SEMOpx Auction Timings and Market Messages

Affected Period

Status
Closed

Category
Semopx

Run Type

Created
21/05/2026 08:48

Last Updated
21/05/2026 08:50

Dear Member,

SEMOpx would like to inform members of an update to the SDAC Fallback Manual, which is available now on the [NEMO Committee] and [ENTSO-E] websites. 

This comprehensive guide is a collaborative initiative of the NEMOs and TSOs, designed to help companies navigate complex challenges and maintain operational resilience in the event of an SDAC partial or full decoupling. 

Applicable from May 20th 2026, the updated manual reflects enhancements to communication processes, all of which are now incorporated into the SEMOpx Auction Timings and Market Messages document here. To support a smooth transition between versions, the SDAC Fallback Manual includes both the previous and the updated versions within a single document.

Please note all timings in the SDAC Fallback Manual document are in CET/CEST.

Kind regards,

SEMOpx Team