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126471MARKET INTERVENTION10/04/2025 03:21:04 PM
Cancellation - Possible intervention to manage power system security in South Australia (SA) region 11/04/2025
AEMO ELECTRICITY MARKET NOTICE
Cancellation - Possible intervention to manage power system security in South Australia (SA) region 11/04/2025
Refer Market Notice 126468
AEMO no longer foresees a possible requirement for intervention to manage power system security in SA region. The advice of possible intervention is cancelled from 1520 hrs 10/04/2025.
Manager NEM Real Time Operations
Cancellation - Possible intervention to manage power system security in South Australia (SA) region 11/04/2025
Refer Market Notice 126468
AEMO no longer foresees a possible requirement for intervention to manage power system security in SA region. The advice of possible intervention is cancelled from 1520 hrs 10/04/2025.
Manager NEM Real Time Operations
126468MARKET INTERVENTION10/04/2025 01:01:05 PM
Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region
AEMO ELECTRICITY MARKET NOTICE
Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region
AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the SA region from 0900 hrs 11/04/2025.
The foreseeable circumstance requiring the need for intervention is Voltage.
Manager NEM Real Time Operations
Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region
AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the SA region from 0900 hrs 11/04/2025.
The foreseeable circumstance requiring the need for intervention is Voltage.
Manager NEM Real Time Operations
126466GENERAL NOTICE10/04/2025 11:12:18 AM
Release of PEC-1 and combined V-SA limits - 11 April 2025
AEMO ELECTRICITY MARKET NOTICE
Refer to market notice 123956
AEMO, Transgrid and Electranet have reviewed the test results following the PEC Stage 1 testing on 31st January 2025. Hold points 4 and 5 can now be released.
The following limits will be released as of 1000hrs 11th April 2025:
- PEC-1 - 150 MW (both directions)
- Heywood + PEC1 - 750 MW from Vic to SA and 700 MW from SA to Vic
- The existing Heywood limits of 600 and 550 MW are not being changed.
With the release of these limits AEMO will be looking for testing opportunities for increases to Heywood as per the test plan: https://aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2023/project-energyconnect-stage-1-and-hic-capacity-release/pec-stage-1-and-hic---final-test-program.pdf?la=en.
Ben Blake
AEMO Operations
Refer to market notice 123956
AEMO, Transgrid and Electranet have reviewed the test results following the PEC Stage 1 testing on 31st January 2025. Hold points 4 and 5 can now be released.
The following limits will be released as of 1000hrs 11th April 2025:
- PEC-1 - 150 MW (both directions)
- Heywood + PEC1 - 750 MW from Vic to SA and 700 MW from SA to Vic
- The existing Heywood limits of 600 and 550 MW are not being changed.
With the release of these limits AEMO will be looking for testing opportunities for increases to Heywood as per the test plan: https://aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2023/project-energyconnect-stage-1-and-hic-capacity-release/pec-stage-1-and-hic---final-test-program.pdf?la=en.
Ben Blake
AEMO Operations
126465INTER-REGIONAL TRANSFER10/04/2025 10:00:31 AM
Update - Inter-regional transfer limit variation - APD - Heywood - Mortlake 500 kV line - VIC region - 10/04/2025
AEMO ELECTRICITY MARKET NOTICE
Update - Inter-regional transfer limit variation - APD - Heywood - Mortlake 500 kV line - VIC region - 10/04/2025
Refer to Market Notice 126464.
The cause of the unplanned outage of APD - Heywood - Mortlake 500 kV line in the VIC region has been identified and resolved. The outage has been completed and the APD - Heywood - Mortlake 500 kV line returned to service at 0948 hrs 10/04/2025
Constraint set(s) revoked: V-HYMO
Manager NEM Real Time Operations
Update - Inter-regional transfer limit variation - APD - Heywood - Mortlake 500 kV line - VIC region - 10/04/2025
Refer to Market Notice 126464.
The cause of the unplanned outage of APD - Heywood - Mortlake 500 kV line in the VIC region has been identified and resolved. The outage has been completed and the APD - Heywood - Mortlake 500 kV line returned to service at 0948 hrs 10/04/2025
Constraint set(s) revoked: V-HYMO
Manager NEM Real Time Operations
126464INTER-REGIONAL TRANSFER10/04/2025 08:49:30 AM
Inter-regional transfer limit variation - APD - Heywood - Mortlake 500 kV line - VIC region - 10/04/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - APD - Heywood - Mortlake 500 kV line - VIC region - 10/04/2025
At 0825 hrs 10/04/2025 there was an unplanned outage of the APD - Heywood - Mortlake 500 kV line.
The following constraint set(s) invoked at 0835 hrs 10/04/2025
V-HYMO
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA,T-V-MNSP1,V-S-MNSP1,VIC1-NSW1,NSW1-QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - APD - Heywood - Mortlake 500 kV line - VIC region - 10/04/2025
At 0825 hrs 10/04/2025 there was an unplanned outage of the APD - Heywood - Mortlake 500 kV line.
The following constraint set(s) invoked at 0835 hrs 10/04/2025
V-HYMO
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA,T-V-MNSP1,V-S-MNSP1,VIC1-NSW1,NSW1-QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
126442MARKET INTERVENTION09/04/2025 02:42:04 PM
Cancellation - Possible intervention to manage power system security in South Australia (SA) region 10/04/2025
AEMO ELECTRICITY MARKET NOTICE
Cancellation - Possible intervention to manage power system security in South Australia (SA) region 10/04/2025
Refer Market Notice 126440
AEMO no longer foresees a possible requirement for intervention to manage power system security in SA region. The advice of possible intervention is cancelled from 1430 hrs 09/04/2025.
Manager NEM Real Time Operations
Cancellation - Possible intervention to manage power system security in South Australia (SA) region 10/04/2025
Refer Market Notice 126440
AEMO no longer foresees a possible requirement for intervention to manage power system security in SA region. The advice of possible intervention is cancelled from 1430 hrs 09/04/2025.
Manager NEM Real Time Operations
126440MARKET INTERVENTION09/04/2025 01:04:53 PM
Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region
AEMO ELECTRICITY MARKET NOTICE
Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region
AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the SA region from 0800 hrs 10/04/2025.
The foreseeable circumstance requiring the need for intervention is Voltage.
Manager NEM Real Time Operations
Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region
AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the SA region from 0800 hrs 10/04/2025.
The foreseeable circumstance requiring the need for intervention is Voltage.
Manager NEM Real Time Operations
126427MARKET INTERVENTION07/04/2025 05:57:01 PM
Cancellation - Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region
AEMO ELECTRICITY MARKET NOTICE
Cancellation - Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region
The foreseeable circumstance identified in Market Notice 126418 is cancelled.
Manager NEM Real Time Operations
Cancellation - Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region
The foreseeable circumstance identified in Market Notice 126418 is cancelled.
Manager NEM Real Time Operations
126418MARKET INTERVENTION07/04/2025 12:38:10 PM
Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region
AEMO ELECTRICITY MARKET NOTICE
Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region
AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the SA region from 0900 hrs 08/04/2025.
The foreseeable circumstance requiring the need for intervention is Voltage.
Manager NEM Real Time Operations
Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region
AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the SA region from 0900 hrs 08/04/2025.
The foreseeable circumstance requiring the need for intervention is Voltage.
Manager NEM Real Time Operations