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Reclassification of a Non-Credible Contingency Event: Bayswater - Mt Piper No.5A3 500kV line and Wollar - Mt Piper No.5A5 500kV line in NSW1 due to Lightning.
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: NSW1
Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV
Duration: 25/07/2024 18:56 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE Region QLD1 Wednesday, 24 July 2024
NON-CONFORMANCE QLD1 Region Wednesday, 24 July 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: MPP_2
Duration: 24/07/2024 07:10 to 24/07/2024 08:55
Amount: -20 MW
Constraint: NC-Q_MPP_2
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE Region NSW1 Tuesday, 23 July 2024
NON-CONFORMANCE NSW1 Region Tuesday, 23 July 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: SHGEN
Duration: 23/07/2024 18:05 to 23/07/2024 18:15
Amount: -81 MW
Constraint: NC-N_SHGEN
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of a Non-Credible Contingency Event: Farrell - Reece No.1 220 kV line and Farrell - Reece No.2 220 kV line in TAS1 due to Lightning.
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: TAS1
Lines: Farrell - Reece No.1 220 kV and Farrell - Reece No.2 220 kV
Cancellation time: 21/07/2024 13:54
Constraint set(s) revoked:
F-T-FARE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1
Refer AEMO Electricity Market Notice 117401
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event: Farrell - Reece No.1 220 kV line and Farrell - Reece No.2 220 kV line in TAS1 due to Lightning.
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: Farrell - Reece No.1 220 kV and Farrell - Reece No.2 220 kV
Duration: 21/07/2024 12:51 until further notice
Constraint set(s) invoked:
F-T-FARE_N-2 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
Cancellation: Reclassification of non-credible contingency event due to existence of widespread abnormal conditions - South Australia and Victoria regions.
AEMO considers the occurrence of a non-credible contingency event due to the widespread abnormal conditions advised in AEMO Electricity Market Notice 117373 is no longer reasonably possible and accordingly its classification has reverted to non-credible.
Cancellation time: 1610 hrs 20/07/2024.
Constraint set(s) revoked:
I-SV_250
I-VS_250
Manager NEM Real Time Operations
Cancellation of the reclassification of a Non-Credible Contingency Event: Para-Templers West and Magill-Torrens Island A 275kV lines in SA due to severe weather warning.
Cancellation of the reclassification of a non-credible contingency event as a credible contingency event due to severe weather warning.
AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any severe weather warning in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: SA
Lines: Para-Templers West and Magill-Torrens Island A 275kV lines
Cancellation time: 1600 hrs 20/07/2024
Constraint set(s) revoked: Nil
Refer AEMO Electricity Market Notice 117358.
Manager NEM Real Time Operations
Cancellation of the reclassification of a Non-Credible Contingency Event: Brinkworth-Davenport, Brinkworth-Templers West and Para-Templers West 275kV lines in SA due to severe weather warning .
Cancellation of the reclassification of a non-credible contingency event as a credible contingency event due to severe weather warning.
AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any severe weather warning in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: SA
Lines: Brinkworth-Davenport, Brinkworth-Templers West and Para-Templers West 275kV lines
Cancellation time: 1600 hrs 20/07/2024
Constraint set(s) revoked: Nil
Refer AEMO Electricity Market Notice 117363.
Manager NEM Real Time Operations
NON-CONFORMANCE Region QLD1 Saturday, 20 July 2024
NON-CONFORMANCE QLD1 Region Saturday, 20 July 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: GANGARR1
Duration: 20/07/2024 12:20 to 20/07/2024 13:50
Amount: 60 MW
Constraint: NC-Q_GANGARR1
Auto-generated on behalf of Manager NEM Real Time Operations