Revised Weekly Constraints Update

Affected Period

Status
Closed

Category
Balancing

Run Type

Created
27/05/2025 16:05

Last Updated
27/05/2025 16:06

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