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112247POWER SYSTEM EVENTS13/12/2023 01:43:17 PM
Non-credible contingency event - TAS region - 13/12/2023
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - TAS region - 13/12/2023
At 1324 hrs the Hadspen - Palmerston No.3 & No.4 110 kV lines 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-credible contingency event - TAS region - 13/12/2023
At 1324 hrs the Hadspen - Palmerston No.3 & No.4 110 kV lines 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
112196MARKET SYSTEMS12/12/2023 07:05:08 AM
CHG0082097 | Production | P3062 Manifestly Incorrect Inputs (MII)? Production Release
Change Number: CHG0082097
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: EMMS - Dispatch
Change Title: P3062 Manifestly Incorrect Inputs (MII) Production Release
Change Start Date & Time: 12/12/2023 08:00:00 AEST
Change End Date & Time: 13/12/2023 17:30:00 AEST
Outage Start Date & Time:
Outage End Date & Time:
Environment: Production
Participant Impact and Requirements: Under this change , AEMO will install an updated version of a key Dispatch application (NEMDE Solutionloader) used in Production for Dispatch, 5-Minute Pre-dispatch, Pre-dispatch, and 7-Day Pre-dispatch.
Changes include:
o Extension of Automated MII Procedures to include detection of FCAS MIIs using an FCAS requirement threshold.
No outages or delays expected. AEMO will advise once complete.
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: EMMS - Dispatch
Change Title: P3062 Manifestly Incorrect Inputs (MII) Production Release
Change Start Date & Time: 12/12/2023 08:00:00 AEST
Change End Date & Time: 13/12/2023 17:30:00 AEST
Outage Start Date & Time:
Outage End Date & Time:
Environment: Production
Participant Impact and Requirements: Under this change , AEMO will install an updated version of a key Dispatch application (NEMDE Solutionloader) used in Production for Dispatch, 5-Minute Pre-dispatch, Pre-dispatch, and 7-Day Pre-dispatch.
Changes include:
o Extension of Automated MII Procedures to include detection of FCAS MIIs using an FCAS requirement threshold.
No outages or delays expected. AEMO will advise once complete.
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 .
112187POWER SYSTEM EVENTS11/12/2023 04:04:48 PM
Update - Non-credible contingency event - SA region - 11/12/2023
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - SA region - 11/12/2023
Refer AEMO Electricity Market Notice 112181
At 1554 hrs the remaining Mintaro - Waterloo 132 kV Line was returned to service.
The following constraint set(s) revoked:
S-X-MNWT+CB
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 - 11/12/2023
Refer AEMO Electricity Market Notice 112181
At 1554 hrs the remaining Mintaro - Waterloo 132 kV Line was returned to service.
The following constraint set(s) revoked:
S-X-MNWT+CB
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
112186MARKET SYSTEMS11/12/2023 03:54:11 PM
CHG0082301 | Production | Planned System Maintenance - Electricity MMS Production Bay transfer
Change Number: CHG0082301
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Electricity Market Management System
Change Title: Planned System Maintenance - Electricity MMS Production Bay transfer
Change Start Date & Time: 11/12/2023 13:00:00 AEST
Change End Date & Time: 13/12/2023 16:00:00 AEST
Outage Start Date & Time:
Outage End Date & Time:
Environment: Production
Participant Impact and Requirements: The maintenance activity is not expected to have any impact. If any issues are identified because of this maintenance activity, please contact the AEMO Support Hub 1300 236 600 .
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: Electricity Market Management System
Change Title: Planned System Maintenance - Electricity MMS Production Bay transfer
Change Start Date & Time: 11/12/2023 13:00:00 AEST
Change End Date & Time: 13/12/2023 16:00:00 AEST
Outage Start Date & Time:
Outage End Date & Time:
Environment: Production
Participant Impact and Requirements: The maintenance activity is not expected to have any impact. If any issues are identified because of this maintenance activity, please contact the AEMO Support Hub 1300 236 600 .
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 .
112168MARKET SYSTEMS11/12/2023 06:40:17 AM
CHG0081726 | Completed | Production | Renewal of webMethods ESB server certificate
Change Number: CHG0081726
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: MSATS - Business to Business data exchange
Change Title: Renewal of webMethods ESB server certificate
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: MSATS - Business to Business data exchange
Change Title: Renewal of webMethods ESB server certificate
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
112167MARKET SYSTEMS11/12/2023 06:39:14 AM
CHG0082105 | Completed | Production | BAU Retail Maintenance Release
Change Number: CHG0082105
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: MDM - Meter Data Management
Change Title: BAU Retail Maintenance Release
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: BAU Retail Maintenance Release
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
112165POWER SYSTEM EVENTS11/12/2023 06:36:10 AM
Non-credible contingency event - SA region - 11/12/2023
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - SA region - 11/12/2023
At 0444 hrs the Mintaro - Waterloo 132 kV Line tripped and the Clare North - Mintaro 132 kV Line tripped at the Mintaro 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 - SA region - 11/12/2023
At 0444 hrs the Mintaro - Waterloo 132 kV Line tripped and the Clare North - Mintaro 132 kV Line tripped at the Mintaro 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
112114SETTLEMENTS RESIDUE08/12/2023 03:50:29 PM
[EventId:202312081550_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 08 December 2023 15:50
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1550 hrs on 8 December 2023
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 8 December 2023.
Refer to market notice: 112094
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 1550 hrs on 8 December 2023.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1550 hrs on 8 December 2023
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 8 December 2023.
Refer to market notice: 112094
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 1550 hrs on 8 December 2023.
This is an AEMO autogenerated Market Notice.
112094SETTLEMENTS RESIDUE08/12/2023 02:51:32 PM
[EventId:202312081450_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 08 December 2023 14:50
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1450 hrs on 8 December 2023
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 8 December 2023.
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 1450 hrs on 8 December 2023.
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 1450 hrs on 8 December 2023
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 8 December 2023.
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 1450 hrs on 8 December 2023.
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.