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126291MARKET SYSTEMS04/04/2025 03:33:34 PM
Inital - CHG0101896 - EMMS Pre-Production Systems will be transferred to the alternative datacentre for maintenance activities .
Change Number: CHG0101896
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Electricity Market Management System_PreProd
Change Title: EMMS Pre-Production Systems will be transferred to the alternative datacentre for maintenance activities .
Change Start Date & Time: 01/04/2025 08:00:00
Change End Date & Time: 11/04/2025 17:00:00
Outage Start Date & Time: 03/04/2025 08:00:00
Outage End Date & Time: 03/04/2025 22:00:00
Environment: Pre-Production
Participant Impact and Requirements: EMMS Pre-Production Systems will be transferred to the alternative datacentre for maintenance activities. Maintenance activities will be conducted on the following dates:
3/04/2025
7/04/2025
8/04/2025
During the window,FPP calculations may be delayed at various points.
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_PreProd
Change Title: EMMS Pre-Production Systems will be transferred to the alternative datacentre for maintenance activities .
Change Start Date & Time: 01/04/2025 08:00:00
Change End Date & Time: 11/04/2025 17:00:00
Outage Start Date & Time: 03/04/2025 08:00:00
Outage End Date & Time: 03/04/2025 22:00:00
Environment: Pre-Production
Participant Impact and Requirements: EMMS Pre-Production Systems will be transferred to the alternative datacentre for maintenance activities. Maintenance activities will be conducted on the following dates:
3/04/2025
7/04/2025
8/04/2025
During the window,FPP calculations may be delayed at various points.
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 .
126281NON-CONFORMANCE04/04/2025 01:15:15 PM
NON-CONFORMANCE Region SA1 Friday, 4 April 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE SA1 Region Friday, 4 April 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: ADPBA1
Duration: 04/04/2025 12:30 to 04/04/2025 13:15
Amount: -6 MW
Constraint: NC-S_ADPBA1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE SA1 Region Friday, 4 April 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: ADPBA1
Duration: 04/04/2025 12:30 to 04/04/2025 13:15
Amount: -6 MW
Constraint: NC-S_ADPBA1
Auto-generated on behalf of Manager NEM Real Time Operations
126275MARKET SYSTEMS04/04/2025 09:23:36 AM
Inital - CHG0101896 - EMMS Pre-Production Systems will be transferred to the alternative datacentre for maintenance activities .
Change Number: CHG0101896
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Electricity Market Management System_PreProd
Change Title: EMMS Pre-Production Systems will be transferred to the alternative datacentre for maintenance activities .
Change Start Date & Time: 01/04/2025 08:00:00
Change End Date & Time: 11/04/2025 17:00:00
Outage Start Date & Time: 03/04/2025 08:00:00
Outage End Date & Time: 03/04/2025 22:00:00
Environment: Pre-Production
Participant Impact and Requirements: EMMS Pre-Production Systems will be transferred to the alternative datacentre for maintenance activities. Maintenance activities will be conducted on the following dates:
3/04/2025
7/04/2025
8/04/2025
During the window,FPP calculations may be delayed at various points.
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_PreProd
Change Title: EMMS Pre-Production Systems will be transferred to the alternative datacentre for maintenance activities .
Change Start Date & Time: 01/04/2025 08:00:00
Change End Date & Time: 11/04/2025 17:00:00
Outage Start Date & Time: 03/04/2025 08:00:00
Outage End Date & Time: 03/04/2025 22:00:00
Environment: Pre-Production
Participant Impact and Requirements: EMMS Pre-Production Systems will be transferred to the alternative datacentre for maintenance activities. Maintenance activities will be conducted on the following dates:
3/04/2025
7/04/2025
8/04/2025
During the window,FPP calculations may be delayed at various points.
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 .
126271POWER SYSTEM EVENTS04/04/2025 07:44:04 AM
Update - Non-credible contingency event - QLD region - 04/04/2025
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - QLD region - 04/04/2025
Refer AEMO Electricity Market Notice 126262
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 cancel the reclassification of this event as a credible contingency event.
Manager NEM Real Time Operations
Update - Non-credible contingency event - QLD region - 04/04/2025
Refer AEMO Electricity Market Notice 126262
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 cancel the reclassification of this event as a credible contingency event.
Manager NEM Real Time Operations
126269NON-CONFORMANCE04/04/2025 06:20:15 AM
NON-CONFORMANCE Region QLD1 Friday, 4 April 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE QLD1 Region Friday, 4 April 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: MPP_2
Duration: 04/04/2025 05:55 to 04/04/2025 06:20
Amount: 77 MW
Constraint: NC-Q_MPP_2
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE QLD1 Region Friday, 4 April 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: MPP_2
Duration: 04/04/2025 05:55 to 04/04/2025 06:20
Amount: 77 MW
Constraint: NC-Q_MPP_2
Auto-generated on behalf of Manager NEM Real Time Operations
126264NON-CONFORMANCE04/04/2025 04:55:19 AM
NON-CONFORMANCE Region NSW1 Friday, 4 April 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE NSW1 Region Friday, 4 April 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: MP2
Duration: 04/04/2025 04:45 to 04/04/2025 04:55
Amount: -26 MW
Constraint: NC-N_MP2
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE NSW1 Region Friday, 4 April 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: MP2
Duration: 04/04/2025 04:45 to 04/04/2025 04:55
Amount: -26 MW
Constraint: NC-N_MP2
Auto-generated on behalf of Manager NEM Real Time Operations
126263GENERAL NOTICE04/04/2025 08:11:29 AM
Update - Vulnerable lines in Qld region
AEMO ELECTRICITY MARKET NOTICE.
Update - Lightning vulnerable lines in Qld region
Refer to AEMO Electricity Market Notice 126262 and 126271
At 0152 hrs 04/04/2025 the the Ross - Townsville South No 7156 and 7249 132kV lines tripped.
The cause of the trip was identified as due to lightning.
In accordance with SO_OP_3715, AEMO now considers the the Ross - Townsville South No 7156 and 7249 132kV lines to be vulnerable with a category of probable due to lightning.
Manager NEM Real Time Operations
Update - Lightning vulnerable lines in Qld region
Refer to AEMO Electricity Market Notice 126262 and 126271
At 0152 hrs 04/04/2025 the the Ross - Townsville South No 7156 and 7249 132kV lines tripped.
The cause of the trip was identified as due to lightning.
In accordance with SO_OP_3715, AEMO now considers the the Ross - Townsville South No 7156 and 7249 132kV lines to be vulnerable with a category of probable due to lightning.
Manager NEM Real Time Operations
126262POWER SYSTEM EVENTS04/04/2025 02:15:54 AM
Non-credible contingency event - QLD region - 04/04/2025
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - QLD region - 04/04/2025
At 0152 hrs the Ross - Townsville South No 7156 and 7249 132kV lines tripped and auto reclosed.
The cause of this non credible contingency event is not known at this stage.
AEMO is not satisfied that this non credible event is unlikely to re-occur.
AEMO has therefore reclassified this event as a credible contingency event until further notice.
Region: QLD
Elements: Ross - Townsville South No 7156 and 7249 132kV lines.
Duration: 0152 hrs 04/04/2025 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations
Non-credible contingency event - QLD region - 04/04/2025
At 0152 hrs the Ross - Townsville South No 7156 and 7249 132kV lines tripped and auto reclosed.
The cause of this non credible contingency event is not known at this stage.
AEMO is not satisfied that this non credible event is unlikely to re-occur.
AEMO has therefore reclassified this event as a credible contingency event until further notice.
Region: QLD
Elements: Ross - Townsville South No 7156 and 7249 132kV lines.
Duration: 0152 hrs 04/04/2025 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations
126259NON-CONFORMANCE03/04/2025 07:15:20 PM
NON-CONFORMANCE Region QLD1 Thursday, 3 April 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE QLD1 Region Thursday, 3 April 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: W/HOE#2
Duration: 03/04/2025 19:05 to 03/04/2025 19:15
Amount: -13 MW
Constraint: NC-Q_W/HOE#2
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE QLD1 Region Thursday, 3 April 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: W/HOE#2
Duration: 03/04/2025 19:05 to 03/04/2025 19:15
Amount: -13 MW
Constraint: NC-Q_W/HOE#2
Auto-generated on behalf of Manager NEM Real Time Operations