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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

470+

Registered Market Participants
20k+

Auctions per year
100 %

Auction Tool Availability
95

Employees
50

TSOs serviced

Latest market messages

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Capacity Curtailment on the SI-IT border for delivery period 21-02-2025

Published: 20/02/2025 | 07:47by JAO
Meeting Minutes and Supporting Documents – Open Call on 18/02/2025

Published: 19/02/2025 | 16:37by JAO
Upcoming change: Updated Intraday Auction Schedule and Timings for Eleclink Intraday auctions from 19th of March 2025

Published: 19/02/2025 | 08:04by JAO
2025 Auction Calendar update

Published: 18/02/2025 | 13:34by JAO
Capacity Curtailment on the AT-IT border for delivery period 18-02-2025

Published: 17/02/2025 | 07:54by JAO
Capacity Curtailment on the IF1-GB-FR border for delivery period 28-02-2025

Published: 15/02/2025 | 15:36by JAO
Capacity Curtailment on the IF1-FR-GB border for delivery period 28-02-2025

Published: 15/02/2025 | 15:34by JAO

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1. TSO(s)*:

TERNA

2. Identification of affected Long Term Transmission Rights:

SI-IT

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

21-02-2025 18:00 - 19:00 320 MW

21-02-2025 19:00 - 20:00 320 MW

21-02-2025 20:00 - 21:00 320 MW

5. Amount of LTTR remaining after curtailment:

21-02-2025 18:00 - 19:00 286 MW

21-02-2025 19:00 - 20:00 286 MW

21-02-2025 20:00 - 21:00 286 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

Dear Market Participants,

It was a pleasure to welcome you to our Open Call this week.

Please find attached the meeting minutes and the supporting documentation from the Open Call held on 18/02/2025.

Below, you may find attached the survey link related to our JIRA ticketing platform, which we would kindly encourage you to fill in, as your feedback is of great value:

New JIRA Survey

Thank you in advance,

JAO Operations

Dear Market Participant,

We would like to inform you about an upcoming change to the Eleclink Intraday auction schedule, effective March 19, 2025. This change includes the introduction of a new Intraday auction.

The revised auction schedule will be as follows:

In the first Auction the offered products are each MTU from 00:00 till 08:00

In the second Auction the offered products are each MTU from 08:00 till 18:00

In the third Auction the offered products are each MTU from 18:00 till 24:00

The updated schedule will take effect from the first Intraday Auction on March 19, 2025.

Please be aware that available capacity may vary while the go-live process is underway and all existing default bids will be removed.

If you have any questions, please do not hesitate to contact us.

Best regards,

Operations Team

Dear Market Participants,

We would like to inform you that as per TSOs request, the 2025 Auction Calendar has been updated on the corridor NLL.

For more details please refer to the Auction Calendar on our webpage http://www.jao.eu/auctions#/calendar/table to find its latest version.

Best regards,

JAO 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:

18-02-2025 07:00 - 08:00 172 MW

18-02-2025 08:00 - 09:00 172 MW

5. Amount of LTTR remaining after curtailment:

18-02-2025 07:00 - 08:00 106 MW

18-02-2025 08:00 - 09:00 111 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

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:

28-02-2025 08:00 - 09:00 1400 MW

28-02-2025 16:00 - 17:00 1400 MW

5. Amount of LTTR remaining after curtailment:

28-02-2025 08:00 - 09:00 961 MW

28-02-2025 16:00 - 17:00 961 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

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:

28-02-2025 08:00 - 09:00 1399 MW

28-02-2025 16:00 - 17:00 1399 MW

5. Amount of LTTR remaining after curtailment:

28-02-2025 08:00 - 09:00 964 MW

28-02-2025 16:00 - 17:00 964 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

Resource Center

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

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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.

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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