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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 IF1-GB-FR and IF1-FR-GB border for delivery period 24

by JAO

1. TSO(s)*:

NGIC

2. Identification of affected Long Term Transmission Rights:

IF1-GB-FR & 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:

24-10-2026 09:00 - 10:00 1299 MW

24-10-2026 10:00 - 11:00 1299 MW

24-10-2026 11:00 - 12:00 1299 MW

24-10-2026 12:00 - 13:00 1299 MW

24-10-2026 13:00 - 14:00 1299 MW

24-10-2026 14:00 - 15:00 1299 MW

24-10-2026 15:00 - 16:00 1299 MW

24-10-2026 16:00 - 17:00 1299 MW

24-10-2026 17:00 - 18:00 1299 MW

24-10-2026 18:00 - 19:00 1299 MW

24-10-2026 19:00 - 20:00 1299 MW

24-10-2026 20:00 - 21:00 1299 MW

24-10-2026 21:00 - 22:00 1299 MW

24-10-2026 22:00 - 23:00 1299 MW

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

5. Amount of LTTR remaining after curtailment:

24-10-2026 09:00 - 10:00 957 MW

24-10-2026 10:00 - 11:00 957 MW

24-10-2026 11:00 - 12:00 957 MW

24-10-2026 12:00 - 13:00 957 MW

24-10-2026 13:00 - 14:00 957 MW

24-10-2026 14:00 - 15:00 957 MW

24-10-2026 15:00 - 16:00 957 MW

24-10-2026 16:00 - 17:00 957 MW

24-10-2026 17:00 - 18:00 957 MW

24-10-2026 18:00 - 19:00 957 MW

24-10-2026 19:00 - 20:00 957 MW

24-10-2026 20:00 - 21:00 957 MW

24-10-2026 21:00 - 22:00 957 MW

24-10-2026 22:00 - 23:00 957 MW

24-10-2026 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 IF1-GB-FR and IF1-FR-GB border for delivery period 25-10-2026 - 30-10-2026

by JAO

1. TSO(s)*:

NGIC

2. Identification of affected Long Term Transmission Rights:

IF1-GB-FR & 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:

00:00 - 01:00 1299 MW

01:00 - 02:00 1299 MW

02:00 - 03:00 1299 MW

03:00 - 04:00 1299 MW

04:00 - 05:00 1299 MW

05:00 - 06:00 1299 MW

06:00 - 07:00 1299 MW

07:00 - 08:00 1299 MW

08:00 - 09:00 1299 MW

09:00 - 10:00 1299 MW

10:00 - 11:00 1299 MW

11:00 - 12:00 1299 MW

12:00 - 13:00 1299 MW

13:00 - 14:00 1299 MW

14:00 - 15:00 1299 MW

15:00 - 16:00 1299 MW

16:00 - 17:00 1299 MW

17:00 - 18:00 1299 MW

18:00 - 19:00 1299 MW

19:00 - 20:00 1299 MW

20:00 - 21:00 1299 MW

21:00 - 22:00 1299 MW

22:00 - 23:00 1299 MW

23:00 - 24:00 1299 MW

every day 25-10-2029 - 30-10-2026

5. Amount of LTTR remaining after curtailment:

00:00 - 01:00 957 MW

01:00 - 02:00 957 MW

02:00 - 03:00 957 MW

03:00 - 04:00 957 MW

04:00 - 05:00 957 MW

05:00 - 06:00 957 MW

06:00 - 07:00 957 MW

07:00 - 08:00 957 MW

08:00 - 09:00 957 MW

09:00 - 10:00 957 MW

10:00 - 11:00 957 MW

11:00 - 12:00 957 MW

12:00 - 13:00 957 MW

13:00 - 14:00 957 MW

14:00 - 15:00 957 MW

15:00 - 16:00 957 MW

16:00 - 17:00 957 MW

17:00 - 18:00 957 MW

18:00 - 19:00 957 MW

19:00 - 20:00 957 MW

20:00 - 21:00 957 MW

21:00 - 22:00 957 MW

22:00 - 23:00 957 MW

23:00 - 24:00 957 MW

every day 25-10-2029 - 30-10-2026

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 NSL-GB-N2 border for delivery period 16-10-2026

by JAO

1. TSO(s)*:

NGNSL_IC

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:

16-10-2026 19:00 - 20:00 50 MW

16-10-2026 20:00 - 21:00 50 MW

16-10-2026 21:00 - 22:00 50 MW

5. Amount of LTTR remaining after curtailment:

16-10-2026 19:00 - 20:00 0 MW

16-10-2026 20:00 - 21:00 0 MW

16-10-2026 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*:

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 NSL-GB-N2 border for delivery period 15-10-2026

by JAO

1. TSO(s)*:

NGNSL_IC

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:

15-10-2026 12:00 - 13:00 50 MW

15-10-2026 18:00 - 19:00 50 MW

15-10-2026 19:00 - 20:00 50 MW

15-10-2026 20:00 - 21:00 50 MW

15-10-2026 21:00 - 22:00 50 MW

15-10-2026 22:00 - 23:00 50 MW

5. Amount of LTTR remaining after curtailment:

15-10-2026 12:00 - 13:00 0 MW

15-10-2026 18:00 - 19:00 0 MW

15-10-2026 19:00 - 20:00 0 MW

15-10-2026 20:00 - 21:00 0 MW

15-10-2026 21:00 - 22:00 0 MW

15-10-2026 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
 

2026 Auction Calendar update

by JAO

Dear Market Participants,

We would like to inform you that as per TSOs request, the 2026 Auction Calendar has been updated on the corridor NLL-BE-GB

For more details please refer to the Auction Calendar on our webpage http://www.jao.eu/auctions#/calendar/table to find its latest version.

Best regards,

JAO Operations Team

Capacity Curtailment on the EL1-FR-GB border for delivery period 17-10-2026

by JAO

1. TSO(s)*:

ELECLINK

2. Identification of affected Long Term Transmission Rights:

EL1-FR-GB

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 1013 MW

17-10-2026 01:00 - 02:00 1013 MW

17-10-2026 02:00 - 03:00 1013 MW

17-10-2026 03:00 - 04:00 1013 MW

17-10-2026 04:00 - 05:00 1013 MW

17-10-2026 05:00 - 06:00 1013 MW

17-10-2026 06:00 - 07:00 1013 MW

17-10-2026 07:00 - 08:00 1013 MW

17-10-2026 08:00 - 09:00 1013 MW

17-10-2026 09:00 - 10:00 1013 MW

17-10-2026 10:00 - 11:00 1013 MW

17-10-2026 11:00 - 12:00 1013 MW

17-10-2026 12:00 - 13:00 1013 MW

17-10-2026 13:00 - 14:00 1013 MW

17-10-2026 14:00 - 15:00 1013 MW

17-10-2026 15:00 - 16:00 1013 MW

17-10-2026 16:00 - 17:00 1013 MW

17-10-2026 17:00 - 18:00 1013 MW

17-10-2026 18:00 - 19:00 1013 MW

17-10-2026 19:00 - 20:00 1013 MW

17-10-2026 20:00 - 21:00 1013 MW

17-10-2026 21:00 - 22:00 1013 MW

17-10-2026 22:00 - 23:00 1013 MW

17-10-2026 23:00 - 24:00 1013 MW

5. Amount of LTTR remaining after curtailment:

17-10-2026 00:00 - 01:00 0 MW

17-10-2026 01:00 - 02:00 0 MW

17-10-2026 02:00 - 03:00 0 MW

17-10-2026 03:00 - 04:00 0 MW

17-10-2026 04:00 - 05:00 0 MW

17-10-2026 05:00 - 06:00 0 MW

17-10-2026 06:00 - 07:00 0 MW

17-10-2026 07:00 - 08:00 0 MW

17-10-2026 08:00 - 09:00 0 MW

17-10-2026 09:00 - 10:00 0 MW

17-10-2026 10:00 - 11:00 0 MW

17-10-2026 11:00 - 12:00 0 MW

17-10-2026 12:00 - 13:00 0 MW

17-10-2026 13:00 - 14:00 0 MW

17-10-2026 14:00 - 15:00 0 MW

17-10-2026 15:00 - 16:00 0 MW

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

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

17-10-2026 18:00 - 19:00 0 MW

17-10-2026 19:00 - 20:00 0 MW

17-10-2026 20:00 - 21:00 0 MW

17-10-2026 21:00 - 22:00 0 MW

17-10-2026 22:00 - 23:00 0 MW

17-10-2026 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*:


Unplanned Outage

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

Maintenance for an Unplanned Outage

Capacity Curtailment on the EL1-GB-FR border for delivery period 17-10-2026

by JAO

1. TSO(s)*:

ELECLINK

2. Identification of affected Long Term Transmission Rights:

EL1-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 1011 MW

17-10-2026 01:00 - 02:00 1011 MW

17-10-2026 02:00 - 03:00 1011 MW

17-10-2026 03:00 - 04:00 1011 MW

17-10-2026 04:00 - 05:00 1011 MW

17-10-2026 05:00 - 06:00 1011 MW

17-10-2026 06:00 - 07:00 1011 MW

17-10-2026 07:00 - 08:00 1011 MW

17-10-2026 08:00 - 09:00 1011 MW

17-10-2026 09:00 - 10:00 1011 MW

17-10-2026 10:00 - 11:00 1011 MW

17-10-2026 11:00 - 12:00 1011 MW

17-10-2026 12:00 - 13:00 1011 MW

17-10-2026 13:00 - 14:00 1011 MW

17-10-2026 14:00 - 15:00 1011 MW

17-10-2026 15:00 - 16:00 1011 MW

17-10-2026 16:00 - 17:00 1011 MW

17-10-2026 17:00 - 18:00 1011 MW

17-10-2026 18:00 - 19:00 1011 MW

17-10-2026 19:00 - 20:00 1011 MW

17-10-2026 20:00 - 21:00 1011 MW

17-10-2026 21:00 - 22:00 1011 MW

17-10-2026 22:00 - 23:00 1011 MW

17-10-2026 23:00 - 24:00 1011 MW

5. Amount of LTTR remaining after curtailment:

17-10-2026 00:00 - 01:00 0 MW

17-10-2026 01:00 - 02:00 0 MW

17-10-2026 02:00 - 03:00 0 MW

17-10-2026 03:00 - 04:00 0 MW

17-10-2026 04:00 - 05:00 0 MW

17-10-2026 05:00 - 06:00 0 MW

17-10-2026 06:00 - 07:00 0 MW

17-10-2026 07:00 - 08:00 0 MW

17-10-2026 08:00 - 09:00 0 MW

17-10-2026 09:00 - 10:00 0 MW

17-10-2026 10:00 - 11:00 0 MW

17-10-2026 11:00 - 12:00 0 MW

17-10-2026 12:00 - 13:00 0 MW

17-10-2026 13:00 - 14:00 0 MW

17-10-2026 14:00 - 15:00 0 MW

17-10-2026 15:00 - 16:00 0 MW

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

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

17-10-2026 18:00 - 19:00 0 MW

17-10-2026 19:00 - 20:00 0 MW

17-10-2026 20:00 - 21:00 0 MW

17-10-2026 21:00 - 22:00 0 MW

17-10-2026 22:00 - 23:00 0 MW

17-10-2026 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*:


Unplanned Outage

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

Maintenance for an Unplanned Outage

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.

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