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116078POWER SYSTEM EVENTS10/04/2024 03:44:19 PM
Update - Non-credible contingency event - QLD region - 10/04/2024
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - QLD region - 10/04/2024
Refer AEMO Electricity Market Notice 116072
At 1540 hrs the Ingham South to Cardwell 132 kV 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
Update - Non-credible contingency event - QLD region - 10/04/2024
Refer AEMO Electricity Market Notice 116072
At 1540 hrs the Ingham South to Cardwell 132 kV 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
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 .
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
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.
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.
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.
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
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
115959SETTLEMENTS RESIDUE04/04/2024 01:30:24 PM
[EventId:202404041330_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 04 April 2024 13:30
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1330 hrs on 4 April 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 4 April 2024.
Refer to market notice: 115958
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 1330 hrs on 4 April 2024.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1330 hrs on 4 April 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 4 April 2024.
Refer to market notice: 115958
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 1330 hrs on 4 April 2024.
This is an AEMO autogenerated Market Notice.
115958SETTLEMENTS RESIDUE04/04/2024 12:35:29 PM
[EventId:202404041235_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 04 April 2024 12:35
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1235 hrs on 4 April 2024
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 4 April 2024.
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 1235 hrs on 4 April 2024.
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.
Issued by Australian Energy Market Operator Ltd at 1235 hrs on 4 April 2024
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 4 April 2024.
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 1235 hrs on 4 April 2024.
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.