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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.

 

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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
OPS
  • 500+
    Registered market participants
  • 26k+
    Auctions held annually
  • 100%
    Auction tool availability
  • 80+
    Employees
  • 50
    TSOs serviced

Latest market messages

RESOLVED: Auction Details Currently Unavailable on Website

by JAO

Please note that the technical issue affecting the availability of auction details on our website has now been resolved.

All auction information is accessible again as usual. Thank you for your patience and understanding.

Please do not hesitate to contact us if you have any questions.

Capacity Curtailment on the CH-IT border for delivery period 29-01-2026

by JAO

1. TSO(s)*:

SWISSGRID

2. Identification of affected Long Term Transmission Rights:

CH-IT

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

29-01-2026 09:00 - 10:00 2786 MW

29-01-2026 10:00 - 11:00 2786 MW

29-01-2026 11:00 - 12:00 2786 MW

29-01-2026 12:00 - 13:00 2786 MW

29-01-2026 13:00 - 14:00 2786 MW

29-01-2026 14:00 - 15:00 2786 MW

5. Amount of LTTR remaining after curtailment:

29-01-2026 09:00 - 10:00 2588 MW

29-01-2026 10:00 - 11:00 2588MW

29-01-2026 11:00 - 12:00 2588 MW

29-01-2026 12:00 - 13:00 2504 MW

29-01-2026 13:00 - 14:00 2504 MW

29-01-2026 14:00 - 15:00 2504 MW

Auction Details Currently Unavailable on Website

by JAO

Please note that due to a technical issue, all auction details are currently unavailable on our website.

We kindly ask you to check the information related to the auctions you wish to participate in via the Trader UI while we work to resolve this issue.

Thank you for your understanding.

Capacity Curtailment on the SI-IT border for delivery period 29-01-2026

by JAO

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:

29-01-2026 15:00 - 16:00 310 MW

29-01-2026 16:00 - 17:00 310 MW

5. Amount of LTTR remaining after curtailment:

29-01-2026 15:00 - 16:00 240 MW

29-01-2026 16:00 - 17:00 284 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

*According to section 57.3 of the EU HAR, this field can be filled in within 24 hours after the initial publication

Capacity Curtailment on the FR-IT border for delivery period 29-01-2026

by JAO

1. TSO(s)*:

TERNA

2. Identification of affected Long Term Transmission Rights:

FR-IT

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

29-01-2026 09:00 - 10:00 2600 MW

29-01-2026 10:00 - 11:00 2600 MW

29-01-2026 11:00 - 12:00 2600 MW

29-01-2026 12:00 - 13:00 2600 MW

29-01-2026 13:00 - 14:00 2600 MW

29-01-2026 14:00 - 15:00 2600 MW

5. Amount of LTTR remaining after curtailment:

29-01-2026 09:00 - 10:00 2526 MW

29-01-2026 10:00 - 11:00 2526 MW

29-01-2026 11:00 - 12:00 2526 MW

29-01-2026 12:00 - 13:00 2456 MW

29-01-2026 13:00 - 14:00 2456 MW

29-01-2026 14:00 - 15:00 2456 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

*According to section 57.3 of the EU HAR, this field can be filled in within 24 hours after the initial publication

Capacity Curtailment on the AT-IT border for delivery period 29-01-2026

by JAO

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:

29-01-2026 15:00 - 16:00 224 MW

29-01-2026 16:00 - 17:00 224 MW

29-01-2026 17:00 - 18:00 224 MW

5. Amount of LTTR remaining after curtailment:

29-01-2026 15:00 - 16:00 110 MW

29-01-2026 16:00 - 17:00 156 MW

29-01-2026 17:00 - 18:00 172 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

*According to section 57.3 of the EU HAR, this field can be filled in within 24 hours after the initial publication

Capacity Curtailment on the CH-IT border for delivery period 28-01-2026

by JAO

1. TSO(s)*:

SWISSGRID

2. Identification of affected Long Term Transmission Rights:

CH-IT

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

28-01-2026 12:00 - 13:00 2786 MW

28-01-2026 13:00 - 14:00 2786 MW

28-01-2026 14:00 - 15:00 2786 MW

5. Amount of LTTR remaining after curtailment:

28-01-2026 12:00 - 13:00 2588 MW

28-01-2026 13:00 - 14:00 2588 MW

28-01-2026 14:00 - 15:00 2588 MW

Our certifications

JAO has successfully implemented internationally recognized management systems and is now officially certified for ISO/IEC 27001:2022 – the global standard for Information Security Management Systems and for ISO 9001 – the international standard for Quality Management Systems. 

ISO
IT

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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JAO workers

Frequently asked questions

Check out the common questions and our answers on how to use the auction platform.

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