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128285MARKET INTERVENTION23/07/2025 02:30:12 PM
Update - Foreseeable AEMO intervention in SA region
AEMO ELECTRICITY MARKET NOTICE
Update - Foreseeable AEMO intervention in SA region
Refer AEMO Electricity Market Notice 128284
AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the SA region from 0930 hrs 24/07/2025.
The foreseeable circumstance requiring the need for intervention is Voltage.
AEMO estimates that, in the absence of sufficient market response by 1600 hrs 23/07/2025, AEMO may need to intervene by issuing a direction.
Manager NEM Real Time Operations
Update - Foreseeable AEMO intervention in SA region
Refer AEMO Electricity Market Notice 128284
AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the SA region from 0930 hrs 24/07/2025.
The foreseeable circumstance requiring the need for intervention is Voltage.
AEMO estimates that, in the absence of sufficient market response by 1600 hrs 23/07/2025, AEMO may need to intervene by issuing a direction.
Manager NEM Real Time Operations
128284MARKET INTERVENTION23/07/2025 12:59:36 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 0930 hrs 24/07/2025.
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 0930 hrs 24/07/2025.
The foreseeable circumstance requiring the need for intervention is Voltage.
Manager NEM Real Time Operations
128277RESERVE NOTICE23/07/2025 02:10:12 AM
STPASA - Cancellation of the Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region on 25/07/2025
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR2 condition in the SA region advised in AEMO Electricity Market Notice No. 128259 is cancelled at 0200 hrs 23/07/2025.
Manager NEM Real Time Operations
The Forecast LOR2 condition in the SA region advised in AEMO Electricity Market Notice No. 128259 is cancelled at 0200 hrs 23/07/2025.
Manager NEM Real Time Operations
128259RESERVE NOTICE22/07/2025 04:34:09 PM
STPASA - Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region on 25/07/2025
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 periods:
1. From 0800 hrs to 1000 hrs 25/07/2025.
The forecast capacity reserve requirement is 830 MW.
The minimum capacity reserve available is 790 MW.
2. From 1030 hrs to 1130 hrs 25/07/2025.
The forecast capacity reserve requirement is 846 MW.
The minimum capacity reserve available is 798 MW.
3. From 1300 hrs to 1330 hrs 25/07/2025.
The forecast capacity reserve requirement is 842 MW.
The minimum capacity reserve available is 837 MW.
4. From 1400 hrs to 1530 hrs 25/07/2025.
The forecast capacity reserve requirement is 839 MW.
The minimum capacity reserve available is 804 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.
AEMO 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 periods:
1. From 0800 hrs to 1000 hrs 25/07/2025.
The forecast capacity reserve requirement is 830 MW.
The minimum capacity reserve available is 790 MW.
2. From 1030 hrs to 1130 hrs 25/07/2025.
The forecast capacity reserve requirement is 846 MW.
The minimum capacity reserve available is 798 MW.
3. From 1300 hrs to 1330 hrs 25/07/2025.
The forecast capacity reserve requirement is 842 MW.
The minimum capacity reserve available is 837 MW.
4. From 1400 hrs to 1530 hrs 25/07/2025.
The forecast capacity reserve requirement is 839 MW.
The minimum capacity reserve available is 804 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.
AEMO Operations
128213MARKET SYSTEMS21/07/2025 05:08:02 PM
CHG0104553 - Pre-Prod eMDM Maintenance
Change Number: CHG0104553
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: MDM - Meter Data Management_PreProd
Change Title: Pre-Prod eMDM Maintenance Release
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: MDM - Meter Data Management_PreProd
Change Title: Pre-Prod eMDM Maintenance Release
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
128211MARKET SYSTEMS21/07/2025 04:32:59 PM
The Gas B2B hub servers will be updated to support TLS (Transport Layer Security) 1.3 version. Also the legacy versions 1.0 and 1.1 will be disabled and not be supported going forward.
Participants are required to use TLS 1.2 as a minimum protocol to communicate with AEMO, failing to do so will impact the connectivity. An outage is not expected but, there may be some minor interruptions during the change period.
Participants are required to make sure the connectivity is intact post change implementation.
In case of any issues noticed, please reach out to AEMO Support Hub.
CHG0102957|PROD|Enable TLS 1.3 for Gas B2B Hub and disable TLS version 1.0/1.1
The Gas B2B hub servers will be updated to support TLS (Transport Layer Security) 1.3 version. Also the legacy versions 1.0 and 1.1 will be disabled and not be supported going forward.
Participants are required to use TLS 1.2 as a minimum protocol to communicate with AEMO, failing to do so will impact the connectivity. An outage is not expected but, there may be some minor interruptions during the change period.
Participants are required to make sure the connectivity is intact post change implementation.
In case of any issues noticed, please reach out to AEMO Support Hub.
128190INTER-REGIONAL TRANSFER19/07/2025 07:35:53 PM
Inter-regional transfer limit variation - Eraring 500kV - Kemps Creek 5A2 500kV Line - NSW region - 19/07/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Eraring500kV - Kemps Creek 5A2 500kV Line - NSW region - 19/07/2025
At 1910 hrs 19/07/2025 there was a short notice outage of Eraring 500kV - Kemps Creek 5A2 500kV Line .
The following constraint set(s) invoked at 1920 hrs 19/07/2025
N-ERKC_ONE
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,NSW1-QLD1,VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Eraring500kV - Kemps Creek 5A2 500kV Line - NSW region - 19/07/2025
At 1910 hrs 19/07/2025 there was a short notice outage of Eraring 500kV - Kemps Creek 5A2 500kV Line .
The following constraint set(s) invoked at 1920 hrs 19/07/2025
N-ERKC_ONE
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,NSW1-QLD1,VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
128176INTER-REGIONAL TRANSFER19/07/2025 03:25:24 PM
Inter-regional transfer limit variation - Bulgana-Horsham 220kV LINE - VIC region - 19/07/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Bulgana-Horsham 220kV LINE - VIC region - 19/07/2025
A planned outage of Bulgana-Horsham 220kV LINE in the VIC region was scheduled from 0700 hrs 19/07/2025 to 1730 hrs 19/07/2025.
The outage has been completed and Bulgana-Horsham 220kV LINE returned to service at 1525 hrs 19/07/2025
Constraint set(s) revoked: V-BUHO
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Bulgana-Horsham 220kV LINE - VIC region - 19/07/2025
A planned outage of Bulgana-Horsham 220kV LINE in the VIC region was scheduled from 0700 hrs 19/07/2025 to 1730 hrs 19/07/2025.
The outage has been completed and Bulgana-Horsham 220kV LINE returned to service at 1525 hrs 19/07/2025
Constraint set(s) revoked: V-BUHO
Manager NEM Real Time Operations
128174MARKET INTERVENTION19/07/2025 02:31:53 PM
Cancellation - AEMO Intervention Event - SA region 18/07/2025
AEMO ELECTRICITY MARKET NOTICE
Cancellation - AEMO Intervention Event - SA region 18/07/2025
Refer to Market Notice 128167
The AEMO Intervention Event and all associated directions are cancelled from 1430 hrs on 19/07/2025.
Manager NEM Real Time Operations
Cancellation - AEMO Intervention Event - SA region 18/07/2025
Refer to Market Notice 128167
The AEMO Intervention Event and all associated directions are cancelled from 1430 hrs on 19/07/2025.
Manager NEM Real Time Operations