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Reclassification of a Non-Credible Contingency Event: Farrell-John Butters line and Farrell-Rosebery-Newton-Queenstown line in TAS1 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: TAS1
Lines: Farrell-John Butters and Farrell-Rosebery-Newton-Queenstown
Duration: 28/11/2024 01:24 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: 27/11/2024 23:34
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 121082
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of a Non-Credible Contingency Event: Yallourn - Rowville 7 220 kV line and Yallourn - Rowville 8 220 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: Yallourn - Rowville 7 220 kV and Yallourn - Rowville 8 220 kV
Cancellation time: 27/11/2024 21:14
Constraint set(s) revoked:
V-ROYP78_R_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Refer AEMO Electricity Market Notice 121073
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of Actual (LOR1) condition in the NSW region - 27/11/2024
Cancellation of Actual (LOR1) condition in the NSW region - 27/11/2024
The Actual LOR1 Condition in the NSW Region advised in AEMO Electricity Market Notice No.121106 is cancelled at 2000 hrs 27/11/2024.
Manager NEM Real Time Operations
[EventId:202411271745_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 27 November 2024 17:45
Issued by Australian Energy Market Operator Ltd at 1745 hrs on 27 November 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 27 November 2024.
Refer to market notice: 121112
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the NSW to VIC directional interconnector.
The negative residue constraint NRM_NSW1_VIC1 ceased operating at 1745 hrs on 27 November 2024.
This is an AEMO autogenerated Market Notice.
[EventId:202411271730_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 27 November 2024 17:30
Issued by Australian Energy Market Operator Ltd at 1730 hrs on 27 November 2024
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 27 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 1730 hrs on 27 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.
[EventId:202411271700_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 27 November 2024 17:00
Issued by Australian Energy Market Operator Ltd at 1700 hrs on 27 November 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 27 November 2024.
Refer to market notice: 121093
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the NSW to VIC directional interconnector.
The negative residue constraint NRM_NSW1_VIC1 ceased operating at 1700 hrs on 27 November 2024.
This is an AEMO autogenerated Market Notice.
Update - Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 27/11/2024
Update - Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 27/11/2024
The Actual LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 121089 has been updated at 1645 hrs to the following:
The Actual LOR1 condition is forecast to exist until 1900 hrs.
The forecast capacity reserve requirement is 1370 MW.
The minimum capacity reserve available is 859 MW.
Manager NEM Real Time Operations
Cancellation of Actual (LOR2) condition in the NSW region - 27/11/2024
Cancellation of Actual (LOR2) condition in the NSW region - 27/11/2024
The Actual LOR2 Condition in the NSW Region advised in AEMO Electricity Market Notice No.121101 is cancelled at 1645 hrs 27/11/2024.
Manager NEM Real Time Operations