Filter by:
Filter by category
Filter by Date
From
To
128085RECLASSIFY CONTINGENCY09/07/2025 10:41:03 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: 2040 hrs 09/07/2025
Constraint set(s) revoked: Nil
Refer AEMO Electricity Market Notice 127997
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: 2040 hrs 09/07/2025
Constraint set(s) revoked: Nil
Refer AEMO Electricity Market Notice 127997
Manager NEM Real Time Operations
128084RECLASSIFY CONTINGENCY09/07/2025 10:36:43 PM
Cancellation: Reclassification of non-credible contingency event due to existence of widespread abnormal condition/s - SA region.
AEMO ELECTRICITY MARKET NOTICE.
AEMO considers the occurrence of a non-credible contingency event due to the widespread abnormal conditions advised in AEMO Electricity Market Notice 128068 is no longer reasonably possible and accordingly its classification has reverted to non-credible.
Cancellation time: 2240 hrs 09/07/2025
Constraint set(s) revoked: I-VS_250
Manager NEM Real Time Operations
AEMO considers the occurrence of a non-credible contingency event due to the widespread abnormal conditions advised in AEMO Electricity Market Notice 128068 is no longer reasonably possible and accordingly its classification has reverted to non-credible.
Cancellation time: 2240 hrs 09/07/2025
Constraint set(s) revoked: I-VS_250
Manager NEM Real Time Operations
128083RECLASSIFY CONTINGENCY09/07/2025 09:09:30 PM
Cancellation 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
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: SA1
Lines: Penola West - South East 1 132kV and Kincraig - Penola West 1 132kV
Cancellation time: 09/07/2025 21:09
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 128069
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: SA1
Lines: Penola West - South East 1 132kV and Kincraig - Penola West 1 132kV
Cancellation time: 09/07/2025 21:09
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 128069
Auto-generated on behalf of Manager NEM Real Time Operations
128069RECLASSIFY CONTINGENCY09/07/2025 08:07:15 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: 09/07/2025 20:07 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: 09/07/2025 20:07 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
128068RECLASSIFY CONTINGENCY09/07/2025 07:27:45 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(s) to maintain power system security at 1925 hrs 09/07/2025.
Constraint set(s) invoked:
I-VS_250
Duration: 1925 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(s) to maintain power system security at 1925 hrs 09/07/2025.
Constraint set(s) invoked:
I-VS_250
Duration: 1925 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
128064RECLASSIFY CONTINGENCY09/07/2025 05:16:21 PM
Cancellation of the 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.
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: Para-Templers West and Magill-Torrens Island A 275kV lines
Cancellation time: 1710 hrs 09/07/2025
Constraint set(s) revoked: Nil
Refer AEMO Electricity Market Notice 127998
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: Para-Templers West and Magill-Torrens Island A 275kV lines
Cancellation time: 1710 hrs 09/07/2025
Constraint set(s) revoked: Nil
Refer AEMO Electricity Market Notice 127998
Manager NEM Real Time Operations
128063NON-CONFORMANCE09/07/2025 04:30:16 PM
NON-CONFORMANCE Region VIC1 Wednesday, 9 July 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE VIC1 Region Wednesday, 9 July 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: MOKOSF1
Duration: 09/07/2025 12:55 to 09/07/2025 16:30
Amount: 15 MW
Constraint: NC-V_MOKOSF1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE VIC1 Region Wednesday, 9 July 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: MOKOSF1
Duration: 09/07/2025 12:55 to 09/07/2025 16:30
Amount: 15 MW
Constraint: NC-V_MOKOSF1
Auto-generated on behalf of Manager NEM Real Time Operations
128033RESERVE NOTICE09/07/2025 12:23:25 AM
STPASA - Cancellation of the Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region on 11/07/2025
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR2 condition in the SA region advised in AEMO Electricity Market Notice No. 128031 is cancelled at 0025 hrs 09/07/2025.
Manager NEM Real Time Operations
The Forecast LOR2 condition in the SA region advised in AEMO Electricity Market Notice No. 128031 is cancelled at 0025 hrs 09/07/2025.
Manager NEM Real Time Operations
128031RESERVE NOTICE08/07/2025 07:49:17 PM
STPASA - Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region on 11/07/2025
AEMO ELECTRICITY MARKET NOTICE
AEMO declares a Forecast LOR2 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following period:
[1.] From 1000 hrs 11/07/2025 to 1030 hrs 11/07/2025.
The forecast capacity reserve requirement is 833 MW.
The minimum capacity reserve available is 819 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time at which it would need to intervene through an AEMO intervention event.
Manager NEM Real Time Operations
AEMO declares a Forecast LOR2 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following period:
[1.] From 1000 hrs 11/07/2025 to 1030 hrs 11/07/2025.
The forecast capacity reserve requirement is 833 MW.
The minimum capacity reserve available is 819 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time at which it would need to intervene through an AEMO intervention event.
Manager NEM Real Time Operations