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128448INTER-REGIONAL TRANSFER05/08/2025 08:43:31 PM
Inter-regional transfer limit variation - South East 275 kV No. 2 SVC - SA region - 05/08/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - South East 275 kV No. 2 SVC - SA region - 05/08/2025
At 2036 hrs 05/08/2025 there was an unplanned outage of South East 275 kV No. 2 SVC.
The following constraint set(s) invoked at 2045 hrs 05/08/2025
S-SE_VC1
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - South East 275 kV No. 2 SVC - SA region - 05/08/2025
At 2036 hrs 05/08/2025 there was an unplanned outage of South East 275 kV No. 2 SVC.
The following constraint set(s) invoked at 2045 hrs 05/08/2025
S-SE_VC1
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
128434SETTLEMENTS RESIDUE04/08/2025 08:00:21 PM
[EventId:202508042000_NRM_VIC1_SA1_stopped] NEGRES CONSTRAINT NRM_VIC1_SA1 ceased operating from 04 August 2025 20:00
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 2000 hrs on 4 August 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 4 August 2025.
Refer to market notice: 128433
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the VIC to SA directional interconnector.
The negative residue constraint NRM_VIC1_SA1 ceased operating at 2000 hrs on 4 August 2025.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 2000 hrs on 4 August 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 4 August 2025.
Refer to market notice: 128433
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the VIC to SA directional interconnector.
The negative residue constraint NRM_VIC1_SA1 ceased operating at 2000 hrs on 4 August 2025.
This is an AEMO autogenerated Market Notice.
128433SETTLEMENTS RESIDUE04/08/2025 07:00:29 PM
[EventId:202508041900_NRM_VIC1_SA1_started] NEGRES CONSTRAINT NRM_VIC1_SA1 started operating from 04 August 2025 19:00
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1900 hrs on 4 August 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 4 August 2025.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the VIC to SA directional interconnector.
The negative residue constraint set NRM_VIC1_SA1 commenced operating from 1900 hrs on 4 August 2025.
This constraint set contains an equation with the following interconnectors on the LHS:
V-S-MNSP1
V-SA
The RHS of the constraint equation may be adjusted to manage residues.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1900 hrs on 4 August 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 4 August 2025.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the VIC to SA directional interconnector.
The negative residue constraint set NRM_VIC1_SA1 commenced operating from 1900 hrs on 4 August 2025.
This constraint set contains an equation with the following interconnectors on the LHS:
V-S-MNSP1
V-SA
The RHS of the constraint equation may be adjusted to manage residues.
This is an AEMO autogenerated Market Notice.
128430RESERVE NOTICE04/08/2025 02:40:03 PM
STPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the TAS Region on 07/08/2025
AEMO ELECTRICITY MARKET NOTICE
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the TAS region for the following period:
From 0730 hrs to 0830 hrs 07/08/2025.
The forecast capacity reserve requirement is 582 MW.
The minimum capacity reserve available is 549 MW.
AEMO Operations
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the TAS region for the following period:
From 0730 hrs to 0830 hrs 07/08/2025.
The forecast capacity reserve requirement is 582 MW.
The minimum capacity reserve available is 549 MW.
AEMO Operations
128429MARKET SYSTEMS03/08/2025 02:38:25 PM
CHG0104554 - Production eMDM Maintenance Release
Change Number: CHG0104554
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: MDM - Meter Data Management
Change Title: Production 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
Change Title: Production eMDM Maintenance Release
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
128428MARKET SYSTEMS03/08/2025 02:35:38 PM
CHG0102957 - Roll out of TLS 1.3 support for Gas B2B Hub and disable TLS versions 1.0/1.1
Change Number: CHG0102957
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: Gas Hub
Change Title: Roll out of TLS 1.3 support for Gas B2B Hub and disable TLS versions 1.0/1.1
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: Gas Hub
Change Title: Roll out of TLS 1.3 support for Gas B2B Hub and disable TLS versions 1.0/1.1
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
128420INTER-REGIONAL TRANSFER02/08/2025 12:56:53 PM
Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 02/08/2025
AEMO ELECTRICITY MARKET NOTICE
In order to maintain the power system in a secure operating state in the NSW region, AEMO has invoked automated constraint set CA_BRIS_57A00625 from 1235 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
N-Q-MNSP1
NSW1-QLD1
Manager NEM Real Time Operations
In order to maintain the power system in a secure operating state in the NSW region, AEMO has invoked automated constraint set CA_BRIS_57A00625 from 1235 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
N-Q-MNSP1
NSW1-QLD1
Manager NEM Real Time Operations
128416MARKET SYSTEMS01/08/2025 02:45:02 PM
CHG0105004 - Planned system maintenance to the EMMS PreProduction Environment
Change Number: CHG0105004
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: Windows Server
Change Title: Planned system maintenance to the EMMS PreProduction Environment
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: Windows Server
Change Title: Planned system maintenance to the EMMS PreProduction Environment
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
128413MARKET SYSTEMS01/08/2025 01:27:22 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.
Start Time: 03/08/2025 10:00 AM
End Time: 03/08/2025 14:00 PM
Final Reminder | 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.
Start Time: 03/08/2025 10:00 AM
End Time: 03/08/2025 14:00 PM