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118327MARKET INTERVENTION20/09/2024 07:27:04 AM
Foreseeable AEMO intervention in SA region
AEMO ELECTRICITY MARKET NOTICE
Foreseeable AEMO intervention in SA region
AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the SA region from 1630 hrs 20/09/2024.
The foreseeable circumstance requiring the need for intervention is Voltage.
AEMO estimates that, in the absence of sufficient market response by 1430 hrs 20/09/2024, AEMO may need to intervene by issuing a direction.
Manager NEM Real Time Operations
Foreseeable AEMO intervention in SA region
AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the SA region from 1630 hrs 20/09/2024.
The foreseeable circumstance requiring the need for intervention is Voltage.
AEMO estimates that, in the absence of sufficient market response by 1430 hrs 20/09/2024, AEMO may need to intervene by issuing a direction.
Manager NEM Real Time Operations
118325MARKET INTERVENTION19/09/2024 04:57:32 PM
Update Direction - AGL SA Generation Pty Limited - TORRB4 TORRENS ISLAN
AEMO ELECTRICITY MARKET NOTICE.
Update Direction - AGL SA Generation Pty Limited - TORRB4 TORRENS ISLAN
Refer AEMO Electricity Market Notice 118315
The TORRB4 TORRENS ISLAN direction is now expected to stay in place until 0900 hrs 20/09/2024.
The direction update is issued at 1700 hrs 19/09/2024.
Manager NEM Real Time Operations
Update Direction - AGL SA Generation Pty Limited - TORRB4 TORRENS ISLAN
Refer AEMO Electricity Market Notice 118315
The TORRB4 TORRENS ISLAN direction is now expected to stay in place until 0900 hrs 20/09/2024.
The direction update is issued at 1700 hrs 19/09/2024.
Manager NEM Real Time Operations
118324MARKET INTERVENTION19/09/2024 04:56:14 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 AEMO Electricity Market Notice 118316
The TORRB2 TORRENS ISLAN direction is now expected to stay in place until 1530 hrs 20/09/2024.
The direction update is issued at 1700 hrs 19/09/2024.
Manager NEM Real Time Operations
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer AEMO Electricity Market Notice 118316
The TORRB2 TORRENS ISLAN direction is now expected to stay in place until 1530 hrs 20/09/2024.
The direction update is issued at 1700 hrs 19/09/2024.
Manager NEM Real Time Operations
118323CONSTRAINTS19/09/2024 04:20:22 PM
Update to system normal constraint equation in NSW for transient voltage stability in south-west NSW
AEMO ELECTRICITY MARKET NOTICE
Refer to market notice 92840.
Transgrid has advised AEMO of an update to the transient voltage stability limit in south-west NSW for loss of Darlington Point to Wagga (63) 330 kV line. The limit will include terms for the Darlington Point and Riverina BESS.
The following constraint equation will be updated with the above changes at 1100 hrs Friday 20th September 2024.
N::N_NIL_63
For full details on the formulation, the new constraint equation has now been loaded into AEMO's pre-production systems.
For further details on these constraint equation please contact ben.blake@aemo.com.au
Ben Blake
AEMO Operations
Refer to market notice 92840.
Transgrid has advised AEMO of an update to the transient voltage stability limit in south-west NSW for loss of Darlington Point to Wagga (63) 330 kV line. The limit will include terms for the Darlington Point and Riverina BESS.
The following constraint equation will be updated with the above changes at 1100 hrs Friday 20th September 2024.
N::N_NIL_63
For full details on the formulation, the new constraint equation has now been loaded into AEMO's pre-production systems.
For further details on these constraint equation please contact ben.blake@aemo.com.au
Ben Blake
AEMO Operations
118322POWER SYSTEM EVENTS19/09/2024 04:16:27 PM
Update - Non-credible contingency event - TAS region - 19/09/2024
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - TAS region - 19/09/2024
Refer AEMO Electricity Market Notice 118321
At 1446 hrs the Gordon - Chapel St No 1 and No 2 220 kV lines were returned to service.
This non-credible contingency event was caused by lightning. 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.
Manager NEM Real Time Operations
Update - Non-credible contingency event - TAS region - 19/09/2024
Refer AEMO Electricity Market Notice 118321
At 1446 hrs the Gordon - Chapel St No 1 and No 2 220 kV lines were returned to service.
This non-credible contingency event was caused by lightning. 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.
Manager NEM Real Time Operations
118321POWER SYSTEM EVENTS19/09/2024 03:28:41 PM
Update - Non-credible contingency event - TAS region - 19/09/2024
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - TAS region - 19/09/2024
At 1340 hrs the Gordon - Chapel St No1 and No 2 220 kV lines tripped.
AEMO did not instruct load shedding.
AEMO has advised of approximately 112 MW disconnection of bulk electrical load,
disconnection of generation at Studland Bay Wind generator (71 MW) and 23 MW generation reduction at Gordon Power station.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Update - Non-credible contingency event - TAS region - 19/09/2024
At 1340 hrs the Gordon - Chapel St No1 and No 2 220 kV lines tripped.
AEMO did not instruct load shedding.
AEMO has advised of approximately 112 MW disconnection of bulk electrical load,
disconnection of generation at Studland Bay Wind generator (71 MW) and 23 MW generation reduction at Gordon Power station.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
118320POWER SYSTEM EVENTS19/09/2024 01:54:59 PM
Non-credible contingency event - TAS region - 19/09/2024
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - TAS region - 19/09/2024
At 1340 hrs the Gordon - Chapel St No1 and No 2 220 kV lines 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 - TAS region - 19/09/2024
At 1340 hrs the Gordon - Chapel St No1 and No 2 220 kV lines 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
118316MARKET INTERVENTION18/09/2024 04:56:06 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 AEMO Electricity Market Notice 118306
The TORRB2 TORRENS ISLAN direction is now expected to stay in place until 0400 hrs 20/09/2024.
The direction update is issued at 1700 hrs 18/09/2024.
Manager NEM Real Time Operations
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer AEMO Electricity Market Notice 118306
The TORRB2 TORRENS ISLAN direction is now expected to stay in place until 0400 hrs 20/09/2024.
The direction update is issued at 1700 hrs 18/09/2024.
Manager NEM Real Time Operations
118315MARKET INTERVENTION18/09/2024 04:54:45 PM
Update Direction - AGL SA Generation Pty Limited - TORRB4 TORRENS ISLAN
AEMO ELECTRICITY MARKET NOTICE.
Update Direction - AGL SA Generation Pty Limited - TORRB4 TORRENS ISLAN
Refer AEMO Electricity Market Notice 118308
The TORRB4 TORRENS ISLAN direction is now expected to stay in place until 0400 hrs 20/09/2024.
The direction update is issued at 1700 hrs 18/09/2024.
Manager NEM Real Time Operations
Update Direction - AGL SA Generation Pty Limited - TORRB4 TORRENS ISLAN
Refer AEMO Electricity Market Notice 118308
The TORRB4 TORRENS ISLAN direction is now expected to stay in place until 0400 hrs 20/09/2024.
The direction update is issued at 1700 hrs 18/09/2024.
Manager NEM Real Time Operations