Markets

XBID 

Intra-day markets are an important tool for market participants who are thus able to balance their positions. The growth of intermittent energy sources has increased the importance of efficient intra-day markets.

The European regulatory context has established a Target Model (CACM Regulation 2015/1222) for the integrated European electricity market in the intra-day time frame, providing for the European Single Intra-Day Coupling (SIDC) to be based on energy trading according to a continuous trading mechanism, in which the interconnection capacity available between the different zones of the SIDC is implicitly allocated concurrently with the combination of purchase and sale offers located in different zones. The European SIDC solution is based on a centralized IT platform called XBID.  

CRIDA 

In addition to the continuous trading method, the European Target Model also provides for intra-day inter-zonal transmission capacity  to be allocated through complementary regional implicit auctions (CRIDA), if requested by the individual national regulatory authorities (NRA). In the regional context of interest for Italy, on the basis of resolution 350/2019/R/EEL of 30 July 2019, ARERA has established that in addition to continuous trading in XBID, in Italy CRIDAs must also take place. The implementation of CRIDAs on the borders between Italy and Slovenia and Italy and Greece takes place, through the Euphemia algorithm, carrying out three implicit auctions replacing the seven auctions of the previous Intra-day Market. 

More information here:  

https://www.nemo-committee.eu/sidc 
3rd wave Launch event 
Cross-Border Intraday: Questions & Answers??