Leading service provider for Transmission System Operators (TSOs) in the European electricity market.

Dear Market Participants,

Please note that, due to the partial decoupling of IDA 1, the data for the delivery date of 15/10/2025 will not be available for IDA 1.

Thank you for your understanding.

Best regards,

Operations Team

Dear Market Participants,

We invite you to join our upcoming test session for the new monthly products for the 3 borders : 

→ Ukraine-Slovakia: UA <> SK
→ Ukraine-Romania: UA <> RO (integrating new border)

→ Ukraine-Hungary: UA <> HU
 

The test is scheduled for 29th and 30th of October 2025. 

This event presents an excellent opportunity for you to engage in dummy auctions, thoroughly test your bid files and seamlessly integrate eCAT’s output files into your applications.

The target Go-Live date for the Project is December 2025 for the for the January 2026 monthly auctions.
 

The scope of this test session encompasses:

Long-term auctions: Monthly January 2025
 

To register for the test session, kindly send us the following information to helpdesk@jao.eu:

• Company name
• EIC code
• Username (if you are already registered in eCAT) or your name
• Email address
   

The registration for this test will conclude on 27^th of October. 

Further details concerning the exact date, timing, and the specific scenarios to be tested will be communicated in a subsequent notice.
 

Should you have any questions or wish to share feedback, please do not hesitate to reach out to us.

Your insights and participation are highly valued as we work together to enhance this process.
 

Best regards,

JAO Operations Team

Dear Market Participants,

Please be informed that the day-ahead market coupling session is now completed.

Best regards,
Operations Team

Dear Market Participants,

The Market Coupling process is delayed due to technical reasons or market issues.

Therefore, the publication of the final Market Coupling Results is delayed.

We advise you to update your shadow bids at JAO eCAT platform before 14:10 CET/CEST.

Best regards,
Operations Team

Dear Market Participants,

Please be aware that the publication of the Market Coupling Results is delayed until further notice. 

The Market Coupling Results will be published as soon as they are available.  

Therefore, if relevant, we advise you to update your shadow bids at JAO eCAT platform before 14:10 CET/CEST.

Best regards,
Operations Team

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:

15-10-2025 00:00 - 01:00 1750 MW

15-10-2025 01:00 - 02:00 1750 MW

15-10-2025 02:00 - 03:00 1750 MW

15-10-2025 03:00 - 04:00 1750 MW

15-10-2025 04:00 - 05:00 1750 MW

15-10-2025 05:00 - 06:00 1750 MW

15-10-2025 22:00 - 23:00 1750 MW

15-10-2025 23:00 - 24:00 1750 MW

5. Amount of LTTR remaining after curtailment:

15-10-2025 00:00 - 01:00 1568 MW

15-10-2025 01:00 - 02:00 1568 MW

15-10-2025 02:00 - 03:00 1568 MW

15-10-2025 03:00 - 04:00 1568 MW

15-10-2025 04:00 - 05:00 1568 MW

15-10-2025 05:00 - 06:00 1568 MW

15-10-2025 22:00 - 23:00 1568 MW

15-10-2025 23:00 - 24:00 1568 MW

6. Information on exact operational limit(s) that are expected to be violated in the absence of curtailment : 15/10/2025 00:00-01:00 argia-arkale 1 01:00-02:00 argia-arkale 1 02:00-03:00 argia-arkale 1 03:00-04:00 argia-arkale 1 04:00-05:00 argia-arkale 1 05:00-06:00 argia-arkale 1 22:00-23:00 argia-arkale 1 23:00-24:00 argia-arkale 1 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

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:

16-10-2025 00:00 - 01:00 939 MW

16-10-2025 01:00 - 02:00 939 MW

16-10-2025 02:00 - 03:00 939 MW

16-10-2025 03:00 - 04:00 939 MW

16-10-2025 04:00 - 05:00 939 MW

16-10-2025 05:00 - 06:00 939 MW

16-10-2025 06:00 - 07:00 939 MW

16-10-2025 07:00 - 08:00 939 MW

16-10-2025 08:00 - 09:00 939 MW

16-10-2025 09:00 - 10:00 939 MW

16-10-2025 10:00 - 11:00 939 MW

5. Amount of LTTR remaining after curtailment:

16-10-2025 00:00 - 01:00 0 MW

16-10-2025 01:00 - 02:00 0 MW

16-10-2025 02:00 - 03:00 0 MW

16-10-2025 03:00 - 04:00 0 MW

16-10-2025 04:00 - 05:00 0 MW

16-10-2025 05:00 - 06:00 0 MW

16-10-2025 06:00 - 07:00 0 MW

16-10-2025 07:00 - 08:00 0 MW

16-10-2025 08:00 - 09:00 0 MW

16-10-2025 09:00 - 10:00 0 MW

16-10-2025 10:00 - 11:00 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