Successful Transition to a 15-minute Market Time Unit for Intraday Trading on the SK-PL Border
As of the trading day of March 19, 2025, the fifth wave of the transition to a 15-minute market time unit (15-MTU) for intraday trading was successfully launched. This wave introduced the transition from 60’ MTU to 15’ MTU for 32 cross-border interconnectors and 6 internal borders. Among these was the interconnector between the Slovak Republic and Poland. With this transition to 15’ MTU on the SK-PL border, the trading granularity for all three bidding zone borders of Slovakia SK-CZ, SK-HU, and SK-PL was unified within the single intraday electricity market (SIDC) at a 15’ MTU.
We anticipate that the introduction of a 15-minute trading interval in continuous intraday trading (XBID) and intraday auctions (IDAs) across nearly all of Europe will significantly enhance the efficiency of the intraday market. Shorter trading intervals enable better alignment of production with consumption, reduce imbalances for settlement entities, and improve network reliability, for instance, by decreasing quasi-deterministic frequency deviations, which typically occur at the transition between trading hours.
For more information, please refer to the official MCSC press release available at this link.