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115043RECLASSIFY CONTINGENCY23/02/2024 03:04:34 PM
Cancellation of the reclassification of a Non-Credible Contingency Event: Tungatinah - Waddamana No.1 and No.2 110kV lines in TAS due to bushfire.
AEMO ELECTRICITY MARKET NOTICE.
Cancellation of the reclassification of a non-credible contingency event as a credible contingency event due to bushfire.
AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any bushfire in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: TAS
Lines: Tungatinah - Waddamana No.1 and No.2 110kV lines
Cancellation time: 23/02/2024 15:00
Constraint set(s) revoked: T-TUWA12_110_N-2
Refer AEMO Electricity Market Notice 114955
Manager NEM Real Time Operations
Cancellation of the reclassification of a non-credible contingency event as a credible contingency event due to bushfire.
AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any bushfire in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: TAS
Lines: Tungatinah - Waddamana No.1 and No.2 110kV lines
Cancellation time: 23/02/2024 15:00
Constraint set(s) revoked: T-TUWA12_110_N-2
Refer AEMO Electricity Market Notice 114955
Manager NEM Real Time Operations
115041RECLASSIFY CONTINGENCY23/02/2024 03:00:01 PM
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.
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: NSW1
Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV
Duration: 23/02/2024 14:59 until further notice
Constraint set(s) invoked:
NONE
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: NSW1
Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV
Duration: 23/02/2024 14:59 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
115037RECLASSIFY CONTINGENCY23/02/2024 02:20:25 PM
Reclassification of a Non-Credible Contingency Event: Uranquinty Power Station in NSW Region 23/02/2024
AEMO ELECTRICITY MARKET NOTICE
Reclassification of a Non-Credible Contingency Event: Uranquinty Power Station in NSW Region 23/02/2024
Based on advice from the asset owner, AEMO has declared the simultaneous trip of all the generators at Uranquinty Power Station as a credible contingency event.
AEMO considers the simultaneous trip of those generators to now be more likely.
AEMO has reclassified this as a credible contingency event from 1420 hrs 23/02/2024.
To manage power system security constraint set N-URANQUINTY_N-2 invoked from 1420 hrs 23/02/2024 until further notice.
Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event: Uranquinty Power Station in NSW Region 23/02/2024
Based on advice from the asset owner, AEMO has declared the simultaneous trip of all the generators at Uranquinty Power Station as a credible contingency event.
AEMO considers the simultaneous trip of those generators to now be more likely.
AEMO has reclassified this as a credible contingency event from 1420 hrs 23/02/2024.
To manage power system security constraint set N-URANQUINTY_N-2 invoked from 1420 hrs 23/02/2024 until further notice.
Manager NEM Real Time Operations
115020RECLASSIFY CONTINGENCY23/02/2024 12:40:40 PM
Reclassification of a Non-Credible Contingency Event: Bannaby - Mt Piper 5A6 500kV line and Bannaby - Mt Piper 5A7 500kV line in NSW1 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: NSW1
Lines: Bannaby - Mt Piper 5A6 500kV and Bannaby - Mt Piper 5A7 500kV
Duration: 23/02/2024 12:40 until further notice
Constraint set(s) invoked:
N-5A6+5A7_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
VIC1-NSW1
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: NSW1
Lines: Bannaby - Mt Piper 5A6 500kV and Bannaby - Mt Piper 5A7 500kV
Duration: 23/02/2024 12:40 until further notice
Constraint set(s) invoked:
N-5A6+5A7_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
VIC1-NSW1
Auto-generated on behalf of Manager NEM Real Time Operations
115012NON-CONFORMANCE23/02/2024 09:10:15 AM
NON-CONFORMANCE Region QLD1 Friday, 23 February 2024
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE QLD1 Region Friday, 23 February 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: PUMP1
Duration: 23/02/2024 09:05 to 23/02/2024 09:10
Amount: 243 MW
Constraint: NC-Q_PUMP1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE QLD1 Region Friday, 23 February 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: PUMP1
Duration: 23/02/2024 09:05 to 23/02/2024 09:10
Amount: 243 MW
Constraint: NC-Q_PUMP1
Auto-generated on behalf of Manager NEM Real Time Operations
115011RECLASSIFY CONTINGENCY23/02/2024 06:14:25 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: 23/02/2024 06:14
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 114987
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: 23/02/2024 06:14
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 114987
Auto-generated on behalf of Manager NEM Real Time Operations
114987RECLASSIFY CONTINGENCY22/02/2024 07:09:01 PM
Reclassification 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
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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Duration: 22/02/2024 19:08 until further notice
Constraint set(s) invoked:
NONE
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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Duration: 22/02/2024 19:08 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
114966RECLASSIFY CONTINGENCY22/02/2024 04:54:09 PM
Cancellation of the reclassification of a Non-Credible Contingency Event: Torrens Island A - Cherry Gardens 275 kV line and Para - Angas Creek 132 kV line in SA due to bushfire.
AEMO ELECTRICITY MARKET NOTICE.
Cancellation of the reclassification of a non-credible contingency event as a credible contingency event due to bushfire.
AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any bushfire in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: SA
Lines: Torrens Island A - Cherry Gardens 275 kV line and Para - Angas Creek 132 kV line
Cancellation time: 22/02/2024 16:50
Constraint set(s) revoked: Nil
Refer AEMO Electricity Market Notice 114965
Manager NEM Real Time Operations
Cancellation of the reclassification of a non-credible contingency event as a credible contingency event due to bushfire.
AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any bushfire in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: SA
Lines: Torrens Island A - Cherry Gardens 275 kV line and Para - Angas Creek 132 kV line
Cancellation time: 22/02/2024 16:50
Constraint set(s) revoked: Nil
Refer AEMO Electricity Market Notice 114965
Manager NEM Real Time Operations
114965RECLASSIFY CONTINGENCY22/02/2024 03:53:07 PM
Reclassification of a Non-Credible Contingency Event: Torrens Island A - Cherry Gardens 275kV line and Para - Angas Creek 132 kV line in SA due to bushfire.
AEMO ELECTRICITY MARKET NOTICE.
Reclassification of a non-credible contingency event as a credible contingency event due to bushfire.
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: SA
Lines: Torrens Island A - Cherry Gardens 275kV line and Para - Angas Creek 132 kV line
Duration: 22/02/2024 15:50 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations
Reclassification of a non-credible contingency event as a credible contingency event due to bushfire.
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: SA
Lines: Torrens Island A - Cherry Gardens 275kV line and Para - Angas Creek 132 kV line
Duration: 22/02/2024 15:50 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations