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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

2026 Auction Calendar update

by JAO

We would like to inform you that as per TSOs request, the 2026 Auction Calendar has been updated on the corridor IFA2.

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

Capacity Curtailment on the EE-LV border for delivery period 15-04-2026

by JAO

1. TSO(s)*:

AST

2. Identification of affected Long Term Transmission Rights:

EE-LV

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

15-04-2026 00:00 - 01:00 450 MW

15-04-2026 01:00 - 02:00 450 MW

15-04-2026 02:00 - 03:00 450 MW

15-04-2026 03:00 - 04:00 450 MW

15-04-2026 04:00 - 05:00 450 MW

15-04-2026 05:00 - 06:00 450 MW

15-04-2026 06:00 - 07:00 450 MW

15-04-2026 07:00 - 08:00 450 MW

15-04-2026 08:00 - 09:00 450 MW

15-04-2026 09:00 - 10:00 450 MW

15-04-2026 10:00 - 11:00 450 MW

15-04-2026 11:00 - 12:00 450 MW

5. Amount of LTTR remaining after curtailment:

15-04-2026 00:00 - 01:00 412 MW

15-04-2026 01:00 - 02:00 412 MW

15-04-2026 02:00 - 03:00 412 MW

15-04-2026 03:00 - 04:00 412 MW

15-04-2026 04:00 - 05:00 412 MW

15-04-2026 05:00 - 06:00 412 MW

15-04-2026 06:00 - 07:00 412 MW

15-04-2026 07:00 - 08:00 387 MW

15-04-2026 08:00 - 09:00 387 MW

15-04-2026 09:00 - 10:00 387 MW

15-04-2026 10:00 - 11:00 387 MW

15-04-2026 11:00 - 12:00 394 MW

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

Nord Pool - UMM Platform, as well as the capacity already allocated on the Baltic Balancing Market for balancing capacity sharing athttps://baltic.transparency-dashboard.eu/node/108

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

There is no alternative to the curtailment of the affected LTTRs.

Urgent Market Update: Cancellation & 2nd round created for CH-DE-D-DAILYPRODU-260415-02 & DE-CH-D-DAILYPRODU-260415-02 for Market Period 15/04/2026opening at 09:35

by JAO

As per TSO request, the DE-CH & CH-DE Daily Auction for market period 15/04/2026 with the auction ID CH-DE-D-DAILYPRODU-260415-01 & DE-CH-D-DAILYPRODU-260415-01 has been cancelled.

Please note that the 2nd round of the daily auction for the corridor DE-CH & CH-DE with auction ID CH-DE-D-DAILYPRODU-260415-02 & DE-CH-D-DAILYPRODU-260415-02 is opening today at 09:35 and will close at 10:00.

Please ensure your bid files have the correct auction ID.

Please note that the Default Bids will not be taken into consideration, thank your understanding.

Capacity Curtailment on the GR-IT border for delivery period 15-04-2026

by JAO

1. TSO(s)*:

TERNA

2. Identification of affected Long Term Transmission Rights:

GR-IT

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

15-04-2026 00:00 - 01:00 500 MW

15-04-2026 01:00 - 02:00 500 MW

15-04-2026 02:00 - 03:00 500 MW

15-04-2026 03:00 - 04:00 500 MW

15-04-2026 04:00 - 05:00 500 MW

15-04-2026 05:00 - 06:00 500 MW

15-04-2026 06:00 - 07:00 500 MW

15-04-2026 07:00 - 08:00 500 MW

15-04-2026 08:00 - 09:00 500 MW

15-04-2026 09:00 - 10:00 500 MW

15-04-2026 10:00 - 11:00 500 MW

15-04-2026 11:00 - 12:00 500 MW

15-04-2026 12:00 - 13:00 500 MW

15-04-2026 13:00 - 14:00 500 MW

15-04-2026 14:00 - 15:00 500 MW

15-04-2026 15:00 - 16:00 500 MW

15-04-2026 16:00 - 17:00 500 MW

15-04-2026 17:00 - 18:00 500 MW

15-04-2026 18:00 - 19:00 500 MW

15-04-2026 19:00 - 20:00 500 MW

15-04-2026 20:00 - 21:00 500 MW

15-04-2026 21:00 - 22:00 500 MW

15-04-2026 22:00 - 23:00 500 MW

15-04-2026 23:00 - 24:00 500 MW

5. Amount of LTTR remaining after curtailment:

15-04-2026 00:00 - 01:00 241 MW

15-04-2026 01:00 - 02:00 241 MW

15-04-2026 02:00 - 03:00 241 MW

15-04-2026 03:00 - 04:00 241 MW

15-04-2026 04:00 - 05:00 241 MW

15-04-2026 05:00 - 06:00 241 MW

15-04-2026 06:00 - 07:00 241 MW

15-04-2026 07:00 - 08:00 241 MW

15-04-2026 08:00 - 09:00 241 MW

15-04-2026 09:00 - 10:00 241 MW

15-04-2026 10:00 - 11:00 241 MW

15-04-2026 11:00 - 12:00 241 MW

15-04-2026 12:00 - 13:00 241 MW

15-04-2026 13:00 - 14:00 241 MW

15-04-2026 14:00 - 15:00 241 MW

15-04-2026 15:00 - 16:00 241 MW

15-04-2026 16:00 - 17:00 241 MW

15-04-2026 17:00 - 18:00 241 MW

15-04-2026 18:00 - 19:00 241 MW

15-04-2026 19:00 - 20:00 241 MW

15-04-2026 20:00 - 21:00 241 MW

15-04-2026 21:00 - 22:00 241 MW

15-04-2026 22:00 - 23:00 241 MW

15-04-2026 23:00 - 24:00 241 MW

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

HVDC cable ARACTHOS – GALATINA

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

Not Applicable

Capacity Curtailment on the IT-GR border for delivery period 15-04-2026

by JAO

1. TSO(s)*:

TERNA

2. Identification of affected Long Term Transmission Rights:

IT-GR

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

15-04-2026 00:00 - 01:00 500 MW

15-04-2026 01:00 - 02:00 500 MW

15-04-2026 02:00 - 03:00 500 MW

15-04-2026 03:00 - 04:00 500 MW

15-04-2026 04:00 - 05:00 500 MW

15-04-2026 05:00 - 06:00 500 MW

15-04-2026 06:00 - 07:00 500 MW

15-04-2026 07:00 - 08:00 500 MW

15-04-2026 08:00 - 09:00 500 MW

15-04-2026 09:00 - 10:00 500 MW

15-04-2026 10:00 - 11:00 500 MW

15-04-2026 11:00 - 12:00 500 MW

15-04-2026 12:00 - 13:00 500 MW

15-04-2026 13:00 - 14:00 500 MW

15-04-2026 14:00 - 15:00 500 MW

15-04-2026 15:00 - 16:00 500 MW

15-04-2026 16:00 - 17:00 500 MW

15-04-2026 17:00 - 18:00 500 MW

15-04-2026 18:00 - 19:00 500 MW

15-04-2026 19:00 - 20:00 500 MW

15-04-2026 20:00 - 21:00 500 MW

15-04-2026 21:00 - 22:00 500 MW

15-04-2026 22:00 - 23:00 500 MW

15-04-2026 23:00 - 24:00 500 MW

5. Amount of LTTR remaining after curtailment:

15-04-2026 00:00 - 01:00 243 MW

15-04-2026 01:00 - 02:00 243 MW

15-04-2026 02:00 - 03:00 243 MW

15-04-2026 03:00 - 04:00 243 MW

15-04-2026 04:00 - 05:00 243 MW

15-04-2026 05:00 - 06:00 243 MW

15-04-2026 06:00 - 07:00 243 MW

15-04-2026 07:00 - 08:00 243 MW

15-04-2026 08:00 - 09:00 243 MW

15-04-2026 09:00 - 10:00 243 MW

15-04-2026 10:00 - 11:00 243 MW

15-04-2026 11:00 - 12:00 243 MW

15-04-2026 12:00 - 13:00 243 MW

15-04-2026 13:00 - 14:00 243 MW

15-04-2026 14:00 - 15:00 243 MW

15-04-2026 15:00 - 16:00 243 MW

15-04-2026 16:00 - 17:00 243 MW

15-04-2026 17:00 - 18:00 243 MW

15-04-2026 18:00 - 19:00 243 MW

15-04-2026 19:00 - 20:00 243 MW

15-04-2026 20:00 - 21:00 243 MW

15-04-2026 21:00 - 22:00 243 MW

15-04-2026 22:00 - 23:00 243 MW

15-04-2026 23:00 - 24:00 243 MW

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

HVDC cable ARACTHOS – GALATINA

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

Not Applicable

Auction Data Delay on Website

by JAO

Please note that, due to a technical issue, auction data for this mornings auctions are delayed on our website.

We kindly ask you to consult the auction tool directly for information on auctions that are currently running.

Thank you for your understanding.

Capacity Curtailment on the ES-FR border for delivery period 15-04-2026

by JAO

1. TSO(s)*:

   RTE, REE

2. Identification of affected Long Term Transmission Rights:

ES-FR

3. Triggering event:

Curtailment to ensure operation remains within Operational Security Limits

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

15-04-2026 08:00 - 09:00 1680 MW

15-04-2026 09:00 - 10:00 1680 MW

15-04-2026 10:00 - 11:00 1680 MW

15-04-2026 11:00 - 12:00 1680 MW

15-04-2026 12:00 - 13:00 1680 MW

15-04-2026 13:00 - 14:00 1680 MW

15-04-2026 14:00 - 15:00 1680 MW

15-04-2026 15:00 - 16:00 1680 MW

15-04-2026 16:00 - 17:00 1680 MW

15-04-2026 17:00 - 18:00 1680 MW

5. Amount of LTTR remaining after curtailment:

15-04-2026 08:00 - 09:00 1261 MW

15-04-2026 09:00 - 10:00 1261 MW

15-04-2026 10:00 - 11:00 1261 MW

15-04-2026 11:00 - 12:00 1261 MW

15-04-2026 12:00 - 13:00 1261 MW

15-04-2026 13:00 - 14:00 1261 MW

15-04-2026 14:00 - 15:00 1261 MW

15-04-2026 15:00 - 16:00 1261 MW

15-04-2026 16:00 - 17:00 1261 MW

15-04-2026 17:00 - 18:00 1261 MW

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

      08:00-09:00 Transit en N sur Montahut - St Vincent 225 kV

      09:00-10:00 Transit en N sur Montahut - St Vincent 225 kV

      10:00-11:00 Transit en N sur Montahut - St Vincent 225 kV

      11:00-12:00 Transit en N sur Montahut - St Vincent 225 kV

      12:00-13:00 Transit en N sur Montahut - St Vincent 225 kV

      13:00-14:00 Transit en N sur Montahut - St Vincent 225 kV

      14:00-15:00 Transit en N sur Montahut - St Vincent 225 kV

      15:00-16:00 Transit en N sur Montahut - St Vincent 225 kV

      16:00-17:00 Transit en N sur Montahut - St Vincent 225 kV

      17:00-18:00 Transit en N sur Montahut - St Vincent 225 kV

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

   The available remedial actions were assessed as insufficient or ineffective to avoid the violation of operational security limits

*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. 

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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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