Market Notices

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - NSW region - 31/10/2024

At 0028 hrs the Wagga B 330 kV bus tripped which offloaded the Wagga - Walla Walla SF 6Y 330 kV line and Wagga No.3 transformer.

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 - Moorabool - Sydenham No.1 500 kV line - VIC region - 30/10/2024

A planned outage of Moorabool - Sydenham No.1 500 kV line in the VIC region was scheduled from 0500 hrs 22/10/2024 to 1930 hrs 01/11/2024.

The outage has been completed and Moorabool - Sydenham No.1 500 kV line returned to service at 1815 hrs 30/10/2024

Constraint set revoked: V-MLSY_NOEMTT_R

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Refer AEMO Electricity Market Notice 119610

Constraint set CA_SYDS_5632AA58 was invoked from 0940 hrs until 10:45 hrs 29/10/2024.

This constraint set contains equations with the following interconnector on the LHS;
V-SA

Refer to AEMO Network Outage Scheduler (NOS) for further information.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

In order to maintain the power system in a secure operating state in the SA region, AEMO has invoked automated constraint set CA_SYDS_5632AA58 from 0940 hrs until further notice.

This constraint set contains equations with the following interconnector on the LHS;
V-SA

Refer to AEMO Network Outage Scheduler (NOS) for further information.

Manager NEM Real Time Operations

Change Number: CHG0098814
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: MSATS - Consumer Administration and Transfer Solution(CATS)
Change Title: MSATS and eMDM November Maintenance Release
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - [outage element] - NSW region - 24/10/2024

At 1435 hrs 24/10/2024 there was an unplanned outage of Directlink cable 1 and cable 3 (note cable 2 was on a prior outage).

The following constraint set(s) invoked at 1445 hrs 24/10/2024
N-X_MBTE_3

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

Change Number: CHG0099241
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: Local Area Network
Change Title: Migrate DEV / TEST / Pre-Production (PPD) VLAN 104 Gateway in Norwest from the Old Core Switches to the New Core Switches.
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.

Change Number: CHG0099235
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: Local Area Network
Change Title: Migrate Pre-Production (PPD) VLAN 108 Gateway in Norwest from the Old Core Switches to the New Core Switches.
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.

Change Number: CHG0099235
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Local Area Network
Change Title: Migrate Pre-Production (PPD) VLAN 108 Gateway in Norwest from the Old Core Switches to the New Core Switches.
Change Start Date & Time: 24/10/2024 10:00:00 AEST
Change End Date & Time: 24/10/2024 16:00:00 AEST
Outage Start Date & Time: 24/10/2024 11:57:00 AEST
Outage End Date & Time: 24/10/2024 12:02:00 AEST
Environment: Production
Participant Impact and Requirements:
Planned maintenance has been scheduled for the 24th October, commencing 11:57am - 12:02pm AEST. During this time there will be a brief outage (Up to 30 seconds) impacting the following Pre-Production systems:

- MSATS Retail
- EMMS Wholesale
- GAS Market Systems
- WA Market Systems

The maintenance being carried out relates to infrastructure only, no application or functional changes are being performed. If you experience system related issues beyond the outage window (12:02pm) please contact the AEMO Support Hub.

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 .