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Actual Lack Of Reserve Level 1 (LOR1) in the QLD region - 04/11/2024
Actual Lack Of Reserve Level 1 (LOR1) in the QLD region - 04/11/2024
An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the QLD region from 1800 hrs.
The Actual LOR1 condition is forecast to exist until 1930 hrs
The capacity reserve requirement is 1135 MW
The minimum capacity reserve available is 875 MW
Manager NEM Real Time Operations
Cancellation of Actual (LOR1) condition in the QLD region - 31/10/2024
Cancellation of Actual (LOR1) condition in the QLD region - 31/10/2024
The Actual LOR1 Condition in the QLD Region advised in AEMO Electricity Market Notice No.119713 is cancelled at 1839 hrs 31/10/2024.
Manager NEM Real Time Operations
Actual Lack Of Reserve Level 1 (LOR1) in the QLD region - 31/10/2024
Actual Lack Of Reserve Level 1 (LOR1) in the QLD region - 31/10/2024
An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the QLD region from 1800 hrs.
The Actual LOR1 condition is forecast to exist until 1900 hrs
The forecast capacity reserve requirement is 1298 MW.
The minimum capacity reserve available is 1178 MW.
Manager NEM Real Time Operations
Update - Non-credible contingency event - NSW region - 31/10/2024
Update - Non-credible contingency event - NSW region - 31/10/2024
Refer AEMO Electricity Market Notice 119689
At 0345 hrs the Wagga B 330 kV bus was returned to service.
The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
Non-credible contingency event - NSW region - 31/10/2024
Non-credible contingency event - NSW region - 31/10/2024
At 0028 hrs the Wagga B 330 kV bus tripped which offloaded the Wagga - Walla Walla SF 6Y 330 kV line and Wagga No.3 transformer.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Non-credible contingency event - VIC region - 18/10/2024
Non-credible contingency event - VIC region - 18/10/2024
At 1525 hrs the Rowville - Yallourn No. 7 220 kV Line and the Rowville - Yallourn No. 8 220 kV Line tripped and auto-reclosed.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Cancellation of Actual (LOR1) condition in the QLD region - 17/10/2024
Cancellation of Actual (LOR1) condition in the QLD region - 17/10/2024
The Actual LOR1 Condition in the QLD Region advised in AEMO Electricity Market Notice No.118993 is cancelled at 1839 hrs 17/10/2024.
Manager NEM Real Time Operations
Actual Lack Of Reserve Level 1 (LOR1) in the QLD region - 17/10/2024
Actual Lack Of Reserve Level 1 (LOR1) in the QLD region - 17/10/2024
An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the QLD region from 1800 hrs.
The Actual LOR1 condition is forecast to exist until 1900 hrs
The capacity reserve requirement is 1136 MW
The minimum capacity reserve available is 1076 MW
Manager NEM Real Time Operations
Managing outages that create a credible risk of SA islanding
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