Market Notices

128461GENERAL NOTICE08/08/2025 05:40:38 PM

Network Augmentation Commissioned - Vic Region - 08/08/2025

AEMO ELECTRICITY MARKET NOTICE


Network Augmentation Commissioned - Vic Region - 08/08/2025

Commissioned:

Plumpton - Sydenham No.1 500 kV cable
Plumpton Terminal Station 500 kV bus

Manager NEM Real Time Operations
     
128458POWER SYSTEM EVENTS07/08/2025 05:40:13 AM

Non-credible contingency event - SA region - 07/08/2025

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - SA region - 07/08/2025

At 0507 hrs the Dorrien end of the Templers West to Dorrien 132 kV line and the Templers battery tripped.

AEMO did not instruct load shedding.

AEMO has not been advised of any disconnection of bulk electrical load.

The cause of this non credible contingency event is not known at this stage.


Manager NEM Real Time Operations
     
128454MARKET SYSTEMS06/08/2025 11:20:34 AM

Completed - CHG0105078 - Pre-Prod MSATS Maintenance Release for webMethods 11.1 upgrade

Change Number: CHG0105078

Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: MSATS - Consumer Administration and Transfer Solution(CATS)_PreProd

Change Title: Pre-Prod MSATS Maintenance Release for webMethods 11.1 upgrade

Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
     
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.
     
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.
     
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.
     
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.
     
128419GENERAL NOTICE01/08/2025 06:30:34 PM

New South Wales - Waratah Super Battery System Integrity Protection Scheme (SIPS) In-Service

AEMO ELECTRICITY MARKET NOTICE.

The Waratah Super Battery System Integrity Protection Scheme (SIPS) has been enabled by TransGrid at 1758 hrs 01/08/2025.

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.
     
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