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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
108767RESERVE NOTICE26/06/2023 07:46:50 PM
Cancellation of Actual (LOR1) condition in the SA region - 26/06/2023
AEMO ELECTRICITY MARKET NOTICE
Cancellation of Actual (LOR1) condition in the SA region - 26/06/2023
The Actual LOR1 Condition in the SA Region advised in AEMO Electricity Market Notice No. 108766 is cancelled at 1945 hrs.
Manager NEM Real Time Operations
Cancellation of Actual (LOR1) condition in the SA region - 26/06/2023
The Actual LOR1 Condition in the SA Region advised in AEMO Electricity Market Notice No. 108766 is cancelled at 1945 hrs.
Manager NEM Real Time Operations
108766RESERVE NOTICE26/06/2023 07:20:37 PM
Actual Lack Of Reserve Level 1 (LOR1) in the SA region - 26/06/2023
AEMO ELECTRICITY MARKET NOTICE
Actual Lack Of Reserve Level 1 (LOR1) in the SA region - 26/06/2023
An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the SA region from 1900 hrs.
The Actual LOR1 condition is forecast to exist until 1930 hrs.
The forecast capacity reserve requirement is 600 MW.
The minimum capacity reserve available is 594 MW.
Manager NEM Real Time Operations
Actual Lack Of Reserve Level 1 (LOR1) in the SA region - 26/06/2023
An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the SA region from 1900 hrs.
The Actual LOR1 condition is forecast to exist until 1930 hrs.
The forecast capacity reserve requirement is 600 MW.
The minimum capacity reserve available is 594 MW.
Manager NEM Real Time Operations
108648RESERVE NOTICE21/06/2023 06:54:03 PM
Cancellation of Actual (LOR1) condition in the NSW region - 21/06/2023
AEMO ELECTRICITY MARKET NOTICE
Cancellation of Actual (LOR1) condition in the NSW region - 21/06/2023
The Actual LOR1 Condition in the NSW Region advised in AEMO Electricity Market Notice No. 108647 is cancelled at 1845 hrs.
Manager NEM Real Time Operations
Cancellation of Actual (LOR1) condition in the NSW region - 21/06/2023
The Actual LOR1 Condition in the NSW Region advised in AEMO Electricity Market Notice No. 108647 is cancelled at 1845 hrs.
Manager NEM Real Time Operations
108647RESERVE NOTICE21/06/2023 05:49:17 PM
Actual Lack Of Reserve Level 1 (LOR1) in the NSW Region on 21/06/2023
AEMO ELECTRICITY MARKET NOTICE
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 21/06/2023
An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the NSW region from 1730 hrs.
The Actual LOR1 condition is forecast to exist until 1930 hrs.
The forecast capacity reserve requirement is 1613 MW.
The minimum capacity reserve available is 1453 MW.
Manager NEM Real Time Operations
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 21/06/2023
An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the NSW region from 1730 hrs.
The Actual LOR1 condition is forecast to exist until 1930 hrs.
The forecast capacity reserve requirement is 1613 MW.
The minimum capacity reserve available is 1453 MW.
Manager NEM Real Time Operations
108642RESERVE NOTICE20/06/2023 07:38:22 PM
Cancellation of Actual (LOR1) condition in the NSW region - 20/06/2023
AEMO ELECTRICITY MARKET NOTICE
Cancellation of Actual (LOR1) condition in the NSW region - 20/06/2023
The Actual LOR1 Condition in the NSW Region advised in AEMO Electricity Market Notice No. 108640 is cancelled at 1940 hrs.
Manager NEM Real Time Operations
Cancellation of Actual (LOR1) condition in the NSW region - 20/06/2023
The Actual LOR1 Condition in the NSW Region advised in AEMO Electricity Market Notice No. 108640 is cancelled at 1940 hrs.
Manager NEM Real Time Operations
108640RESERVE NOTICE20/06/2023 05:54:53 PM
Actual Lack Of Reserve Level 1 (LOR1) in the NSW Region on 20/06/2023
AEMO ELECTRICITY MARKET NOTICE
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 20/06/2023
An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the NSW region from 1730 hrs.
The Actual LOR1 condition is forecast to exist until 1900 hrs.
The forecast capacity reserve requirement is 1631 MW.
The minimum capacity reserve available is 1564 MW.
Manager NEM Real Time Operations
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 20/06/2023
An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the NSW region from 1730 hrs.
The Actual LOR1 condition is forecast to exist until 1900 hrs.
The forecast capacity reserve requirement is 1631 MW.
The minimum capacity reserve available is 1564 MW.
Manager NEM Real Time Operations