Market Notices

116073MARKET SYSTEMS10/04/2024 10:48:45 AM

CHG0085919 | Production | Removal of support of TLS Version 1.1 and lower

Change Number: CHG0085919
Notification issued to: Market Notice

Notification Type: Initial
Change Type: Normal

Service/ Component: MSATS - Business to Business data exchange
Change Title: Removal of support of TLS Version 1.1 and lower

Change Start Date & Time: 14/04/2024 09:00:00 AEST
Change End Date & Time: 14/04/2024 13:00:00 AEST
Outage Start Date & Time:
Outage End Date & Time:

Environment: Production

Participant Impact and Requirements: Participants using TLS version 1.1 and lower, need to update their servers to use TLSv1.2 as a minimum. Failing to do so would impact the connectivity with AEMO. An outage is not expected but, there may be some minor interruptions during the change 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 .
116072POWER SYSTEM EVENTS10/04/2024 09:08:03 AM

Non-credible contingency event - QLD region - 10/04/2024

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - QLD region - 10/04/2024

At 0730 hrs the Ingham South to Cardwell 132 kV line tripped at the Ingham South 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
116060MARKET SYSTEMS09/04/2024 03:14:50 PM

CHG0087945 | Production | Planned System Maintenance activity

Change Number: CHG0087945
Notification issued to: Market Notice
Notification Type: Initial

Change Type: Normal
Service/ Component: EMS NEM - Network Outage Scheduler (NOS)
Change Title: Planned System Maintenance activity.

Change Start Date & Time: 10/04/2024 11:00:00 AEST
Change End Date & Time: 10/04/2024 12:00:00 AEST
Outage Start Date & Time: 10/04/2024 11:00:00 AEST
Outage End Date & Time: 10/04/2024 12:00:00 AEST

Environment: Production

Participant Impact and Requirements: Network Outage Schedular (NOS) will be out of service during the maintenance activity. Please log off from NOS website during the outage. Users will have to log back in once the outage is completed. Please contact your NOS admin or AEMO support hub if your NOS account has been locked out after this change.

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.
116019MARKET SYSTEMS07/04/2024 01:18:16 PM

CHG0087653 | Completed | Production | Prod eMDM Maintenance

Change Number: CHG0087653

Notification issued to: Market Notice

Notification Type: Completed

Change Type: Normal

Service/Component: MDM - Meter Data Management

Change Title: Prod eMDM Maintenance

Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
115998MARKET SYSTEMS06/04/2024 05:03:12 PM

CHG0086184 | Completed | Production | NSW Internet Router Refresh

Change Number: CHG0086184

Notification issued to: Market Notice

Notification Type: Completed

Change Type: Normal

Service/Component: Local Area Network

Change Title: NSW Internet Router Refresh

Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
115975POWER SYSTEM EVENTS05/04/2024 06:57:00 PM

Update - Non-credible contingency event - SA region - 25/03/2024

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - SA region - 25/03/2024

Refer AEMO Electricity Market Notice 115794

At 1736 hrs Torrens Island BC3 275 kV CB was returned to service.
Torrens Island BW3 275 kV CB and Torrens Island - Lefevre 275 kV line previously 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
115948POWER SYSTEM EVENTS03/04/2024 11:45:55 PM

Non-credible contingency event - QLD region - 03/04/2024

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - QLD region - 03/04/2024

At 2322 hrs the Kareeya PS units 1, 2, 3 and 4 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
115947POWER SYSTEM EVENTS03/04/2024 11:16:35 PM

Update - Non-credible contingency event - NSW region - 03/04/2024

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - NSW region - 03/04/2024

Refer AEMO Electricity Market Notice 115944

At 2301 hrs the Eraring Power Station Unit 1 and Unit 2 were 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
115944POWER SYSTEM EVENTS03/04/2024 02:21:43 PM

Non-credible contingency event - NSW region - 03/04/2024

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - NSW region - 03/04/2024

At 1322 hrs the Eraring Power Station Unit 1 and the Eraring Power Station Unit 2 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
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