026 17:00 - 18:00 1200 MW

15-11-2026 18:00 - 19:00 1200 MW

15-11-2026 19:00 - 20:00 1200 MW

15-11-2026 20:00 - 21:00 1200 MW

15-11-2026 21:00 - 22:00 1200 MW

15-11-2026 22:00 - 23:00 1200 MW

15-11-2026 23:00 - 24:00 1200 MW

5. Amount of LTTR remaining after curtailment:

15-11-2026 00:00 - 01:00 966 MW

15-11-2026 01:00 - 02:00 966 MW

15-11-2026 02:00 - 03:00 966 MW

15-11-2026 03:00 - 04:00 966 MW

15-11-2026 04:00 - 05:00 966 MW

15-11-2026 05:00 - 06:00 966 MW

15-11-2026 06:00 - 07:00 966 MW

15-11-2026 07:00 - 08:00 966 MW

15-11-2026 08:00 - 09:00 966 MW

15-11-2026 09:00 - 10:00 966 MW

15-11-2026 10:00 - 11:00 966 MW

15-11-2026 11:00 - 12:00 966 MW

15-11-2026 12:00 - 13:00 966 MW

15-11-2026 13:00 - 14:00 966 MW

15-11-2026 14:00 - 15:00 966 MW

15-11-2026 15:00 - 16:00 966 MW

15-11-2026 16:00 - 17:00 966 MW

15-11-2026 17:00 - 18:00 966 MW

15-11-2026 18:00 - 19:00 966 MW

15-11-2026 19:00 - 20:00 966 MW

15-11-2026 20:00 - 21:00 966 MW

15-11-2026 21:00 - 22:00 966 MW

15-11-2026 22:00 - 23:00 966 MW

15-11-2026 23:00 - 24:00 966 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

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:

15-11-2026 00:00 - 01:00 1200 MW

15-11-2026 01:00 - 02:00 1200 MW

15-11-2026 02:00 - 03:00 1200 MW

15-11-2026 03:00 - 04:00 1200 MW

15-11-2026 04:00 - 05:00 1200 MW

15-11-2026 05:00 - 06:00 1200 MW

15-11-2026 06:00 - 07:00 1200 MW

15-11-2026 07:00 - 08:00 1200 MW

15-11-2026 08:00 - 09:00 1200 MW

15-11-2026 09:00 - 10:00 1200 MW

15-11-2026 10:00 - 11:00 1200 MW

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

15-11-2026 12:00 - 13:00 1200 MW

15-11-2026 13:00 - 14:00 1200 MW

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

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

15-11-2026 16:00 - 17:00 1200 MW

15-11-2026 17:00 - 18:00 1200 MW

15-11-2026 18:00 - 19:00 1200 MW

15-11-2026 19:00 - 20:00 1200 MW

15-11-2026 20:00 - 21:00 1200 MW

15-11-2026 21:00 - 22:00 1200 MW

15-11-2026 22:00 - 23:00 1200 MW

15-11-2026 23:00 - 24:00 1200 MW

5. Amount of LTTR remaining after curtailment:

15-11-2026 00:00 - 01:00 966 MW

15-11-2026 01:00 - 02:00 966 MW

15-11-2026 02:00 - 03:00 966 MW

15-11-2026 03:00 - 04:00 966 MW

15-11-2026 04:00 - 05:00 966 MW

15-11-2026 05:00 - 06:00 966 MW

15-11-2026 06:00 - 07:00 966 MW

15-11-2026 07:00 - 08:00 966 MW

15-11-2026 08:00 - 09:00 966 MW

15-11-2026 09:00 - 10:00 966 MW

15-11-2026 10:00 - 11:00 966 MW

15-11-2026 11:00 - 12:00 966 MW

15-11-2026 12:00 - 13:00 966 MW

15-11-2026 13:00 - 14:00 966 MW

15-11-2026 14:00 - 15:00 966 MW

15-11-2026 15:00 - 16:00 966 MW

15-11-2026 16:00 - 17:00 966 MW

15-11-2026 17:00 - 18:00 966 MW

15-11-2026 18:00 - 19:00 966 MW

15-11-2026 19:00 - 20:00 966 MW

15-11-2026 20:00 - 21:00 966 MW

15-11-2026 21:00 - 22:00 966 MW

15-11-2026 22:00 - 23:00 966 MW

15-11-2026 23:00 - 24:00 966 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

1. TSO(s)*:

RNP

2. Identification of affected Long Term Transmission Rights:

IF1-FR-GB

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

14-11-2026 00:00 - 01:00 1200 MW

14-11-2026 01:00 - 02:00 1200 MW

14-11-2026 02:00 - 03:00 1200 MW

14-11-2026 03:00 - 04:00 1200 MW

14-11-2026 04:00 - 05:00 1200 MW

14-11-2026 05:00 - 06:00 1200 MW

14-11-2026 06:00 - 07:00 1200 MW

14-11-2026 07:00 - 08:00 1200 MW

14-11-2026 08:00 - 09:00 1200 MW

14-11-2026 09:00 - 10:00 1200 MW

14-11-2026 10:00 - 11:00 1200 MW

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

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

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

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

14-11-2026 15:00 - 16:00 1200 MW

14-11-2026 16:00 - 17:00 1200 MW

14-11-2026 17:00 - 18:00 1200 MW

14-11-2026 18:00 - 19:00 1200 MW

14-11-2026 19:00 - 20:00 1200 MW

14-11-2026 20:00 - 21:00 1200 MW

14-11-2026 21:00 - 22:00 1200 MW

14-11-2026 22:00 - 23:00 1200 MW

14-11-2026 23:00 - 24:00 1200 MW

5. Amount of LTTR remaining after curtailment:

14-11-2026 00:00 - 01:00 966 MW

14-11-2026 01:00 - 02:00 966 MW

14-11-2026 02:00 - 03:00 966 MW

14-11-2026 03:00 - 04:00 966 MW

14-11-2026 04:00 - 05:00 966 MW

14-11-2026 05:00 - 06:00 966 MW

14-11-2026 06:00 - 07:00 966 MW

14-11-2026 07:00 - 08:00 966 MW

14-11-2026 08:00 - 09:00 966 MW

14-11-2026 09:00 - 10:00 966 MW

14-11-2026 10:00 - 11:00 966 MW

14-11-2026 11:00 - 12:00 966 MW

14-11-2026 12:00 - 13:00 966 MW

14-11-2026 13:00 - 14:00 966 MW

14-11-2026 14:00 - 15:00 966 MW

14-11-2026 15:00 - 16:00 966 MW

14-11-2026 16:00 - 17:00 966 MW

14-11-2026 17:00 - 18:00 966 MW

14-11-2026 18:00 - 19:00 966 MW

14-11-2026 19:00 - 20:00 966 MW

14-11-2026 20:00 - 21:00 966 MW

14-11-2026 21:00 - 22:00 966 MW

14-11-2026 22:00 - 23:00 966 MW

14-11-2026 23:00 - 24:00 966 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

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:

14-11-2026 00:00 - 01:00 1200 MW

14-11-2026 01:00 - 02:00 1200 MW

14-11-2026 02:00 - 03:00 1200 MW

14-11-2026 03:00 - 04:00 1200 MW

14-11-2026 04:00 - 05:00 1200 MW

14-11-2026 05:00 - 06:00 1200 MW

14-11-2026 06:00 - 07:00 1200 MW

14-11-2026 07:00 - 08:00 1200 MW

14-11-2026 08:00 - 09:00 1200 MW

14-11-2026 09:00 - 10:00 1200 MW

14-11-2026 10:00 - 11:00 1200 MW

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

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

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

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

14-11-2026 15:00 - 16:00 1200 MW

14-11-2026 16:00 - 17:00 1200 MW

14-11-2026 17:00 - 18:00 1200 MW

14-11-2026 18:00 - 19:00 1200 MW

14-11-2026 19:00 - 20:00 1200 MW

14-11-2026 20:00 - 21:00 1200 MW

14-11-2026 21:00 - 22:00 1200 MW

14-11-2026 22:00 - 23:00 1200 MW

14-11-2026 23:00 - 24:00 1200 MW

5. Amount of LTTR remaining after curtailment:

14-11-2026 00:00 - 01:00 966 MW

14-11-2026 01:00 - 02:00 966 MW

14-11-2026 02:00 - 03:00 966 MW

14-11-2026 03:00 - 04:00 966 MW

14-11-2026 04:00 - 05:00 966 MW

14-11-2026 05:00 - 06:00 966 MW

14-11-2026 06:00 - 07:00 966 MW

14-11-2026 07:00 - 08:00 966 MW

14-11-2026 08:00 - 09:00 966 MW

14-11-2026 09:00 - 10:00 966 MW

14-11-2026 10:00 - 11:00 966 MW

14-11-2026 11:00 - 12:00 966 MW

14-11-2026 12:00 - 13:00 966 MW

14-11-2026 13:00 - 14:00 966 MW

14-11-2026 14:00 - 15:00 966 MW

14-11-2026 15:00 - 16:00 966 MW

14-11-2026 16:00 - 17:00 966 MW

14-11-2026 17:00 - 18:00 966 MW

14-11-2026 18:00 - 19:00 966 MW

14-11-2026 19:00 - 20:00 966 MW

14-11-2026 20:00 - 21:00 966 MW

14-11-2026 21:00 - 22:00 966 MW

14-11-2026 22:00 - 23:00 966 MW

14-11-2026 23:00 - 24:00 966 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

1. TSO(s)*:

NGIC

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:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

5. Amount of LTTR remaining after curtailment:

12-12-2026 00:00 - 01:00 966 MW

12-12-2026 01:00 - 02:00 966 MW

12-12-2026 02:00 - 03:00 966 MW

12-12-2026 03:00 - 04:00 966 MW

12-12-2026 04:00 - 05:00 966 MW

12-12-2026 05:00 - 06:00 966 MW

12-12-2026 06:00 - 07:00 966 MW

12-12-2026 07:00 - 08:00 966 MW

12-12-2026 08:00 - 09:00 966 MW

12-12-2026 09:00 - 10:00 966 MW

12-12-2026 10:00 - 11:00 966 MW

12-12-2026 11:00 - 12:00 966 MW

12-12-2026 12:00 - 13:00 966 MW

12-12-2026 13:00 - 14:00 966 MW

12-12-2026 14:00 - 15:00 966 MW

12-12-2026 15:00 - 16:00 966 MW

12-12-2026 16:00 - 17:00 966 MW

12-12-2026 17:00 - 18:00 966 MW

12-12-2026 18:00 - 19:00 966 MW

12-12-2026 19:00 - 20:00 966 MW

12-12-2026 20:00 - 21:00 966 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

1. TSO(s)*:

NGIC

2. Identification of affected Long Term Transmission Rights:

IF1-FR-GB

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

5. Amount of LTTR remaining after curtailment:

12-12-2026 00:00 - 01:00 966 MW

12-12-2026 01:00 - 02:00 966 MW

12-12-2026 02:00 - 03:00 966 MW

12-12-2026 03:00 - 04:00 966 MW

12-12-2026 04:00 - 05:00 966 MW

12-12-2026 05:00 - 06:00 966 MW

12-12-2026 06:00 - 07:00 966 MW

12-12-2026 07:00 - 08:00 966 MW

12-12-2026 08:00 - 09:00 966 MW

12-12-2026 09:00 - 10:00 966 MW

12-12-2026 10:00 - 11:00 966 MW

12-12-2026 11:00 - 12:00 966 MW

12-12-2026 12:00 - 13:00 966 MW

12-12-2026 13:00 - 14:00 966 MW

12-12-2026 14:00 - 15:00 966 MW

12-12-2026 15:00 - 16:00 966 MW

12-12-2026 16:00 - 17:00 966 MW

12-12-2026 17:00 - 18:00 966 MW

12-12-2026 18:00 - 19:00 966 MW

12-12-2026 19:00 - 20:00 966 MW

12-12-2026 20:00 - 21:00 966 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

1. TSO(s)*:

NGIC

2. Identification of affected Long Term Transmission Rights:

IF1-FR-GB

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

5. Amount of LTTR remaining after curtailment:

11-12-2026 09:00 - 10:00 966 MW

11-12-2026 10:00 - 11:00 966 MW

11-12-2026 11:00 - 12:00 966 MW

11-12-2026 12:00 - 13:00 966 MW

11-12-2026 13:00 - 14:00 966 MW

11-12-2026 14:00 - 15:00 966 MW

11-12-2026 15:00 - 16:00 966 MW

11-12-2026 16:00 - 17:00 966 MW

11-12-2026 17:00 - 18:00 966 MW

11-12-2026 18:00 - 19:00 966 MW

11-12-2026 19:00 - 20:00 966 MW

11-12-2026 20:00 - 21:00 966 MW

11-12-2026 21:00 - 22:00 966 MW

11-12-2026 22:00 - 23:00 966 MW

11-12-2026 23:00 - 24:00 966 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

Resource Center

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

Go to resources

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.

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.

Go to registration