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

Dear Market Participants,

We would like to inform you that in anticipation of the upcoming go-live of the North Sea Link Interconnector on JAO’s platform and after the closure of the relevant public consultations, the following provisional document has been published on our website:

• NSL Long Term Allocation Rules

Please note that this document is published on behalf of National Grid NSL Ltd (“NGNSL”) and is subject to approval by the competent National Regulatory Authority (“Ofgem”). The rules will be binding once Ofgem has approved them.

The first monthly auctions for the October 2026 delivery period are planned to go live on 17 September 2026, with quarterly and yearly auctions to follow later in 2026.

Registration for participation in these auctions is now open.

Action required:

• Existing Market Participants: If you are already registered with JAO, please be informed that the updated Amendment no. 28 to the Participation Agreement is available on our website. To receive the entitlements for the North Sea Link Interconnector, please accept the NSL Long Term Allocation Rules in Amendment no. 28.
   
• New Market Participants: For new registrations, please accept the NSL Long Term Allocation Rules during your registration via JAO Support Hub to receive the entitlements for the North Sea Link Interconnector.

For both new registrations and amendments to your Participation Agreement, please visit JAO Support Hub (support.jao.eu).

1. TSO(s)*:

RTE-TSO

2. Identification of affected Long Term Transmission Rights:

ES-FR

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

07-07-2026 15:00 - 16:00 750 MW

07-07-2026 16:00 - 17:00 750 MW

07-07-2026 17:00 - 18:00 750 MW

5. Amount of LTTR remaining after curtailment:

07-07-2026 15:00 - 16:00 384 MW

07-07-2026 16:00 - 17:00 384 MW

07-07-2026 17:00 - 18:00 384 MW

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

   07/07/2026

      15:00-16:00 Network Security

      16:00-17:00 Network Security

      17:00-18:00 Network Security

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)*:

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:

05-07-2026 08:00 - 09:00 250 MW

05-07-2026 09:00 - 10:00 250 MW

05-07-2026 10:00 - 11:00 250 MW

05-07-2026 11:00 - 12:00 250 MW

05-07-2026 12:00 - 13:00 250 MW

05-07-2026 13:00 - 14:00 250 MW

05-07-2026 14:00 - 15:00 250 MW

05-07-2026 15:00 - 16:00 250 MW

05-07-2026 16:00 - 17:00 250 MW

5. Amount of LTTR remaining after curtailment:

05-07-2026 08:00 - 09:00 0 MW

05-07-2026 09:00 - 10:00 0 MW

05-07-2026 10:00 - 11:00 0 MW

05-07-2026 11:00 - 12:00 0 MW

05-07-2026 12:00 - 13:00 0 MW

05-07-2026 13:00 - 14:00 0 MW

05-07-2026 14:00 - 15:00 0 MW

05-07-2026 15:00 - 16:00 0 MW

05-07-2026 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 cable ARACTHOS – GALATINA

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

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:

05-07-2026 08:00 - 09:00 400 MW

05-07-2026 09:00 - 10:00 400 MW

05-07-2026 10:00 - 11:00 400 MW

05-07-2026 11:00 - 12:00 400 MW

05-07-2026 12:00 - 13:00 400 MW

05-07-2026 13:00 - 14:00 400 MW

05-07-2026 14:00 - 15:00 400 MW

05-07-2026 15:00 - 16:00 400 MW

05-07-2026 16:00 - 17:00 400 MW

5. Amount of LTTR remaining after curtailment:

05-07-2026 08:00 - 09:00 0 MW

05-07-2026 09:00 - 10:00 0 MW

05-07-2026 10:00 - 11:00 0 MW

05-07-2026 11:00 - 12:00 0 MW

05-07-2026 12:00 - 13:00 0 MW

05-07-2026 13:00 - 14:00 0 MW

05-07-2026 14:00 - 15:00 0 MW

05-07-2026 15:00 - 16:00 0 MW

05-07-2026 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

As part of the ongoing technical preparation, Ukrainian intraday auctions (UA-SK and UA-HU) are already visible in eCAT. Please note that until the commercial go-live, no capacity will be offered through these auctions.

We kindly ask you to disregard these auctions until further notice.

We will share additional information regarding the commercial go-live and the availability of these products soon.

We are pleased to invite you to participate in upcoming LTFBA test sessions scheduled as follows:

• Yearly Auction Test Session (CORE  & Nordic Regions): 9 July 2026
• Monthly Auction Test Session (CORE  & Nordic Regions): 10 July 2026

These sessions are intended to provide Market Participants with the opportunity to:

• Familiarise themselves with the LTFBA auction setup
• Navigate the platform and explore its functionalities
• Submit and manage bids within the tool

Please note that these sessions are dedicated to practical testing within our Auction tool's test environment, allowing participants to actively interact with the system and validate their processes.

Registration

Market Participants interested in joining are kindly requested to register by replying to this email with the following information:

• Company name
• EIC code
• Name of participant(s)
• Email address(es)
• eCAT username(s) (if available)

Further details, including access information and session timelines, will be shared with registered participants ahead of the test dates.

Should you have any questions, please do not hesitate to contact us.
We look forward to your participation.

1. TSO(s)*:

RTE-TSO

2. Identification of affected Long Term Transmission Rights:

ES-FR

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

03-07-2026 00:00 - 01:00 1280 MW

03-07-2026 01:00 - 02:00 1280 MW

03-07-2026 02:00 - 03:00 1280 MW

03-07-2026 03:00 - 04:00 1280 MW

03-07-2026 04:00 - 05:00 1280 MW

03-07-2026 05:00 - 06:00 1280 MW

03-07-2026 07:00 - 08:00 1280 MW

03-07-2026 08:00 - 09:00 1280 MW

03-07-2026 09:00 - 10:00 1280 MW

03-07-2026 10:00 - 11:00 1280 MW

03-07-2026 11:00 - 12:00 1280 MW

03-07-2026 12:00 - 13:00 1280 MW

03-07-2026 13:00 - 14:00 1280 MW

03-07-2026 14:00 - 15:00 1280 MW

03-07-2026 15:00 - 16:00 1280 MW

03-07-2026 16:00 - 17:00 1280 MW

03-07-2026 17:00 - 18:00 1280 MW

03-07-2026 18:00 - 19:00 1280 MW

5. Amount of LTTR remaining after curtailment:

03-07-2026 00:00 - 01:00 919 MW

03-07-2026 01:00 - 02:00 919 MW

03-07-2026 02:00 - 03:00 919 MW

03-07-2026 03:00 - 04:00 919 MW

03-07-2026 04:00 - 05:00 963 MW

03-07-2026 05:00 - 06:00 963 MW

03-07-2026 07:00 - 08:00 460 MW

03-07-2026 08:00 - 09:00 460 MW

03-07-2026 09:00 - 10:00 460 MW

03-07-2026 10:00 - 11:00 460 MW

03-07-2026 11:00 - 12:00 460 MW

03-07-2026 12:00 - 13:00 460 MW

03-07-2026 13:00 - 14:00 460 MW

03-07-2026 14:00 - 15:00 460 MW

03-07-2026 15:00 - 16:00 460 MW

03-07-2026 16:00 - 17:00 460 MW

03-07-2026 17:00 - 18:00 460 MW

03-07-2026 18:00 - 19:00 460 MW

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

   03/07/2026

      00:00-01:00 Network Security

      01:00-02:00 Network Security

      02:00-03:00 Network Security

      03:00-04:00 Network Security

      04:00-05:00 Network Security

      05:00-06:00 Network Security

      07:00-08:00 Balaruc-Montpellier 225kV

      08:00-09:00 Balaruc-Montpellier 225kV

      09:00-10:00 Balaruc-Montpellier 225kV

      10:00-11:00 Balaruc-Montpellier 225kV

      11:00-12:00 Balaruc-Montpellier 225kV

      12:00-13:00 Balaruc-Montpellier 225kV

      13:00-14:00 Balaruc-Montpellier 225kV

      14:00-15:00 Balaruc-Montpellier 225kV

      15:00-16:00 Balaruc-Montpellier 225kV

      16:00-17:00 Balaruc-Montpellier 225kV

      17:00-18:00 Balaruc-Montpellier 225kV

      18:00-19:00 Balaruc-Montpellier 225kV

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