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Cancellation of Actual (LOR1) condition in the SA region - 30/07/2024
Cancellation of Actual (LOR1) condition in the SA region - 30/07/2024
The Actual LOR1 Condition in the SA Region advised in AEMO Electricity Market Notice No. 117509 is cancelled at 2040 hrs 30/07/2024.
Manager NEM Real Time Operations
Actual Lack Of Reserve Level 1 (LOR1) in the SA region - 30/07/2024
Actual Lack Of Reserve Level 1 (LOR1) in the SA region - 30/07/2024
An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the SA region from 2000 hrs.
The Actual LOR1 condition is forecast to exist until 2030 hrs
The capacity reserve requirement is 450 MW
The minimum capacity reserve available is 404 MW
Manager NEM Real Time Operations
Non-credible contingency event - QLD region - 30/07/2024
Non-credible contingency event - QLD region - 30/07/2024
At 0537 hrs the Darling Downs Power Station GT1, GT3 and and the steam turbine tripped from 484 MW.
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
Update - Non-credible contingency event - QLD region - 27/07/2024
Update - Non-credible contingency event - QLD region - 27/07/2024
Refer AEMO Electricity Market Notice 117487
At 1702 hrs the H38 Goodna No. 2 275kV Bus and the H38 Goodna No. 1 275/132kV transformer 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
Inter-regional transfer limit variation - Heywood - South East No 2 275 kV Line - SA region - 26/07/2024
Inter-regional transfer limit variation -Heywood - South East No 2 275 kV Line SA region - 26/07/2024
A planned outage of Heywood - South East No 2 275 kV Line in the SA region was scheduled from 0830 hrs 26/07/2024 to 1730 hrs 28/07/2024.
The outage has been extended until 1200 hrs 29/07/2024
Constraint set(s) invoked:
I-HYSE
I-VS_050
I-VS+LKB_050
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Correction - Non-credible contingency event - QLD region - 27/07/2024
Correction to Market Notice 117486
Non-credible contingency event - QLD region - 27/07/2024
At 0951 hrs the H38 Goodna No. 2 275kV Bus and the H38 Goodna No. 1 275/132kV transformer 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 - QLD region - 27/07/2024
Non-credible contingency event - QLD region - 27/07/2024
At 0951 hrs the H3 Goodna No. 2 275kV Bus and the H3 Goodna No. 1 275/132kV transformer 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 - Heywood M1 Transformer - VIC region - 25/07/2024
Inter-regional transfer limit variation - Heywood M1 Transformer - VIC region - 25/07/2024
A planned outage of Heywood M1 Transformer in the VIC region was scheduled from 0600 hrs 25/07/2024 to 1800 hrs 25/07/2024.
The outage has been completed and Heywood M1 Transformer returned to service at 1550 hrs 25/07/2024
Constraint set(s) revoked: V-HYTX_M12
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Keilor - Sth Morang 500kV Line - VIC region - 25/07/2024
Inter-regional transfer limit variation - Keilor - Sth Morang 500kV Line - VIC region - 25/07/2024
A planned outage of Keilor - Sth Morang 500kV Line ] in the VIC region was scheduled from 0700 hrs 25/07/2024 to 1630 hrs 25/07/2024.
The outage has been completed and Keilor - Sth Morang 500kV Line returned to service at 1450 hrs 25/07/2024
Constraint set(s) revoked: V-KTSM_R
Manager NEM Real Time Operations