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The Core Flow-Based Market Coupling project update


The Core Flow-Based Market Coupling project parties provide an update on the project planning and inform about communication channels towards market participants

The project parties involved in the day-ahead Core Flow-Based Market Coupling project (Core FB MC) hereby announce the successful launch of the internal testing phase, the so-called Internal Parallel Run, organised by Core TSOs. The Internal Parallel Run will be followed by an External Parallel Run in Q4 2020. These parallel runs are preceding the go-live window of Core FB MC which is currently foreseen from Q2 to Q3 2021.

The upcoming milestones in the Core FB MC project

Pursuant to Article 20 (8) of the CACM Regulation, during the period of at least six months the concerned TSOs shall test the flow-based methodology alongside the existing capacity calculation and allocation regimes currently applied in the Core CCR and enable market participants to adapt to any change in the capacity calculation. This testing phase, the so-called External Parallel Run, is planned to last from November 2020 to May 2021.

Market participants who would like to follow closer the project development are invited to join the Core Consultative Group (CCG) by sending an email to The participants of the Core Consultative Group will receive regular information, and invitation to teleconferences and meetings.

The next physical meetings of the CCG are planned to be organised on April 07, 2020 in Brussels and on October 07, 2020 in Vienna. Next to a general status of the project, the first meeting will be an opportunity to discuss transparency developments in the Core Capacity Calculation Region (Core CCR) together with some updates about the methodologies to be developed by the TSOs in the Core CCR. The second meeting will be devoted to the organisation of the External Parallel Run.

Further project parties expect to launch the joint SDAC procedures testing in October 2020 and involvement of market participants during SDAC member tests is envisaged from March to April 2021. Separate information on this involvement will follow duly in time.

Communication channel

Next to CCG a Question & Answer Forum for the Core FB MC project is currently being implemented. The Forum will be available under the Core FB MC section on the JAO website, ie. Project parties will inform about the launch of operation of the Q&A Forum and invite all market participants to use this Forum for their queries.

About the Day-Ahead Flow-Based Market Coupling project in the Core CCR

The Core Flow-Based Market Coupling (Core FB MC) project promotes the development and implementation of a flow-based day-ahead market coupling across the whole Core capacity calculation region (Core CCR) in the framework of the Single Day-Ahead Coupling (SDAC). The Core CCR consists of the bidding zone borders between the following EU Member States’ bidding zones: Austria, Belgium, Croatia, the Czech Republic, France, Germany, Hungary, Luxemburg, the Netherlands, Poland, Romania, Slovakia and Slovenia.


03 March 2020

Amsterdam, Berlin, Bucharest, Budapest, Bratislava, Brussel, Ljubljana, Luxemburg, Paris, Prague, Vienna, Warsaw, Zagreb