On Saturday, 6 September 2025, following planned maintenance, the Single Intraday Coupling (SIDC) electricity market experienced a complete outage of the XBID system, which facilitates cross-zonal trading. The disruption occurred between 09:30 and 17:50.

The market operator ensured that trading on the local intraday electricity market in the Czech Republic remained operational throughout the outage.

An in-depth investigation is currently underway, on the XBID service provider's side, to identify the root cause of the unscheduled downtime. Nominated Electricity Market Operators and Transmission System Operators participating in SIDC remain committed to maintaining the highest standards of operational resilience and transparency with the market and sincerely apologise for this unintended disruption to the normal trading schedule.

The official statement from the SIDC project parties is available at the following link (in English only).