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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
[EventId:202410301600_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 30 October 2024 16:00
Issued by Australian Energy Market Operator Ltd at 1600 hrs on 30 October 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 30 October 2024.
Refer to market notice: 119683
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 1600 hrs on 30 October 2024.
This is an AEMO autogenerated Market Notice.
[EventId:202410301505_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 30 October 2024 15:05
Issued by Australian Energy Market Operator Ltd at 1505 hrs on 30 October 2024
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 30 October 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 1505 hrs on 30 October 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.
Forecast Minimum System Load 1 (MSL1) in the VIC Region on 05/11/2024
AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the Victorian region on 05/11/2024.
Minimum regional demand is forecast to be 1238 MW at 1300 hrs, and the advisory threshold is:
MSL1 - 1535 MW
MSL2 - 1035 MW
MSL3 - 535 MW
The regional demand is forecast to be below the MSL1 threshold for the following period:
From 1030 hrs to 1400 hrs 05/11/2024.
AEMO Operations
[EventId:202410291745_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 29 October 2024 17:45
Issued by Australian Energy Market Operator Ltd at 1745 hrs on 29 October 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 29 October 2024.
Refer to market notice: 119664
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 29 October 2024.
This is an AEMO autogenerated Market Notice.
[EventId:202410291710_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 29 October 2024 17:10
Issued by Australian Energy Market Operator Ltd at 1710 hrs on 29 October 2024
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 29 October 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 1710 hrs on 29 October 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:202410291500_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 29 October 2024 15:00
Issued by Australian Energy Market Operator Ltd at 1500 hrs on 29 October 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 29 October 2024.
Refer to market notice: 119642
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 1500 hrs on 29 October 2024.
This is an AEMO autogenerated Market Notice.
Forecast Minimum System Load 1 (MSL1) in the VIC Region on 02/11/2024
Update to Market Notice 119571 - AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the Victorian region on 02/11/2024.
Minimum regional demand is forecast to be 1457 MW at 1230 hrs, and the advisory threshold is:
MSL1 - 1695 MW
MSL2 - 1195 MW
MSL3 - 695 MW
The regional demand is forecast to be below the MSL1 threshold for the following period:
From 1130 hrs to 1400 hrs 02/11/2024.
AEMO Operations