Market Notices

Change Number: CHG0102489

Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: MDM - Meter Data Management_PreProd
Change Title: Pre-Prod eMDM Maintenance Release
Change Start Date & Time: 22/04/2025 13:00:00
Change End Date & Time: 22/04/2025 17:00:00
Outage Start Date & Time: 22/04/2025 13:00:00
Outage End Date & Time: 22/04/2025 15:00:00
Environment: Pre-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.

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - QLD region - 16/04/2025

Refer AEMO Electricity Market Notice 126579

At 1231 hrs the Greenbank - Molendinar 8825 275kV line 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

AEMO ELECTRICITY MARKET NOTICE.

Refer market notice: 126577

Non-credible contingency event - QLD region - 16/04/2025

At 2110 hrs the Greenbank - Molendinar 8825 275kV line tripped at the Molendinar end only.

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

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Greenbank - Molendinar 8825 275kV line - QLD region - 16/04/2025

At 2110 hrs 16/04/2025 there was an unplanned outage of Greenbank - Molendinar 8825 275kV line.

The following constraint set(s) invoked at 2120 hrs 16/04/2025
Q-GBMO_8824_8825

This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1815 hrs on 14 April 2025

CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 14 April 2025.

Refer to market notice: 126550

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

The negative residue constraint NRM_NSW1_VIC1 ceased operating at 1815 hrs on 14 April 2025.

This is an AEMO autogenerated Market Notice.

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Collector -Yass 3L 330kV Line - NSW region - 14/04/2025

A planned outage of the Collector -Yass 3L 330kV Line in the NSW region was scheduled from 0700 hrs 12/04/2025 to 1700 hrs 16/04/2025.

The outage has been completed and the Collector -Yass 3L 330kV Line returned to service at 1735 hrs 14/04/2025

Constraint set(s) revoked: N-CTYS_3L_WG_CLOSE

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1730 hrs on 14 April 2025

ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 14 April 2025.

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

The negative residue constraint set NRM_NSW1_VIC1 commenced operating from 1730 hrs on 14 April 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.

AEMO ELECTRICITY MARKET NOTICE

AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the NSW region for the following Period:


[1.] From 1730 hrs 14/04/2025 to 1800 hrs 14/04/2025.
The forecast capacity reserve requirement is 1537 MW.
The minimum capacity reserve available is 1365 MW.


Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 126538 is cancelled at 1600 hrs 14/04/2025.

Manager NEM Real Time Operations