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118601RECLASSIFY CONTINGENCY05/10/2024 12:54:20 AM
Cancellation of a Non-Credible Contingency Event: Eildon PS - Mt Beauty No.1 220 kV line and Eildon PS - Mt Beauty No.2 220 kV line in VIC1 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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Cancellation time: 05/10/2024 00:54
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 118599
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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Cancellation time: 05/10/2024 00:54
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 118599
Auto-generated on behalf of Manager NEM Real Time Operations
118600RECLASSIFY CONTINGENCY04/10/2024 09:24:22 PM
Reclassification of non-credible contingency event due to existence of widespread abnormal condition/s - NEM regions
AEMO ELECTRICITY MARKET NOTICE.
AEMO has identified that a non-credible contingency event impacting the power system is more likely to occur and is considered reasonably possible because of the existence of widespread abnormal conditions namely Severe Space Weather Watch in the NEM regions.
AEMO has therefore reclassified the occurrence of a non-credible contingency event involving multiple plant due to these abnormal conditions as credible.
Duration: 2100 hrs 04/10/2024 until further notice
Need for further measures is being monitored and further measures may be implemented in line with the Power System Security Guidelines (SO_OP_3715).
Manager NEM Real Time Operations
AEMO has identified that a non-credible contingency event impacting the power system is more likely to occur and is considered reasonably possible because of the existence of widespread abnormal conditions namely Severe Space Weather Watch in the NEM regions.
AEMO has therefore reclassified the occurrence of a non-credible contingency event involving multiple plant due to these abnormal conditions as credible.
Duration: 2100 hrs 04/10/2024 until further notice
Need for further measures is being monitored and further measures may be implemented in line with the Power System Security Guidelines (SO_OP_3715).
Manager NEM Real Time Operations
118599RECLASSIFY CONTINGENCY04/10/2024 08:50:33 PM
Reclassification of a Non-Credible Contingency Event: Eildon PS - Mt Beauty No.1 220 kV line and Eildon PS - Mt Beauty No.2 220 kV line in VIC1 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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Duration: 04/10/2024 20:50 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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Duration: 04/10/2024 20:50 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
118592RECLASSIFY CONTINGENCY03/10/2024 05:51:57 PM
Cancellation of the Reclassification of a Non-Credible Contingency Event: Farrell - Reece No. 1 and No. 2 220kV lines in TAS due to bushfire.
AEMO ELECTRICITY MARKET NOTICE
AEMO no longer considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has cancelled the reclassification as a credible contingency event.
Region: TAS
Lines: Farrell - Reece No. 1 and No. 2 220kV lines
Cancellation time: 17:40 hrs 03/10/2024
Constraint set(s) invoked: F-T-FARE_N-2
Refer AEMO Electricity Market Notice 118589
Manager NEM Real Time Operations
AEMO no longer considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has cancelled the reclassification as a credible contingency event.
Region: TAS
Lines: Farrell - Reece No. 1 and No. 2 220kV lines
Cancellation time: 17:40 hrs 03/10/2024
Constraint set(s) invoked: F-T-FARE_N-2
Refer AEMO Electricity Market Notice 118589
Manager NEM Real Time Operations
118589RECLASSIFY CONTINGENCY03/10/2024 02:44:14 PM
Reclassification of a Non-Credible Contingency Event: Farrell - Reece No. 1 and No. 2 220kV lines in TAS due to bushfire.
AEMO ELECTRICITY MARKET NOTICE.
Reclassification of a Non-Credible Contingency Event: Farrell - Reece No. 1 and No. 2 220kV lines in TAS due to bushfire.
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: TAS
Lines: Farrell - Reece No. 1 and No. 2 220kV lines
Duration: 03/10/2024 1445 hrs until further notice
Constraint set(s) invoked: F-T-FARE_N-2
Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event: Farrell - Reece No. 1 and No. 2 220kV lines in TAS due to bushfire.
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: TAS
Lines: Farrell - Reece No. 1 and No. 2 220kV lines
Duration: 03/10/2024 1445 hrs until further notice
Constraint set(s) invoked: F-T-FARE_N-2
Manager NEM Real Time Operations
118587RECLASSIFY CONTINGENCY03/10/2024 12:11:42 PM
Cancellation of Reclassification of a Non-Credible Contingency Event: Glenrowan No1 66kV Bus- Vic region - 18/06/2024.
AEMO ELECTRICITY MARKET NOTICE
Cancellation of Reclassification of a Non-Credible Contingency Event: Glenrowan No1 66kV Bus- Vic region - 18/06/2024.
Refer AEMO Electricity Market Notice 117043
Based on advice from the asset owner, AEMO considers the trip of the following element is no longer reasonably possible. Accordingly its classification has reverted to a non-credible contingency event.
Region: Vic
Equipment: Glenrowan No1 66kV Bus
Cancellation time: 1215 hrs 03/10/2024
Constraint set(s) revoked: Nil
Manager NEM Real Time Operations
Cancellation of Reclassification of a Non-Credible Contingency Event: Glenrowan No1 66kV Bus- Vic region - 18/06/2024.
Refer AEMO Electricity Market Notice 117043
Based on advice from the asset owner, AEMO considers the trip of the following element is no longer reasonably possible. Accordingly its classification has reverted to a non-credible contingency event.
Region: Vic
Equipment: Glenrowan No1 66kV Bus
Cancellation time: 1215 hrs 03/10/2024
Constraint set(s) revoked: Nil
Manager NEM Real Time Operations
118571INTER-REGIONAL TRANSFER03/10/2024 09:29:33 AM
Inter-regional transfer limit variation - Bannaby -Sydney West 39 330 kV line - NSW region - 03/10/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Bannaby -Sydney West 39 330 kV line- NSW region - 03/10/2024
A planned outage of Bannaby -Sydney West 39 330 kV line in the NSW region was scheduled from 0700 hrs 16/09/2024 to 1600 hrs 11/10/2024.
The outage has been completed and Bannaby -Sydney West 39 330 kV line returned to service at 0920 hrs 03/10/2024
Constraint set revoked: N-BYSW_39_15M
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Bannaby -Sydney West 39 330 kV line- NSW region - 03/10/2024
A planned outage of Bannaby -Sydney West 39 330 kV line in the NSW region was scheduled from 0700 hrs 16/09/2024 to 1600 hrs 11/10/2024.
The outage has been completed and Bannaby -Sydney West 39 330 kV line returned to service at 0920 hrs 03/10/2024
Constraint set revoked: N-BYSW_39_15M
Manager NEM Real Time Operations
118569RECLASSIFY CONTINGENCY02/10/2024 07:42:34 PM
Cancellation: Reclassification of a Non-Credible Contingency Event: Biloela -Biloela Tee 7110/2 132kV line and Biloela -Biloela Tee 7109/2 132kV line in QLD due to Other Threats.
AEMO ELECTRICITY MARKET NOTICE.
AEMO considers the occurrence of a non-credible contingency event due to other threats advised in AEMO Electricity Market Notice 118563 is no longer reasonably possible and accordingly its classification has reverted to non-credible.
Cancellation time: 1930 hrs 02/10/2024.
Manager NEM Real Time Operations
AEMO considers the occurrence of a non-credible contingency event due to other threats advised in AEMO Electricity Market Notice 118563 is no longer reasonably possible and accordingly its classification has reverted to non-credible.
Cancellation time: 1930 hrs 02/10/2024.
Manager NEM Real Time Operations
118563RECLASSIFY CONTINGENCY02/10/2024 02:58:34 PM
Reclassification of a Non-Credible Contingency Event: Biloela -Biloela Tee 7110/2 132kV line and Biloela -Biloela Tee 7109/2 132kV line in QLD due to Other Threats.
AEMO ELECTRICITY MARKET NOTICE.
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Other Threats. 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: QLD
Lines: Biloela -Biloela Tee 7110/2 132kV line and Biloela -Biloela Tee 7109/2 132kV line
Duration:15:00 hrs 02/10/2024 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 Other Threats. 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: QLD
Lines: Biloela -Biloela Tee 7110/2 132kV line and Biloela -Biloela Tee 7109/2 132kV line
Duration:15:00 hrs 02/10/2024 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations