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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

Publication of IDCC (b) data for Business Day 05/07/2025

by JAO

Dear Market Participants,

We would like to inform you that validation reduction data Core ID CCR IDCC (b) for business day 05/07/2025, will not be published as it is not available in CCC Tool.

Thank you for your understanding.

Kind regards,

JAO Operations

Capacity Curtailment on the IF1-FR-GB border for delivery period 06-07-2025

by JAO

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:

06-07-2025 00:00 - 01:00 1900 MW

06-07-2025 01:00 - 02:00 1900 MW

06-07-2025 02:00 - 03:00 1900 MW

06-07-2025 03:00 - 04:00 1900 MW

06-07-2025 04:00 - 05:00 1900 MW

06-07-2025 05:00 - 06:00 1900 MW

06-07-2025 06:00 - 07:00 1900 MW

06-07-2025 07:00 - 08:00 1900 MW

06-07-2025 08:00 - 09:00 1900 MW

06-07-2025 09:00 - 10:00 1900 MW

06-07-2025 10:00 - 11:00 1900 MW

06-07-2025 11:00 - 12:00 1900 MW

06-07-2025 12:00 - 13:00 1900 MW

06-07-2025 13:00 - 14:00 1900 MW

06-07-2025 14:00 - 15:00 1900 MW

06-07-2025 15:00 - 16:00 1900 MW

06-07-2025 16:00 - 17:00 1900 MW

06-07-2025 17:00 - 18:00 1900 MW

06-07-2025 18:00 - 19:00 1900 MW

06-07-2025 19:00 - 20:00 1900 MW

06-07-2025 20:00 - 21:00 1900 MW

06-07-2025 21:00 - 22:00 1900 MW

06-07-2025 22:00 - 23:00 1900 MW

06-07-2025 23:00 - 24:00 1900 MW

5. Amount of LTTR remaining after curtailment:

06-07-2025 00:00 - 01:00 1457 MW

06-07-2025 01:00 - 02:00 1457 MW

06-07-2025 02:00 - 03:00 1457 MW

06-07-2025 03:00 - 04:00 1457 MW

06-07-2025 04:00 - 05:00 1457 MW

06-07-2025 05:00 - 06:00 1457 MW

06-07-2025 06:00 - 07:00 1457 MW

06-07-2025 07:00 - 08:00 1457 MW

06-07-2025 08:00 - 09:00 1457 MW

06-07-2025 09:00 - 10:00 1457 MW

06-07-2025 10:00 - 11:00 1457 MW

06-07-2025 11:00 - 12:00 1457 MW

06-07-2025 12:00 - 13:00 1457 MW

06-07-2025 13:00 - 14:00 1457 MW

06-07-2025 14:00 - 15:00 1457 MW

06-07-2025 15:00 - 16:00 1457 MW

06-07-2025 16:00 - 17:00 1457 MW

06-07-2025 17:00 - 18:00 1457 MW

06-07-2025 18:00 - 19:00 1457 MW

06-07-2025 19:00 - 20:00 1457 MW

06-07-2025 20:00 - 21:00 1457 MW

06-07-2025 21:00 - 22:00 1457 MW

06-07-2025 22:00 - 23:00 1457 MW

06-07-2025 23:00 - 24:00 1457 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 unplanned maintenance

Capacity Curtailment on the IF1-GB-FR border for delivery period 06-07-2025

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:

06-07-2025 00:00 - 01:00 1900 MW

06-07-2025 01:00 - 02:00 1900 MW

06-07-2025 02:00 - 03:00 1900 MW

06-07-2025 03:00 - 04:00 1900 MW

06-07-2025 04:00 - 05:00 1900 MW

06-07-2025 05:00 - 06:00 1900 MW

06-07-2025 06:00 - 07:00 1900 MW

06-07-2025 07:00 - 08:00 1900 MW

06-07-2025 08:00 - 09:00 1900 MW

06-07-2025 09:00 - 10:00 1900 MW

06-07-2025 10:00 - 11:00 1900 MW

06-07-2025 11:00 - 12:00 1900 MW

06-07-2025 12:00 - 13:00 1900 MW

06-07-2025 13:00 - 14:00 1900 MW

06-07-2025 14:00 - 15:00 1900 MW

06-07-2025 15:00 - 16:00 1900 MW

06-07-2025 16:00 - 17:00 1900 MW

06-07-2025 17:00 - 18:00 1900 MW

06-07-2025 18:00 - 19:00 1900 MW

06-07-2025 19:00 - 20:00 1900 MW

06-07-2025 20:00 - 21:00 1900 MW

06-07-2025 21:00 - 22:00 1900 MW

06-07-2025 22:00 - 23:00 1900 MW

06-07-2025 23:00 - 24:00 1900 MW

5. Amount of LTTR remaining after curtailment:

06-07-2025 00:00 - 01:00 1426 MW

06-07-2025 01:00 - 02:00 1426 MW

06-07-2025 02:00 - 03:00 1426 MW

06-07-2025 03:00 - 04:00 1426 MW

06-07-2025 04:00 - 05:00 1426 MW

06-07-2025 05:00 - 06:00 1426 MW

06-07-2025 06:00 - 07:00 1426 MW

06-07-2025 07:00 - 08:00 1426 MW

06-07-2025 08:00 - 09:00 1426 MW

06-07-2025 09:00 - 10:00 1426 MW

06-07-2025 10:00 - 11:00 1426 MW

06-07-2025 11:00 - 12:00 1426 MW

06-07-2025 12:00 - 13:00 1426 MW

06-07-2025 13:00 - 14:00 1426 MW

06-07-2025 14:00 - 15:00 1426 MW

06-07-2025 15:00 - 16:00 1426 MW

06-07-2025 16:00 - 17:00 1426 MW

06-07-2025 17:00 - 18:00 1426 MW

06-07-2025 18:00 - 19:00 1426 MW

06-07-2025 19:00 - 20:00 1426 MW

06-07-2025 20:00 - 21:00 1426 MW

06-07-2025 21:00 - 22:00 1426 MW

06-07-2025 22:00 - 23:00 1426 MW

06-07-2025 23:00 - 24:00 1426 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 unplanned maintenance

Capacity Curtailment on the IF1-GB-FR border for delivery period 07-07-2025

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:

07-07-2025 00:00 - 01:00 1900 MW

07-07-2025 01:00 - 02:00 1900 MW

07-07-2025 02:00 - 03:00 1900 MW

07-07-2025 03:00 - 04:00 1900 MW

07-07-2025 04:00 - 05:00 1900 MW

07-07-2025 05:00 - 06:00 1900 MW

07-07-2025 06:00 - 07:00 1900 MW

07-07-2025 07:00 - 08:00 1900 MW

07-07-2025 08:00 - 09:00 1900 MW

07-07-2025 09:00 - 10:00 1900 MW

07-07-2025 10:00 - 11:00 1900 MW

07-07-2025 11:00 - 12:00 1900 MW

5. Amount of LTTR remaining after curtailment:

07-07-2025 00:00 - 01:00 1426 MW

07-07-2025 01:00 - 02:00 1426 MW

07-07-2025 02:00 - 03:00 1426 MW

07-07-2025 03:00 - 04:00 1426 MW

07-07-2025 04:00 - 05:00 1426 MW

07-07-2025 05:00 - 06:00 1426 MW

07-07-2025 06:00 - 07:00 1426 MW

07-07-2025 07:00 - 08:00 1426 MW

07-07-2025 08:00 - 09:00 1426 MW

07-07-2025 09:00 - 10:00 1426 MW

07-07-2025 10:00 - 11:00 1426 MW

07-07-2025 11:00 - 12:00 1426 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 unplanned maintenance

Capacity Curtailment on the IF1-FR-GB border for delivery period 07-07-2025

by JAO

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:

07-07-2025 00:00 - 01:00 1900 MW

07-07-2025 01:00 - 02:00 1900 MW

07-07-2025 02:00 - 03:00 1900 MW

07-07-2025 03:00 - 04:00 1900 MW

07-07-2025 04:00 - 05:00 1900 MW

07-07-2025 05:00 - 06:00 1900 MW

07-07-2025 06:00 - 07:00 1900 MW

07-07-2025 07:00 - 08:00 1900 MW

07-07-2025 08:00 - 09:00 1900 MW

07-07-2025 09:00 - 10:00 1900 MW

07-07-2025 10:00 - 11:00 1900 MW

07-07-2025 11:00 - 12:00 1900 MW

5. Amount of LTTR remaining after curtailment:

07-07-2025 00:00 - 01:00 1457 MW

07-07-2025 01:00 - 02:00 1457 MW

07-07-2025 02:00 - 03:00 1457 MW

07-07-2025 03:00 - 04:00 1457 MW

07-07-2025 04:00 - 05:00 1457 MW

07-07-2025 05:00 - 06:00 1457 MW

07-07-2025 06:00 - 07:00 1457 MW

07-07-2025 07:00 - 08:00 1457 MW

07-07-2025 08:00 - 09:00 1457 MW

07-07-2025 09:00 - 10:00 1457 MW

07-07-2025 10:00 - 11:00 1457 MW

07-07-2025 11:00 - 12:00 1457 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 unplanned maintenance

Potential service disruption

by JAO

Dear Market Participants,

We are currently experiencing issues in accessing the Auction Tool eCAT. Our IT department is actively working on solving the issue and if needed we will extend all open auctions to allow time for bidding.

Thank you for your understanding.

Best regards,

JAO Operations.

Bid Extensions for IT-CH and CH-IT Intraday 1224

by JAO

Due to technical issues, the CH-IT and IT-CH Intraday Auctions for market period 04/07/2025 12:00-24:00 has been extended. Bid submission gate closes at 9:40.

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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