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123615POWER SYSTEM EVENTS23/01/2025 03:09:25 AM
Update - Non-credible contingency event - NSW region - 23/01/2025
AEMO ELECTRICITY MARKET NOTICE.
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
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
123613POWER SYSTEM EVENTS23/01/2025 03:02:44 AM
Non-credible contingency event - NSW region - 23/01/2025
AEMO ELECTRICITY MARKET NOTICE.
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
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
123451POWER SYSTEM EVENTS18/01/2025 04:19:58 PM
Update - Non-credible contingency event - NSW region - 15/01/2025
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - NSW region - 15/01/2025
Refer AEMO Electricity Market Notice 123354
At 1458 hrs the Tomago - Taree (963) 132kV line was returned to service. The Tomago - Brandy Hill (9C6) 132kV line was returned to service on 16/01/2025.
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
Update - Non-credible contingency event - NSW region - 15/01/2025
Refer AEMO Electricity Market Notice 123354
At 1458 hrs the Tomago - Taree (963) 132kV line was returned to service. The Tomago - Brandy Hill (9C6) 132kV line was returned to service on 16/01/2025.
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
123445POWER SYSTEM EVENTS18/01/2025 02:06:59 PM
Update - Non-credible contingency event - NSW region - 17/01/2025
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - NSW region - 17/01/2025
Refer AEMO Electricity Market Notice 123406
At 1345 hrs the Buronga 330 kV B 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
Update - Non-credible contingency event - NSW region - 17/01/2025
Refer AEMO Electricity Market Notice 123406
At 1345 hrs the Buronga 330 kV B 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
123406POWER SYSTEM EVENTS17/01/2025 02:46:41 PM
Update Non-credible contingency event - NSW region - 17/01/2025
AEMO ELECTRICITY MARKET NOTICE.
Update Non-credible contingency event - NSW region - 17/01/2025
Refer AEMO Electricity Market Notice 123404
At 0825 hrs the Buronga 330 kV B 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
Update Non-credible contingency event - NSW region - 17/01/2025
Refer AEMO Electricity Market Notice 123404
At 0825 hrs the Buronga 330 kV B 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
123404POWER SYSTEM EVENTS17/01/2025 10:11:09 AM
Non-credible contingency event - NSW region - 17/01/2025
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - NSW region - 17/01/2025
At 0825 hrs the Buronga 330 kV B 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.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Non-credible contingency event - NSW region - 17/01/2025
At 0825 hrs the Buronga 330 kV B 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.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
123354POWER SYSTEM EVENTS15/01/2025 10:45:07 PM
Non-credible contingency event - NSW region - 15/01/2025
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - NSW region - 15/01/2025
At 2019 hrs the Tomago - Taree (963) 132kV line and the Tomago - Brandy Hill (96C) 132kV line tripped.
AEMO did not instruct load shedding.
AEMO has been advised of disconnection of 80 MW 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 - NSW region - 15/01/2025
At 2019 hrs the Tomago - Taree (963) 132kV line and the Tomago - Brandy Hill (96C) 132kV line tripped.
AEMO did not instruct load shedding.
AEMO has been advised of disconnection of 80 MW of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
122663MINIMUM SYSTEM LOAD01/01/2025 02:06:40 PM
Cancellation of Actual Minimum System Load (MSL) MSL1 event in the VIC Region on 01/01/2025.
AEMO ELECTRICITY MARKET NOTICE
Cancellation of Actual Minimum System Load (MSL) MSL1 event in the VIC Region on 01/01/2025.
Cancellation - Actual MSL1- VIC Region at 1400 hrs 01/01/2025.
Refer to Market Notice 122654 for MSL1.
Manager NEM Real Time Operations
Cancellation of Actual Minimum System Load (MSL) MSL1 event in the VIC Region on 01/01/2025.
Cancellation - Actual MSL1- VIC Region at 1400 hrs 01/01/2025.
Refer to Market Notice 122654 for MSL1.
Manager NEM Real Time Operations
122654MINIMUM SYSTEM LOAD01/01/2025 11:56:13 AM
Actual Minimum System Load MSL1 condition in the VIC Region on 01/01/2025
AEMO ELECTRICITY MARKET NOTICE
Actual Minimum System Load MSL1 condition in the VIC Region on 01/01/2025
Update to Market Notice 122653 - AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the VIC on 01/01/2025.
Minimum regional demand is forecast to be 1398 MW at 1300 hrs, and the advisory threshold is:
- MSL1 - 1535 MW
- MSL2 - 1035 MW
- MSL3 - 535 MW
The regional demand is below the MSL1 threshold. The actual MSL1 condition is forecast to exist until 1400 hrs.
Manager NEM Real Time Operations
Actual Minimum System Load MSL1 condition in the VIC Region on 01/01/2025
Update to Market Notice 122653 - AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the VIC on 01/01/2025.
Minimum regional demand is forecast to be 1398 MW at 1300 hrs, and the advisory threshold is:
- MSL1 - 1535 MW
- MSL2 - 1035 MW
- MSL3 - 535 MW
The regional demand is below the MSL1 threshold. The actual MSL1 condition is forecast to exist until 1400 hrs.
Manager NEM Real Time Operations