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91988POWER SYSTEM EVENTS27/10/2021 01:06:32 PM
Non-credible contingency event - VIC region - 27/10/2021
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - Vic region - 27/10/2021
At 1226 hrs the Wodonga to Dederang 330 kV line opened at the Wodonga end only.
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.
AEMO will not reclassify this event as a credible contingency event.
At 1239 hrs the Wodonga to Dederang 330 kV line was returned to service.
Manager NEM Real Time Operations
Non-credible contingency event - Vic region - 27/10/2021
At 1226 hrs the Wodonga to Dederang 330 kV line opened at the Wodonga end only.
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.
AEMO will not reclassify this event as a credible contingency event.
At 1239 hrs the Wodonga to Dederang 330 kV line was returned to service.
Manager NEM Real Time Operations
91983RECLASSIFY CONTINGENCY27/10/2021 08:32:39 AM
Cancellation of the reclassification of a Non-Credible Contingency Event: Brinkworth-Davenport, Brinkworth-Templers West and Para-Templers West 275kV lines in SA due to severe weather warning.
AEMO ELECTRICITY MARKET NOTICE.
Cancellation of the reclassification of a non-credible contingency event as a credible contingency event due to severe weather warning.
AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any severe weather warning in the vicinity of the following lines. Accordingly, its classification has reverted to a non-credible contingency event.
Region: SA
Lines: Brinkworth-Davenport, Brinkworth-Templers West and Para-Templers West 275kV lines
Cancellation time: 0815 hrs 27/10/2021
Constraint set(s) revoked: Nil
Refer AEMO Electricity Market Notice 91981
Manager NEM Real Time Operations
Cancellation of the reclassification of a non-credible contingency event as a credible contingency event due to severe weather warning.
AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any severe weather warning in the vicinity of the following lines. Accordingly, its classification has reverted to a non-credible contingency event.
Region: SA
Lines: Brinkworth-Davenport, Brinkworth-Templers West and Para-Templers West 275kV lines
Cancellation time: 0815 hrs 27/10/2021
Constraint set(s) revoked: Nil
Refer AEMO Electricity Market Notice 91981
Manager NEM Real Time Operations
91982MARKET SYSTEMS27/10/2021 07:45:38 AM
CHG0070801 | Completed | Pre-Production | MSATS Pre-Production Release
Change Number: CHG0070801
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: MSATS - Meter Data Management
Change Title: MSATS Pre-Production Release
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: MSATS - Meter Data Management
Change Title: MSATS Pre-Production Release
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
91981RECLASSIFY CONTINGENCY27/10/2021 07:01:29 AM
Reclassification of a Non-Credible Contingency Event: Brinkworth-Davenport, Brinkworth-Templers West and Para-Templers West 275kV lines in SA due to severe weather warning.
AEMO ELECTRICITY MARKET NOTICE.
Reclassification of a non-credible contingency event as a credible contingency event due to severe weather warning.
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.
Region: SA
Lines: Brinkworth-Davenport, Brinkworth-Templers West and Para-Templers West 275kV lines
Duration: 0700 hrs 27/10/2021 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations
Reclassification of a non-credible contingency event as a credible contingency event due to severe weather warning.
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.
Region: SA
Lines: Brinkworth-Davenport, Brinkworth-Templers West and Para-Templers West 275kV lines
Duration: 0700 hrs 27/10/2021 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations
91980RECLASSIFY CONTINGENCY26/10/2021 09:49:30 PM
Cancellation of a Non-Credible Contingency Event: Tarong - Chinchilla No.7168 132 kV line and Tarong - Chinchilla No.7183 132 kV line in QLD1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. 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.
Region: QLD1
Lines: Tarong - Chinchilla No.7168 132 kV and Tarong - Chinchilla No.7183 132 kV
Cancellation time: 26/10/2021 21:49
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 91979
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. 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.
Region: QLD1
Lines: Tarong - Chinchilla No.7168 132 kV and Tarong - Chinchilla No.7183 132 kV
Cancellation time: 26/10/2021 21:49
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 91979
Auto-generated on behalf of Manager NEM Real Time Operations
91979RECLASSIFY CONTINGENCY26/10/2021 08:45:56 PM
Reclassification of a Non-Credible Contingency Event: Tarong - Chinchilla No.7168 132 kV line and Tarong - Chinchilla No.7183 132 kV line in QLD1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event 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.
Region: QLD1
Lines: Tarong - Chinchilla No.7168 132 kV and Tarong - Chinchilla No.7183 132 kV
Duration: 26/10/2021 20:45 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event 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.
Region: QLD1
Lines: Tarong - Chinchilla No.7168 132 kV and Tarong - Chinchilla No.7183 132 kV
Duration: 26/10/2021 20:45 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
91978RESERVE NOTICE26/10/2021 07:50:42 PM
PDPASA - Cancellation of Actual (LOR1) condition in the QLD region - 26/10/2021
AEMO ELECTRICITY MARKET NOTICE
PDPASA - Cancellation of Actual (LOR1) condition in the QLD region - 26/10/2021
The Actual LOR1 Condition in the QLD Region advised in AEMO Electricity Market Notice No 91976 is cancelled at 1930 hrs 26/10/2021
Manager NEM Real Time Operations
PDPASA - Cancellation of Actual (LOR1) condition in the QLD region - 26/10/2021
The Actual LOR1 Condition in the QLD Region advised in AEMO Electricity Market Notice No 91976 is cancelled at 1930 hrs 26/10/2021
Manager NEM Real Time Operations
91977RECLASSIFY CONTINGENCY26/10/2021 07:19:32 PM
Cancellation of a Non-Credible Contingency Event: Tarong - Chinchilla No.7168 132 kV line and Tarong - Chinchilla No.7183 132 kV line in QLD1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. 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.
Region: QLD1
Lines: Tarong - Chinchilla No.7168 132 kV and Tarong - Chinchilla No.7183 132 kV
Cancellation time: 26/10/2021 19:19
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 91966
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. 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.
Region: QLD1
Lines: Tarong - Chinchilla No.7168 132 kV and Tarong - Chinchilla No.7183 132 kV
Cancellation time: 26/10/2021 19:19
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 91966
Auto-generated on behalf of Manager NEM Real Time Operations
91976RESERVE NOTICE26/10/2021 06:25:49 PM
PDPASA - Actual Lack Of Reserve Level 1 (LOR1) in the QLD Region on 26/10/2021
AEMO ELECTRICITY MARKET NOTICE
Actual Lack Of Reserve Level 1 (LOR1) in the QLD region - 26/10/2021
An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the QLD region from 1800 hrs.
The Actual LOR1 condition is forecast to exist until 1900 hrs.
The forecast capacity reserve requirement is 942 MW.
The minimum capacity reserve available is 844 MW.
Manager NEM Real Time Operations
Actual Lack Of Reserve Level 1 (LOR1) in the QLD region - 26/10/2021
An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the QLD region from 1800 hrs.
The Actual LOR1 condition is forecast to exist until 1900 hrs.
The forecast capacity reserve requirement is 942 MW.
The minimum capacity reserve available is 844 MW.
Manager NEM Real Time Operations