Revised Weekly Constraints Update
Affected Period
Status
Closed
Category
Balancing
Run Type
Created
Last Updated
Dear Market Participant,
EirGrid and SONI have published a revised weekly constraints update for the current Week 20 2025.
The revision note, the following notes have been removed:
HNC is temporarily excluded from the following Transmission Constraint Groups:
• S_NBMIN_ROImin
• S_NBMIN_Dub_NB
• S_NBMIN_DubNB2
• S_NBMIN_DUB_L1
• S_NBMIN_DUB_L2.
HNC is currently only available in Open Cycle Mode.
HN2 is must run for security of supply.
Security of supply
Reason:
HNC has declared fully available. HN2 is no longer required for security of supply.
The weekly constraints update is published every Friday evening on the General Publications page of SEM-O.com.
Kind regards,
SEMO Team