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122444POWER SYSTEM EVENTS23/12/2024 08:40:02 PM
Update - Non-credible contingency event - SA region - 23/12/2024
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - SA region - 23/12/2024
Refer AEMO Electricity Market Notice 122442
At 2036 hrs the Happy Valley - Morphett Vale East and the Morphett Vale - Cherry Gardens 275kV lines 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
Update - Non-credible contingency event - SA region - 23/12/2024
Refer AEMO Electricity Market Notice 122442
At 2036 hrs the Happy Valley - Morphett Vale East and the Morphett Vale - Cherry Gardens 275kV lines 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
122442POWER SYSTEM EVENTS23/12/2024 04:44:55 PM
Non-credible contingency event - SA region - 23/12/2024
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - SA region - 23/12/2024
At 1632 hrs the Happy Valley - Morphett Vale East 275kV Line and the Morphett Vale - Cherry Gardens 275kV line 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 - SA region - 23/12/2024
At 1632 hrs the Happy Valley - Morphett Vale East 275kV Line and the Morphett Vale - Cherry Gardens 275kV line 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
122318INTER-REGIONAL TRANSFER20/12/2024 03:28:59 PM
Inter-regional transfer limit variation - South East No.61 Capacitor 275kV - SA region - 20/12/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - South East No.61 Capacitor 275kV - SA region - 20/12/2024
At 1445 hrs 20/12/2024 there was an unplanned outage of South East No.61 Capacitor 275kV.
The following constraint set(s) invoked at 1445 hrs 20/12/2024
S-SE_1CP
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - South East No.61 Capacitor 275kV - SA region - 20/12/2024
At 1445 hrs 20/12/2024 there was an unplanned outage of South East No.61 Capacitor 275kV.
The following constraint set(s) invoked at 1445 hrs 20/12/2024
S-SE_1CP
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
122317INTER-REGIONAL TRANSFER20/12/2024 03:16:23 PM
Update Inter-regional transfer limit variation - Lismore SVC 132kV - NSW region - 20/12/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Lismore SVC 132kV - NSW region - 20/12/2024
At 1300 hrs 20/12/2024 there was a short notice outage of Lismore SVC 132kV.
The following constraint set(s) invoked at 1300 hrs 20/12/2024
N-LS_VC1
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,NSW1-QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Lismore SVC 132kV - NSW region - 20/12/2024
At 1300 hrs 20/12/2024 there was a short notice outage of Lismore SVC 132kV.
The following constraint set(s) invoked at 1300 hrs 20/12/2024
N-LS_VC1
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,NSW1-QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
122310INTER-REGIONAL TRANSFER20/12/2024 01:01:43 PM
Inter-regional transfer limit variation - [outage element] - NSW region - 20/12/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - [outage element] - NSW region - 20/12/2024
At 1300 hrs 20/12/2024 there was a short notice outage of [outage element].
The following constraint set(s) invoked at 1300 hrs 20/12/2024
N-LS_VC1
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,NSW1-QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - [outage element] - NSW region - 20/12/2024
At 1300 hrs 20/12/2024 there was a short notice outage of [outage element].
The following constraint set(s) invoked at 1300 hrs 20/12/2024
N-LS_VC1
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,NSW1-QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
122117RESERVE NOTICE17/12/2024 05:44:06 PM
Cancellation of the Actual Lack Of Reserve Level 1 (LOR1) condition in the NSW Region on 17/12/2024
AEMO ELECTRICITY MARKET NOTICE
The Actual LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 122113 is cancelled at 1745 hrs 17/12/2024.
Manager NEM Real Time Operations
The Actual LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 122113 is cancelled at 1745 hrs 17/12/2024.
Manager NEM Real Time Operations
122113RESERVE NOTICE17/12/2024 03:44:28 PM
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 17/12/2024
AEMO ELECTRICITY MARKET NOTICE
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 17/12/2024
An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the NSW region from 1530 hrs.
The Actual LOR1 condition is forecast to exist until 1800 hrs
The capacity reserve requirement is 1340 MW
The minimum capacity reserve available is 1082 MW
Manager NEM Real Time Operations
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 17/12/2024
An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the NSW region from 1530 hrs.
The Actual LOR1 condition is forecast to exist until 1800 hrs
The capacity reserve requirement is 1340 MW
The minimum capacity reserve available is 1082 MW
Manager NEM Real Time Operations
122095RESERVE NOTICE17/12/2024 11:40:17 AM
PDPASA - Cancellation of the Forecast Lack Of Reserve Level 2 (LOR2) in the NSW Region on 17/12/2024
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 122093 is cancelled at 1140 hrs 17/12/2024.
Manager NEM Real Time Operations
The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 122093 is cancelled at 1140 hrs 17/12/2024.
Manager NEM Real Time Operations
122093RESERVE NOTICE17/12/2024 10:19:24 AM
PDPASA - Update of the Forecast Lack Of Reserve Level 2 (LOR2) in the NSW Region on 17/12/2024
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 122070 has been updated to the following:
[1.] From 1600 hrs 17/12/2024 to 1800 hrs 17/12/2024.
The forecast capacity reserve requirement is 745 MW.
The minimum capacity reserve available is 611 MW.
AEMO estimates the latest time at which it would need to intervene through an AEMO intervention event is 1400 hrs on 17/12/2024.
Manager NEM Real Time Operations
The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 122070 has been updated to the following:
[1.] From 1600 hrs 17/12/2024 to 1800 hrs 17/12/2024.
The forecast capacity reserve requirement is 745 MW.
The minimum capacity reserve available is 611 MW.
AEMO estimates the latest time at which it would need to intervene through an AEMO intervention event is 1400 hrs on 17/12/2024.
Manager NEM Real Time Operations