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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
NON-CONFORMANCE Region QLD1 Friday, 18 July 2025
NON-CONFORMANCE QLD1 Region Friday, 18 July 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: DDPS1
Duration: 18/07/2025 06:25 to 18/07/2025 06:30
Amount: -14 MW
Constraint: NC-Q_DDPS1
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of the Actual Lack Of Reserve Level 1 (LOR1) condition in the NSW Region on 16/07/2025
The Actual LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 128136 is cancelled at 1915 hrs 16/07/2025.
Manager NEM Real Time Operations
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 16/07/2025
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 16/07/2025
An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the NSW region from 1800 hrs.
The Actual LOR1 condition is forecast to exist until 1900 hrs
The capacity reserve requirement is 1400 MW
The minimum capacity reserve available is 1257 MW
Manager NEM Real Time Operations
NON-CONFORMANCE Region QLD1 Wednesday, 16 July 2025
NON-CONFORMANCE QLD1 Region Wednesday, 16 July 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: ULPBESS1
Duration: 16/07/2025 07:10 to 16/07/2025 07:20
Amount: 7 MW
Constraint: NC-Q_ULPBESS1
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of Actual (LOR1) condition in the NSW region - 15/07/2025
Cancellation of Actual (LOR1) condition in the NSW region - 15/07/2025
The Actual LOR1 Condition in the NSW Region advised in AEMO Electricity Market Notice No.128131 is cancelled at 1908 hrs 15/07/2025.
Manager NEM Real Time Operations
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 15/07/2025
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 15/07/2025
An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the NSW region from 1730 hrs.
The Actual LOR1 condition is forecast to exist until 1900 hrs
The capacity reserve requirement is 1400 MW
The minimum capacity reserve available is 1025 MW
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.