Release O/P - Updated ITS and DPUG

Affected Period

Status
Closed

Category
IT

Run Type

Created
23/04/2026 14:24

Last Updated
23/04/2026 14:29

Dear Market Participant, 

The updated I-SEM Technical Specification (ITS) v16.2 and SEMO Data Publication Guide (DPUG) Issue 3.5, reflecting the changes to be deployed to the Central Market Systems by Release O/P, have now been published. 

Release O/P covers changes to the Central Market Systems in relation to:

• Scheduling and Dispatch Programme Initiatives
• Celtic Interconnector Registration and Configuration
• Adoption of Multi-NEMO Arrangements

Please see updated ITS documents and support files here.

Please see updated DPUG documents here.

Please contact info@sem-o.com should you require any further information. 

Kind regards, 

SEMO Team