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117306RECLASSIFY CONTINGENCY06/07/2024 09:34:08 PM
Reclassification of non-credible contingency event due to existence of widespread abnormal conditions - SA region.
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 weather in the SA region.
AEMO has therefore reclassified the occurrence of a non-credible contingency event involving multiple plant due to these abnormal conditions as credible.
AEMO has taken the following action to maintain power system security at 2120 hrs 06/07/2024.
Constraint set invoked: I-VS_250
Duration: 2120 hrs 06/07/2024 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 weather in the SA region.
AEMO has therefore reclassified the occurrence of a non-credible contingency event involving multiple plant due to these abnormal conditions as credible.
AEMO has taken the following action to maintain power system security at 2120 hrs 06/07/2024.
Constraint set invoked: I-VS_250
Duration: 2120 hrs 06/07/2024 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
117300INTER-REGIONAL TRANSFER06/07/2024 10:34:25 AM
Inter-regional transfer limit variation -Murraylink - SA region - 06/07/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation -Murraylink - SA region - 06/07/2024
A planned outage of Murraylink in the SA region was scheduled from 0700 hrs 28/06/2024 to 1700 hrs 09/07/2024.
The outage has been completed and Murraylink returned to service at 1035 hrs 06/07/2024
Constraint set(s) revoked: I-MURRAYLINK
Manager NEM Real Time Operations
Inter-regional transfer limit variation -Murraylink - SA region - 06/07/2024
A planned outage of Murraylink in the SA region was scheduled from 0700 hrs 28/06/2024 to 1700 hrs 09/07/2024.
The outage has been completed and Murraylink returned to service at 1035 hrs 06/07/2024
Constraint set(s) revoked: I-MURRAYLINK
Manager NEM Real Time Operations
117298RECLASSIFY CONTINGENCY06/07/2024 02:40:53 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: 1400 hrs 06/07/2024
Constraint set(s) revoked: Nil
Refer AEMO Electricity Market Notice 117297
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: 1400 hrs 06/07/2024
Constraint set(s) revoked: Nil
Refer AEMO Electricity Market Notice 117297
Manager NEM Real Time Operations
117297RECLASSIFY CONTINGENCY05/07/2024 09:29:06 PM
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: 05/07/2024 21:30 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: 05/07/2024 21:30 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations
117290INTER-REGIONAL TRANSFER04/07/2024 02:18:46 PM
Inter-regional transfer limit variation - Crookwell- Gullen Range 3H and Bannaby - Crookwell 61 330 kV lines - NSW region - 04/07/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Crookwell- Gullen Range 3H and Bannaby - Crookwell 61 330 kV lines - NSW region - 04/07/2024
A planned outage of Crookwell- Gullen Range 3H and Bannaby - Crookwell 61 330 kV lines in the NSW region was scheduled from 0800 hrs 03/07/2024 to 1700 hrs 04/07/2024.
The outage has been completed and Crookwell- Gullen Range 3H and Bannaby - Crookwell 61 330 kV lines returned to service at 1405 hrs 04/07/2024
Constraint set(s) revoked: N-BYCR_61_15M and N-CRGR_3H
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
NSW1-QLD1
VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Crookwell- Gullen Range 3H and Bannaby - Crookwell 61 330 kV lines - NSW region - 04/07/2024
A planned outage of Crookwell- Gullen Range 3H and Bannaby - Crookwell 61 330 kV lines in the NSW region was scheduled from 0800 hrs 03/07/2024 to 1700 hrs 04/07/2024.
The outage has been completed and Crookwell- Gullen Range 3H and Bannaby - Crookwell 61 330 kV lines returned to service at 1405 hrs 04/07/2024
Constraint set(s) revoked: N-BYCR_61_15M and N-CRGR_3H
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
NSW1-QLD1
VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
117289INTER-REGIONAL TRANSFER04/07/2024 11:04:20 AM
Inter-regional transfer limit variation - [outage element] - NSW region - 04/07/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Lismore - Dunoon 9U7 132 kV line - NSW region - 04/07/2024
A planned outage of Lismore - Dunoon 9U7 132 kV line in the NSW region was scheduled from 0732 hrs 02/07/2024 to 1700 hrs 19/07/2024.
The outage has been completed and Lismore - Dunoon 9U7 132 kV line returned to service at 1105 hrs 04/07/2024
Constraint set(s) revoked: N-LSDU_9U6
This constraint set contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Lismore - Dunoon 9U7 132 kV line - NSW region - 04/07/2024
A planned outage of Lismore - Dunoon 9U7 132 kV line in the NSW region was scheduled from 0732 hrs 02/07/2024 to 1700 hrs 19/07/2024.
The outage has been completed and Lismore - Dunoon 9U7 132 kV line returned to service at 1105 hrs 04/07/2024
Constraint set(s) revoked: N-LSDU_9U6
This constraint set contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
Manager NEM Real Time Operations
117286RESERVE NOTICE03/07/2024 08:10:15 PM
Cancellation of Actual (LOR1) condition in the NSW region - 03/07/2024
AEMO ELECTRICITY MARKET NOTICE
Cancellation of Actual (LOR1) condition in the NSW region - 03/07/2024
The Actual LOR1 Condition in the NSW Region advised in AEMO Electricity Market Notice No.117284 is cancelled at 2010 hrs 03/07/2024.
Manager NEM Real Time Operations
Cancellation of Actual (LOR1) condition in the NSW region - 03/07/2024
The Actual LOR1 Condition in the NSW Region advised in AEMO Electricity Market Notice No.117284 is cancelled at 2010 hrs 03/07/2024.
Manager NEM Real Time Operations
117284RESERVE NOTICE03/07/2024 05:42:34 PM
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 03/07/2024
AEMO ELECTRICITY MARKET NOTICE
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 03/07/2024
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 capacity reserve requirement is 1400 MW
The minimum capacity reserve available is 766 MW
Manager NEM Real Time Operations
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 03/07/2024
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 capacity reserve requirement is 1400 MW
The minimum capacity reserve available is 766 MW
Manager NEM Real Time Operations
117280RECLASSIFY CONTINGENCY03/07/2024 03:14:13 PM
Cancellation of Reclassification of a Non-Credible Contingency Event - SA region - 13/10/2023
AEMO ELECTRICITY MARKET NOTICE
Cancellation of Reclassification of a Non-Credible Contingency Event: South East No.1 SVC and No.2 SVC - SA region - 13/10/2023.
Refer AEMO Electricity Market Notice 110252
Based on advice from the participant, AEMO considers the trip of the following circuit at South East is unlikely to re-occur. Accordingly, its classification has reverted to a non-credible contingency event.
Region: SA
Equipment: South East No.1 SVC and No.2 SVC
Cancellation time: 1515 hrs 03/07/2024
Constraint set(s) revoked: Nil
Manager NEM Real Time Operations
Cancellation of Reclassification of a Non-Credible Contingency Event: South East No.1 SVC and No.2 SVC - SA region - 13/10/2023.
Refer AEMO Electricity Market Notice 110252
Based on advice from the participant, AEMO considers the trip of the following circuit at South East is unlikely to re-occur. Accordingly, its classification has reverted to a non-credible contingency event.
Region: SA
Equipment: South East No.1 SVC and No.2 SVC
Cancellation time: 1515 hrs 03/07/2024
Constraint set(s) revoked: Nil
Manager NEM Real Time Operations