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117374INTER-REGIONAL TRANSFER19/07/2024 06:01:53 PM
Inter-regional transfer limit variation - Heywood interconnector - SA and Vic regions - 19/07/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Heywood interconnector - SA and Vic regions- 19/07/2024
Refer to reclassification Market notice 117373
The following constraint set(s) invoked at 1740 hrs 19/07/2024
I-SV_250 , I-VS_250
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Heywood interconnector - SA and Vic regions- 19/07/2024
Refer to reclassification Market notice 117373
The following constraint set(s) invoked at 1740 hrs 19/07/2024
I-SV_250 , I-VS_250
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA
Manager NEM Real Time Operations
117373RECLASSIFY CONTINGENCY19/07/2024 05:36:20 PM
Reclassification of non-credible contingency event due to existence of widespread abnormal conditions - South Australia and Victoria 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 widespread severe weather in the South Australia and Victoria regions.
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(s) to maintain power system security at 1740 hrs 19/07/2024.
Constraint set(s) invoked:
I-SV_250
I-VS_250
Duration: 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 widespread severe weather in the South Australia and Victoria regions.
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(s) to maintain power system security at 1740 hrs 19/07/2024.
Constraint set(s) invoked:
I-SV_250
I-VS_250
Duration: 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
117372INTER-REGIONAL TRANSFER19/07/2024 04:41:55 PM
Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region)
AEMO ELECTRICITY MARKET NOTICE
Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region)
AEMO has been notified that the controls to vary Directlink output are unavailable until further notice.
Constraint set I-CTRL_ISSUE_TE invoked from 1640 hrs.
The constraint set contains equations with the following interconnector on the LHS:
N-Q-MNSP1
Manager NEM Real Time Operations
Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region)
AEMO has been notified that the controls to vary Directlink output are unavailable until further notice.
Constraint set I-CTRL_ISSUE_TE invoked from 1640 hrs.
The constraint set contains equations with the following interconnector on the LHS:
N-Q-MNSP1
Manager NEM Real Time Operations
117371INTER-REGIONAL TRANSFER19/07/2024 04:20:09 PM
Cancellation Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region).
AEMO ELECTRICITY MARKET NOTICE
Cancellation Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region).
Refer AEMO Electricity Market Notice 117368
AEMO has been notified that the controls to vary Directlink output are now available.
Constraint set I-CTRL_ISSUE_TE revoked at 1620 hrs.
Manager NEM Real Time Operations
Cancellation Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region).
Refer AEMO Electricity Market Notice 117368
AEMO has been notified that the controls to vary Directlink output are now available.
Constraint set I-CTRL_ISSUE_TE revoked at 1620 hrs.
Manager NEM Real Time Operations
117368INTER-REGIONAL TRANSFER19/07/2024 03:24:41 PM
Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region)
AEMO ELECTRICITY MARKET NOTICE
Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region)
AEMO has been notified that the controls to vary Directlink output are unavailable until further notice.
Constraint set I-CTRL_ISSUE_TE invoked from 1530 hrs.
The constraint set contains equations with the following interconnector on the LHS:
N-Q-MNSP1
Manager NEM Real Time Operations
Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region)
AEMO has been notified that the controls to vary Directlink output are unavailable until further notice.
Constraint set I-CTRL_ISSUE_TE invoked from 1530 hrs.
The constraint set contains equations with the following interconnector on the LHS:
N-Q-MNSP1
Manager NEM Real Time Operations
117363RECLASSIFY CONTINGENCY18/07/2024 05:31:28 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: 18/07/2024 17:30 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: 18/07/2024 17:30 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations
117358RECLASSIFY CONTINGENCY18/07/2024 11:31:57 AM
Reclassification of a Non-Credible Contingency Event: Para-Templers West and Magill-Torrens Island A 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: Para-Templers West and Magill-Torrens Island A 275kV lines
Duration: 18/07/2024 11:30 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: Para-Templers West and Magill-Torrens Island A 275kV lines
Duration: 18/07/2024 11:30 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations
117356GENERAL NOTICE18/07/2024 09:06:38 PM
Network Augmentation Commissioned - VIC Region - 18/07/2024
AEMO ELECTRICITY MARKET NOTICE
Network Augmentation Commissioned - VIC Region - 18/07/2024
At 2044 hrs 18,07/2024, Cressy Terminal Station has been cut into the existing Moorabool - Haunted Gully No.1 500 kV line to form the following circuits:
Cressy - Haunted Gully No 1 500 kV line
Cressy - Moorabool No 1 500 kV line
Manager NEM Real Time Operations
Network Augmentation Commissioned - VIC Region - 18/07/2024
At 2044 hrs 18,07/2024, Cressy Terminal Station has been cut into the existing Moorabool - Haunted Gully No.1 500 kV line to form the following circuits:
Cressy - Haunted Gully No 1 500 kV line
Cressy - Moorabool No 1 500 kV line
Manager NEM Real Time Operations
117355INTER-REGIONAL TRANSFER16/07/2024 04:09:23 PM
Inter-regional transfer limit variation -Tungkillo-Tailem_Bnd 1 275kV LINE - SA region - 16/07/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Tungkillo-Tailem_Bnd 1 275kV LINE - SA region - 16/07/2024
A planned outage of Tungkillo-Tailem_Bnd 1 275kV LINE in the SA region was scheduled from 0845 hrs 16/07/2024 to 1630 hrs 16/07/2024.
The outage has been completed and Tungkillo-Tailem_Bnd 1 275kV LINE returned to service at 1255 hrs 16/07/2024
Constraint set(s) revoked: S-TBTU
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Tungkillo-Tailem_Bnd 1 275kV LINE - SA region - 16/07/2024
A planned outage of Tungkillo-Tailem_Bnd 1 275kV LINE in the SA region was scheduled from 0845 hrs 16/07/2024 to 1630 hrs 16/07/2024.
The outage has been completed and Tungkillo-Tailem_Bnd 1 275kV LINE returned to service at 1255 hrs 16/07/2024
Constraint set(s) revoked: S-TBTU
Manager NEM Real Time Operations