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127500POWER SYSTEM EVENTS11/06/2025 06:05:55 PM
Update - Non-credible contingency event - QLD region - 11/06/2025
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - QLD region - 11/06/2025
Refer AEMO Electricity Market Notice 127499
At 1713 hrs the Belmont (H3) No.1 275 kV bus and Loganlea - Belmont (829) 275 kV line tripped.
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
Update - Non-credible contingency event - QLD region - 11/06/2025
Refer AEMO Electricity Market Notice 127499
At 1713 hrs the Belmont (H3) No.1 275 kV bus and Loganlea - Belmont (829) 275 kV line tripped.
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
127499POWER SYSTEM EVENTS11/06/2025 05:24:51 PM
Non-credible contingency event - QLD region - 11/06/2025
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - QLD region - 11/06/2025
At 1713 hrs the Belmont (H3) No.1 275 kV bus tripped.
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
Non-credible contingency event - QLD region - 11/06/2025
At 1713 hrs the Belmont (H3) No.1 275 kV bus tripped.
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
127474GENERAL NOTICE08/06/2025 12:12:12 AM
Network Augmentation Commissioned - NSW Region - 07/06/2025
AEMO ELECTRICITY MARKET NOTICE
A network augmentation has been commissioned in the NSW region at 2350 hrs 07/06/2025 as follows:
Culcairn Solar Farm substation has been cut into the existing Walla Walla - Wagga 6Y 330 kV Transmission Line to form the following circuits:
Culcairn - Walla Walla 6Y 330 kV Transmission Line
Walla Walla - Wagga 3G 330 kV Transmission Line
Manager NEM Real Time Operations
A network augmentation has been commissioned in the NSW region at 2350 hrs 07/06/2025 as follows:
Culcairn Solar Farm substation has been cut into the existing Walla Walla - Wagga 6Y 330 kV Transmission Line to form the following circuits:
Culcairn - Walla Walla 6Y 330 kV Transmission Line
Walla Walla - Wagga 3G 330 kV Transmission Line
Manager NEM Real Time Operations
127459SETTLEMENTS RESIDUE07/06/2025 04:00:33 PM
[EventId:202506071600_NRM_SA1_VIC1_stopped] NEGRES CONSTRAINT NRM_SA1_VIC1 ceased operating from 07 June 2025 16:00
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1600 hrs on 7 June 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - SA to VIC - 7 June 2025.
Refer to market notice: 127457
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the SA to VIC directional interconnector.
The negative residue constraint NRM_SA1_VIC1 ceased operating at 1600 hrs on 7 June 2025.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1600 hrs on 7 June 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - SA to VIC - 7 June 2025.
Refer to market notice: 127457
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the SA to VIC directional interconnector.
The negative residue constraint NRM_SA1_VIC1 ceased operating at 1600 hrs on 7 June 2025.
This is an AEMO autogenerated Market Notice.
127457SETTLEMENTS RESIDUE07/06/2025 03:05:29 PM
[EventId:202506071505_NRM_SA1_VIC1_started] NEGRES CONSTRAINT NRM_SA1_VIC1 started operating from 07 June 2025 15:05
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1505 hrs on 7 June 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - SA to VIC - 7 June 2025.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the SA to VIC directional interconnector.
The negative residue constraint set NRM_SA1_VIC1 commenced operating from 1505 hrs on 7 June 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.
Issued by Australian Energy Market Operator Ltd at 1505 hrs on 7 June 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - SA to VIC - 7 June 2025.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the SA to VIC directional interconnector.
The negative residue constraint set NRM_SA1_VIC1 commenced operating from 1505 hrs on 7 June 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.
127446SETTLEMENTS RESIDUE07/06/2025 11:30:32 AM
[EventId:202506071130_NRM_SA1_VIC1_stopped] NEGRES CONSTRAINT NRM_SA1_VIC1 ceased operating from 07 June 2025 11:30
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1130 hrs on 7 June 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - SA to VIC - 7 June 2025.
Refer to market notice: 127445
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the SA to VIC directional interconnector.
The negative residue constraint NRM_SA1_VIC1 ceased operating at 1130 hrs on 7 June 2025.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1130 hrs on 7 June 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - SA to VIC - 7 June 2025.
Refer to market notice: 127445
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the SA to VIC directional interconnector.
The negative residue constraint NRM_SA1_VIC1 ceased operating at 1130 hrs on 7 June 2025.
This is an AEMO autogenerated Market Notice.
127445SETTLEMENTS RESIDUE07/06/2025 10:35:26 AM
[EventId:202506071035_NRM_SA1_VIC1_started] NEGRES CONSTRAINT NRM_SA1_VIC1 started operating from 07 June 2025 10:35
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1035 hrs on 7 June 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - SA to VIC - 7 June 2025.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the SA to VIC directional interconnector.
The negative residue constraint set NRM_SA1_VIC1 commenced operating from 1035 hrs on 7 June 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.
Issued by Australian Energy Market Operator Ltd at 1035 hrs on 7 June 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - SA to VIC - 7 June 2025.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the SA to VIC directional interconnector.
The negative residue constraint set NRM_SA1_VIC1 commenced operating from 1035 hrs on 7 June 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.
127406POWER SYSTEM EVENTS06/06/2025 08:43:55 AM
Non-credible contingency event - VIC region - 06/06/2025
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - VIC region - 06/06/2025
At 0830 hrs the Wodonga No 2 330kV bus tripped.
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 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 - VIC region - 06/06/2025
At 0830 hrs the Wodonga No 2 330kV bus tripped.
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 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
127334SETTLEMENTS RESIDUE29/05/2025 05:35:27 PM
[EventId:202505291735_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 29 May 2025 17:35
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1735 hrs on 29 May 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 29 May 2025.
Refer to market notice: 127331
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 1735 hrs on 29 May 2025.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1735 hrs on 29 May 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 29 May 2025.
Refer to market notice: 127331
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 1735 hrs on 29 May 2025.
This is an AEMO autogenerated Market Notice.