Revised Weekly Constraints Update

Affected Period

Status
Closed

Category
Balancing

Run type
N/A

Created
05/10/2021 17:36

Last Updated
05/10/2021 17:40

EirGrid and SONI have published a revised weekly constraints update for the current Week 40.

The revision notes:

  1. The following units are must run for security of supply, when available: MP1, MP2, MP3, TYC, TB3, AD2, B10, and either K1, and or K2.
  2. (Removal of PBB from Run Hours Preservation (CT_HRS) group): To ensure that the equivalent operating hours on AT2 and AT4 and PBB are effectively managed to minimize risks for margins across winter 2021/22.
  3. NI Run Hour Preservation and Minimum Generation constraints for K1 and K2 have been removed.
  4. (NI System Stability group): There must be at least 3 machines on-load at all times in Northern Ireland. Required for dynamic stability. B10, B31, B32, C30, either K1, or K2.

The weekly constraints update is published every Friday evening on the General Publications page of SEM-O.com.