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Initial - CHG0104553 - Pre-Prod eMDM Maintenance Release
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: 21/07/2025 13:00:00
Change End Date & Time: 21/07/2025 17:00:00
Outage Start Date & Time: 21/07/2025 13:00:00
Outage End Date & Time: 21/07/2025 17:00:00
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.
Non-credible contingency event - QLD region - 18/07/2025
Non-credible contingency event - QLD region - 18/07/2025
At 0825 hrs the H11_Nebo 275/132 kV No.1 Transformer was switched out on a planned outage and the H11_Nebo 275 kV SVC 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
Initial - CHG0104670 - Planned system maintenance to the EMMS PreProduction Environment
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Windows Server
Change Title: Planned system maintenance to the EMMS PreProduction Environment
Change Start Date & Time: 17/07/2025 09:00:00
Change End Date & Time: 17/07/2025 17:00:00
Outage Start Date & Time: 17/07/2025 09:00:00
Outage End Date & Time: 17/07/2025 14:00:00
Environment: Pre-Production
Participant Impact and Requirements: The Pre-Production Electricity Market Management System(EMMS) ,Frequency Performance Payments (FPP), Gas Supply Hub (GSH) will be unavailable during the scheduled outage window.
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.
Completed - CHG0104394 - Planned maintenance affecting the AEMO Market Network.
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: MarketNet
Change Title: Planned maintenance affecting the AEMO Market Network.
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
Completed - CHG0104582 - Pre-Prod eMDM Maintenance Release
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.
STPASA - Cancellation of the Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region on 11/07/2025
The Forecast LOR2 condition in the SA region advised in AEMO Electricity Market Notice No. 128031 is cancelled at 0025 hrs 09/07/2025.
Manager NEM Real Time Operations
STPASA - Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region on 11/07/2025
AEMO declares a Forecast LOR2 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following period:
[1.] From 1000 hrs 11/07/2025 to 1030 hrs 11/07/2025.
The forecast capacity reserve requirement is 833 MW.
The minimum capacity reserve available is 819 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.
Manager NEM Real Time Operations
Electricity Market Management System_PreProd
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: Electricity Market Management System_PreProd
Change Title: Update Shareplex NuTCracker resource allocation
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
STPASA - Cancellation of the Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region on 09/10/2025
The Forecast LOR2 condition in the SA region advised in AEMO Electricity Market Notice No. 128005 is cancelled at 1000hrs 08/07/2025.
No LOR2 condition is currently forecast in the STPASA period.
AEMO Operations