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123354POWER SYSTEM EVENTS15/01/2025 10:45:07 PM
Non-credible contingency event - NSW region - 15/01/2025
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - NSW region - 15/01/2025
At 2019 hrs the Tomago - Taree (963) 132kV line and the Tomago - Brandy Hill (96C) 132kV line tripped.
AEMO did not instruct load shedding.
AEMO has been advised of disconnection of 80 MW 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 - NSW region - 15/01/2025
At 2019 hrs the Tomago - Taree (963) 132kV line and the Tomago - Brandy Hill (96C) 132kV line tripped.
AEMO did not instruct load shedding.
AEMO has been advised of disconnection of 80 MW of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
123334INTER-REGIONAL TRANSFER15/01/2025 05:12:38 PM
Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 15/01/2025
AEMO ELECTRICITY MARKET NOTICE
In order to maintain the power system in a secure operating state in the NSW region, AEMO has invoked automated constraint set CA_BRIS_5699E75F from 1655 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
V-S-MNSP1
VIC1-NSW1
Manager NEM Real Time Operations
In order to maintain the power system in a secure operating state in the NSW region, AEMO has invoked automated constraint set CA_BRIS_5699E75F from 1655 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
V-S-MNSP1
VIC1-NSW1
Manager NEM Real Time Operations
123293MARKET INTERVENTION15/01/2025 05:01:31 PM
Update Direction - AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAN
AEMO ELECTRICITY MARKET NOTICE.
Update Direction - AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAN
Refer to Market Notice 123224
The TORRB3 TORRENS ISLAN direction is now expected to stay in place until 0400 hrs 17/01/2025.
The direction update is issued at 1700 hrs 15/01/2025.
Manager NEM Real Time Operations
Update Direction - AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAN
Refer to Market Notice 123224
The TORRB3 TORRENS ISLAN direction is now expected to stay in place until 0400 hrs 17/01/2025.
The direction update is issued at 1700 hrs 15/01/2025.
Manager NEM Real Time Operations
123292MARKET INTERVENTION15/01/2025 04:58:31 PM
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
AEMO ELECTRICITY MARKET NOTICE.
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer to Market Notice 123216
The TORRB2 TORRENS ISLAN direction is now expected to stay in place until 0400 hrs 17/01/2025.
The direction update is issued at 1700 hrs 15/01/2025.
Manager NEM Real Time Operations
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer to Market Notice 123216
The TORRB2 TORRENS ISLAN direction is now expected to stay in place until 0400 hrs 17/01/2025.
The direction update is issued at 1700 hrs 15/01/2025.
Manager NEM Real Time Operations
123276INTER-REGIONAL TRANSFER15/01/2025 02:21:49 PM
Inter-regional transfer limit variation - Murray - Lower Tumut 330 kV 66 line - NSW region - 15/01/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Murray - Lower Tumut 330 kV 66 line - NSW region - 15/01/2025
At 1400 hrs 15/01/2025 there was an unplanned outage of Murray - Lower Tumut 330 kV 66 line.
The following constraint set(s) invoked at 1415 hrs 15/01/2025
I-LTMS
This constraint set(s) contains equations with the following interconnectors on the LHS.
VIC1-NSW1,V-S-MNSP1,NSW1-QLD1,T-V-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Murray - Lower Tumut 330 kV 66 line - NSW region - 15/01/2025
At 1400 hrs 15/01/2025 there was an unplanned outage of Murray - Lower Tumut 330 kV 66 line.
The following constraint set(s) invoked at 1415 hrs 15/01/2025
I-LTMS
This constraint set(s) contains equations with the following interconnectors on the LHS.
VIC1-NSW1,V-S-MNSP1,NSW1-QLD1,T-V-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
123273INTER-REGIONAL TRANSFER15/01/2025 02:28:14 PM
Inter-regional transfer limit variation - Lower Tumut - Yass 330 kV 03 Line - NSW region - 15/01/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Lower Tumut - Yass 330 kV 03 Line - NSW region - 15/01/2025
At 1358 hrs 15/01/2025 there was an unplanned outage of Lower Tumut - Yass 330 kV 03 Line.
The following constraint set(s) invoked at 1400 hrs 15/01/2025
N-X_LTYS_MNYS
This constraint set(s) contains equations with the following interconnectors on the LHS.
VIC1-NSW1,N-Q-MNSP1,NSW1-QLD1,V-S-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Lower Tumut - Yass 330 kV 03 Line - NSW region - 15/01/2025
At 1358 hrs 15/01/2025 there was an unplanned outage of Lower Tumut - Yass 330 kV 03 Line.
The following constraint set(s) invoked at 1400 hrs 15/01/2025
N-X_LTYS_MNYS
This constraint set(s) contains equations with the following interconnectors on the LHS.
VIC1-NSW1,N-Q-MNSP1,NSW1-QLD1,V-S-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
123269INTER-REGIONAL TRANSFER15/01/2025 02:25:37 PM
Inter-regional transfer limit variation - Muswellbrook 330/132 kV Transformer 1 - NSW region - 15/01/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Muswellbrook 330/132 kV Transformer 1 - NSW region - 15/01/2025
At 1337 hrs 15/01/2025 there was an unplanned outage of Muswellbrook 330/132 kV Transformer 1.
The following constraint set(s) invoked at 1355 hrs 15/01/2025
N-MUTW_88
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,NSW1-QLD1,T-V-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Muswellbrook 330/132 kV Transformer 1 - NSW region - 15/01/2025
At 1337 hrs 15/01/2025 there was an unplanned outage of Muswellbrook 330/132 kV Transformer 1.
The following constraint set(s) invoked at 1355 hrs 15/01/2025
N-MUTW_88
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,NSW1-QLD1,T-V-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
123224MARKET INTERVENTION14/01/2025 07:00:51 PM
Update Direction - AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAN
AEMO ELECTRICITY MARKET NOTICE.
Update Direction - AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAN
Refer to Market Notice 123215
TORRB3 TORRENS ISLAN at 0730 hrs 15/01/2025 to Remain synchronised and follow dispatch targets.
The TORRB3 TORRENS ISLAN direction is expected to stay in place until 0400 hrs 16/01/2025.
The direction update is issued at 1900 hrs 14/01/2025.
Manager NEM Real Time Operations
Update Direction - AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAN
Refer to Market Notice 123215
TORRB3 TORRENS ISLAN at 0730 hrs 15/01/2025 to Remain synchronised and follow dispatch targets.
The TORRB3 TORRENS ISLAN direction is expected to stay in place until 0400 hrs 16/01/2025.
The direction update is issued at 1900 hrs 14/01/2025.
Manager NEM Real Time Operations
123216MARKET INTERVENTION14/01/2025 04:02:18 PM
Direction - SA region to AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
AEMO ELECTRICITY MARKET NOTICE
Direction - SA region to AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer to Market Notice 123213
In accordance with section 116 of the National Electricity Law, AEMO is issuing a direction to AGL SA Generation Pty Limited. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a1)(1).
Direction issued to: AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN at 1600 hrs 14/01/2025
Type of resource: generating unit
Required actions: Remain synchronised and follow dispatch targets at 0730 hrs 15/01/2025
Services provided: Voltage Control
Circumstances necessitating the Direction: Voltage
Circumstances necessitating the Direction additional detail: The synchronous generating units currently expected to be synchronised in SA will be inadequate to maintain sufficient Voltage Control in SA. Intervention is required to maintain the power system in a secure operating state
Expected duration: 0400 hrs 16/01/2025.
AGL SA Generation Pty Limited does not incur any civil monetary liability for a relevant action taken in accordance with this direction unless the action is taken in bad faith.
Manager NEM Real Time Operations
Direction - SA region to AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer to Market Notice 123213
In accordance with section 116 of the National Electricity Law, AEMO is issuing a direction to AGL SA Generation Pty Limited. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a1)(1).
Direction issued to: AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN at 1600 hrs 14/01/2025
Type of resource: generating unit
Required actions: Remain synchronised and follow dispatch targets at 0730 hrs 15/01/2025
Services provided: Voltage Control
Circumstances necessitating the Direction: Voltage
Circumstances necessitating the Direction additional detail: The synchronous generating units currently expected to be synchronised in SA will be inadequate to maintain sufficient Voltage Control in SA. Intervention is required to maintain the power system in a secure operating state
Expected duration: 0400 hrs 16/01/2025.
AGL SA Generation Pty Limited does not incur any civil monetary liability for a relevant action taken in accordance with this direction unless the action is taken in bad faith.
Manager NEM Real Time Operations