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128458POWER SYSTEM EVENTS07/08/2025 05:40:13 AM
Non-credible contingency event - SA region - 07/08/2025
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - SA region - 07/08/2025
At 0507 hrs the Dorrien end of the Templers West to Dorrien 132 kV line and the Templers battery 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 - SA region - 07/08/2025
At 0507 hrs the Dorrien end of the Templers West to Dorrien 132 kV line and the Templers battery 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
128457RESERVE NOTICE06/08/2025 03:16:12 PM
PDPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the VIC Region on 07/08/2025
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR1 condition in the VIC region advised in AEMO Electricity Market Notice No. 128455 is cancelled at 1515 hrs 06/08/2025.
Manager NEM Real Time Operations
The Forecast LOR1 condition in the VIC region advised in AEMO Electricity Market Notice No. 128455 is cancelled at 1515 hrs 06/08/2025.
Manager NEM Real Time Operations
128456RESERVE NOTICE06/08/2025 03:07:57 PM
STPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the TAS Region on 07/08/2025
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR1 condition in the TAS region advised in AEMO Electricity Market Notice No. 128430 is cancelled at 1400 hrs 06/08/2025.
AEMO Operations
The Forecast LOR1 condition in the TAS region advised in AEMO Electricity Market Notice No. 128430 is cancelled at 1400 hrs 06/08/2025.
AEMO Operations
128455RESERVE NOTICE06/08/2025 01:25:22 PM
PDPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the VIC Region on 07/08/2025
AEMO ELECTRICITY MARKET NOTICE
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the VIC region for the following Period:
[1.] From 0730 hrs 07/08/2025 to 0800 hrs 07/08/2025.
The forecast capacity reserve requirement is 1148 MW.
The minimum capacity reserve available is 942 MW.
Manager NEM Real Time Operations
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the VIC region for the following Period:
[1.] From 0730 hrs 07/08/2025 to 0800 hrs 07/08/2025.
The forecast capacity reserve requirement is 1148 MW.
The minimum capacity reserve available is 942 MW.
Manager NEM Real Time Operations
128453INTER-REGIONAL TRANSFER06/08/2025 09:49:32 AM
Inter-regional transfer limit variation - Red Cliffs - Wemen 220kV LINE and Koorangie - Wemen 220kV LINE - VIC region - 06/08/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Red Cliffs - Wemen 220kV LINE and Koorangie - Wemen 220kV LINE - VIC region - 06/08/2025
A planned outage of Red Cliffs - Wemen 220kV LINE and Koorangie - Wemen 220kV LINE in the VIC region was scheduled from 0700 hrs 06/08/2025 to 1800 hrs 06/08/2025.
The outage has been completed and Red Cliffs - Wemen 220kV LINE and Koorangie - Wemen 220kV LINE returned to service at 0945 hrs 06/08/2025
Constraint set(s) revoked: V-KO_WE_RC
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Red Cliffs - Wemen 220kV LINE and Koorangie - Wemen 220kV LINE - VIC region - 06/08/2025
A planned outage of Red Cliffs - Wemen 220kV LINE and Koorangie - Wemen 220kV LINE in the VIC region was scheduled from 0700 hrs 06/08/2025 to 1800 hrs 06/08/2025.
The outage has been completed and Red Cliffs - Wemen 220kV LINE and Koorangie - Wemen 220kV LINE returned to service at 0945 hrs 06/08/2025
Constraint set(s) revoked: V-KO_WE_RC
Manager NEM Real Time Operations
128448INTER-REGIONAL TRANSFER05/08/2025 08:43:31 PM
Inter-regional transfer limit variation - South East 275 kV No. 2 SVC - SA region - 05/08/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - South East 275 kV No. 2 SVC - SA region - 05/08/2025
At 2036 hrs 05/08/2025 there was an unplanned outage of South East 275 kV No. 2 SVC.
The following constraint set(s) invoked at 2045 hrs 05/08/2025
S-SE_VC1
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - South East 275 kV No. 2 SVC - SA region - 05/08/2025
At 2036 hrs 05/08/2025 there was an unplanned outage of South East 275 kV No. 2 SVC.
The following constraint set(s) invoked at 2045 hrs 05/08/2025
S-SE_VC1
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
128430RESERVE NOTICE04/08/2025 02:40:03 PM
STPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the TAS Region on 07/08/2025
AEMO ELECTRICITY MARKET NOTICE
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the TAS region for the following period:
From 0730 hrs to 0830 hrs 07/08/2025.
The forecast capacity reserve requirement is 582 MW.
The minimum capacity reserve available is 549 MW.
AEMO Operations
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the TAS region for the following period:
From 0730 hrs to 0830 hrs 07/08/2025.
The forecast capacity reserve requirement is 582 MW.
The minimum capacity reserve available is 549 MW.
AEMO Operations
128420INTER-REGIONAL TRANSFER02/08/2025 12:56:53 PM
Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 02/08/2025
AEMO ELECTRICITY MARKET NOTICE
In order to maintain the power system in a secure operating state in the NSW region, AEMO has invoked automated constraint set CA_BRIS_57A00625 from 1235 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
N-Q-MNSP1
NSW1-QLD1
Manager NEM Real Time Operations
In order to maintain the power system in a secure operating state in the NSW region, AEMO has invoked automated constraint set CA_BRIS_57A00625 from 1235 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
N-Q-MNSP1
NSW1-QLD1
Manager NEM Real Time Operations
128379INTER-REGIONAL TRANSFER27/07/2025 10:56:17 AM
Inter-regional transfer limit variation - South_East N 275kV BUS- SA region - 27/07/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - South_East N 275kV BUS - SA region - 27/07/2025
A planned outage of South_East N 275kV BUS in the SA region was scheduled from 0730 hrs 23/07/2025 to 1730 hrs 27/07/2025.
The outage has been completed and South_East N 275kV BUSt returned to service at 1100 hrs 27/07/2025
Constraint set(s) revoked: S-SECB6611_10
Manager NEM Real Time Operations
Inter-regional transfer limit variation - South_East N 275kV BUS - SA region - 27/07/2025
A planned outage of South_East N 275kV BUS in the SA region was scheduled from 0730 hrs 23/07/2025 to 1730 hrs 27/07/2025.
The outage has been completed and South_East N 275kV BUSt returned to service at 1100 hrs 27/07/2025
Constraint set(s) revoked: S-SECB6611_10
Manager NEM Real Time Operations