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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

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

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Capacity Curtailment on the DK<>NL border for delivery 09/12/2022

Published: 07/12/2022 | 14:20by JAO
Capacity Curtailment on the IF1-FR-GB and IF1-GB-FR border for delivery 08-12-2022

Published: 07/12/2022 | 07:32by JAO
Capacity Curtailment on the DK<>NL border for delivery 08/12/2022

Published: 06/12/2022 | 16:28by JAO
Start of the public consultation of the 3rd ID CCM amendment

Published: 05/12/2022 | 16:40by JAO
Capacity Curtailment on the DK<>NL border for delivery 07/12/2022

Published: 05/12/2022 | 13:56by JAO
2023 Auction Calendar update

Published: 05/12/2022 | 13:52by JAO
Capacity Curtailment on the DK<>NL border for delivery 06/12/2022

Published: 04/12/2022 | 13:54by JAO

Go to Message board

1. TSO(s): TenneT TSO B.V.

2.Identification of affected Long Term Transmission Rights

Denmark Netherlands

3.Triggering event :

☐Curtailment to ensure operation remains within Operational Security Limits

☒Curtailment due to Force Majeure

☐Curtailment due to emergency situation

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

09/12/2022:

Denmark Netherlands:
• 00:00 - 23:59: 0 MW

5.Amount of LTTR remaining after curtailment :

09/12/2022:

Netherlands Denmark:
• 00:00 - 23:59: 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).

FR>GB

TSO(s) *:

National Grid Interconnectors Limited (NGIC) and RTE EDF Transport S.A. (RTE)

Identification of affected Long Term Transmission Rights

IFA FR>GB

Triggering event :

☒Curtailment to ensure operation remains within Operational Security Limits

☐Curtailment due to Force Majeure

☐Curtailment due to emergency situation

Affected volume in MW / hour for each concerned period :

08/12/2022

00:00 - 01:00 950

01:00 - 02:00 950

02:00 - 03:00 950

03:00 - 04:00 950

04:00 - 05:00 950

05:00 - 06:00 950

06:00 - 07:00 950

07:00 - 08:00 950

08:00 - 09:00 950

09:00 - 10:00 950

10:00 - 11:00 950

11:00 - 12:00 950

12:00 - 13:00 950

13:00 - 14:00 950

14:00 - 15:00 950

15:00 - 16:00 950

16:00 - 17:00 950

17:00 - 18:00 950

18:00 - 19:00 950

19:00 - 20:00 950

20:00 - 21:00 950

21:00 - 22:00 950

22:00 - 23:00 950

23:00 - 00:00 950

Amount of LTTR remaining after curtailment :

08/12/2022

00:00 - 01:00 500

01:00 - 02:00 500

02:00 - 03:00 500

03:00 - 04:00 500

04:00 - 05:00 500

05:00 - 06:00 500

06:00 - 07:00 500

07:00 - 08:00 500

08:00 - 09:00 500

09:00 - 10:00 500

10:00 - 11:00 500

11:00 - 12:00 500

12:00 - 13:00 500

13:00 - 14:00 500

14:00 - 15:00 0

15:00 - 16:00 0

16:00 - 17:00 950

17:00 - 18:00 950

18:00 - 19:00 950

19:00 - 20:00 950

20:00 - 21:00 950

21:00 - 22:00 950

22:00 - 23:00 950

23:00 - 00:00 950

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

Thermal Limits

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

Capacity limitation due to unplanned maintenance

GB > FR

TSO(s) *:

National Grid Interconnectors Limited (NGIC) and RTE EDF Transport S.A. (RTE)

Identification of affected Long Term Transmission Rights

IFA GB>FR

Triggering event :

☒Curtailment to ensure operation remains within Operational Security Limits

☐Curtailment due to Force Majeure

☐Curtailment due to emergency situation

Affected volume in MW / hour for each concerned period:

08/12/2022

00:00 - 01:00 950

01:00 - 02:00 950

02:00 - 03:00 950

03:00 - 04:00 950

04:00 - 05:00 950

05:00 - 06:00 950

06:00 - 07:00 950

07:00 - 08:00 950

08:00 - 09:00 950

09:00 - 10:00 950

10:00 - 11:00 950

11:00 - 12:00 950

12:00 - 13:00 950

13:00 - 14:00 950

14:00 - 15:00 950

15:00 - 16:00 950

16:00 - 17:00 950

17:00 - 18:00 950

18:00 - 19:00 950

19:00 - 20:00 950

20:00 - 21:00 950

21:00 - 22:00 950

22:00 - 23:00 950

23:00 - 00:00 950

Amount of LTTR remaining after curtailment:

08/12/2022

00:00 - 01:00 500

01:00 - 02:00 500

02:00 - 03:00 500

03:00 - 04:00 500

04:00 - 05:00 500

05:00 - 06:00 500

06:00 - 07:00 500

07:00 - 08:00 500

08:00 - 09:00 500

09:00 - 10:00 500

10:00 - 11:00 500

11:00 - 12:00 500

12:00 - 13:00 500

13:00 - 14:00 500

14:00 - 15:00 0

15:00 - 16:00 0

16:00 - 17:00 950

17:00 - 18:00 950

18:00 - 19:00 950

19:00 - 20:00 950

20:00 - 21:00 950

21:00 - 22:00 950

22:00 - 23:00 950

23:00 - 00:00 950

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

Thermal Limits

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): TenneT TSO B.V.

2.Identification of affected Long Term Transmission Rights

Denmark Netherlands

3.Triggering event :

☐Curtailment to ensure operation remains within Operational Security Limits

☒Curtailment due to Force Majeure

☐Curtailment due to emergency situation

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

08/12/2022:

Denmark Netherlands:
• 00:00 - 23:59: 180 MW

5.Amount of LTTR remaining after curtailment :

08/12/2022:

Netherlands Denmark:
• 00:00 - 23:59: 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).

Dear Market Participants,

Core TSOs have published a proposal for a third amendment of the Intraday Core Capacity Calculation Methodology to accommodate ATC validation.

Given the tight timings of the Intraday process for providing capacity before 21:45 day-ahead based on the DACF available after 20:30, TSOs do not have currently sufficient time to always assess efficiently the IVA validation for grid security.

For this reason, they require to add the possibility for an ATC validation process which acts on the final ATC computed to increase grid security when necessary.

The relevant documents and the information to provide input can be found on the ENTSO-E website [LINK]. Input can be submitted until 30 December 2022

Best regards,

JAO Operations

1. TSO(s): TenneT TSO B.V.

2.Identification of affected Long Term Transmission Rights

Denmark Netherlands

3.Triggering event :

☐Curtailment to ensure operation remains within Operational Security Limits

☒Curtailment due to Force Majeure

☐Curtailment due to emergency situation

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

07/12/2022:

Denmark Netherlands:
• 00:00 - 23:59: 0 MW

5.Amount of LTTR remaining after curtailment :

07/12/2022:

Netherlands Denmark:
• 00:00 - 23:59: 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).

Dear Market Participants,

We would like to inform you that as per TSOs request, the 2023 Auction Calendar has been updated on the corridors FR-IT and SI-IT.

Please be aware of the following changes on Yearly auctions opening today:

FR-IT-Y-BASE-------230101-02 has been added and will open today at 14:40

SI-IT-Y-BASE-------230101-01 has been cancelled

SI-IT-Y-BASE-------230101-02 will open today at 15:00

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

Best regards,

JAO Operations Team

1.TSO(s): TenneT TSO B.V.

2.Identification of affected Long Term Transmission Rights

Denmark Netherlands

3.Triggering event :

☐Curtailment to ensure operation remains within Operational Security Limits

☒Curtailment due to Force Majeure

☐Curtailment due to emergency situation

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

06/12/2022:

Denmark Netherlands:
• 00:00 - 23:59: 180 MW

5.Amount of LTTR remaining after curtailment :

06/12/2022:

Netherlands Denmark:
• 00:00 - 23:59: 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).

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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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.

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