Interim Coupling go-live

Interim Coupling go-live

Since 17 June 2021, the Day-Ahead markets of the Czech Republic, Hungary, Romania and Slovakia are connected with the pan-European Single Day-Ahead Coupling. This allows for efficient use of the power system and cross-border infrastructures. Through stronger coordination between energy market stakeholders, social welfare is maximised to the benefit of all market participants.

The Interim Coupling project was launched on the request of National Regulatory Authorities in 2018 in order to foster regional integration of Day-Ahead markets in Europe. The project aimed to connect the borders of the so-called 4M MC countries Czechia, Hungary, Romania and Slovakia with the Multi-Regional Coupling. This connection happens through the introduction of implicit capacity allocation on the respective borders. Implicit capacity allocation means that available cross-border capacity is auctioned simultaneously with the traded electricity, to optimise flows and increase efficiency at the borders.

Interim Coupling go-live

A result of cooperation

The successful new coupling is the result of the close cooperation among the Power Exchanges and Transmission System Operators involved in the Interim Coupling Project: EPEX SPOT, EXAA, HUPX, NordPool EMCO, OKTE, OPCOM, OTE, TGE and TSOs 50Hertz, APG, CEPS, MAVIR, PSE, SEPS, TenneT, Transelectrica. The partners worked closely with national regulatory authorities ANRE, BNetzA, E-Control, ERU, MEKH, URE and URSO.

The go-live of the Interim Coupling project represents a major step.

One step closer to the target model

The go-live of the Interim Coupling project represents a major step towards the achievement of the European Single Day-Ahead Coupling. The next step consists of the introduction of the flow-based capacity calculation method in the so-called Core region, reaching from France to Romania and from Germany to Croatia. This happens in the framework of the Core Flow-Based Market Coupling project. More information on the Core Flow-Based Market Coupling project is available here.