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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.

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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 IF1-GB-FR border for delivery period 23-10-2026

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:

23-10-2026 00:00 - 01:00 1299 MW

23-10-2026 01:00 - 02:00 1299 MW

23-10-2026 02:00 - 03:00 1299 MW

23-10-2026 03:00 - 04:00 1299 MW

23-10-2026 04:00 - 05:00 1299 MW

23-10-2026 05:00 - 06:00 1299 MW

23-10-2026 06:00 - 07:00 1299 MW

23-10-2026 07:00 - 08:00 1299 MW

23-10-2026 08:00 - 09:00 1299 MW

23-10-2026 09:00 - 10:00 1299 MW

23-10-2026 10:00 - 11:00 1299 MW

23-10-2026 11:00 - 12:00 1299 MW

23-10-2026 12:00 - 13:00 1299 MW

23-10-2026 13:00 - 14:00 1299 MW

23-10-2026 14:00 - 15:00 1299 MW

23-10-2026 15:00 - 16:00 1299 MW

23-10-2026 16:00 - 17:00 1299 MW

23-10-2026 17:00 - 18:00 1299 MW

23-10-2026 18:00 - 19:00 1299 MW

23-10-2026 19:00 - 20:00 1299 MW

23-10-2026 20:00 - 21:00 1299 MW

23-10-2026 21:00 - 22:00 1299 MW

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

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

5. Amount of LTTR remaining after curtailment:

23-10-2026 00:00 - 01:00 904 MW

23-10-2026 01:00 - 02:00 904 MW

23-10-2026 02:00 - 03:00 904 MW

23-10-2026 03:00 - 04:00 904 MW

23-10-2026 04:00 - 05:00 904 MW

23-10-2026 05:00 - 06:00 904 MW

23-10-2026 06:00 - 07:00 904 MW

23-10-2026 07:00 - 08:00 904 MW

23-10-2026 08:00 - 09:00 904 MW

23-10-2026 09:00 - 10:00 904 MW

23-10-2026 10:00 - 11:00 904 MW

23-10-2026 11:00 - 12:00 904 MW

23-10-2026 12:00 - 13:00 904 MW

23-10-2026 13:00 - 14:00 904 MW

23-10-2026 14:00 - 15:00 904 MW

23-10-2026 15:00 - 16:00 904 MW

23-10-2026 16:00 - 17:00 904 MW

23-10-2026 17:00 - 18:00 904 MW

23-10-2026 18:00 - 19:00 904 MW

23-10-2026 19:00 - 20:00 904 MW

23-10-2026 20:00 - 21:00 904 MW

23-10-2026 21:00 - 22:00 904 MW

23-10-2026 22:00 - 23:00 904 MW

23-10-2026 23:00 - 24:00 904 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 ME-IT border for delivery period 11-10-2026

by JAO

1. TSO(s)*:

CGES

2. Identification of affected Long Term Transmission Rights:

ME-IT

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

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

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

11-10-2026 12:00 - 13:00 400 MW

11-10-2026 13:00 - 14:00 400 MW

11-10-2026 14:00 - 15:00 400 MW

11-10-2026 15:00 - 16:00 400 MW

5. Amount of LTTR remaining after curtailment:

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

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

11-10-2026 12:00 - 13:00 0 MW

11-10-2026 13:00 - 14:00 0 MW

11-10-2026 14:00 - 15:00 0 MW

11-10-2026 15:00 - 16:00 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 EL1-FR-GB border for delivery period 11-10-2026

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:

11-10-2026 06:00 - 07:00 414 MW

11-10-2026 07:00 - 08:00 414 MW

11-10-2026 08:00 - 09:00 414 MW

11-10-2026 09:00 - 10:00 414 MW

11-10-2026 10:00 - 11:00 414 MW a

11-10-2026 11:00 - 12:00 414 MW

11-10-2026 12:00 - 13:00 414 MW

11-10-2026 13:00 - 14:00 414 MW

11-10-2026 14:00 - 15:00 414 MW

11-10-2026 15:00 - 16:00 414 MW

11-10-2026 16:00 - 17:00 414 MW

11-10-2026 17:00 - 18:00 414 MW

11-10-2026 18:00 - 19:00 414 MW

11-10-2026 19:00 - 20:00 414 MW

11-10-2026 20:00 - 21:00 414 MW

11-10-2026 21:00 - 22:00 414 MW

11-10-2026 22:00 - 23:00 414 MW

11-10-2026 23:00 - 24:00 414 MW

5. Amount of LTTR remaining after curtailment:

11-10-2026 06:00 - 07:00 0 MW

11-10-2026 07:00 - 08:00 0 MW

11-10-2026 08:00 - 09:00 0 MW

11-10-2026 09:00 - 10:00 0 MW

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

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

11-10-2026 12:00 - 13:00 0 MW

11-10-2026 13:00 - 14:00 0 MW

11-10-2026 14:00 - 15:00 0 MW

11-10-2026 15:00 - 16:00 0 MW

11-10-2026 16:00 - 17:00 0 MW

11-10-2026 17:00 - 18:00 0 MW

11-10-2026 18:00 - 19:00 0 MW

11-10-2026 19:00 - 20:00 0 MW

11-10-2026 20:00 - 21:00 0 MW

11-10-2026 21:00 - 22:00 0 MW

11-10-2026 22:00 - 23:00 0 MW

11-10-2026 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

*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 EL1-GB-FR border for delivery period 11-10-2026

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:

11-10-2026 06:00 - 07:00 412 MW

11-10-2026 07:00 - 08:00 412 MW

11-10-2026 08:00 - 09:00 412 MW

11-10-2026 09:00 - 10:00 412 MW

11-10-2026 10:00 - 11:00 412 MW

11-10-2026 11:00 - 12:00 412 MW

11-10-2026 12:00 - 13:00 412 MW

11-10-2026 13:00 - 14:00 412 MW

11-10-2026 14:00 - 15:00 412 MW

11-10-2026 15:00 - 16:00 412 MW

11-10-2026 16:00 - 17:00 412 MW

11-10-2026 17:00 - 18:00 412 MW

11-10-2026 18:00 - 19:00 412 MW

11-10-2026 19:00 - 20:00 412 MW

11-10-2026 20:00 - 21:00 412 MW

11-10-2026 21:00 - 22:00 412 MW

11-10-2026 22:00 - 23:00 412 MW

11-10-2026 23:00 - 24:00 412 MW

5. Amount of LTTR remaining after curtailment:

11-10-2026 06:00 - 07:00 0 MW

11-10-2026 07:00 - 08:00 0 MW

11-10-2026 08:00 - 09:00 0 MW

11-10-2026 09:00 - 10:00 0 MW

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

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

11-10-2026 12:00 - 13:00 0 MW

11-10-2026 13:00 - 14:00 0 MW

11-10-2026 14:00 - 15:00 0 MW

11-10-2026 15:00 - 16:00 0 MW

11-10-2026 16:00 - 17:00 0 MW

11-10-2026 17:00 - 18:00 0 MW

11-10-2026 18:00 - 19:00 0 MW

11-10-2026 19:00 - 20:00 0 MW

11-10-2026 20:00 - 21:00 0 MW

11-10-2026 21:00 - 22:00 0 MW

11-10-2026 22:00 - 23:00 0 MW

11-10-2026 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

*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 FR-ES border for delivery period 10-10-2026

by JAO

1. TSO(s)*:

RTE, REE

2. Identification of affected Long Term Transmission Rights:

FR-ES

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

10-10-2026 04:00 - 05:00 1899 MW

10-10-2026 05:00 - 06:00 1899 MW

10-10-2026 06:00 - 07:00 1899 MW

5. Amount of LTTR remaining after curtailment:

10-10-2026 04:00 - 05:00 1614 MW

10-10-2026 05:00 - 06:00 1614 MW

10-10-2026 06:00 - 07:00 1614 MW

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

   10/10/2026

      04:00-05:00 Network Security

      05:00-06:00 Network Security

      06:00-07:00 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 11-10-2026

by JAO

1. TSO(s)*:

National Grid Interconnectors Limited (NGIC) and RTE EDF Transport S.A. (RTE)

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:

11-10-2026 00:00 - 01:00 1299 MW

11-10-2026 01:00 - 02:00 1299 MW

11-10-2026 02:00 - 03:00 1299 MW

11-10-2026 03:00 - 04:00 1299 MW

11-10-2026 04:00 - 05:00 1299 MW

11-10-2026 05:00 - 06:00 1299 MW

11-10-2026 06:00 - 07:00 1299 MW

11-10-2026 07:00 - 08:00 1299 MW

11-10-2026 08:00 - 09:00 1299 MW

11-10-2026 09:00 - 10:00 1299 MW

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

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

11-10-2026 12:00 - 13:00 1299 MW

11-10-2026 13:00 - 14:00 1299 MW

11-10-2026 14:00 - 15:00 1299 MW

11-10-2026 15:00 - 16:00 1299 MW

11-10-2026 16:00 - 17:00 1299 MW

11-10-2026 17:00 - 18:00 1299 MW

11-10-2026 18:00 - 19:00 1299 MW

11-10-2026 19:00 - 20:00 1299 MW

11-10-2026 20:00 - 21:00 1299 MW

11-10-2026 21:00 - 22:00 1299 MW

11-10-2026 22:00 - 23:00 1299 MW

11-10-2026 23:00 - 24:00 1299 MW

5. Amount of LTTR remaining after curtailment:

11-10-2026 00:00 - 01:00 904 MW

11-10-2026 01:00 - 02:00 904 MW

11-10-2026 02:00 - 03:00 904 MW

11-10-2026 03:00 - 04:00 904 MW

11-10-2026 04:00 - 05:00 904 MW

11-10-2026 05:00 - 06:00 904 MW

11-10-2026 06:00 - 07:00 904 MW

11-10-2026 07:00 - 08:00 904 MW

11-10-2026 08:00 - 09:00 904 MW

11-10-2026 09:00 - 10:00 904 MW

11-10-2026 10:00 - 11:00 904 MW

11-10-2026 11:00 - 12:00 904 MW

11-10-2026 12:00 - 13:00 904 MW

11-10-2026 13:00 - 14:00 904 MW

11-10-2026 14:00 - 15:00 904 MW

11-10-2026 15:00 - 16:00 904 MW

11-10-2026 16:00 - 17:00 904 MW

11-10-2026 17:00 - 18:00 904 MW

11-10-2026 18:00 - 19:00 904 MW

11-10-2026 19:00 - 20:00 904 MW

11-10-2026 20:00 - 21:00 904 MW

11-10-2026 21:00 - 22:00 904 MW

11-10-2026 22:00 - 23:00 904 MW

11-10-2026 23:00 - 24:00 904 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 border for delivery period 10-10-2026

by JAO

1. TSO(s)*:

National Grid Interconnectors Limited (NGIC) and RTE EDF Transport S.A. (RTE)

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:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

5. Amount of LTTR remaining after curtailment:

10-10-2026 00:00 - 01:00 904 MW

10-10-2026 01:00 - 02:00 904 MW

10-10-2026 02:00 - 03:00 904 MW

10-10-2026 03:00 - 04:00 904 MW

10-10-2026 04:00 - 05:00 904 MW

10-10-2026 05:00 - 06:00 904 MW

10-10-2026 06:00 - 07:00 904 MW

10-10-2026 07:00 - 08:00 904 MW

10-10-2026 08:00 - 09:00 904 MW

10-10-2026 09:00 - 10:00 904 MW

10-10-2026 10:00 - 11:00 904 MW

10-10-2026 11:00 - 12:00 904 MW

10-10-2026 12:00 - 13:00 904 MW

10-10-2026 13:00 - 14:00 904 MW

10-10-2026 14:00 - 15:00 904 MW

10-10-2026 15:00 - 16:00 904 MW

10-10-2026 16:00 - 17:00 904 MW

10-10-2026 17:00 - 18:00 904 MW

10-10-2026 18:00 - 19:00 904 MW

10-10-2026 19:00 - 20:00 904 MW

10-10-2026 20:00 - 21:00 904 MW

10-10-2026 21:00 - 22:00 904 MW

10-10-2026 22:00 - 23:00 904 MW

10-10-2026 23:00 - 24:00 904 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.

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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.

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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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Frequently asked questions

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

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