Single Day Ahead Coupling (SDAC)
The European regulatory context has established a Target Model (CACM Regulation 2015/1222) for the European integrated electricity market in the day-ahead time horizon, providing that the European Single Day Ahead Coupling (SDAC) is based on energy trading according to an implicit auction mechanism active on the borders between Italy and Slovenia, Italy and France, Italy and Austria, pursuant to ARERA resolution no. 45/2015/R/EEL, and on the border between Italy and Greece pursuant to ARERA resolution no. 514/2020/R/EEL This mechanism simultaneously carries out the implicit allocation of the daily physical transmission rights and the clearing of the energy purchase and sale offers. SDAC adopts a decentralized approach in which each NEMO (including GME) manages its own trading system and has the option to carry out its own market operations with a common matching algorithm (Euphemia) which takes into account the global network model defined by the European TSOs for their respective markets.
More information here: https://www.nemo-committee.eu/sdac