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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: 06/09/2024 04:07 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
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NON-CONFORMANCE Region NSW1 Thursday, 5 September 2024
NON-CONFORMANCE NSW1 Region Thursday, 5 September 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: MP1
Duration: 05/09/2024 22:30 to 05/09/2024 22:35
Amount: -103 MW
Constraint: NC-N_MP1
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Declaration of electricity market resumption
Declaration of electricity market resumption
Refer initial AEMO Electricity Market Notice 118149
AEMO declares that the suspension of the spot market in New South Wales, Queensland, South Australia, Tasmania and Victoria will end at 1510 hrs on 05 September 2024.
AEMO has taken sufficient steps to exclude the original event having influence on market processes and AEMO assesses that the possibility of suspending the spot market within the next 24 hours due to the same cause is minimal. AEMO also determines that it can operate the market in accordance with the provisions of the NER.
Relevant Market Notices issued under this suspension: 118149
Manager NEM Real Time Operations
Declaration of electricity market suspension
Declaration of electricity market suspension
AEMO declares the spot market suspended in New South Wales, Queensland, South Australia, Tasmania and Victoria with Market Suspension Schedule Pricing (refer NER clause 3.14.5(b)) from Trading Interval 1355 hrs on 5 September 2024 until further notice.
Dispatch prices for the first one or two dispatch intervals of this market suspension will be reviewed manually.
Manager NEM Real Time Operations
Inter-Regional Transfer limit variation - Directlink - NSW Region
Inter-Regional Transfer limit variation - Directlink - NSW Region
There has been an unplanned outage of the No 1 Leg of Directlink .
The following constraint set was invoked at 0735 hrs 05/09/2024
N-MBTE_1
The constraint set contains the following interconnector on the left hand side.
N-Q-MNSP1
Refer AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
Cancellation of Reclassification of a Non-Credible Contingency Event: Terang - Mortlake South 220 kV line opening at the Terang end only - 27/03/2024
Cancellation of Reclassification of a Non-Credible Contingency Event: Terang - Mortlake South 220 kV line opening at the Terang end only - 27/03/2024
Refer AEMO Electricity Market Notice 115842
Based on advice from the asset owner, AEMO considers the trip of the following circuit at Terang is unlikely to re-occur. Accordingly, its classification has reverted to a non-credible contingency event.
Region: VIC
Elements: Terang - Mortlake South 220 kV line opening at the Terang end only
Cancellation time : 1715 hrs 04/09/2024
Constraint set(s) revoked: NIL
Manager NEM Real Time Operations
Cancellation of a Non-Credible Contingency Event: Palmerston - Hadspen 3 & 4 110kV line and 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: Palmerston - Hadspen 3 & 4 110kV and
Cancellation time: 02/09/2024 20:39
Constraint set(s) revoked:
T-HAPM_110_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Refer AEMO Electricity Market Notice 118082
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Cancellation of a Non-Credible Contingency Event: Norwood - Scottsdale 1 110kV line and Norwood-Derby-Scottsdale 110kV 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: Norwood - Scottsdale 1 110kV and Norwood-Derby-Scottsdale 110kV
Cancellation time: 02/09/2024 20:39
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 118081
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: 02/09/2024 20:34
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 118080
Auto-generated on behalf of Manager NEM Real Time Operations