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128096RECLASSIFY CONTINGENCY11/07/2025 06:24:50 PM
Cancellation of a Non-Credible Contingency Event: Farrell-John Butters line and Farrell-Rosebery-Newton-Queenstown line in TAS1 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: TAS1
Lines: Farrell-John Butters and Farrell-Rosebery-Newton-Queenstown
Cancellation time: 11/07/2025 18:24
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 128095
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: TAS1
Lines: Farrell-John Butters and Farrell-Rosebery-Newton-Queenstown
Cancellation time: 11/07/2025 18:24
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 128095
Auto-generated on behalf of Manager NEM Real Time Operations
128095RECLASSIFY CONTINGENCY11/07/2025 05:19:10 PM
Reclassification of a Non-Credible Contingency Event: Farrell-John Butters line and Farrell-Rosebery-Newton-Queenstown line in TAS1 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: TAS1
Lines: Farrell-John Butters and Farrell-Rosebery-Newton-Queenstown
Duration: 11/07/2025 17:19 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: TAS1
Lines: Farrell-John Butters and Farrell-Rosebery-Newton-Queenstown
Duration: 11/07/2025 17:19 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
128090MARKET SYSTEMS11/07/2025 11:07:21 AM
Completed - CHG0104394 - Planned maintenance affecting the AEMO Market Network.
Change Number: CHG0104394
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: MarketNet
Change Title: Planned maintenance affecting the AEMO Market Network.
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: MarketNet
Change Title: Planned maintenance affecting the AEMO Market Network.
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
128087MARKET SYSTEMS10/07/2025 10:05:42 AM
Completed - CHG0104582 - Pre-Prod eMDM Maintenance Release
Change Number: CHG0104582
Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: MDM - Meter Data Management_PreProd
Change Title: Pre-Prod eMDM Maintenance Release
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: MDM - Meter Data Management_PreProd
Change Title: Pre-Prod eMDM Maintenance Release
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
128086NON-CONFORMANCE10/07/2025 08:45:11 AM
NON-CONFORMANCE Region NSW1 Thursday, 10 July 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE NSW1 Region Thursday, 10 July 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: WTAHB1
Duration: 10/07/2025 08:40 to 10/07/2025 08:45
Amount: 12 MW
Constraint: NC-N_WTAHB1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE NSW1 Region Thursday, 10 July 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: WTAHB1
Duration: 10/07/2025 08:40 to 10/07/2025 08:45
Amount: 12 MW
Constraint: NC-N_WTAHB1
Auto-generated on behalf of Manager NEM Real Time Operations
128085RECLASSIFY CONTINGENCY09/07/2025 10:41:03 PM
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: 2040 hrs 09/07/2025
Constraint set(s) revoked: Nil
Refer AEMO Electricity Market Notice 127997
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: 2040 hrs 09/07/2025
Constraint set(s) revoked: Nil
Refer AEMO Electricity Market Notice 127997
Manager NEM Real Time Operations
128084RECLASSIFY CONTINGENCY09/07/2025 10:36:43 PM
Cancellation: Reclassification of non-credible contingency event due to existence of widespread abnormal condition/s - SA region.
AEMO ELECTRICITY MARKET NOTICE.
AEMO considers the occurrence of a non-credible contingency event due to the widespread abnormal conditions advised in AEMO Electricity Market Notice 128068 is no longer reasonably possible and accordingly its classification has reverted to non-credible.
Cancellation time: 2240 hrs 09/07/2025
Constraint set(s) revoked: I-VS_250
Manager NEM Real Time Operations
AEMO considers the occurrence of a non-credible contingency event due to the widespread abnormal conditions advised in AEMO Electricity Market Notice 128068 is no longer reasonably possible and accordingly its classification has reverted to non-credible.
Cancellation time: 2240 hrs 09/07/2025
Constraint set(s) revoked: I-VS_250
Manager NEM Real Time Operations
128083RECLASSIFY CONTINGENCY09/07/2025 09:09:30 PM
Cancellation of a Non-Credible Contingency Event: Penola West - South East 1 132kV line and Kincraig - Penola West 1 132kV line in SA1 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: SA1
Lines: Penola West - South East 1 132kV and Kincraig - Penola West 1 132kV
Cancellation time: 09/07/2025 21:09
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 128069
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: SA1
Lines: Penola West - South East 1 132kV and Kincraig - Penola West 1 132kV
Cancellation time: 09/07/2025 21:09
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 128069
Auto-generated on behalf of Manager NEM Real Time Operations
128069RECLASSIFY CONTINGENCY09/07/2025 08:07:15 PM
Reclassification of a Non-Credible Contingency Event: Penola West - South East 1 132kV line and Kincraig - Penola West 1 132kV line in SA1 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: SA1
Lines: Penola West - South East 1 132kV and Kincraig - Penola West 1 132kV
Duration: 09/07/2025 20:07 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: SA1
Lines: Penola West - South East 1 132kV and Kincraig - Penola West 1 132kV
Duration: 09/07/2025 20:07 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations