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[EventId:202501241200_NRM_VIC1_SA1_stopped] NEGRES CONSTRAINT NRM_VIC1_SA1 ceased operating from 24 January 2025 12:00
Issued by Australian Energy Market Operator Ltd at 1200 hrs on 24 January 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 24 January 2025.
Refer to market notice: 123654
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the VIC to SA directional interconnector.
The negative residue constraint NRM_VIC1_SA1 ceased operating at 1200 hrs on 24 January 2025.
This is an AEMO autogenerated Market Notice.
[EventId:202501241135_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 24 January 2025 11:35
Issued by Australian Energy Market Operator Ltd at 1135 hrs on 24 January 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 24 January 2025.
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 1135 hrs on 24 January 2025.
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:202501241105_NRM_VIC1_SA1_started] NEGRES CONSTRAINT NRM_VIC1_SA1 started operating from 24 January 2025 11:05
Issued by Australian Energy Market Operator Ltd at 1105 hrs on 24 January 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 24 January 2025.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the VIC to SA directional interconnector.
The negative residue constraint set NRM_VIC1_SA1 commenced operating from 1105 hrs on 24 January 2025.
This constraint set contains an equation with the following interconnectors on the LHS:
V-S-MNSP1
V-SA
The RHS of the constraint equation may be adjusted to manage residues.
This is an AEMO autogenerated Market Notice.
[EventId:202501241100_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 24 January 2025 11:00
Issued by Australian Energy Market Operator Ltd at 1100 hrs on 24 January 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 24 January 2025.
Refer to market notice: 123647
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 1100 hrs on 24 January 2025.
This is an AEMO autogenerated Market Notice.
Inter-regional transfer limit variation - Bundey to Buronga (6F) 330kV line - NSW region - 24/01/2025
Inter-regional transfer limit variation - Bundey to Buronga (6F) 330kV line - NSW region - 24/01/2025
A planned outage of Bundey to Buronga (6F) 330kV line in the NSW region was scheduled from 1931 hrs 21/01/2025 to 1900 hrs 25/01/2025.
The outage has been completed and Bundey to Buronga (6F) 330kV line returned to service at 0900 hrs 24/01/2025
Constraint set(s) revoked: I-BDBU_ONE
Manager NEM Real Time Operations
[EventId:202501240810_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 24 January 2025 08:10
Issued by Australian Energy Market Operator Ltd at 0810 hrs on 24 January 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 24 January 2025.
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 0810 hrs on 24 January 2025.
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.
Inter-regional transfer limit variation - Lismore No.1 132 kV SVC - NSW region - 23/01/2025
Inter-regional transfer limit variation - Lismore No.1 132 kV SVC - NSW region - 23/01/2025
A planned outage of Lismore No.1 132 kV SVC in the NSW region was scheduled from 2200 hrs 22/01/2025 to 1600 hrs 24/01/2025.
The outage has been completed and Lismore No.1 132 kV SVC returned to service at 1631 hrs 23/01/2025
Constraint set(s) revoked: N-LS_VC1
Manager NEM Real Time Operations
Update - Non-credible contingency event - NSW region - 23/01/2025
Update - Non-credible contingency event - NSW region - 23/01/2025
Refer AEMO Electricity Market Notice 123613
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: Kempsey - Macksville 9W5 and the Kempsey - Raleigh 9W2 132kV Lines
Duration: 0250 hrs 23/01/2025 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations
Non-credible contingency event - NSW region - 23/01/2025
Non-credible contingency event - NSW region - 23/01/2025
At 0240 hrs the Kempsey - Macksville 9W5 and the Kempsey - Raleigh 9W2 132kV Lines 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