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128153RECLASSIFY CONTINGENCY17/07/2025 05:07:13 PM
Cancellation - Reclassification of a non-credible contingency event to credible event - SA region - 15/08/2023
AEMO ELECTRICITY MARKET NOTICE.
Cancellation - Reclassification of a non-credible contingency event to credible event - SA region - 15/08/2023
Refer AEMO ELECTRICITY MARKET NOTICES 109321,109323
Based on advise received from TNSP, AEMO is satisfied that this non credible event is unlikely to re-occur.
AEMO therefore cancels this reclassification as a credible contingency event.
Region: SA
Elements: Blyth West - Munno Para 275 kV Line tripping at Blyth West end only
Cancelled: 17/07/2025 1630 hrs
Constraint(s) invoked: Nil
Manager NEM Real Time Operations
Cancellation - Reclassification of a non-credible contingency event to credible event - SA region - 15/08/2023
Refer AEMO ELECTRICITY MARKET NOTICES 109321,109323
Based on advise received from TNSP, AEMO is satisfied that this non credible event is unlikely to re-occur.
AEMO therefore cancels this reclassification as a credible contingency event.
Region: SA
Elements: Blyth West - Munno Para 275 kV Line tripping at Blyth West end only
Cancelled: 17/07/2025 1630 hrs
Constraint(s) invoked: Nil
Manager NEM Real Time Operations
128152RECLASSIFY CONTINGENCY17/07/2025 04:09:50 PM
Cancellation of a Non-Credible Contingency Event: Yallourn - Rowville 7 220 kV line and Yallourn - Rowville 8 220 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: Yallourn - Rowville 7 220 kV and Yallourn - Rowville 8 220 kV
Cancellation time: 17/07/2025 16:09
Constraint set(s) revoked:
V-ROYP78_R_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Refer AEMO Electricity Market Notice 128150
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: Yallourn - Rowville 7 220 kV and Yallourn - Rowville 8 220 kV
Cancellation time: 17/07/2025 16:09
Constraint set(s) revoked:
V-ROYP78_R_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Refer AEMO Electricity Market Notice 128150
Auto-generated on behalf of Manager NEM Real Time Operations
128150RECLASSIFY CONTINGENCY17/07/2025 03:07:35 PM
Reclassification of a Non-Credible Contingency Event: Yallourn - Rowville 7 220 kV line and Yallourn - Rowville 8 220 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: Yallourn - Rowville 7 220 kV and Yallourn - Rowville 8 220 kV
Duration: 17/07/2025 15:07 until further notice
Constraint set(s) invoked:
V-ROYP78_R_N-2 Constraint set contains the following interconnector(s) on the left hand side:
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: Yallourn - Rowville 7 220 kV and Yallourn - Rowville 8 220 kV
Duration: 17/07/2025 15:07 until further notice
Constraint set(s) invoked:
V-ROYP78_R_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
128137RESERVE NOTICE16/07/2025 07:24:19 PM
Cancellation of the Actual Lack Of Reserve Level 1 (LOR1) condition in the NSW Region on 16/07/2025
AEMO ELECTRICITY MARKET NOTICE
The Actual LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 128136 is cancelled at 1915 hrs 16/07/2025.
Manager NEM Real Time Operations
The Actual LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 128136 is cancelled at 1915 hrs 16/07/2025.
Manager NEM Real Time Operations
128136RESERVE NOTICE16/07/2025 06:10:16 PM
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 16/07/2025
AEMO ELECTRICITY MARKET NOTICE
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 16/07/2025
An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the NSW region from 1800 hrs.
The Actual LOR1 condition is forecast to exist until 1900 hrs
The capacity reserve requirement is 1400 MW
The minimum capacity reserve available is 1257 MW
Manager NEM Real Time Operations
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 16/07/2025
An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the NSW region from 1800 hrs.
The Actual LOR1 condition is forecast to exist until 1900 hrs
The capacity reserve requirement is 1400 MW
The minimum capacity reserve available is 1257 MW
Manager NEM Real Time Operations
128132RESERVE NOTICE15/07/2025 07:11:28 PM
Cancellation of Actual (LOR1) condition in the NSW region - 15/07/2025
AEMO ELECTRICITY MARKET NOTICE
Cancellation of Actual (LOR1) condition in the NSW region - 15/07/2025
The Actual LOR1 Condition in the NSW Region advised in AEMO Electricity Market Notice No.128131 is cancelled at 1908 hrs 15/07/2025.
Manager NEM Real Time Operations
Cancellation of Actual (LOR1) condition in the NSW region - 15/07/2025
The Actual LOR1 Condition in the NSW Region advised in AEMO Electricity Market Notice No.128131 is cancelled at 1908 hrs 15/07/2025.
Manager NEM Real Time Operations
128131RESERVE NOTICE15/07/2025 05:42:16 PM
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 15/07/2025
AEMO ELECTRICITY MARKET NOTICE
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 15/07/2025
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 1900 hrs
The capacity reserve requirement is 1400 MW
The minimum capacity reserve available is 1025 MW
Manager NEM Real Time Operations
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 15/07/2025
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 1900 hrs
The capacity reserve requirement is 1400 MW
The minimum capacity reserve available is 1025 MW
Manager NEM Real Time Operations
128128GENERAL NOTICE14/07/2025 01:43:14 PM
Network Augmentation Commissioned - NSW Region - 14/07/2025
AEMO ELECTRICITY MARKET NOTICE
Network Augmentation Commissioned - NSW Region - 14/07/2025
Commissioned:
Buronga No. 1 330 kV/330 kV phase shifting transformer
Buronga No. 2 330 kV/330 kV phase shifting transformer
Buronga No. 3 330 kV/330 kV phase shifting transformer
Buronga No. 4 330 kV/330 kV phase shifting transformer
Manager NEM Real Time Operations
Network Augmentation Commissioned - NSW Region - 14/07/2025
Commissioned:
Buronga No. 1 330 kV/330 kV phase shifting transformer
Buronga No. 2 330 kV/330 kV phase shifting transformer
Buronga No. 3 330 kV/330 kV phase shifting transformer
Buronga No. 4 330 kV/330 kV phase shifting transformer
Manager NEM Real Time Operations
128127RECLASSIFY CONTINGENCY14/07/2025 05:54:50 AM
Cancellation of a Non-Credible Contingency Event: Tungatinah-Lake Echo-Waddamana 1 110kV line and Tungatinah-Waddamana 2 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: Tungatinah-Lake Echo-Waddamana 1 110kV and Tungatinah-Waddamana 2 110kV
Cancellation time: 14/07/2025 05:54
Constraint set(s) revoked:
T-TUWA12_110_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Refer AEMO Electricity Market Notice 128126
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: Tungatinah-Lake Echo-Waddamana 1 110kV and Tungatinah-Waddamana 2 110kV
Cancellation time: 14/07/2025 05:54
Constraint set(s) revoked:
T-TUWA12_110_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Refer AEMO Electricity Market Notice 128126
Auto-generated on behalf of Manager NEM Real Time Operations