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

After receiving further feedback regarding the integration of block bids, we would like to provide the following clarifications in the attached documents:

• JAO_Blockbids_Benders Explained pdf: This is the updated “Benders Decomposition Design” document which includes final Business Rules and Tie-Breaking rules decided by the TSOs and provides clear results for the Examples 1,4,6 and 6bis
• Block bids – additional explanation pdf: This document includes further explanation regarding the Example 5, as well as additional information on system stability

We trust that the above clarifications are helpful.

JAO, on behalf of the TSOs

1. TSO(s)*:

CGES

2. Identification of affected Long Term Transmission Rights:

IT-ME

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

19-02-2026 07:00 - 08:00 400 MW

19-02-2026 08:00 - 09:00 400 MW

19-02-2026 09:00 - 10:00 400 MW

19-02-2026 10:00 - 11:00 400 MW

19-02-2026 11:00 - 12:00 400 MW

19-02-2026 12:00 - 13:00 400 MW

19-02-2026 13:00 - 14:00 400 MW

19-02-2026 14:00 - 15:00 400 MW

19-02-2026 15:00 - 16:00 400 MW

19-02-2026 16:00 - 17:00 400 MW

5. Amount of LTTR remaining after curtailment:

19-02-2026 07:00 - 08:00 0 MW

19-02-2026 08:00 - 09:00 0 MW

19-02-2026 09:00 - 10:00 0 MW

19-02-2026 10:00 - 11:00 0 MW

19-02-2026 11:00 - 12:00 0 MW

19-02-2026 12:00 - 13:00 0 MW

19-02-2026 13:00 - 14:00 0 MW

19-02-2026 14:00 - 15:00 0 MW

19-02-2026 15:00 - 16:00 0 MW

19-02-2026 16:00 - 17:00 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

*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)*:

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:

19-02-2026 07:00 - 08:00 399 MW

19-02-2026 08:00 - 09:00 399 MW

19-02-2026 09:00 - 10:00 399 MW

19-02-2026 10:00 - 11:00 399 MW

19-02-2026 11:00 - 12:00 399 MW

19-02-2026 12:00 - 13:00 399 MW

19-02-2026 13:00 - 14:00 399 MW

19-02-2026 14:00 - 15:00 399 MW

19-02-2026 15:00 - 16:00 399 MW

19-02-2026 16:00 - 17:00 399 MW

5. Amount of LTTR remaining after curtailment:

19-02-2026 07:00 - 08:00 0 MW

19-02-2026 08:00 - 09:00 0 MW

19-02-2026 09:00 - 10:00 0 MW

19-02-2026 10:00 - 11:00 0 MW

19-02-2026 11:00 - 12:00 0 MW

19-02-2026 12:00 - 13:00 0 MW

19-02-2026 13:00 - 14:00 0 MW

19-02-2026 14:00 - 15:00 0 MW

19-02-2026 15:00 - 16:00 0 MW

19-02-2026 16:00 - 17:00 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

*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:

GR-IT

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

18-02-2026 10:00 - 11:00 500 MW

18-02-2026 11:00 - 12:00 500 MW

18-02-2026 12:00 - 13:00 500 MW

18-02-2026 13:00 - 14:00 500 MW

18-02-2026 14:00 - 15:00 500 MW

5. Amount of LTTR remaining after curtailment:

18-02-2026 10:00 - 11:00 0 MW

18-02-2026 11:00 - 12:00 0 MW

18-02-2026 12:00 - 13:00 0 MW

18-02-2026 13:00 - 14:00 0 MW

18-02-2026 14:00 - 15:00 0 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 in the calculation

*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:

AT-IT

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

18-02-2026 15:00 - 16:00 176 MW

5. Amount of LTTR remaining after curtailment:

18-02-2026 15:00 - 16:00 156 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 in the calculation

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

We would like to inform you that the issue affecting our data publication to the ENTSO-E Transparency Platform has now been solved. We apologize for any inconvenience this may have caused and thank you for your understanding.

We are delighted to inform you that the LTFBA Simulation Platform is now available for testing purposes.

This event presents an excellent opportunity for you to test out the Simulation Platform continuously and will allow you to verify the flow-based capacity parameters and simulate long-term flow-based auctions.

You can access the platform via the following link :  https://ltfba-sp.jao.eu/login

The User Guide for the Simulation platform is attached to this message. It details the Login instructions and gives you an overview on the Simulation Platform input files.

Once you access the Platform, please ensure you introduce your username and password (identical to your eCAT credentials).

On the login page form,  you will need to reset the password.

The Simulation Platform supports the upload of two formats for the bid files:

• ECAN v4 XML bid document

• XLSX bid document

Should you have any questions or wish to share feedback, please do not hesitate to reach out to us via our ticketing platform. Your insights and participation are highly valued as we work together to enhance this process.