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144006RESERVE NOTICE28/04/2026 01:17:56 AM
PDPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region on 28/04/2026
AEMO ELECTRICITY MARKET NOTICE
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following Period:
[1.] From 1800 hrs 28/04/2026 to 2030 hrs 28/04/2026.
The forecast capacity reserve requirement is 647 MW.
The minimum capacity reserve available is 622 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 SA region for the following Period:
[1.] From 1800 hrs 28/04/2026 to 2030 hrs 28/04/2026.
The forecast capacity reserve requirement is 647 MW.
The minimum capacity reserve available is 622 MW.
Manager NEM Real Time Operations
141087POWER SYSTEM EVENTS15/04/2026 03:45:55 PM
Non-credible contingency event - VIC region - 15/04/2026
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - VIC region - 15/04/2026
At 1506 hrs the JLysaght - Tyabb 1 220kV Line and the JLysaght - Tyabb 2 220kV Line tripped.
AEMO did not instruct load shedding.
AEMO has been advised of disconnection of 16 MWs 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 - 15/04/2026
At 1506 hrs the JLysaght - Tyabb 1 220kV Line and the JLysaght - Tyabb 2 220kV Line tripped.
AEMO did not instruct load shedding.
AEMO has been advised of disconnection of 16 MWs 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
141069POWER SYSTEM EVENTS13/04/2026 08:39:49 PM
Update - Non-credible contingency event - TAS region - 11/04/2026
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - TAS region - 11/04/2026
Refer AEMO Electricity Market Notice 141053
At 1357 hrs 11/04/2026 the Farrell -Tribute 220 kV line, Farrell - John Butters 220kV Line and the Farrell - Mackintosh 110kV Line tripped. These lines have been returned to service.
The cause of the trip was identified as due to lightning
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.
AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible.
Region: TAS1
Lines: Farrell -Tribute 220 kV line, Farrell - John Butters 220kV Line and the Farrell - Mackintosh 110kV lines
Cancellation time: 13/04/2026 20:25
Constraint set(s) revoked: T-JB_MC_TI_250, F-T-JB_MC_TI_N-2
The following interconnector(s) are on the left hand side: T-V-MNSP1
Manager NEM Real Time Operations
Update - Non-credible contingency event - TAS region - 11/04/2026
Refer AEMO Electricity Market Notice 141053
At 1357 hrs 11/04/2026 the Farrell -Tribute 220 kV line, Farrell - John Butters 220kV Line and the Farrell - Mackintosh 110kV Line tripped. These lines have been returned to service.
The cause of the trip was identified as due to lightning
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.
AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible.
Region: TAS1
Lines: Farrell -Tribute 220 kV line, Farrell - John Butters 220kV Line and the Farrell - Mackintosh 110kV lines
Cancellation time: 13/04/2026 20:25
Constraint set(s) revoked: T-JB_MC_TI_250, F-T-JB_MC_TI_N-2
The following interconnector(s) are on the left hand side: T-V-MNSP1
Manager NEM Real Time Operations
141049RESERVE NOTICE12/04/2026 01:40:24 PM
PDPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region on 12/04/2026
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 141048 is cancelled at 1340 hrs 12/04/2026.
Manager NEM Real Time Operations
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 141048 is cancelled at 1340 hrs 12/04/2026.
Manager NEM Real Time Operations
141048RESERVE NOTICE12/04/2026 12:53:50 PM
PDPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region on 14/04/2026
AEMO ELECTRICITY MARKET NOTICE
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following Period:
[1.] From 0130 hrs 14/04/2026 to 0200 hrs 14/04/2026.
The forecast capacity reserve requirement is 406 MW.
The minimum capacity reserve available is 258 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 SA region for the following Period:
[1.] From 0130 hrs 14/04/2026 to 0200 hrs 14/04/2026.
The forecast capacity reserve requirement is 406 MW.
The minimum capacity reserve available is 258 MW.
Manager NEM Real Time Operations
141036POWER SYSTEM EVENTS11/04/2026 02:32:09 PM
Non-credible contingency event - TAS region - 11/04/2026
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - TAS region - 11/04/2026
At 1357 hrs the Farrell -Tribute 220 kV line, Farrell - John Butters 220kV Lines and Farrell - Mackintosh 110kV 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
Non-credible contingency event - TAS region - 11/04/2026
At 1357 hrs the Farrell -Tribute 220 kV line, Farrell - John Butters 220kV Lines and Farrell - Mackintosh 110kV 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
141012POWER SYSTEM EVENTS10/04/2026 06:04:13 PM
Non-credible contingency event - TAS region - 10/04/2026
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - TAS region - 10/04/2026
At 1646 hrs the Farrell - Reece No.1 220 kV and Farrell - Reece No.2 220 kV lines tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of the trip was identified as due to lightning.
In accordance with SO_OP_3715, the Farrell - Reece No.1 and No.2 220 kV lines are considered vulnerable with a category of probable due to lightning.
At the time of the trip, Farrell - Reece No.1 220 kV and Farrell - Reece No.2 220 kV lines were not reclassified 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 from 16:50 hrs until further notice.
Refer market notice 141010
Manager NEM Real Time Operations
Non-credible contingency event - TAS region - 10/04/2026
At 1646 hrs the Farrell - Reece No.1 220 kV and Farrell - Reece No.2 220 kV lines tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of the trip was identified as due to lightning.
In accordance with SO_OP_3715, the Farrell - Reece No.1 and No.2 220 kV lines are considered vulnerable with a category of probable due to lightning.
At the time of the trip, Farrell - Reece No.1 220 kV and Farrell - Reece No.2 220 kV lines were not reclassified 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 from 16:50 hrs until further notice.
Refer market notice 141010
Manager NEM Real Time Operations
140942RESERVE NOTICE06/04/2026 01:14:21 PM
PDPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region on 07/04/2026
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 140941 is cancelled at 1315 hrs 06/04/2026.
Manager NEM Real Time Operations
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 140941 is cancelled at 1315 hrs 06/04/2026.
Manager NEM Real Time Operations
140941RESERVE NOTICE06/04/2026 12:50:11 PM
PDPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region on 07/04/2026
AEMO ELECTRICITY MARKET NOTICE
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following Period:
[1.] From 1830 hrs 07/04/2026 to 2300 hrs 07/04/2026.
The forecast capacity reserve requirement is 473 MW.
The minimum capacity reserve available is 360 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 SA region for the following Period:
[1.] From 1830 hrs 07/04/2026 to 2300 hrs 07/04/2026.
The forecast capacity reserve requirement is 473 MW.
The minimum capacity reserve available is 360 MW.
Manager NEM Real Time Operations