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118672CONSTRAINTS08/10/2024 01:13:36 PM
Managing outages that create a credible risk of SA islanding
AEMO ELECTRICITY MARKET NOTICE
From 9th Oct 2024 AEMO will change constraints used during outages that create a credible risk of SA islanding.
From this date AEMO will:
1) Increase the maximum allowable flow on the V-SA interconnector from 50 MW to 250 MW in the VIC to SA direction, where the transmission outages is a planned outage.
2) Operate the SA region to the default 49-51 Hz target frequency containment band following a contingency event resulting in actual SA islanding. In order to meet this requirement, AEMO may now procure Contingency Raise FCAS locally from the SA region during these outages.
These changes reflect updated advice received by AEMO from the SA Jurisdictional System Security Coordinator.
The first network outage affected by this change is planned for 14th October 2024.
Andrew Groom
AEMO Operations
From 9th Oct 2024 AEMO will change constraints used during outages that create a credible risk of SA islanding.
From this date AEMO will:
1) Increase the maximum allowable flow on the V-SA interconnector from 50 MW to 250 MW in the VIC to SA direction, where the transmission outages is a planned outage.
2) Operate the SA region to the default 49-51 Hz target frequency containment band following a contingency event resulting in actual SA islanding. In order to meet this requirement, AEMO may now procure Contingency Raise FCAS locally from the SA region during these outages.
These changes reflect updated advice received by AEMO from the SA Jurisdictional System Security Coordinator.
The first network outage affected by this change is planned for 14th October 2024.
Andrew Groom
AEMO Operations
118650MARKET INTERVENTION07/10/2024 03:54:45 PM
Update Direction - AGL SA Generation Pty Limited - TORRB4 TORRENS ISLAN
AEMO ELECTRICITY MARKET NOTICE.
Update Direction - AGL SA Generation Pty Limited - TORRB4 TORRENS ISLAN
Refer AEMO Electricity Market Notice 118633
The TORRB4 TORRENS ISLAN direction is now expected to stay in place until 0400 hrs 09/10/2024.
The direction update is issued at 1600 hrs 7/10/2024.
Manager NEM Real Time Operations6
Update Direction - AGL SA Generation Pty Limited - TORRB4 TORRENS ISLAN
Refer AEMO Electricity Market Notice 118633
The TORRB4 TORRENS ISLAN direction is now expected to stay in place until 0400 hrs 09/10/2024.
The direction update is issued at 1600 hrs 7/10/2024.
Manager NEM Real Time Operations6
118649MARKET INTERVENTION07/10/2024 03:53:39 PM
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
AEMO ELECTRICITY MARKET NOTICE.
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer AEMO Electricity Market Notice 118632
The TORRB2 TORRENS ISLAN direction is now expected to stay in place until 1400 hrs 08/10/2024.
The direction update is issued at 1600 hrs 07/10/2024.
Manager NEM Real Time Operations
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer AEMO Electricity Market Notice 118632
The TORRB2 TORRENS ISLAN direction is now expected to stay in place until 1400 hrs 08/10/2024.
The direction update is issued at 1600 hrs 07/10/2024.
Manager NEM Real Time Operations
118633MARKET INTERVENTION06/10/2024 02:29:16 PM
Update Direction - AGL SA Generation Pty Limited - TORRB4 TORRENS ISLAN
AEMO ELECTRICITY MARKET NOTICE.
Update Direction - AGL SA Generation Pty Limited - TORRB4 TORRENS ISLAN
Refer AEMO Electricity Market Notice 118611
The TORRB4 TORRENS ISLAN direction is now expected to stay in place until 0400 hrs 08/10/2024.
The direction update is issued at 1430 hrs 06/10/2024.
Manager NEM Real Time Operations
Update Direction - AGL SA Generation Pty Limited - TORRB4 TORRENS ISLAN
Refer AEMO Electricity Market Notice 118611
The TORRB4 TORRENS ISLAN direction is now expected to stay in place until 0400 hrs 08/10/2024.
The direction update is issued at 1430 hrs 06/10/2024.
Manager NEM Real Time Operations
118632MARKET INTERVENTION06/10/2024 02:28:09 PM
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
AEMO ELECTRICITY MARKET NOTICE.
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer AEMO Electricity Market Notice 118610
The TORRB2 TORRENS ISLAN direction is now expected to stay in place until 0400 hrs 08/10/2024.
The direction update is issued at 1430 hrs 06/10/2024.
Manager NEM Real Time Operations
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer AEMO Electricity Market Notice 118610
The TORRB2 TORRENS ISLAN direction is now expected to stay in place until 0400 hrs 08/10/2024.
The direction update is issued at 1430 hrs 06/10/2024.
Manager NEM Real Time Operations
118611MARKET INTERVENTION05/10/2024 03:01:42 PM
Update Direction - AGL SA Generation Pty Limited - TORRB4 TORRENS ISLAN
AEMO ELECTRICITY MARKET NOTICE.
Update Direction - AGL SA Generation Pty Limited - TORRB4 TORRENS ISLAN
Refer AEMO Electricity Market Notice 118595
The TORRB4 TORRENS ISLAN direction is now expected to stay in place until 0400 hrs 07/10/2024.
The direction update is issued at 1500 hrs 05/10/2024.
Manager NEM Real Time Operations
Update Direction - AGL SA Generation Pty Limited - TORRB4 TORRENS ISLAN
Refer AEMO Electricity Market Notice 118595
The TORRB4 TORRENS ISLAN direction is now expected to stay in place until 0400 hrs 07/10/2024.
The direction update is issued at 1500 hrs 05/10/2024.
Manager NEM Real Time Operations
118610MARKET INTERVENTION05/10/2024 03:00:31 PM
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
AEMO ELECTRICITY MARKET NOTICE.
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer AEMO Electricity Market Notice 118594
The TORRB2 TORRENS ISLAN direction is now expected to stay in place until 0400 hrs 07/10/2024.
The direction update is issued at 1500 hrs 05/10/2024.
Manager NEM Real Time Operations
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer AEMO Electricity Market Notice 118594
The TORRB2 TORRENS ISLAN direction is now expected to stay in place until 0400 hrs 07/10/2024.
The direction update is issued at 1500 hrs 05/10/2024.
Manager NEM Real Time Operations
118609RECLASSIFY CONTINGENCY05/10/2024 11:40:36 AM
Cancellation: Reclassification of non-credible contingency event due to existence of widespread abnormal condition - NEM region.
AEMO ELECTRICITY MARKET NOTICE.
AEMO considers the occurrence of a non-credible contingency event due to the widespread abnormal conditions advised in AEMO Electricity Market Notice 118600 is no longer reasonably possible and accordingly its classification has reverted to non-credible.
Cancellation time: 1130 hrs 05/10/2024.
No constraints were invoked during this event
Manager NEM Real Time Operations
AEMO considers the occurrence of a non-credible contingency event due to the widespread abnormal conditions advised in AEMO Electricity Market Notice 118600 is no longer reasonably possible and accordingly its classification has reverted to non-credible.
Cancellation time: 1130 hrs 05/10/2024.
No constraints were invoked during this event
Manager NEM Real Time Operations
118607RECLASSIFY CONTINGENCY05/10/2024 10:09:21 AM
Cancellation of a Non-Credible Contingency Event: Armidale - Dumaresq 8C 330kV line and Armidale - Sapphire WF 8E 330kV line in NSW1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Cancellation time: 05/10/2024 10:09
Constraint set(s) revoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Refer AEMO Electricity Market Notice 118606
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Cancellation time: 05/10/2024 10:09
Constraint set(s) revoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Refer AEMO Electricity Market Notice 118606
Auto-generated on behalf of Manager NEM Real Time Operations