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124048RECLASSIFY CONTINGENCY03/02/2025 03:42:01 PM
Reclassification of a Non-Credible Contingency Event: Gordon - Chapel St No 1 220kV line and Gordon - Chapel St No 2 220kV line in TAS1 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: TAS1
Lines: Gordon - Chapel St No 1 220kV and Gordon - Chapel St No 2 220kV
Duration: 03/02/2025 15:41 until further notice
Constraint set(s) invoked:
F-T-CSGO Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1
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: TAS1
Lines: Gordon - Chapel St No 1 220kV and Gordon - Chapel St No 2 220kV
Duration: 03/02/2025 15:41 until further notice
Constraint set(s) invoked:
F-T-CSGO Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1
Auto-generated on behalf of Manager NEM Real Time Operations
124044POWER SYSTEM EVENTS03/02/2025 02:13:15 PM
Update - Non-credible contingency event - TAS region - 03/02/2025
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - TAS region - 03/02/2025
Refer AEMO Electricity Market Notice 124043
The cause of this non credible contingency event is not known at this stage.
AEMO is not satisfied that this non credible event is unlikely to re-occur.
AEMO has therefore reclassified this event as a credible contingency event until further notice.
Region: TAS
Elements: Farrell - Reece No.1 and No.2 220 kV lines
Duration: 1410 hrs 03/02/2025 until further notice
Constraint set(s) invoked: F-T-FARE_N-2
Manager NEM Real Time Operations
Update - Non-credible contingency event - TAS region - 03/02/2025
Refer AEMO Electricity Market Notice 124043
The cause of this non credible contingency event is not known at this stage.
AEMO is not satisfied that this non credible event is unlikely to re-occur.
AEMO has therefore reclassified this event as a credible contingency event until further notice.
Region: TAS
Elements: Farrell - Reece No.1 and No.2 220 kV lines
Duration: 1410 hrs 03/02/2025 until further notice
Constraint set(s) invoked: F-T-FARE_N-2
Manager NEM Real Time Operations
124043POWER SYSTEM EVENTS03/02/2025 02:02:24 PM
Non-credible contingency event - TAS region - 03/02/2025
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - TAS region - 03/02/2025
At 1333 hrs the Farrell - Reece No.1 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 has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
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 - 03/02/2025
At 1333 hrs the Farrell - Reece No.1 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 has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
124039RESERVE NOTICE03/02/2025 10:39:23 AM
PDPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the VIC Region on 03/02/2025
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR1 condition in the VIC region advised in AEMO Electricity Market Notice No. 124025 is cancelled at 1015 hrs 03/02/2025.
Manager NEM Real Time Operations
The Forecast LOR1 condition in the VIC region advised in AEMO Electricity Market Notice No. 124025 is cancelled at 1015 hrs 03/02/2025.
Manager NEM Real Time Operations
124038RESERVE NOTICE03/02/2025 10:32:42 AM
PDPASA - Update of the Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region on 03/02/2025
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 124034 has been updated to the following:
[1.] From 1930 hrs 03/02/2025 to 2000 hrs 03/02/2025.
The forecast capacity reserve requirement is 583 MW.
The minimum capacity reserve available is 516 MW.
Manager NEM Real Time Operations
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 124034 has been updated to the following:
[1.] From 1930 hrs 03/02/2025 to 2000 hrs 03/02/2025.
The forecast capacity reserve requirement is 583 MW.
The minimum capacity reserve available is 516 MW.
Manager NEM Real Time Operations
124034RESERVE NOTICE03/02/2025 04:54:30 AM
PDPASA - Update of the Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region on 03/02/2025
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 124026 has been updated at 0445 hrs 03/02/2025 to the following:
[1.] From 1800 hrs 03/02/2025 to 1830 hrs 03/02/2025.
The forecast capacity reserve requirement is 598 MW.
The minimum capacity reserve available is 419 MW.
[2.] From 1930 hrs 03/02/2025 to 2030 hrs 03/02/2025.
The forecast capacity reserve requirement is 617 MW.
The minimum capacity reserve available is 380 MW.
Manager NEM Real Time Operations
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 124026 has been updated at 0445 hrs 03/02/2025 to the following:
[1.] From 1800 hrs 03/02/2025 to 1830 hrs 03/02/2025.
The forecast capacity reserve requirement is 598 MW.
The minimum capacity reserve available is 419 MW.
[2.] From 1930 hrs 03/02/2025 to 2030 hrs 03/02/2025.
The forecast capacity reserve requirement is 617 MW.
The minimum capacity reserve available is 380 MW.
Manager NEM Real Time Operations
124032RECLASSIFY CONTINGENCY03/02/2025 04:24:13 AM
Cancellation of a Non-Credible Contingency Event: Yallourn - Rowville 7 220 kV line and Yallourn - Rowville 8 220 kV line in VIC1 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: VIC1
Lines: Yallourn - Rowville 7 220 kV and Yallourn - Rowville 8 220 kV
Cancellation time: 03/02/2025 04:24
Constraint set(s) revoked:
V-ROYP78_R_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Refer AEMO Electricity Market Notice 124010
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: VIC1
Lines: Yallourn - Rowville 7 220 kV and Yallourn - Rowville 8 220 kV
Cancellation time: 03/02/2025 04:24
Constraint set(s) revoked:
V-ROYP78_R_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Refer AEMO Electricity Market Notice 124010
Auto-generated on behalf of Manager NEM Real Time Operations
124031RECLASSIFY CONTINGENCY03/02/2025 02:04:16 AM
Cancellation of a Non-Credible Contingency Event: Eildon PS - Mt Beauty No.1 220 kV line and Eildon PS - Mt Beauty No.2 220 kV line in VIC1 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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Cancellation time: 03/02/2025 02:04
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 124023
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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Cancellation time: 03/02/2025 02:04
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 124023
Auto-generated on behalf of Manager NEM Real Time Operations
124030RECLASSIFY CONTINGENCY03/02/2025 12:19:10 AM
Cancellation of a Non-Credible Contingency Event: Tumoulin - Woree No.877 275 kV line and Chalumbin - Turkinje No.7166 132 kV line in QLD1 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: QLD1
Lines: Tumoulin - Woree No.877 275 kV and Chalumbin - Turkinje No.7166 132 kV
Cancellation time: 03/02/2025 00:19
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 124019
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: QLD1
Lines: Tumoulin - Woree No.877 275 kV and Chalumbin - Turkinje No.7166 132 kV
Cancellation time: 03/02/2025 00:19
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 124019
Auto-generated on behalf of Manager NEM Real Time Operations