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

As previously mentioned here http://www.jao.eu/news/update-november-and-december-invoice-information we have identified a possible calculation inconsistency related to rounding, which may marginally affect the values shown on the November and December invoices. The issue is also present in January invoices.

However, a fix has been deployed, and we are currently working on the recalculation of all three invoices to issue a correction.

In the meantime, the recalculation for November has already been completed and our billing department will reach out soon with the amended invoices.

We apologize for any inconvenience this may cause and appreciate your understanding while we work to address this promptly.

Feel free to contact us in case further detailed information is needed.

Kind regards,

JAO Operations

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

Dear all,

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

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

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

Best regards,

Dear Market Participants,

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

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

If needed, another delay message will be sent out.

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)*:

TERNA

2. Identification of affected Long Term Transmission Rights:

IT-CH

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

21-01-2026 06:00 - 07:00 927 MW

21-01-2026 07:00 - 08:00 927 MW

21-01-2026 08:00 - 09:00 927 MW

21-01-2026 09:00 - 10:00 927 MW

21-01-2026 10:00 - 11:00 927 MW

5. Amount of LTTR remaining after curtailment:

21-01-2026 06:00 - 07:00 797 MW

21-01-2026 07:00 - 08:00 196 MW

21-01-2026 08:00 - 09:00 196 MW

21-01-2026 09:00 - 10:00 196 MW

21-01-2026 10:00 - 11:00 812 MW

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

Expected violation of operational security limits of physical transmission assets

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

*According to section 57.3 of the EU HAR, this field can be filled in within 24 hours after the initial publication

1. TSO(s)*:

TERNA

2. Identification of affected Long Term Transmission Rights:

IT-FR

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

21-01-2026 05:00 - 06:00 1495 MW

21-01-2026 06:00 - 07:00 1495 MW

21-01-2026 07:00 - 08:00 1495 MW

21-01-2026 08:00 - 09:00 1495 MW

21-01-2026 09:00 - 10:00 1495 MW

21-01-2026 10:00 - 11:00 1495 MW

21-01-2026 11:00 - 12:00 1495 MW

5. Amount of LTTR remaining after curtailment:

21-01-2026 05:00 - 06:00 1422 MW

21-01-2026 06:00 - 07:00 804 MW

21-01-2026 07:00 - 08:00 176 MW

21-01-2026 08:00 - 09:00 176 MW

21-01-2026 09:00 - 10:00 176 MW

21-01-2026 10:00 - 11:00 788 MW

21-01-2026 11:00 - 12:00 1400 MW

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

Expected violation of operational security limits of physical transmission assets

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

*According to section 57.3 of the EU HAR, this field can be filled in within 24 hours after the initial publication

1. TSO(s)*:

TERNA

2. Identification of affected Long Term Transmission Rights:

IT-SI

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

21-01-2026 06:00 - 07:00 334 MW

21-01-2026 07:00 - 08:00 334 MW

21-01-2026 08:00 - 09:00 334 MW

21-01-2026 09:00 - 10:00 334 MW

21-01-2026 10:00 - 11:00 334 MW

5. Amount of LTTR remaining after curtailment:

21-01-2026 06:00 - 07:00 274 MW

21-01-2026 07:00 - 08:00 63 MW

21-01-2026 08:00 - 09:00 63 MW

21-01-2026 09:00 - 10:00 63 MW

21-01-2026 10:00 - 11:00 288 MW

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

Expected violation of operational security limits of physical transmission assets

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

*According to section 57.3 of the EU HAR, this field can be filled in within 24 hours after the initial publication