Market Notices

128360SETTLEMENTS RESIDUE26/07/2025 09:00:21 AM

[EventId:202507260900_NRM_SA1_VIC1_stopped] NEGRES CONSTRAINT NRM_SA1_VIC1 ceased operating from 26 July 2025 09:00

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 0900 hrs on 26 July 2025

CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - SA to VIC - 26 July 2025.

Refer to market notice: 128358

AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the SA to VIC directional interconnector.

The negative residue constraint NRM_SA1_VIC1 ceased operating at 0900 hrs on 26 July 2025.

This is an AEMO autogenerated Market Notice.
     
128359POWER SYSTEM EVENTS26/07/2025 08:58:23 AM

Update - Non-credible contingency event - NSW region - 26/07/2025

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - NSW region - 26/07/2025

Refer AEMO Electricity Market Notice 128353

At 0832 hrs the Canberra A 132kV Bus was returned to service.

The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.

AEMO will not reclassify this event as a credible contingency event.

Manager NEM Real Time Operations
     
128358SETTLEMENTS RESIDUE26/07/2025 08:05:28 AM

[EventId:202507260805_NRM_SA1_VIC1_started] NEGRES CONSTRAINT NRM_SA1_VIC1 started operating from 26 July 2025 08:05

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 0805 hrs on 26 July 2025

ACTUAL NEGATIVE SETTLEMENT RESIDUES - SA to VIC - 26 July 2025.

Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the SA to VIC directional interconnector.

The negative residue constraint set NRM_SA1_VIC1 commenced operating from 0805 hrs on 26 July 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.
     
128353POWER SYSTEM EVENTS26/07/2025 06:00:15 AM

Non-credible contingency event - NSW region - 26/07/2025

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - NSW region - 26/07/2025

At 0449 hrs the Canberra 132 kV A Bus and the Canberra to Latham A2 132 kV Line 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
     
128347SETTLEMENTS RESIDUE25/07/2025 09:00:30 PM

[EventId:202507252100_NRM_VIC1_SA1_stopped] NEGRES CONSTRAINT NRM_VIC1_SA1 ceased operating from 25 July 2025 21:00

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 2100 hrs on 25 July 2025

CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 25 July 2025.

Refer to market notice: 128337

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 2100 hrs on 25 July 2025.

This is an AEMO autogenerated Market Notice.
     
128346SETTLEMENTS RESIDUE25/07/2025 06:30:26 PM

[EventId:202507251830_NRM_VIC1_NSW1_stopped] NEGRES CONSTRAINT NRM_VIC1_NSW1 ceased operating from 25 July 2025 18:30

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1830 hrs on 25 July 2025

CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to NSW - 25 July 2025.

Refer to market notice: 128338

AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the VIC to NSW directional interconnector.

The negative residue constraint NRM_VIC1_NSW1 ceased operating at 1830 hrs on 25 July 2025.

This is an AEMO autogenerated Market Notice.
     
128338SETTLEMENTS RESIDUE25/07/2025 05:35:24 PM

[EventId:202507251735_NRM_VIC1_NSW1_started] NEGRES CONSTRAINT NRM_VIC1_NSW1 started operating from 25 July 2025 17:35

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1735 hrs on 25 July 2025

ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to NSW - 25 July 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 NSW directional interconnector.

The negative residue constraint set NRM_VIC1_NSW1 commenced operating from 1735 hrs on 25 July 2025.

This constraint set contains an equation with the following interconnectors on the LHS:
VIC1-NSW1

The RHS of the constraint equation may be adjusted to manage residues.


This is an AEMO autogenerated Market Notice.
     
128337SETTLEMENTS RESIDUE25/07/2025 05:35:24 PM

[EventId:202507251735_NRM_VIC1_SA1_started] NEGRES CONSTRAINT NRM_VIC1_SA1 started operating from 25 July 2025 17:35

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1735 hrs on 25 July 2025

ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 25 July 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 1735 hrs on 25 July 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.
     
128316MARKET SYSTEMS25/07/2025 02:51:14 PM

Initial - CHG0104554 - Production eMDM Maintenance Release

Change Number: CHG0104554

Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: MDM - Meter Data Management
Change Title: Production eMDM Maintenance Release
Change Start Date & Time: 03/08/2025 10:00:00
Change End Date & Time: 03/08/2025 14:00:00
Outage Start Date & Time: 03/08/2025 10:00:00
Outage End Date & Time: 03/08/2025 14:00:00
Environment: Production
Participant Impact and Requirements: Users will not be able to access MSATS during the outage period.

Meter data processing and RM reports will not be available during the outage period.

User Rights Management (URM) will continue to operate, however the administration screens will not be accessible.

MSATS B2B/B2M Transactions and B2B MSATS Screens will be unavailable during this outage

NMI Discovery will not be available during the outage period.

CDR and CDP will not be available during the outage period.

Support Information:
Report any impacts to the AEMO Information and Support Hub or call 1300 236 600.
Please refer to https://aemo.service-now.com/participantportal?id=pp_services_status for any planned/unplanned maintenance activities.
     
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