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127793RESERVE NOTICE24/06/2025 03:11:48 PM
STPASA - Update of the Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region on 01/07/2025
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 127741 has been updated at 1400 hrs 24/06/2025 to the following:
1. From 1100 hrs to 1130 hrs 01/07/2025.
The forecast capacity reserve requirement is 404 MW.
The minimum capacity reserve available is 377 MW.
2. From 1600 hrs to 1630 hrs 01/07/2025.
The forecast capacity reserve requirement is 410 MW.
The minimum capacity reserve available is 301 MW.
AEMO Operations
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 127741 has been updated at 1400 hrs 24/06/2025 to the following:
1. From 1100 hrs to 1130 hrs 01/07/2025.
The forecast capacity reserve requirement is 404 MW.
The minimum capacity reserve available is 377 MW.
2. From 1600 hrs to 1630 hrs 01/07/2025.
The forecast capacity reserve requirement is 410 MW.
The minimum capacity reserve available is 301 MW.
AEMO Operations
127790RECLASSIFY CONTINGENCY24/06/2025 02:49:25 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: 24/06/2025 14:49
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 127783
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: 24/06/2025 14:49
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 127783
Auto-generated on behalf of Manager NEM Real Time Operations
127789RESERVE NOTICE24/06/2025 03:11:38 PM
STPASA - Update of the Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region on 30/06/2025
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 127739 has been updated at 1400 hrs 24/06/2025 to the following:
1. From 0600 hrs to 0700 hrs 30/06/2025.
The forecast capacity reserve requirement is 600 MW.
The minimum capacity reserve available is 473 MW.
2. From 1030 hrs to 1100 hrs 30/06/2025.
The forecast capacity reserve requirement is 376 MW.
The minimum capacity reserve available is 268 MW.
3. From 1630 hrs to 1700 hrs 30/06/2025.
The forecast capacity reserve requirement is 397 MW.
The minimum capacity reserve available is 200 MW.
AEMO Operations
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 127739 has been updated at 1400 hrs 24/06/2025 to the following:
1. From 0600 hrs to 0700 hrs 30/06/2025.
The forecast capacity reserve requirement is 600 MW.
The minimum capacity reserve available is 473 MW.
2. From 1030 hrs to 1100 hrs 30/06/2025.
The forecast capacity reserve requirement is 376 MW.
The minimum capacity reserve available is 268 MW.
3. From 1630 hrs to 1700 hrs 30/06/2025.
The forecast capacity reserve requirement is 397 MW.
The minimum capacity reserve available is 200 MW.
AEMO Operations
127787RESERVE NOTICE24/06/2025 03:11:28 PM
STPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the NSW Region on 30/06/2025
AEMO ELECTRICITY MARKET NOTICE
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the NSW region for the following periods:
1. From 0630 hrs to 0830 hrs 30/06/2025.
The forecast capacity reserve requirement is 1558 MW.
The minimum capacity reserve available is 1123 MW.
2. From 1630 hrs to 2300 hrs 30/06/2025.
The forecast capacity reserve requirement is 1558 MW.
The minimum capacity reserve available is 1073 MW.
AEMO Operations
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the NSW region for the following periods:
1. From 0630 hrs to 0830 hrs 30/06/2025.
The forecast capacity reserve requirement is 1558 MW.
The minimum capacity reserve available is 1123 MW.
2. From 1630 hrs to 2300 hrs 30/06/2025.
The forecast capacity reserve requirement is 1558 MW.
The minimum capacity reserve available is 1073 MW.
AEMO Operations
127786RECLASSIFY CONTINGENCY24/06/2025 02:44:26 PM
Cancellation of a Non-Credible Contingency Event: Sheffield - George Town 1 & 2 220kV 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: Sheffield - George Town 1 & 2 220kV and
Cancellation time: 24/06/2025 14:44
Constraint set(s) revoked:
T-GTSH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1
Refer AEMO Electricity Market Notice 127771
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: Sheffield - George Town 1 & 2 220kV and
Cancellation time: 24/06/2025 14:44
Constraint set(s) revoked:
T-GTSH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1
Refer AEMO Electricity Market Notice 127771
Auto-generated on behalf of Manager NEM Real Time Operations
127785RESERVE NOTICE24/06/2025 03:11:17 PM
STPASA - Update of the Forecast Lack Of Reserve Level 1 (LOR1) in the NSW Region on 26/06/2025
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 127738 has been updated at 1400 hrs 24/06/2025 to the following:
1. From 0600 hrs to 0800 hrs 26/06/2025.
The forecast capacity reserve requirement is 1748 MW.
The minimum capacity reserve available is 1714 MW.
2. From 1630 hrs to 2300 hrs 26/06/2025.
The forecast capacity reserve requirement is 1859 MW.
The minimum capacity reserve available is 1636 MW.
AEMO Operations
The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 127738 has been updated at 1400 hrs 24/06/2025 to the following:
1. From 0600 hrs to 0800 hrs 26/06/2025.
The forecast capacity reserve requirement is 1748 MW.
The minimum capacity reserve available is 1714 MW.
2. From 1630 hrs to 2300 hrs 26/06/2025.
The forecast capacity reserve requirement is 1859 MW.
The minimum capacity reserve available is 1636 MW.
AEMO Operations
127784RECLASSIFY CONTINGENCY24/06/2025 01:59:20 PM
Reclassification of a Non-Credible Contingency Event: Penola West - South East 1 132kV line and Kincraig - Penola West 1 132kV line in SA1 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: SA1
Lines: Penola West - South East 1 132kV and Kincraig - Penola West 1 132kV
Duration: 24/06/2025 13:59 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: SA1
Lines: Penola West - South East 1 132kV and Kincraig - Penola West 1 132kV
Duration: 24/06/2025 13:59 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
127783RECLASSIFY CONTINGENCY24/06/2025 01:45:25 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: 24/06/2025 13:45 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: 24/06/2025 13:45 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
127779RECLASSIFY CONTINGENCY24/06/2025 01:06:27 PM
Reclassification of non-credible contingency event due to existence of widespread abnormal condition/s - 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 1305 hrs 24/06/2025.
Constraint set invoked:
I-VS_250
Duration: 1305 hrs 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 1305 hrs 24/06/2025.
Constraint set invoked:
I-VS_250
Duration: 1305 hrs 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