Start Date of the Core Advanced Hybrid Coupling External Parallel Run

The Core project parties are pleased to confirm that on the 16th of April 2026, the External Parallel Run for Core Advanced Hybrid Coupling implementation will start.

The external parallel run plays a key role in ensuring a smooth and reliable transition to Advanced Hybrid Coupling and Go-Live readiness. The results from the latest AHC SPAICC like run (#5) can be found on the JAO website: https://www.jao.eu/Core-DA-SPAICC-reports. 

JAO will be involved in the testing in the following manner:

• JAO will publish on its Publication Tool:  https://parallelrun-publicationtool.jao.eu/Core/ (please note that the first data will be published on 16/04)

Communication channels
Market participants who would like to follow the Core project developments are invited to join the Core Consultative Group (CCG) by signing up to the Core CG distribution list [link]. The participants of the Core Consultative Group will receive regular information, and invitations to teleconferences and meetings.
Next to the Core CG, a Question & Answer Forum for the Core FB capacity calculation project is currently in use. The Forum can be accessed via https://coreforum.my-ems.net/.
The Core TSOs invite all market participants to use this Forum for their queries.

Market integration - Core to energy transition
The energy transition towards a carbon free electricity supply is a European challenge that requires the use of the European electricity system to the full extent. Weather-dependent supply and increasing demand response will lead to a different and more intense use of the grid. The Core market integration project is aiming to create operational preconditions to optimise the use of the system from a regional perspective and make the single European market a reality.