See Our

Annual Report

Read here

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

Through our single trading platform we auction cross-border transmission capacity rights. We also provide accounting (clearing and settlement), contracting, reporting, project support and IT services.

Auctions

On behalf of TSOs, we organize long and short-term auctions of transmission capacity rights.

We offer the following products: yearly, seasonal, quarterly, monthly, weekly, daily and intraday.

Auction results Auction calendar

350+

Registered market participants
18k+

Auctions per year
84

Allocation borders - Explicit auctions
80

Allocation borders - Market Coupling (Congestion revenue distribution)
38

TSOs serviced

Latest market messages

Go to Message Board

Improvements in the Trader UI

Published: 30/03/2023 | 09:40by JAO
Capacity Curtailment on the AT-IT border for delivery 31-03-2023

Published: 30/03/2023 | 07:28by JAO
eCAT maintenance on 29/03/2023 from 18:00 to 19:00

Published: 29/03/2023 | 11:16by JAO
IFA Yearly 2024 (lIl) Auction OPENS TODAY!

Published: 29/03/2023 | 11:14by National Grid
Core TSOs update of static grid model

Published: 29/03/2023 | 10:28by JAO
Capacity Curtailment on the AT-IT border for delivery 30-03-2023

Published: 29/03/2023 | 07:46by JAO
Capacity Curtailment on the AT-IT border for delivery 29-03-2023

Published: 28/03/2023 | 07:42by JAO

Go to Message board

Dear Market Participants,

Please be informed that yesterday evening there was an update of our system which resulted in changes and improvements in the Trader UI, as listed below:

- New Entitlement screen which visualizes your long term, daily, intraday and shadow entitlements.

- "Reset password" button added to the log in page, which gives the possibility to reset the password without the need to contact JAO helpdesk.

- On the Bid screen only the matching intraday periods are displayed for the selected corridor.

- The weekly auction filter by the default displays the current week.

- Read-only users have now access to the Auction gates tab on the trader UI.

We hope that those changes improve your user experience.

Best regards,

Operations team

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:

31-03-2023 00:00 - 01:00 235 MW

31-03-2023 01:00 - 02:00 235 MW

31-03-2023 02:00 - 03:00 235 MW

31-03-2023 03:00 - 04:00 235 MW

31-03-2023 04:00 - 05:00 235 MW

31-03-2023 05:00 - 06:00 235 MW

31-03-2023 06:00 - 07:00 235 MW

31-03-2023 07:00 - 08:00 235 MW

31-03-2023 08:00 - 09:00 235 MW

31-03-2023 09:00 - 10:00 235 MW

31-03-2023 10:00 - 11:00 235 MW

31-03-2023 11:00 - 12:00 235 MW

31-03-2023 12:00 - 13:00 235 MW

31-03-2023 13:00 - 14:00 235 MW

31-03-2023 14:00 - 15:00 235 MW

31-03-2023 15:00 - 16:00 235 MW

31-03-2023 16:00 - 17:00 235 MW

31-03-2023 17:00 - 18:00 235 MW

31-03-2023 18:00 - 19:00 235 MW

31-03-2023 19:00 - 20:00 235 MW

31-03-2023 20:00 - 21:00 235 MW

31-03-2023 21:00 - 22:00 235 MW

31-03-2023 22:00 - 23:00 235 MW

31-03-2023 23:00 - 24:00 235 MW

5. Amount of LTTR remaining after curtailment:

31-03-2023 00:00 - 01:00 199 MW

31-03-2023 01:00 - 02:00 199 MW

31-03-2023 02:00 - 03:00 199 MW

31-03-2023 03:00 - 04:00 199 MW

31-03-2023 04:00 - 05:00 199 MW

31-03-2023 05:00 - 06:00 199 MW

31-03-2023 06:00 - 07:00 199 MW

31-03-2023 07:00 - 08:00 235 MW

31-03-2023 08:00 - 09:00 235 MW

31-03-2023 09:00 - 10:00 235 MW

31-03-2023 10:00 - 11:00 235 MW

31-03-2023 11:00 - 12:00 235 MW

31-03-2023 12:00 - 13:00 235 MW

31-03-2023 13:00 - 14:00 235 MW

31-03-2023 14:00 - 15:00 235 MW

31-03-2023 15:00 - 16:00 199 MW

31-03-2023 16:00 - 17:00 199 MW

31-03-2023 17:00 - 18:00 199 MW

31-03-2023 18:00 - 19:00 199 MW

31-03-2023 19:00 - 20:00 199 MW

31-03-2023 20:00 - 21:00 199 MW

31-03-2023 21:00 - 22:00 199 MW

31-03-2023 22:00 - 23:00 199 MW

31-03-2023 23:00 - 24:00 199 MW

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

7. Why alternative measures are not sufficient 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

Dear Market Participants,

Please note that the eCAT platform will be under maintenance today on Wednesday, 29/03/2023 from 18:00 to 19:00 CET.

During this time, the platform will be unavailable.

Best regards,

Operations Team

IFA Yearly 2024 (llI) Auction OPENS TODAY!

We would like to inform you that our IFA Yearly 2024 (IlI) Auction will open on JAO from the 29th of March – 30th of March 2023.

The auction details are as follows (Timing in CET):

Date of Auctions	29/03/2023 – 30/03/2023
Times of Auctions	FR-GB: 12:00 Hrs – 12:00 Hrs
Times of Auctions	GB-FR: 12:00 Hrs – 12:00 Hrs
Bidding Deadline (both directions)	12:00 Hrs 30/03/2023
Auction IDs	FR-GB: IF1-FR-GB-Y-BASE---240101-03
Auction IDs	GB-FR: IF1-GB-FR-Y-BASE---240101-03
Volume available	150 MW FR-GB
Volume available	150 MW GB-FR

If you require any further information about participating in this or any other IFA or IFA2 capacity auction, please contact the customer team:

(ifa.customerenquiries@nationalgrid.com)

Amsterdam, Berlin, Bucharest, Budapest, Bratislava, Brussel, Dortmund, Ljubljana, Luxembourg, Paris, Prague, Vienna, Warsaw, Zagreb March 29th, 2023

The Core Flow-Based Day-Ahead Capacity Calculation project (Core FB DA CC) parties would like to inform market participants of an update of the Core Static Grid Model (SGM) in accordance with Art 25(2)(f) of the Day-ahead capacity calculation methodology of the Core capacity calculation region. The aim of the publication of the SGM is to allow market participants to do market analyses in order to enhance efficiency in the market. The Core Static Grid Model is a list of relevant grid elements (Excel table) of the transmission system, including their electrical properties that is published every six months by the Core TSOs.

Answering to feedback provided by the Core NRAs and market participants, the current release includes a change log and a map providing a detailed view of the grid infrastructure in the Core region, including information on transmission lines, and other key technical characteristics.

The publication of the SGM is accompanied by a release of the Core Static Grid Model Handbook, which provides market participants with a comprehensive guide to the SGM.

The SGM, its Handbook and the map can be found on the JAO website [LINK].

Communication channels

Questions in relation to the Core FB MC project in general, the publications of the day-ahead Core Flow-Based Capacity Calculation inputs and outputs, as well as market coupling simulation results can be raised on the Q&A forum: http://coreforum.my-ems.net/

Market participants that would like to follow the project development closer, are invited to join the Core Consultative Group (CCG) subscribing on the following website [LINK]. The participants of the Core Consultative Group will receive regular information and invitations to teleconferences and meetings.

Best regards,

Core TSOs

1. TSO(s)*:

TERNA, SWISSGRID, RTE, APG, ELES

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:

30-03-2023 00:00 - 01:00 235 MW

30-03-2023 01:00 - 02:00 235 MW

30-03-2023 02:00 - 03:00 235 MW

30-03-2023 03:00 - 04:00 235 MW

30-03-2023 04:00 - 05:00 235 MW

30-03-2023 05:00 - 06:00 235 MW

30-03-2023 06:00 - 07:00 235 MW

30-03-2023 07:00 - 08:00 235 MW

30-03-2023 08:00 - 09:00 235 MW

30-03-2023 09:00 - 10:00 235 MW

30-03-2023 10:00 - 11:00 235 MW

30-03-2023 11:00 - 12:00 235 MW

30-03-2023 12:00 - 13:00 235 MW

30-03-2023 13:00 - 14:00 235 MW

30-03-2023 14:00 - 15:00 235 MW

30-03-2023 15:00 - 16:00 235 MW

30-03-2023 16:00 - 17:00 235 MW

30-03-2023 17:00 - 18:00 235 MW

30-03-2023 18:00 - 19:00 235 MW

30-03-2023 19:00 - 20:00 235 MW

30-03-2023 20:00 - 21:00 235 MW

30-03-2023 21:00 - 22:00 235 MW

30-03-2023 22:00 - 23:00 235 MW

30-03-2023 23:00 - 24:00 235 MW

5. Amount of LTTR remaining after curtailment:

30-03-2023 00:00 - 01:00 195 MW

30-03-2023 01:00 - 02:00 195 MW

30-03-2023 02:00 - 03:00 195 MW

30-03-2023 03:00 - 04:00 189 MW

30-03-2023 04:00 - 05:00 189 MW

30-03-2023 05:00 - 06:00 189 MW

30-03-2023 06:00 - 07:00 189 MW

30-03-2023 07:00 - 08:00 201 MW

30-03-2023 08:00 - 09:00 201 MW

30-03-2023 09:00 - 10:00 194 MW

30-03-2023 10:00 - 11:00 194 MW

30-03-2023 11:00 - 12:00 194 MW

30-03-2023 12:00 - 13:00 200 MW

30-03-2023 13:00 - 14:00 200 MW

30-03-2023 14:00 - 15:00 200 MW

30-03-2023 15:00 - 16:00 199 MW

30-03-2023 16:00 - 17:00 199 MW

30-03-2023 17:00 - 18:00 199 MW

30-03-2023 18:00 - 19:00 177 MW

30-03-2023 19:00 - 20:00 177 MW

30-03-2023 20:00 - 21:00 177 MW

30-03-2023 21:00 - 22:00 199 MW

30-03-2023 22:00 - 23:00 235 MW

30-03-2023 23:00 - 24:00 199 MW

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

Expected overloading on the following elements: Bulciago - Soazza; Pradella-Robbia + Filisur-Robbia; Soverzene-Lienz; PST La Praz.

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:

29-03-2023 00:00 - 01:00 235 MW

29-03-2023 01:00 - 02:00 235 MW

29-03-2023 02:00 - 03:00 235 MW

29-03-2023 03:00 - 04:00 235 MW

29-03-2023 04:00 - 05:00 235 MW

29-03-2023 05:00 - 06:00 235 MW

29-03-2023 06:00 - 07:00 235 MW

29-03-2023 07:00 - 08:00 235 MW

29-03-2023 08:00 - 09:00 235 MW

29-03-2023 09:00 - 10:00 235 MW

29-03-2023 10:00 - 11:00 235 MW

29-03-2023 11:00 - 12:00 235 MW

29-03-2023 12:00 - 13:00 235 MW

29-03-2023 13:00 - 14:00 235 MW

29-03-2023 14:00 - 15:00 235 MW

29-03-2023 15:00 - 16:00 235 MW

29-03-2023 16:00 - 17:00 235 MW

29-03-2023 17:00 - 18:00 235 MW

29-03-2023 18:00 - 19:00 235 MW

29-03-2023 19:00 - 20:00 235 MW

29-03-2023 20:00 - 21:00 235 MW

29-03-2023 21:00 - 22:00 235 MW

29-03-2023 22:00 - 23:00 235 MW

29-03-2023 23:00 - 24:00 235 MW

5. Amount of LTTR remaining after curtailment:

29-03-2023 00:00 - 01:00 179 MW

29-03-2023 01:00 - 02:00 179 MW

29-03-2023 02:00 - 03:00 179 MW

29-03-2023 03:00 - 04:00 179 MW

29-03-2023 04:00 - 05:00 179 MW

29-03-2023 05:00 - 06:00 179 MW

29-03-2023 06:00 - 07:00 179 MW

29-03-2023 07:00 - 08:00 189 MW

29-03-2023 08:00 - 09:00 194 MW

29-03-2023 09:00 - 10:00 194 MW

29-03-2023 10:00 - 11:00 194 MW

29-03-2023 11:00 - 12:00 194 MW

29-03-2023 12:00 - 13:00 194 MW

29-03-2023 13:00 - 14:00 194 MW

29-03-2023 14:00 - 15:00 194 MW

29-03-2023 15:00 - 16:00 194 MW

29-03-2023 16:00 - 17:00 194 MW

29-03-2023 17:00 - 18:00 194 MW

29-03-2023 18:00 - 19:00 199 MW

29-03-2023 19:00 - 20:00 199 MW

29-03-2023 20:00 - 21:00 199 MW

29-03-2023 21:00 - 22:00 180 MW

29-03-2023 22:00 - 23:00 180 MW

29-03-2023 23:00 - 24:00 165 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

Resource Center

This section contains key information for market participants such as user guides, forms, auction rules, nomination deadlines and other documents.

Go to resources

About us

We started as a shared auction platform for transmission capacity across Central Western Europe in 2008. Over time, we became the operator of the Single Allocation Platform and therefore the leading trading platform for European Transmission System Operators.

Get to know us

Register your company

We created a user guide to support the onboarding of market participants. Learn more about the steps to register, the required documents and our service desk platform.

Go to registration