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102213POWER SYSTEM EVENTS14/10/2022 09:42:48 AM
Non-credible contingency event - Tas region - 14/10/2022
AEMO ELECTRICITY MARKET NOTICE
Non-credible contingency event - Tas region - 14/10/2022
At 0919 hrs the following plant tripped.
Liapoota - Palmerston tee Waddamana No. 1 and No. 2 220 kV Lines
Basslink
AEMO did not instruct load shedding.
Approximately 530 MW of electrical load lost.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Non-credible contingency event - Tas region - 14/10/2022
At 0919 hrs the following plant tripped.
Liapoota - Palmerston tee Waddamana No. 1 and No. 2 220 kV Lines
Basslink
AEMO did not instruct load shedding.
Approximately 530 MW of electrical load lost.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
102137RESERVE NOTICE07/10/2022 07:28:33 PM
PDPASA - Update of the suspect Lack Of Reserve Level 3 (LOR3) in the NSW Region on 08/10/2022
AEMO ELECTRICITY MARKET NOTICE
The suspect LOR3 condition advised in AEMO Electricity Market Notice No. 102136 has been reviewed.
AEMO considers this forecast LOR3 condition in the 1830 PD PASA solution invalid. Subsequent PD PASA runs are producing valid solutions.
No LOR condition is currently forecast for the NSW region.
Manager NEM Real Time Operations
The suspect LOR3 condition advised in AEMO Electricity Market Notice No. 102136 has been reviewed.
AEMO considers this forecast LOR3 condition in the 1830 PD PASA solution invalid. Subsequent PD PASA runs are producing valid solutions.
No LOR condition is currently forecast for the NSW region.
Manager NEM Real Time Operations
102136RESERVE NOTICE07/10/2022 06:33:29 PM
PDPASA - Suspect Lack Of Reserve Level 3 (LOR3) in the NSW Region on 08/10/2022
AEMO ELECTRICITY MARKET NOTICE
AEMO considers that there are suspect Forecast LOR3 conditions for the NSW region for the following periods:
1. From 0730 hrs on 08/10/2022 to 0800 hrs on 08/10/2022.
2. From 1000 hrs 08/10/2022 to 1030 hrs on 08/10/2022.
AEMO is currently investigating these LOR3 forecast conditions.
Manager NEM Real Time Operations
AEMO considers that there are suspect Forecast LOR3 conditions for the NSW region for the following periods:
1. From 0730 hrs on 08/10/2022 to 0800 hrs on 08/10/2022.
2. From 1000 hrs 08/10/2022 to 1030 hrs on 08/10/2022.
AEMO is currently investigating these LOR3 forecast conditions.
Manager NEM Real Time Operations
102079POWER SYSTEM EVENTS05/10/2022 04:57:14 PM
Non-credible contingency event - NSW region - 05/10/2022
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - NSW region - 05/10/2022
At 1548 hrs at New England Solar Farm, 330 kV / 33 kV Transformer 1 and 2 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 - NSW region - 05/10/2022
At 1548 hrs at New England Solar Farm, 330 kV / 33 kV Transformer 1 and 2 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
101476POWER SYSTEM EVENTS04/09/2022 05:19:54 PM
Update - Non-credible contingency event - NSW region - 04/09/2022
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - NSW region - 04/09/2022
Refer AEMO ELECTRICITY MARKET NOTICE MN101475
At 1701 hrs the Uralla 330 kV B busbar and 330 kV CB 5012 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
Update - Non-credible contingency event - NSW region - 04/09/2022
Refer AEMO ELECTRICITY MARKET NOTICE MN101475
At 1701 hrs the Uralla 330 kV B busbar and 330 kV CB 5012 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
101475POWER SYSTEM EVENTS04/09/2022 03:14:38 PM
Non-credible contingency event - NSW region - 04/09/2022
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - NSW region - 04/09/2022
At 1454 hrs the Uralla 330 kV B busbar and 330 kV CB 5012 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 - NSW region - 04/09/2022
At 1454 hrs the Uralla 330 kV B busbar and 330 kV CB 5012 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
101401POWER SYSTEM EVENTS29/08/2022 01:19:30 PM
Non-credible contingency event - NSW region - 29/08/2022
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - NSW region - 29/08/2022
At 1259 hrs the Armidale to Dumaresq 8C 330kV Line tripped at the Armidale end only.
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 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-credible contingency event - NSW region - 29/08/2022
At 1259 hrs the Armidale to Dumaresq 8C 330kV Line tripped at the Armidale end only.
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 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
101370POWER SYSTEM EVENTS26/08/2022 01:03:48 PM
Update - Non-credible contingency event - NSW region - 26/08/2022
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - NSW region - 26/08/2022
Refer AEMO ELECTRICITY MARKET NOTICE MN101367
At 1214 hrs the Collector WF 330 kV A bus 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
Update - Non-credible contingency event - NSW region - 26/08/2022
Refer AEMO ELECTRICITY MARKET NOTICE MN101367
At 1214 hrs the Collector WF 330 kV A bus 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
101367POWER SYSTEM EVENTS26/08/2022 10:06:13 AM
Non-credible contingency event - NSW region - 26/08/2022
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - NSW region - 26/08/2022
At 0823 hrs the Collector WF 330 KV A Bus 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 - NSW region - 26/08/2022
At 0823 hrs the Collector WF 330 KV A Bus 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