Energy Business Motion

DE-AT-PL-4M MC (Interim Coupling) Project GO-LIVE: a new era begins


We are pleased to inform all stakeholders that the DE-AT-PL-4M MC, also referred to as Interim Coupling Project parties successfully executed the go-live of coupling the 4M MC (Czech Republic, Slovakia, Hungary and Romania) and Multi Regional Coupling (MRC) on 17 June 2021.

Interim Coupling connected the borders of 4M MC with the Multi-Regional Coupling by introducing Net Transmission Capacity based implicit capacity allocation on six borders (PL-DE, PL-CZ, PL-SK, CZ-DE, CZ-AT, HU-AT), resulting in even more favourable conditions for day-ahead power market participants.


The DE-AT-PL-4M MC (Interim Coupling) is the most significant step towards creating the single European day-ahead market and the biggest market coupling project of the EU, enabling the merger of Western and Eastern European day-ahead power markets.


HUPX would like to express its gratefulness to all stakeholders, who took an active part in enabling this historical event to come to its end: 16 parties TSOs and NEMOS of 7 countries, with the involvement of the NRAs of respective countries: Austria, Czech Republic, Hungary, Germany, Poland, Romania and Slovakia.


The project supports HUPX in fulfilling its mission: to provide increasing liquidity and a more efficient and flexible trading environment.


For more information, please refer to HUPX’s press release:


You may also wish to consult SDAC’s official press release here: