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Reclassification of a Non-Credible Contingency Event: Bayswater - Mt Piper No.5A3 500kV line and Wollar - Mt Piper No.5A5 500kV line in NSW1 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: NSW1
Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV
Duration: 17/11/2024 16:52 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
[EventId:202411171605_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 17 November 2024 16:05
Issued by Australian Energy Market Operator Ltd at 1605 hrs on 17 November 2024
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 17 November 2024.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the NSW to VIC directional interconnector.
The negative residue constraint set NRM_NSW1_VIC1 commenced operating from 1605 hrs on 17 November 2024.
This constraint set contains an equation with the following interconnectors on the LHS:
VIC1-NSW1
The RHS of the constraint equation may be adjusted to manage residues.
This is an AEMO autogenerated Market Notice.
Reclassification of a Non-Credible Contingency Event: Bannaby - Mt Piper 5A6 500kV line and Bannaby - Mt Piper 5A7 500kV line in NSW1 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: NSW1
Lines: Bannaby - Mt Piper 5A6 500kV and Bannaby - Mt Piper 5A7 500kV
Duration: 17/11/2024 14:52 until further notice
Constraint set(s) invoked:
N-5A6+5A7_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
VIC1-NSW1
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of the reclassification of a Non-Credible contingency event: Rowville - Yallourn No. 7 220 kV Line and the Rowville - Yallourn No. 8 220 kV Line in VIC due to Lightning.
Cancellation of the 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: VIC
Lines: Rowville - Yallourn No. 7 220 kV Line and the Rowville - Yallourn No. 8 220 kV Line
Cancellation time: 13:30 hrs 17/11/2024
Constraint set(s) revoked:
V-ROYP78_R_N-2
Refer AEMO Electricity Market Notice 120539
Manager NEM Real Time Operations
PDPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the NSW Region on 17/11/2024
The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 120544 is cancelled at 1345 hrs 17/11/2024.
Manager NEM Real Time Operations
PDPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the QLD Region on 18/11/2024
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the QLD region for the following periods:
[1.] From 1730 hrs 18/11/2024 to 1800 hrs 18/11/2024.
The forecast capacity reserve requirement is 968 MW.
The minimum capacity reserve available is 847 MW.
[2.] From 1900 hrs 18/11/2024 to 2000 hrs 18/11/2024.
The forecast capacity reserve requirement is 969 MW.
The minimum capacity reserve available is 657 MW.
Manager NEM Real Time Operations
PDPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the NSW Region on 18/11/2024
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the NSW region for the following periods:
[1.] From 1930 hrs 18/11/2024 to 2030 hrs 18/11/2024.
The forecast capacity reserve requirement is 1430 MW.
The minimum capacity reserve available is 897 MW.
Manager NEM Real Time Operations
Cancellation of a Non-Credible Contingency Event: Norwood - Scottsdale 1 110kV line and Norwood-Derby-Scottsdale 110kV line in TAS1 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: TAS1
Lines: Norwood - Scottsdale 1 110kV and Norwood-Derby-Scottsdale 110kV
Cancellation time: 17/11/2024 12:48
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 120542
Auto-generated on behalf of Manager NEM Real Time Operations
PDPASA - Update of the Forecast Lack Of Reserve Level 1 (LOR1) in the NSW Region on 17/11/2024
The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 120541 has been updated at 1220 hrs to the following:
[1.] From 1600 hrs 17/11/2024 to 1700 hrs 17/11/2024.
The forecast capacity reserve requirement is 1430 MW.
The minimum capacity reserve available is 1089 MW.
Manager NEM Real Time Operations