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TradingDesk explanationMarket · Market data2026-09-28Updated 2026-09-28

JAO

Joint Allocation Office. The European office that auctions cross-border transmission rights for operators working under EU rules. It is the EU counterpart of the regional role SEE CAO plays for South East Europe.

Official source
Joint Allocation Office (JAO)
Source language
English
TradingDesk explanation
English

Why it matters

JAO stands for Joint Allocation Office. It is the single European office that auctions the right to use power lines between countries whose transmission operators work under EU rules.

SEE CAO does that job for South East Europe, including Albania's regional borders. JAO does it for the European Union's internal borders. The desk keeps both, because an Albanian hour and a European hour meet at a border.

How it works

JAO is based in Luxembourg. On 1 October 2018 it became the Single Allocation Platform for those EU transmission operators. It auctions long-term and short-term transmission rights, and it settles those auctions.

It also runs shadow auctions. Those are the backup if the coupled day-ahead market cannot run.

The public auction site is e-CAT, on jao.eu. Albania's regional capacity auctions stay with SEE CAO. This page does not move them to JAO.

Key rules / parameters

ItemDetail
Full nameJoint Allocation Office
Short nameJAO
RoleSingle Allocation Platform for EU cross-border transmission rights
Since1 October 2018 in that single-platform role
What it sellsLong-term and short-term transmission rights, plus shadow auctions as a day-ahead backup
Websitehttps://www.jao.eu/

TradingDesk context

JAO sits next to SEE CAO under Transmission data. It is ready to connect. SEE CAO remains the office for Albania's regional borders.

Source authority
Source: JAO
Publication date
2018-10-01
Official title
Joint Allocation Office, Single Allocation Platform
Source language
English
Last updated
2026-09-28
Official source
https://www.jao.eu/

JAO · capacity · cross-border · EU

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