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Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 28/08/2024
In order to maintain the power system in a secure operating state in the NSW region, AEMO has invoked automated constraint set CA_SYDS_55E0E615 from 0900 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
N-Q-MNSP1
Refer to AEMO Network Outage Scheduler (NOS) for further information.
Manager NEM Real Time Operations
Update - Non-credible contingency event - VIC region - 28/08/2024
Update - Non-credible contingency event - VIC region - 28/08/2024
Refer AEMO Electricity Market Notice 117908
At 0134 hrs the APD No 2 Potline was returned to service.
At 0200 hrs the APD No 1 Potline 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
Non-credible contingency event - VIC region - 28/08/2024
Non-credible contingency event - VIC region - 28/08/2024
At 0001 hrs the APD No1 Potline and the APD No 2 Potline tripped.
AEMO did not instruct load shedding.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
[EventId:202408271910_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 27 August 2024 19:10
Issued by Australian Energy Market Operator Ltd at 1910 hrs on 27 August 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 27 August 2024.
Refer to market notice: 117905
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the NSW to VIC directional interconnector.
The negative residue constraint NRM_NSW1_VIC1 ceased operating at 1910 hrs on 27 August 2024.
This is an AEMO autogenerated Market Notice.
[EventId:202408271810_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 27 August 2024 18:10
Issued by Australian Energy Market Operator Ltd at 1810 hrs on 27 August 2024
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 27 August 2024.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the NSW to VIC directional interconnector.
The negative residue constraint set NRM_NSW1_VIC1 commenced operating from 1810 hrs on 27 August 2024.
This constraint set contains an equation with the following interconnectors on the LHS:
VIC1-NSW1
The RHS of the constraint equation may be adjusted to manage residues.
This is an AEMO autogenerated Market Notice.
[EventId:202408271545_confirmed] Prices for interval 27-Aug-2024 15:45 are now confirmed
Issued by Australian Energy Market Operator Ltd at 1605 hrs on 27 August 2024
PRICES ARE NOW CONFIRMED for trading interval 27-Aug-2024 15:45.
In accordance with Market Notice 117891 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply
Prices remain unchanged.
This is an AEMO autogenerated Market Notice.
[EventId:202408271605_confirmed] Prices for interval 27-Aug-2024 16:05 are now confirmed
Issued by Australian Energy Market Operator Ltd at 1605 hrs on 27 August 2024
PRICES ARE NOW CONFIRMED for trading interval 27-Aug-2024 16:05.
In accordance with Market Notice 117897 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply
Prices remain unchanged.
This is an AEMO autogenerated Market Notice.
[EventId:202408271600_confirmed] Prices for interval 27-Aug-2024 16:00 are now confirmed
Issued by Australian Energy Market Operator Ltd at 1605 hrs on 27 August 2024
PRICES ARE NOW CONFIRMED for trading interval 27-Aug-2024 16:00.
In accordance with Market Notice 117896 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply
Prices remain unchanged.
This is an AEMO autogenerated Market Notice.
[EventId:202408271555_confirmed] Prices for interval 27-Aug-2024 15:55 are now confirmed
Issued by Australian Energy Market Operator Ltd at 1605 hrs on 27 August 2024
PRICES ARE NOW CONFIRMED for trading interval 27-Aug-2024 15:55.
In accordance with Market Notice 117895 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply
Prices remain unchanged.
This is an AEMO autogenerated Market Notice.