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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
OPS
  • 470+
    Registered Market Participants
  • 20k+
    Auctions per year
  • 100 %
    Auction Tool Availability
  • 95
    Employees
  • 50
    TSOs serviced

Latest market messages

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Capacity Curtailment on the CH-IT border for delivery period 11-04-2025

by JAO

1. TSO(s)*:

SWISSGRID

 

2. Identification of affected Long Term Transmission Rights:

CH-IT

 

3. Triggering event:

Curtailment due to Curtailment to ensure operation remains within Operational Security Limits

 

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

11-04-2025 11:00 - 12:00 2560 MW 

11-04-2025 12:00 - 13:00 2560 MW 

11-04-2025 13:00 - 14:00 2560 MW 

11-04-2025 14:00 - 15:00 2560 MW 

11-04-2025 15:00 - 16:00 2560 MW

 

5. Amount of LTTR remaining after curtailment:

11-04-2025 11:00 - 12:00 2274 MW 

11-04-2025 12:00 - 13:00 2030 MW 

11-04-2025 13:00 - 14:00 2030 MW 

11-04-2025 14:00 - 15:00 2030 MW 

11-04-2025 15:00 - 16:00 1863 MW

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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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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Register your company

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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JAO workers

Frequently asked questions

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

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Do you need support?

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

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