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108849POWER SYSTEM EVENTS09/07/2023 03:35:33 PM
Update - Non-credible contingency event - Vic region - 09/07/2023
AEMO ELECTRICITY MARKET NOTICE.
Refer AEMO ELECTRICITY MARKET NOTICE 108846
At 1527 hrs the Mortlake - Blue Gum 500kV Line and Blue Gum to DDWF Line were 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
Refer AEMO ELECTRICITY MARKET NOTICE 108846
At 1527 hrs the Mortlake - Blue Gum 500kV Line and Blue Gum to DDWF Line were 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
108846POWER SYSTEM EVENTS09/07/2023 08:34:15 AM
Non-credible contingency event - Vic region - 09/07/2023
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - Vic region - 09/07/2023
At 0653 hrs the following elements tripped;
- Mortlake PS - Blue Gum 500 kV Line,
- Blue Gum A1 500/220 kV Transformer
- Dundonnell WF tripped.
- MOPS G11 Trans No2 Bus 500 kV CB 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 - Vic region - 09/07/2023
At 0653 hrs the following elements tripped;
- Mortlake PS - Blue Gum 500 kV Line,
- Blue Gum A1 500/220 kV Transformer
- Dundonnell WF tripped.
- MOPS G11 Trans No2 Bus 500 kV CB 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
108788POWER SYSTEM EVENTS29/06/2023 08:51:49 PM
Non-credible contingency event - Vic region - 29/06/2023
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - Vic region - 29/06/2023
At 1454 hrs the Altona - Keilor 220 kV line and the Salt Creek windfarm 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.
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: Vic
Duration: 2045 hrs 29/06/2023 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations
Non-credible contingency event - Vic region - 29/06/2023
At 1454 hrs the Altona - Keilor 220 kV line and the Salt Creek windfarm 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.
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: Vic
Duration: 2045 hrs 29/06/2023 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations
108751RESERVE NOTICE26/06/2023 10:49:35 AM
STPASA - Cancellation of the Forecast Lack Of Reserve Level 3 (LOR3) in the SA Region on 27/06/2023
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR3 condition in the SA region advised in AEMO Electricity Market Notice No. 108747 is cancelled at 1000 hrs 26/06/2023.
AEMO Operations
The Forecast LOR3 condition in the SA region advised in AEMO Electricity Market Notice No. 108747 is cancelled at 1000 hrs 26/06/2023.
AEMO Operations
108747RESERVE NOTICE26/06/2023 05:41:37 AM
STPASA - Update of the Forecast Lack Of Reserve Level 3 (LOR3) in the SA Region on 27/06/2023
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR3 condition in the SA region advised in AEMO Electricity Market Notice No. 108740 has been updated at 0530 hrs to the following:
From 1800 hrs 27/06/2023 to 1930 hrs 27/06/2023.
The maximum load (other than interruptible loads) forecast to be interrupted is 43 MW at 1830 hrs.
.
AEMO is seeking a market response.
AEMO estimates the latest time it would need to intervene through an AEMO intervention event is 0600 hrs on 27/06/2023.
Manager NEM Real Time Operations
The Forecast LOR3 condition in the SA region advised in AEMO Electricity Market Notice No. 108740 has been updated at 0530 hrs to the following:
From 1800 hrs 27/06/2023 to 1930 hrs 27/06/2023.
The maximum load (other than interruptible loads) forecast to be interrupted is 43 MW at 1830 hrs.
.
AEMO is seeking a market response.
AEMO estimates the latest time it would need to intervene through an AEMO intervention event is 0600 hrs on 27/06/2023.
Manager NEM Real Time Operations
108740RESERVE NOTICE25/06/2023 10:44:08 PM
STPASA - Forecast Lack Of Reserve Level 3 (LOR3) in the SA Region on 27/06/2023
AEMO ELECTRICITY MARKET NOTICE
AEMO declares a Forecast LOR3 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following period:
From 1800 hrs 27/06/2023 to 1900 hrs 27/06/2023.
The maximum load (other than interruptible loads) forecast to be interrupted is 5 MW at 1830 hrs.
AEMO is seeking a market response.
AEMO estimates the latest time it would need to intervene through an AEMO intervention event is 0600 hrs on 27/06/2023.
Manager NEM Real Time Operations
AEMO declares a Forecast LOR3 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following period:
From 1800 hrs 27/06/2023 to 1900 hrs 27/06/2023.
The maximum load (other than interruptible loads) forecast to be interrupted is 5 MW at 1830 hrs.
AEMO is seeking a market response.
AEMO estimates the latest time it would need to intervene through an AEMO intervention event is 0600 hrs on 27/06/2023.
Manager NEM Real Time Operations
108729RESERVE NOTICE25/06/2023 08:28:49 AM
STPASA - Cancellation of the Forecast Lack Of Reserve Level 3 (LOR3) in the SA Region on 27/06/2023
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR3 condition in the SA region advised in AEMO Electricity Market Notice No. 108727 is cancelled at 0800 hrs 25/06/2023.
Manager NEM Real Time Operations
The Forecast LOR3 condition in the SA region advised in AEMO Electricity Market Notice No. 108727 is cancelled at 0800 hrs 25/06/2023.
Manager NEM Real Time Operations
108727RESERVE NOTICE24/06/2023 10:47:54 PM
STPASA - Forecast Lack Of Reserve Level 3 (LOR3) in the SA Region on 27/06/2023
AEMO ELECTRICITY MARKET NOTICE
AEMO declares a Forecast LOR3 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following period:
[1.] From 1800 hrs 27/06/2023 to 2000 hrs 27/06/2023.
The maximum load (other than interruptible loads) forecast to be interrupted is 108 MW at 1830 hrs.
AEMO is seeking a market response.
AEMO estimates the latest time it would need to intervene through an AEMO intervention event is 0600 hrs on 27/06/2023.
Manager NEM Real Time Operations
AEMO declares a Forecast LOR3 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following period:
[1.] From 1800 hrs 27/06/2023 to 2000 hrs 27/06/2023.
The maximum load (other than interruptible loads) forecast to be interrupted is 108 MW at 1830 hrs.
AEMO is seeking a market response.
AEMO estimates the latest time it would need to intervene through an AEMO intervention event is 0600 hrs on 27/06/2023.
Manager NEM Real Time Operations
108414POWER SYSTEM EVENTS08/06/2023 02:56:53 PM
Non-credible contingency event - NSW region - 08/06/2023
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - NSW region - 08/06/2023
At 1433 hrs the Liddell - Tomago 330 kV 82 line and Liddell 330 kV CB 5412 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 - NSW region - 08/06/2023
At 1433 hrs the Liddell - Tomago 330 kV 82 line and Liddell 330 kV CB 5412 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