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Reclassification of a Non-Credible Contingency Event: Eildon PS - Mt Beauty No.1 220 kV line and Eildon PS - Mt Beauty No.2 220 kV line in VIC1 due to Lightning.
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Duration: 27/11/2024 01:20 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of a Non-Credible Contingency Event: Eildon PS - Mt Beauty No.1 220 kV line and Eildon PS - Mt Beauty No.2 220 kV line in VIC1 due to Lightning.
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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Cancellation time: 26/11/2024 21:29
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 120983
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of Actual (LOR1) condition in the NSW region - 26/11/2024
Cancellation of Actual (LOR1) condition in the NSW region - 26/11/2024
The Actual LOR1 Condition in the NSW Region advised in AEMO Electricity Market Notice No.121009 is cancelled at 2015 hrs 26/11/2024.
Manager NEM Real Time Operations
Update - Non-credible contingency event - NSW region - 26/11/2024
Update - Non-credible contingency event - NSW region - 26/11/2024
Refer AEMO Electricity Market Notice 121008
The cause of this non credible contingency event is not known at this stage.
AEMO is not satisfied that this non credible event is unlikely to re-occur.
AEMO has therefore reclassified this event as a credible contingency event until further notice.
Region: NSW
Elements: Uranquinty Units 11,12 and 13.
Duration: 1900 hrs 26/11/2024 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 26/11/2024
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 26/11/2024
An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the NSW region from 1630 hrs.
The Actual LOR1 condition is forecast to exist until 1930 hrs
The capacity reserve requirement is 1450 MW
The minimum capacity reserve available is 886 MW
Manager NEM Real Time Operations
Non-credible contingency event - NSW region - 26/11/2024
Non-credible contingency event - NSW region - 26/11/2024
At 1637 hrs Uranquinty Unit 12 tripped and at 1639 hrs Uranquinty Units 11 and 13 tripped.
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
Reclassification of a Non-Credible Contingency Event: Eildon PS - Mt Beauty No.1 220 kV line and Eildon PS - Mt Beauty No.2 220 kV line in VIC1 due to Lightning.
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Duration: 26/11/2024 14:27 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
STPASA - Cancellation of the Forecast Lack Of Reserve Level 3 (LOR3) in the NSW Region on 28/11/2024
The Forecast LOR3 condition in the NSW region advised in AEMO Electricity Market Notice No. 120965 is cancelled at 1200 hrs on 26/11/2024.
No LOR3 condition is currently forecast in the STPASA period.
AEMO Operations
STPASA - Forecast Lack Of Reserve Level 3 (LOR3) in the NSW Region on 28/11/2024
AEMO declares a Forecast LOR3 condition under clause 4.8.4(b) of the National Electricity Rules for the NSW region for the following period:
From 1430 hrs to 1500 hrs 28/11/2024.
The maximum load (other than interruptible loads) forecast to be interrupted is 118 MW at 1430 hrs.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.
AEMO Operations