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124477INTER-REGIONAL TRANSFER11/02/2025 11:27:16 PM
Inter-regional transfer limit variation - Armidale No 1 SVC- NSW region - 11/02/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Armidale No 1 SVC - NSW region - 11/02/2025
At 2315 hrs 11/02/2025 there was an unplanned outage of Armidale No 1 SVC.
The following constraint set(s) invoked at 2325 hrs 11/02/2025
N-AR_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 - Armidale No 1 SVC - NSW region - 11/02/2025
At 2315 hrs 11/02/2025 there was an unplanned outage of Armidale No 1 SVC.
The following constraint set(s) invoked at 2325 hrs 11/02/2025
N-AR_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
124476RECLASSIFY CONTINGENCY11/02/2025 11:06:36 PM
Reclassification of a Non-Credible Contingency Event: Armidale - Dumaresq 8C 330kV line and Armidale - Sapphire WF 8E 330kV line in NSW1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Duration: 11/02/2025 23:06 until further notice
Constraint set(s) invoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Duration: 11/02/2025 23:06 until further notice
Constraint set(s) invoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Auto-generated on behalf of Manager NEM Real Time Operations
124475RECLASSIFY CONTINGENCY11/02/2025 07:35:54 PM
Cancellation: Reclassification of non-credible contingency event due to existence of widespread abnormal condition -Tas region
AEMO ELECTRICITY MARKET NOTICE.
AEMO considers the occurrence of a non-credible contingency event due to the widespread abnormal conditions advised in AEMO Electricity Market Notice 124471 is no longer reasonably possible and accordingly its classification has reverted to non-credible.
Cancellation time: 1930 hrs 11/02/2025.
Constraint set(s) revoked:
F-T-FARE_N-2
T-GH_RC12_250
Manager NEM Real Time Operations
AEMO considers the occurrence of a non-credible contingency event due to the widespread abnormal conditions advised in AEMO Electricity Market Notice 124471 is no longer reasonably possible and accordingly its classification has reverted to non-credible.
Cancellation time: 1930 hrs 11/02/2025.
Constraint set(s) revoked:
F-T-FARE_N-2
T-GH_RC12_250
Manager NEM Real Time Operations
124474RECLASSIFY CONTINGENCY11/02/2025 06:54:46 PM
Cancellation of a Non-Credible Contingency Event: Armidale - Dumaresq 8C 330kV line and Armidale - Sapphire WF 8E 330kV line in NSW1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Cancellation time: 11/02/2025 18:54
Constraint set(s) revoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Refer AEMO Electricity Market Notice 124457
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Cancellation time: 11/02/2025 18:54
Constraint set(s) revoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Refer AEMO Electricity Market Notice 124457
Auto-generated on behalf of Manager NEM Real Time Operations
124473RECLASSIFY CONTINGENCY11/02/2025 06:19:46 PM
Cancellation of a Non-Credible Contingency Event: Bannaby - Mt Piper 5A6 500kV line and Bannaby - Mt Piper 5A7 500kV line in NSW1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: NSW1
Lines: Bannaby - Mt Piper 5A6 500kV and Bannaby - Mt Piper 5A7 500kV
Cancellation time: 11/02/2025 18:19
Constraint set(s) revoked:
N-5A6+5A7_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
VIC1-NSW1
Refer AEMO Electricity Market Notice 124459
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: NSW1
Lines: Bannaby - Mt Piper 5A6 500kV and Bannaby - Mt Piper 5A7 500kV
Cancellation time: 11/02/2025 18:19
Constraint set(s) revoked:
N-5A6+5A7_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
VIC1-NSW1
Refer AEMO Electricity Market Notice 124459
Auto-generated on behalf of Manager NEM Real Time Operations
124472INTER-REGIONAL TRANSFER11/02/2025 06:00:41 PM
Inter-regional transfer limit variation - Yass Overload Control Scheme - NSW region - 11/02/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Yass Overload Control Scheme - NSW region - 11/02/2025
At 1750 hrs 11/02/2025 there was a short notice outage of Yass Overload Control Scheme.
The following constraint set(s) invoked at 1750 hrs: N-YSWG_SCHEME
This constraint set(s) contains equations with the following interconnectors on the LHS,
V-S-MNSP1
VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Yass Overload Control Scheme - NSW region - 11/02/2025
At 1750 hrs 11/02/2025 there was a short notice outage of Yass Overload Control Scheme.
The following constraint set(s) invoked at 1750 hrs: N-YSWG_SCHEME
This constraint set(s) contains equations with the following interconnectors on the LHS,
V-S-MNSP1
VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
124471RECLASSIFY CONTINGENCY11/02/2025 05:47:52 PM
Reclassification of a Non-Credible Contingency Event: Farrell - Reece No.1 and No.2 220 kV lines in TAS due to Bushfire.
AEMO ELECTRICITY MARKET NOTICE.
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Bushfire. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: TAS
Lines: Farrell - Reece No.1 and No.2 220 kV lines
Duration:17:45 hrs 11/02/2025 until further notice
Constraint set(s) invoked:
T-GH_RC12_250, F-T-FARE_N-2
Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Bushfire. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: TAS
Lines: Farrell - Reece No.1 and No.2 220 kV lines
Duration:17:45 hrs 11/02/2025 until further notice
Constraint set(s) invoked:
T-GH_RC12_250, F-T-FARE_N-2
Manager NEM Real Time Operations
124470RECLASSIFY CONTINGENCY11/02/2025 04:09:45 PM
Cancellation of a Non-Credible Contingency Event: Bayswater - Mt Piper No.5A3 500kV line and Wollar - Mt Piper No.5A5 500kV line in NSW1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: NSW1
Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV
Cancellation time: 11/02/2025 16:09
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 124463
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: NSW1
Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV
Cancellation time: 11/02/2025 16:09
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 124463
Auto-generated on behalf of Manager NEM Real Time Operations
124469INTER-REGIONAL TRANSFER11/02/2025 03:59:36 PM
Inter-regional transfer limit variation - MLTS-SMTS No1 500 kV line CB at SYTS - VIC region - 11/02/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - MLTS-SMTS No1 500 kV line CB at SYTS - VIC region - 11/02/2025
At 1538 hrs 11/02/2025 there was an unplanned outage of MLTS-SMTS No1 500 kV line CB at SYTS .
The following constraint set(s) invoked at 1600 hrs 11/02/2025
V-SY_CB
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1,V-S-MNSP1,V-SA,VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - MLTS-SMTS No1 500 kV line CB at SYTS - VIC region - 11/02/2025
At 1538 hrs 11/02/2025 there was an unplanned outage of MLTS-SMTS No1 500 kV line CB at SYTS .
The following constraint set(s) invoked at 1600 hrs 11/02/2025
V-SY_CB
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1,V-S-MNSP1,V-SA,VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations