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

1. TSO(s)*:

AST

2. Identification of affected Long Term Transmission Rights:

EE-LV

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

18-05-2026 06:00 - 07:00 440 MW

18-05-2026 07:00 - 08:00 440 MW

18-05-2026 08:00 - 09:00 440 MW

18-05-2026 09:00 - 10:00 440 MW

18-05-2026 10:00 - 11:00 440 MW

18-05-2026 11:00 - 12:00 440 MW

18-05-2026 12:00 - 13:00 440 MW

18-05-2026 13:00 - 14:00 440 MW

18-05-2026 14:00 - 15:00 440 MW

18-05-2026 16:00 - 17:00 440 MW

18-05-2026 17:00 - 18:00 440 MW

5. Amount of LTTR remaining after curtailment:

18-05-2026 06:00 - 07:00 403 MW

18-05-2026 07:00 - 08:00 403 MW

18-05-2026 08:00 - 09:00 400 MW

18-05-2026 09:00 - 10:00 403 MW

18-05-2026 10:00 - 11:00 404 MW

18-05-2026 11:00 - 12:00 402 MW

18-05-2026 12:00 - 13:00 399 MW

18-05-2026 13:00 - 14:00 400 MW

18-05-2026 14:00 - 15:00 398 MW

18-05-2026 16:00 - 17:00 400 MW

18-05-2026 17:00 - 18:00 402 MW

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

Nord Pool - UMM Platform, as well as the capacity already allocated on the Baltic Balancing Market for balancing capacity sharing athttps://baltic.transparency-dashboard.eu/node/108

7. Why alternative measures are not sufficient to avoid the expected violation of operational security limit(s)*?

There is no alternative to the curtailment of the affected LTTRs.

*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)*:

National Grid

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:

30-05-2026 00:00 - 01:00 1889 MW

30-05-2026 01:00 - 02:00 1889 MW

30-05-2026 02:00 - 03:00 1889 MW

30-05-2026 03:00 - 04:00 1889 MW

30-05-2026 04:00 - 05:00 1889 MW

30-05-2026 05:00 - 06:00 1889 MW

30-05-2026 06:00 - 07:00 1889 MW

30-05-2026 07:00 - 08:00 1889 MW

30-05-2026 08:00 - 09:00 1889 MW

30-05-2026 09:00 - 10:00 1889 MW

30-05-2026 10:00 - 11:00 1889 MW

30-05-2026 11:00 - 12:00 1889 MW

30-05-2026 12:00 - 13:00 1889 MW

30-05-2026 13:00 - 14:00 1889 MW

30-05-2026 14:00 - 15:00 1889 MW

30-05-2026 15:00 - 16:00 1889 MW

30-05-2026 16:00 - 17:00 1889 MW

30-05-2026 17:00 - 18:00 1889 MW

30-05-2026 18:00 - 19:00 1889 MW

30-05-2026 19:00 - 20:00 1889 MW

30-05-2026 20:00 - 21:00 1889 MW

30-05-2026 21:00 - 22:00 1889 MW

30-05-2026 22:00 - 23:00 1889 MW

30-05-2026 23:00 - 24:00 1889 MW

5. Amount of LTTR remaining after curtailment:

30-05-2026 00:00 - 01:00 1416 MW

30-05-2026 01:00 - 02:00 1416 MW

30-05-2026 02:00 - 03:00 1416 MW

30-05-2026 03:00 - 04:00 1416 MW

30-05-2026 04:00 - 05:00 1416 MW

30-05-2026 05:00 - 06:00 1416 MW

30-05-2026 06:00 - 07:00 1416 MW

30-05-2026 07:00 - 08:00 1416 MW

30-05-2026 08:00 - 09:00 1416 MW

30-05-2026 09:00 - 10:00 1416 MW

30-05-2026 10:00 - 11:00 1416 MW

30-05-2026 11:00 - 12:00 1416 MW

30-05-2026 12:00 - 13:00 1416 MW

30-05-2026 13:00 - 14:00 1416 MW

30-05-2026 14:00 - 15:00 1416 MW

30-05-2026 15:00 - 16:00 1416 MW

30-05-2026 16:00 - 17:00 1416 MW

30-05-2026 17:00 - 18:00 1416 MW

30-05-2026 18:00 - 19:00 1416 MW

30-05-2026 19:00 - 20:00 1416 MW

30-05-2026 20:00 - 21:00 1416 MW

30-05-2026 21:00 - 22:00 1416 MW

30-05-2026 22:00 - 23:00 1416 MW

30-05-2026 23:00 - 24:00 1416 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

*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)*:

National Grid

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:

30-05-2026 00:00 - 01:00 1900 MW

30-05-2026 01:00 - 02:00 1900 MW

30-05-2026 02:00 - 03:00 1900 MW

30-05-2026 03:00 - 04:00 1900 MW

30-05-2026 04:00 - 05:00 1900 MW

30-05-2026 05:00 - 06:00 1900 MW

30-05-2026 06:00 - 07:00 1900 MW

30-05-2026 07:00 - 08:00 1900 MW

30-05-2026 08:00 - 09:00 1900 MW

30-05-2026 09:00 - 10:00 1900 MW

30-05-2026 10:00 - 11:00 1900 MW

30-05-2026 11:00 - 12:00 1900 MW

30-05-2026 12:00 - 13:00 1900 MW

30-05-2026 13:00 - 14:00 1900 MW

30-05-2026 14:00 - 15:00 1900 MW

30-05-2026 15:00 - 16:00 1900 MW

30-05-2026 16:00 - 17:00 1900 MW

30-05-2026 17:00 - 18:00 1900 MW

30-05-2026 18:00 - 19:00 1900 MW

30-05-2026 19:00 - 20:00 1900 MW

30-05-2026 20:00 - 21:00 1900 MW

30-05-2026 21:00 - 22:00 1900 MW

30-05-2026 22:00 - 23:00 1900 MW

30-05-2026 23:00 - 24:00 1900 MW

5. Amount of LTTR remaining after curtailment:

30-05-2026 00:00 - 01:00 1448 MW

30-05-2026 01:00 - 02:00 1448 MW

30-05-2026 02:00 - 03:00 1448 MW

30-05-2026 03:00 - 04:00 1448 MW

30-05-2026 04:00 - 05:00 1448 MW

30-05-2026 05:00 - 06:00 1448 MW

30-05-2026 06:00 - 07:00 1448 MW

30-05-2026 07:00 - 08:00 1448 MW

30-05-2026 08:00 - 09:00 1448 MW

30-05-2026 09:00 - 10:00 1448 MW

30-05-2026 10:00 - 11:00 1448 MW

30-05-2026 11:00 - 12:00 1448 MW

30-05-2026 12:00 - 13:00 1448 MW

30-05-2026 13:00 - 14:00 1448 MW

30-05-2026 14:00 - 15:00 1448 MW

30-05-2026 15:00 - 16:00 1448 MW

30-05-2026 16:00 - 17:00 1448 MW

30-05-2026 17:00 - 18:00 1448 MW

30-05-2026 18:00 - 19:00 1448 MW

30-05-2026 19:00 - 20:00 1448 MW

30-05-2026 20:00 - 21:00 1448 MW

30-05-2026 21:00 - 22:00 1448 MW

30-05-2026 22:00 - 23:00 1448 MW

30-05-2026 23:00 - 24:00 1448 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

*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)*:

TenneT TSO B.V.

2. Identification of affected Long Term Transmission Rights:

DK-NL

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

18-05-2026 08:00 - 09:00 199 MW

18-05-2026 09:00 - 10:00 199 MW

18-05-2026 10:00 - 11:00 199 MW

18-05-2026 11:00 - 12:00 199 MW

18-05-2026 12:00 - 13:00 199 MW

18-05-2026 13:00 - 14:00 199 MW

18-05-2026 14:00 - 15:00 199 MW

18-05-2026 15:00 - 16:00 199 MW

18-05-2026 16:00 - 17:00 199 MW

18-05-2026 17:00 - 18:00 199 MW

5. Amount of LTTR remaining after curtailment:

18-05-2026 08:00 - 09:00 0 MW

18-05-2026 09:00 - 10:00 0 MW

18-05-2026 10:00 - 11:00 0 MW

18-05-2026 11:00 - 12:00 0 MW

18-05-2026 12:00 - 13:00 0 MW

18-05-2026 13:00 - 14:00 0 MW

18-05-2026 14:00 - 15:00 0 MW

18-05-2026 15:00 - 16:00 0 MW

18-05-2026 16:00 - 17:00 0 MW

18-05-2026 17:00 - 18:00 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)*?

The remedial actions considered were assessed as not sufficient or ineffective 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

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:

18-05-2026 11:00 - 12:00 400 MW

18-05-2026 12:00 - 13:00 400 MW

18-05-2026 13:00 - 14:00 400 MW

18-05-2026 14:00 - 15:00 400 MW

5. Amount of LTTR remaining after curtailment:

18-05-2026 11:00 - 12:00 0 MW

18-05-2026 12:00 - 13:00 0 MW

18-05-2026 13:00 - 14:00 0 MW

18-05-2026 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*:

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:

IT-ME

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

18-05-2026 11:00 - 12:00 400 MW

18-05-2026 12:00 - 13:00 400 MW

5. Amount of LTTR remaining after curtailment:

18-05-2026 11:00 - 12:00 0 MW

18-05-2026 12:00 - 13:00 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)*:

SWISSGRID

2. Identification of affected Long Term Transmission Rights:

CH-IT

3. Triggering event:

Curtailment due to Curtailment to ensure operation remains within Operational Security Limits

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

17-05-2026 09:00 - 10:00 282 MW

17-05-2026 10:00 - 11:00 282 MW

17-05-2026 11:00 - 12:00 282 MW

17-05-2026 12:00 - 13:00 282 MW

17-05-2026 13:00 - 14:00 282 MW

17-05-2026 14:00 - 15:00 282 MW

17-05-2026 15:00 - 16:00 282 MW

5. Amount of LTTR remaining after curtailment:

17-05-2026 09:00 - 10:00 0 MW

17-05-2026 10:00 - 11:00 0 MW

17-05-2026 11:00 - 12:00 0 MW

17-05-2026 12:00 - 13:00 0 MW

17-05-2026 13:00 - 14:00 0 MW

17-05-2026 14:00 - 15:00 0 MW

17-05-2026 15:00 - 16:00 0 MW