The Market Consolidation Steering Committee (MCSC) has initiated an in-depth investigation into the October 28 partial split incident

The Market Consolidation Steering Committee (MCSC) has initiated an in-depth investigation into the October 28 partial split incident, BNEB reports.

During the market coupling session on October 28, a technical problem caused the markets to be partially split.

Country/Market area separated from the Day Ahead Market Association (SDAC) from a market perspective: Greece

Request register excluded from market coupling session: HEnEx (Hellenic Energy Exchange)

Interconnectors separated from SDAC: GR-BG, GR-IT

The cause of the incident was a technical problem in HEnEx's trading system. HEnEx informs that a serious technical problem has occurred in its trading system, hindering the process of validating submitted bids on the Day Ahead market. The issue related to the additional hour when switching to winter time for delivery day 29/10/2023 has not been resolved within the time frame provided for in the SDAC procedures and a partial separation has been announced. The final results of the auction session for the countries remaining in the market unification mode were published at 14:05 CET. The common market connection system performed as expected and ensured the connection of the rest of the SDAC.

The governing committee of the market associations initiated a thorough investigation into the incident. A report on the partial separation summarizing the outcome of the investigation and potential lessons learned is expected to be released within a month, the release said.