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NON-CONFORMANCE Region QLD1 Wednesday, 5 March 2025
NON-CONFORMANCE QLD1 Region Wednesday, 5 March 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: MPP_1
Duration: 05/03/2025 17:35 to 05/03/2025 17:45
Amount: -12 MW
Constraint: NC-Q_MPP_1
Auto-generated on behalf of Manager NEM Real Time Operations
Inter-regional transfer limit variation - Liddell - Tomago 82 330kV Line - NSW region - 05/03/2025
Inter-regional transfer limit variation - Liddell - Tomago 82 330kV Line - NSW region - 05/03/2025
A planned outage of Liddell - Tomago 82 330kV Line in the NSW region was scheduled from 0600 hrs 03/03/2025 to 1600 hrs 06/03/2025.
The outage has been completed and Liddell - Tomago 82 330kV Line returned to service at 1635 hrs 05/03/2025
Constraint set(s) revoked: N-LDTM_82
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Ewingsdale-Mullumbimby 9G5 132kV line - NSW region - 05/03/2025
Inter-regional transfer limit variation - Ewingsdale-Mullumbimby 9G5 132kV line - NSW region - 05/03/2025
At 1603 hrs 05/03/2025 there was an unplanned outage of Ewingsdale-Mullumbimby 9G5 132kV line.
The following constraint set(s) invoked at 1615 hrs 05/03/2025
N-BAMB_132_OPEN
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Update - Non-credible contingency event - NSW region - 05/03/2025
Update - Non-credible contingency event - NSW region - 05/03/2025
Refer AEMO Electricity Market Notice 125268
At 1400 hrs the Directlink DC1 was returned to service.
(At 1030 hrs the Ewingsdale-Mullumbimby 9G5 132kV 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
NON-CONFORMANCE Region NSW1 Wednesday, 5 March 2025
NON-CONFORMANCE NSW1 Region Wednesday, 5 March 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: WTAHB1
Duration: 05/03/2025 12:00 to 05/03/2025 12:25
Amount: -120 MW
Constraint: NC-N_WTAHB1
Auto-generated on behalf of Manager NEM Real Time Operations
Non-credible contingency event - NSW region - 05/03/2025
Non-credible contingency event - NSW region - 05/03/2025
At 1030 hrs the Ewingsdale-Mullumbimby 9G5 132kV line and the Directlink DC1 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
Inter-Regional Transfer limit variation - Directlink - NSW Region
Inter-Regional Transfer limit variation - Directlink - NSW Region
There has been an unplanned outage of the No 1 Leg of Directlink .
The following constraint set was invoked at 1040 hrs 05/03/2025
N-X_MBTE_2
The constraint set contains the following interconnector on the left hand side.
N-Q-MNSP1
Refer AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
NON-CONFORMANCE Region NSW1 Tuesday, 4 March 2025
NON-CONFORMANCE NSW1 Region Tuesday, 4 March 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: WTAHB1
Duration: 04/03/2025 11:55 to 04/03/2025 12:00
Amount: -33 MW
Constraint: NC-N_WTAHB1
Auto-generated on behalf of Manager NEM Real Time Operations
Inter-regional transfer limit variation - Halys - Tarong 8868 275 kV Line - QLD region - 03/03/2025
Inter-regional transfer limit variation - Halys - Tarong 8868 275 kV Line - QLD region - 03/03/2025
At 1115 hrs 03/03/2025 there was a short notice outage of Halys - Tarong 8868 275 kV Line.
The following constraint set(s) invoked at 1115 hrs 03/03/2025
Q-HATR
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