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

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:

02-06-2026 00:00 - 01:00 1690 MW

02-06-2026 01:00 - 02:00 1690 MW

02-06-2026 02:00 - 03:00 1690 MW

02-06-2026 03:00 - 04:00 1690 MW

02-06-2026 04:00 - 05:00 1690 MW

02-06-2026 05:00 - 06:00 1690 MW

02-06-2026 06:00 - 07:00 1690 MW

02-06-2026 07:00 - 08:00 1690 MW

02-06-2026 08:00 - 09:00 1690 MW

02-06-2026 09:00 - 10:00 1690 MW

02-06-2026 10:00 - 11:00 1690 MW

02-06-2026 11:00 - 12:00 1690 MW

02-06-2026 12:00 - 13:00 1690 MW

02-06-2026 13:00 - 14:00 1690 MW

02-06-2026 14:00 - 15:00 1690 MW

02-06-2026 15:00 - 16:00 1690 MW

02-06-2026 16:00 - 17:00 1690 MW

02-06-2026 17:00 - 18:00 1690 MW

02-06-2026 18:00 - 19:00 1690 MW

02-06-2026 19:00 - 20:00 1690 MW

02-06-2026 20:00 - 21:00 1690 MW

02-06-2026 21:00 - 22:00 1690 MW

02-06-2026 22:00 - 23:00 1690 MW

02-06-2026 23:00 - 24:00 1690 MW

5. Amount of LTTR remaining after curtailment:

02-06-2026 00:00 - 01:00 1434 MW

02-06-2026 01:00 - 02:00 1434 MW

02-06-2026 02:00 - 03:00 1434 MW

02-06-2026 03:00 - 04:00 1434 MW

02-06-2026 04:00 - 05:00 1434 MW

02-06-2026 05:00 - 06:00 1434 MW

02-06-2026 06:00 - 07:00 1434 MW

02-06-2026 07:00 - 08:00 1434 MW

02-06-2026 08:00 - 09:00 1434 MW

02-06-2026 09:00 - 10:00 1434 MW

02-06-2026 10:00 - 11:00 1434 MW

02-06-2026 11:00 - 12:00 1434 MW

02-06-2026 12:00 - 13:00 1434 MW

02-06-2026 13:00 - 14:00 1434 MW

02-06-2026 14:00 - 15:00 1434 MW

02-06-2026 15:00 - 16:00 1434 MW

02-06-2026 16:00 - 17:00 1434 MW

02-06-2026 17:00 - 18:00 1434 MW

02-06-2026 18:00 - 19:00 1434 MW

02-06-2026 19:00 - 20:00 1434 MW

02-06-2026 20:00 - 21:00 1434 MW

02-06-2026 21:00 - 22:00 1434 MW

02-06-2026 22:00 - 23:00 1434 MW

02-06-2026 23:00 - 24:00 1434 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

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:

02-06-2026 00:00 - 01:00 1700 MW

02-06-2026 01:00 - 02:00 1700 MW

02-06-2026 02:00 - 03:00 1700 MW

02-06-2026 03:00 - 04:00 1700 MW

02-06-2026 04:00 - 05:00 1700 MW

02-06-2026 05:00 - 06:00 1700 MW

02-06-2026 06:00 - 07:00 1700 MW

02-06-2026 07:00 - 08:00 1700 MW

02-06-2026 08:00 - 09:00 1700 MW

02-06-2026 09:00 - 10:00 1700 MW

02-06-2026 10:00 - 11:00 1700 MW

02-06-2026 11:00 - 12:00 1700 MW

02-06-2026 12:00 - 13:00 1700 MW

02-06-2026 13:00 - 14:00 1700 MW

02-06-2026 14:00 - 15:00 1700 MW

02-06-2026 15:00 - 16:00 1700 MW

02-06-2026 16:00 - 17:00 1700 MW

02-06-2026 17:00 - 18:00 1700 MW

02-06-2026 18:00 - 19:00 1700 MW

02-06-2026 19:00 - 20:00 1700 MW

02-06-2026 20:00 - 21:00 1700 MW

02-06-2026 21:00 - 22:00 1700 MW

02-06-2026 22:00 - 23:00 1700 MW

02-06-2026 23:00 - 24:00 1700 MW

5. Amount of LTTR remaining after curtailment:

02-06-2026 00:00 - 01:00 1452 MW

02-06-2026 01:00 - 02:00 1452 MW

02-06-2026 02:00 - 03:00 1452 MW

02-06-2026 03:00 - 04:00 1452 MW

02-06-2026 04:00 - 05:00 1452 MW

02-06-2026 05:00 - 06:00 1452 MW

02-06-2026 06:00 - 07:00 1452 MW

02-06-2026 07:00 - 08:00 1452 MW

02-06-2026 08:00 - 09:00 1452 MW

02-06-2026 09:00 - 10:00 1452 MW

02-06-2026 10:00 - 11:00 1452 MW

02-06-2026 11:00 - 12:00 1452 MW

02-06-2026 12:00 - 13:00 1452 MW

02-06-2026 13:00 - 14:00 1452 MW

02-06-2026 14:00 - 15:00 1452 MW

02-06-2026 15:00 - 16:00 1452 MW

02-06-2026 16:00 - 17:00 1452 MW

02-06-2026 17:00 - 18:00 1452 MW

02-06-2026 18:00 - 19:00 1452 MW

02-06-2026 19:00 - 20:00 1452 MW

02-06-2026 20:00 - 21:00 1452 MW

02-06-2026 21:00 - 22:00 1452 MW

02-06-2026 22:00 - 23:00 1452 MW

02-06-2026 23:00 - 24:00 1452 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

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:

21-05-2026 09:00 - 10:00 400 MW

21-05-2026 10:00 - 11:00 400 MW

21-05-2026 11:00 - 12:00 400 MW

21-05-2026 12:00 - 13:00 400 MW

21-05-2026 13:00 - 14:00 400 MW

21-05-2026 14:00 - 15:00 400 MW

21-05-2026 15:00 - 16:00 400 MW

21-05-2026 16:00 - 17:00 400 MW

5. Amount of LTTR remaining after curtailment:

21-05-2026 09:00 - 10:00 0 MW

21-05-2026 10:00 - 11:00 0 MW

21-05-2026 11:00 - 12:00 0 MW

21-05-2026 12:00 - 13:00 0 MW

21-05-2026 13:00 - 14:00 0 MW

21-05-2026 14:00 - 15:00 0 MW

21-05-2026 15:00 - 16:00 0 MW

21-05-2026 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

Dear Market Participants,

The Swiss border TSOs together with JAO are pleased to announce the introduction of Short term auctions on Swiss borders in 15 min MTU. The go live of this change is provisionally scheduled for Delivery Date 02 September 2026 for DA and ID auctions on CH<>FR, CH<>DE and CH<>IT borders. The change on CH<>AT border is planned to be introduced in Q4 2026, with an exact date to be communicated at a later stage.​ Please note that the scheduled go live is conditional the Allocation Rules approval by respective NRAs as well as the successful completion of all tests. If the schedule has to be revised as a result, the project parties will communicate this clearly in the course of July 2026.

With the introduction of 15 min MTU there will be also a possibility to place your bids using Block Bids solution. Please refer to the attached Benders Decomposition Design document, which explains in detail the concept of Block bids.

The harmonization of CH borders auctions with SDAC coupled markets aims at creating consistency across European energy markets and enhance efficiency in electricity balancing processes.

As a preparation for this go-live JAO will offer the possibility to test this solution during the upcoming Open Test Session, which will take place on 17-19/06/2026.

During those 3 days Market Participants are invited to actively participate, test your systems, bidding strategy or usage of Block bids in the mentioned auctions.

Please be informed that the registration for the Open Test Session is mandatory for participation. More information about the registration dates and details about the test itself will be shared in a separate communication.

1. TSO(s)*:

TenneT_NL

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:

21-05-2026 08:00 - 09:00 199 MW

21-05-2026 09:00 - 10:00 199 MW

21-05-2026 10:00 - 11:00 199 MW

21-05-2026 11:00 - 12:00 199 MW

21-05-2026 12:00 - 13:00 199 MW

21-05-2026 13:00 - 14:00 199 MW

21-05-2026 14:00 - 15:00 199 MW

21-05-2026 15:00 - 16:00 199 MW

21-05-2026 16:00 - 17:00 199 MW

21-05-2026 17:00 - 18:00 199 MW

5. Amount of LTTR remaining after curtailment:

21-05-2026 08:00 - 09:00 0 MW

21-05-2026 09:00 - 10:00 0 MW

21-05-2026 10:00 - 11:00 0 MW

21-05-2026 11:00 - 12:00 0 MW

21-05-2026 12:00 - 13:00 0 MW

21-05-2026 13:00 - 14:00 0 MW

21-05-2026 14:00 - 15:00 0 MW

21-05-2026 15:00 - 16:00 0 MW

21-05-2026 16:00 - 17:00 0 MW

21-05-2026 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).

Please be informed that PUTO will be unavailable due to a maintenance from 17:00 to 17:30 CEST today (19/05/ 2026 ).

We would like to apologies for any inconvenience this may have caused.

Thank you.

JAO Operations

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:

20-05-2026 20:00 - 21:00 440 MW

20-05-2026 21:00 - 22:00 440 MW

20-05-2026 22:00 - 23:00 440 MW

20-05-2026 23:00 - 24:00 440 MW

5. Amount of LTTR remaining after curtailment:

20-05-2026 20:00 - 21:00 405 MW

20-05-2026 21:00 - 22:00 405 MW

20-05-2026 22:00 - 23:00 405 MW

20-05-2026 23:00 - 24:00 405 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 alread allocated on The Baltic balancing Market for balancing capacity sharing at Transparency Platform

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

There are no alternatives 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