Market Notices

117219RECLASSIFY CONTINGENCY27/06/2024 02:53:01 PM

Reclassification of a Non-Credible Contingency Event: Bannaby - Mt Piper 5A6 500kV line and Bannaby - Mt Piper 5A7 500kV line in NSW1 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: NSW1

Lines: Bannaby - Mt Piper 5A6 500kV and Bannaby - Mt Piper 5A7 500kV

Duration: 27/06/2024 14:52 until further notice

Constraint set(s) invoked:
N-5A6+5A7_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
VIC1-NSW1


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117213MARKET SYSTEMS27/06/2024 10:38:37 AM

CHG0090782 | Completed | Production | Planned Outage for the Gas Short Term Trading Market Systems Production.

Change Number: CHG0090782

Notification issued to: Market Notice

Notification Type: Completed

Change Type: Normal

Service/Component: Short Term Trading Market

Change Title: Planned Outage for the Gas Short Term Trading Market Systems Production.

Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
     
117212RECLASSIFY CONTINGENCY27/06/2024 10:09:04 AM

Update - Non-credible contingency event - NSW region - 27/06/2024

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - NSW region - 27/06/2024

Refer AEMO Electricity Market Notice 117210

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: Sydney West No.1 330 kV SVC and any single Sydney West 330/132 kV transformer
Duration: 0944 hrs 27/06/2024 until further notice
Constraint set(s) invoked: Nil

Manager NEM Real Time Operations
     
117211RECLASSIFY CONTINGENCY27/06/2024 09:19:05 AM

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: 27/06/2024 09:19

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 117209

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117209RECLASSIFY CONTINGENCY27/06/2024 08:17:30 AM

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: 27/06/2024 08:17 until further notice

Constraint set(s) invoked:
NONE

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117205MARKET SYSTEMS26/06/2024 02:59:07 PM

CHG0090805 | Completed | Production | Identity Service Site Transfer

Change Number: CHG0090805

Notification issued to: Market Notice

Notification Type: Completed

Change Type: Normal

Service/Component: Identity Service (IDS)

Change Title: Identity Service Site Transfer

Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
     
117200INTER-REGIONAL TRANSFER26/06/2024 02:36:10 PM

Inter-regional transfer limit variation - Heywood - South East No 2 275 kV Line - SA region - 26/06/2024

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation -Heywood - South East No 2 275 kV Line SA region - 26/06/2024

A planned outage of Heywood - South East No 2 275 kV Line in the SA region was scheduled from 0815 hrs 26/06/2024 to 1930 hrs 26/06/2024.

The outage has been completed and Heywood - South East No 2 275 kV Line returned to service at 1410 hrs 26/06/2024

Constraint set(s) revoked:
I-HYSE
I-VS_050
I-VS+LKB_050

Manager NEM Real Time Operations
     
117199RECLASSIFY CONTINGENCY26/06/2024 12:39:05 PM

Cancellation of a Non-Credible Contingency Event: Norwood - Scottsdale 1 110kV line and Norwood-Derby-Scottsdale 110kV 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: Norwood - Scottsdale 1 110kV and Norwood-Derby-Scottsdale 110kV

Cancellation time: 26/06/2024 12:39

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 117196

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117198RECLASSIFY CONTINGENCY26/06/2024 12:24:06 PM

Cancellation of a Non-Credible Contingency Event: Palmerston - Hadspen 3 & 4 110kV line and 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: Palmerston - Hadspen 3 & 4 110kV and

Cancellation time: 26/06/2024 12:24

Constraint set(s) revoked:
T-HAPM_110_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE


Refer AEMO Electricity Market Notice 117195

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