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Leading service provider for Transmission System Operators 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 IF2 GB <>FR border for delivery day 30/07/2021

Published: 28/07/2021 | 14:10by JAO
Capacity Curtailment on the DK<>NL border for delivery day 30/07/2021

Published: 28/07/2021 | 13:25by JAO
Capacity Curtailment on the NL>DE border for delivery day 29/07/2021

Published: 28/07/2021 | 07:25by JAO
Capacity Curtailment on the DK<>NL border for delivery day 29/07/2021

Published: 27/07/2021 | 15:05by JAO
2021 Auction Calendar update

Published: 27/07/2021 | 13:35by JAO
Capacity curtailment GR<>IT for delivery day: 31/07/2021-13/08/2021

Published: 27/07/2021 | 09:05by JAO
Capacity Curtailment on the NL>DE border for delivery day 28/07/2021

Published: 27/07/2021 | 07:00by JAO

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FR>GB

TSO(s) *:

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

Identification of affected Long Term Transmission Rights

IFA2 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 :

30/07/2021 CEST

00:00 - 01:00 400

01:00 - 02:00 400

02:00 - 03:00 400

03:00 - 04:00 400

04:00 - 05:00 400

05:00 - 06:00 400

06:00 - 07:00 400

07:00 - 08:00 400

08:00 - 09:00 400

09:00 - 10:00 400

10:00 - 11:00 400

11:00 - 12:00 400

12:00 - 13:00 400

13:00 - 14:00 400

14:00 - 15:00 400

15:00 - 16:00 400

16:00 - 17:00 400

17:00 - 18:00 400

18:00 - 19:00 400

19:00 - 20:00 400

20:00 - 21:00 400

21:00 - 22:00 400

22:00 - 23:00 400

23:00 - 00:00 400

Amount of LTTR remaining after curtailment :

30/07/2021 CEST

00:00 - 01:00 400

01:00 - 02:00 400

02:00 - 03:00 400

03:00 - 04:00 400

04:00 - 05:00 400

05:00 - 06:00 400

06:00 - 07:00 400

07:00 - 08:00 400

08:00 - 09:00 400

09:00 - 10:00 0

10:00 - 11:00 0

11:00 - 12:00 0

12:00 - 13:00 0

13:00 - 14:00 0

14:00 - 15:00 400

15:00 - 16:00 400

16:00 - 17:00 400

17:00 - 18:00 400

18:00 - 19:00 400

19:00 - 20:00 400

20:00 - 21:00 400

21:00 - 22:00 400

22:00 - 23:00 400

23:00 - 00:00 400

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

IFA2 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:

30/07/2021 CEST

00:00 - 01:00 397

01:00 - 02:00 397

02:00 - 03:00 397

03:00 - 04:00 397

04:00 - 05:00 397

05:00 - 06:00 397

06:00 - 07:00 397

07:00 - 08:00 397

08:00 - 09:00 397

09:00 - 10:00 397

10:00 - 11:00 397

11:00 - 12:00 397

12:00 - 13:00 397

13:00 - 14:00 397

14:00 - 15:00 397

15:00 - 16:00 397

16:00 - 17:00 397

17:00 - 18:00 397

18:00 - 19:00 397

19:00 - 20:00 397

20:00 - 21:00 397

21:00 - 22:00 397

22:00 - 23:00 397

23:00 - 00:00 397

Amount of LTTR remaining after curtailment:

30/07/21 CEST

00:00 - 01:00 397

01:00 - 02:00 397

02:00 - 03:00 397

03:00 - 04:00 397

04:00 - 05:00 397

05:00 - 06:00 397

06:00 - 07:00 397

07:00 - 08:00 397

08:00 - 09:00 397

09:00 - 10:00 0

10:00 - 11:00 0

11:00 - 12:00 0

12:00 - 13:00 0

13:00 - 14:00 0

14:00 - 15:00 397

15:00 - 16:00 397

16:00 - 17:00 397

17:00 - 18:00 397

18:00 - 19:00 397

19:00 - 20:00 397

20:00 - 21:00 397

21:00 - 22:00 397

22:00 - 23:00 397

23:00 - 00:00 397

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 :

30/07/2021:

Netherlands -> Denmark:

• 00:00 - 23:59: 700 MW

30/07/2021:

Denmark -> Netherlands:
• 00:00 - 23:59: 700 MW

5.Amount of LTTR remaining after curtailment :

30/07/2021:

Netherlands -> Denmark:

• 00:00 - 23:59: 0 MW

30/07/2021:

Denmark -> Netherlands:
• 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).

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

2.Identification of affected Long Term Transmission Rights

Netherlands -> Germany

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 :

29/07/2021:

Netherlands -> Germany:
• 00:00 - 01:00: 1081 MW

5.Amount of LTTR remaining after curtailment :

29/07/2021:

Netherlands -> Germany:
• 00:00 - 01:00: 631 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 in the FB DA CC process were assessed as not sufficient or ineffective to avoid the expected violation of operational security limit(s).

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 :

29/07/2021:

Netherlands -> Denmark:

• 00:00 - 23:59: 700 MW

29/07/2021:

Denmark -> Netherlands:
• 00:00 - 23:59: 700 MW

5.Amount of LTTR remaining after curtailment :

29/07/2021:

Netherlands -> Denmark:

• 00:00 - 23:59: 0 MW

29/07/2021:

Denmark -> Netherlands:
• 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 requests 2021 Auction Calendar has been updated on the corridor BDL.

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) *: IPTO (ADMIE) & TERNA

2.Identification of affected Long Term Transmission Rights

Greece Italy

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 :

Greece Italy

31/07/2021 – 12/08/2021

§00:00 - 01:00 500 MW

§01:00 - 02:00 500 MW

§02:00 - 03:00 500 MW

§03:00 - 04:00 500 MW

§04:00 - 05:00 500 MW

§05:00 - 06:00 500 MW

§06:00 - 07:00 500 MW

§07:00 - 08:00 500 MW

§08:00 - 09:00 500 MW

§09:00 - 10:00 500 MW

§10:00 - 11:00 500 MW

§11:00 - 12:00 500 MW

§12:00 - 13:00 500 MW

§13:00 - 14:00 500 MW

§14:00 - 15:00 500 MW

§15:00 - 16:00 500 MW

§16:00 - 17:00 500 MW

§17:00 - 18:00 500 MW

§18:00 - 19:00 500 MW

§19:00 - 20:00 500 MW

§20:00 - 21:00 500 MW

§21:00 - 22:00 500 MW

§22:00 - 23:00 500 MW

§23:00 - 00:00 500 MW

13/08/2021

§00:00 - 01:00 500 MW

§01:00 - 02:00 500 MW

§02:00 - 03:00 500 MW

§03:00 - 04:00 500 MW

§04:00 - 05:00 500 MW

§05:00 - 06:00 500 MW

§06:00 - 07:00 500 MW

§07:00 - 08:00 500 MW

§08:00 - 09:00 500 MW

§09:00 - 10:00 500 MW

§10:00 - 11:00 500 MW

§11:00 - 12:00 500 MW

§12:00 - 13:00 500 MW

§13:00 - 14:00 500 MW

§14:00 - 15:00 500 MW

§15:00 - 16:00 500 MW

5.Amount of LTTR remaining after curtailment :

31/07/2021 – 12/08/2021

§00:00 - 01:00 0 MW

§01:00 - 02:00 0 MW

§02:00 - 03:00 0 MW

§03:00 - 04:00 0 MW

§04:00 - 05:00 0 MW

§05:00 - 06:00 0 MW

§06:00 - 07:00 0 MW

§07:00 - 08:00 0 MW

§08:00 - 09:00 0 MW

§09:00 - 10:00 0 MW

§10:00 - 11:00 0 MW

§11:00 - 12:00 0 MW

§12:00 - 13:00 0 MW

§13:00 - 14:00 0 MW

§14:00 - 15:00 0 MW

§15:00 - 16:00 0 MW

§16:00 - 17:00 0 MW

§17:00 - 18:00 0 MW

§18:00 - 19:00 0 MW

§19:00 - 20:00 0 MW

§20:00 - 21:00 0 MW

§21:00 - 22:00 0 MW

§22:00 - 23:00 0 MW

§23:00 - 00:00 0 MW

13/08/2021

§00:00 - 01:00 0 MW

§01:00 - 02:00 0 MW

§02:00 - 03:00 0 MW

§03:00 - 04:00 0 MW

§04:00 - 05:00 0 MW

§05:00 - 06:00 0 MW

§06:00 - 07:00 0 MW

§07:00 - 08:00 0 MW

§08:00 - 09:00 0 MW

§09:00 - 10:00 0 MW

§10:00 - 11:00 0 MW

§11:00 - 12:00 0 MW

§12:00 - 13:00 0 MW

§13:00 - 14:00 0 MW

§14:00 - 15:00 0 MW

§15:00 - 16:00 0 MW

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

HVDC Aracthos -Galatina

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

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

2.Identification of affected Long Term Transmission Rights

Netherlands -> Germany

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 :

28/07/2021:

Netherlands -> Germany:
• 14:00 - 15:00: 1081 MW
• 15:00 - 16:00: 1081 MW

5.Amount of LTTR remaining after curtailment :

28/07/2021:

Netherlands -> Germany:
• 14:00 - 15:00: 631 MW
• 15:00 - 16:00: 631 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 in the FB DA CC process 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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