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.

 

Go down

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

3rd round of Auctions for SK-UA for Market Period 06/01/2026

by JAO

Please note that the following auction have been created for market period 06/01/2026

SK-UA-D-DAILYPRODU-260106-03 – Opening 10:40 / Closing 11:00

Please make sure to use the new auction ID in your bid files.

Cancellation of 2nd round of Auction for SK-UA for Market Period 06/01/2026 - 3rd round will follow

by JAO

As per TSO request, the following auctions have been cancelled for market period 06/01/2026


SK-UA-D-DAILYPRODU-260106-02

Cancellation of Auctions for SK-UA for Market Period 06/01/2026 AND second round at 10:20

by JAO

As per TSO request, the following auctions have been cancelled for market period 06/01/2026

SK-UA-D-DAILYPRODU-260106-01

And the following auctions have been created for market period 06/01/2026

SK-UA-D-DAILYPRODU-260106-02 – Opening 10:20 / Closing 10:40

Please make sure to use the new auction ID in your bid files.

Cancellation of Auctions for HU-UA for Market Period 06/01/2026 AND second round at 10:10 .

by JAO

As per TSO request, the following auctions have been cancelled for market period 06/01/2026

HU-UA-D-DAILYPRODU-260106-01

And the following auctions have been created for market period 06/01/2026

HU-UA-D-DAILYPRODU-260106-02 – Opening 10:10 / Closing 10:30

Please make sure to use the new auction ID in your bid files.

Capacity Curtailment on the SI-AT border for delivery period 06-01-2026

by JAO

1. TSO(s)*:

APG

2. Identification of affected Long Term Transmission Rights:

SI-AT

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

06-01-2026 02:00 - 03:00 430 MW

06-01-2026 03:00 - 04:00 430 MW

06-01-2026 04:00 - 05:00 430 MW

06-01-2026 05:00 - 06:00 430 MW

5. Amount of LTTR remaining after curtailment:

06-01-2026 02:00 - 03:00 163 MW

06-01-2026 03:00 - 04:00 221 MW

06-01-2026 04:00 - 05:00 211 MW

06-01-2026 05:00 - 06:00 223 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

Capacity Curtailment on the HU-AT border for delivery period 06-01-2026

by JAO

1. TSO(s)*:

APG

2. Identification of affected Long Term Transmission Rights:

HU-AT

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

06-01-2026 02:00 - 03:00 340 MW

06-01-2026 03:00 - 04:00 340 MW

06-01-2026 04:00 - 05:00 340 MW

06-01-2026 05:00 - 06:00 340 MW

5. Amount of LTTR remaining after curtailment:

06-01-2026 02:00 - 03:00 232 MW

06-01-2026 03:00 - 04:00 291 MW

06-01-2026 04:00 - 05:00 284 MW

06-01-2026 05:00 - 06:00 296 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

Capacity Curtailment on the AT-CZ border for delivery period 06-01-2026

by JAO

1. TSO(s)*:

APG

2. Identification of affected Long Term Transmission Rights:

AT-CZ

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

06-01-2026 02:00 - 03:00 350 MW

06-01-2026 03:00 - 04:00 350 MW

06-01-2026 04:00 - 05:00 350 MW

06-01-2026 05:00 - 06:00 350 MW

5. Amount of LTTR remaining after curtailment:

06-01-2026 02:00 - 03:00 134 MW

06-01-2026 03:00 - 04:00 143 MW

06-01-2026 04:00 - 05:00 156 MW

06-01-2026 05:00 - 06:00 156 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

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.

Get to know us
Image
JAO workers

Frequently asked questions

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

Do you need support?

If you can't find an answer to your question, our team is here to help!