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119694GENERAL NOTICE31/10/2024 10:29:13 AM
Fast Frequency Response Market - Increase in R1 FCAS dispatch caps from 4th November 2024
AEMO ELECTRICITY MARKET NOTICE
Following review of the operation of the Very Fast FCAS market, from 1300 hrs AEST on Monday 4th November AEMO will increase the cap on dispatch of Very Fast Raise (R1) Contingency FCAS from 350 MW to 375 MW
No other changes to the dispatch of Very Fast FCAS or FCAS constraint equation changes will be made on this date.
For information on the Fast Frequency Response (FFR) initiative please visit the website at: https://www.aemo.com.au/initiatives/major-programs/fast-frequency-response
Andrew Groom
AEMO Operations
Following review of the operation of the Very Fast FCAS market, from 1300 hrs AEST on Monday 4th November AEMO will increase the cap on dispatch of Very Fast Raise (R1) Contingency FCAS from 350 MW to 375 MW
No other changes to the dispatch of Very Fast FCAS or FCAS constraint equation changes will be made on this date.
For information on the Fast Frequency Response (FFR) initiative please visit the website at: https://www.aemo.com.au/initiatives/major-programs/fast-frequency-response
Andrew Groom
AEMO Operations
119691POWER SYSTEM EVENTS31/10/2024 03:45:23 AM
Update - Non-credible contingency event - NSW region - 31/10/2024
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - NSW region - 31/10/2024
Refer AEMO Electricity Market Notice 119689
At 0345 hrs the Wagga B 330 kV bus 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
Update - Non-credible contingency event - NSW region - 31/10/2024
Refer AEMO Electricity Market Notice 119689
At 0345 hrs the Wagga B 330 kV bus 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
119689POWER SYSTEM EVENTS31/10/2024 12:49:14 AM
Non-credible contingency event - NSW region - 31/10/2024
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - NSW region - 31/10/2024
At 0028 hrs the Wagga B 330 kV bus tripped which offloaded the Wagga - Walla Walla SF 6Y 330 kV line and Wagga No.3 transformer.
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 is not known at this stage.
Manager NEM Real Time Operations
Non-credible contingency event - NSW region - 31/10/2024
At 0028 hrs the Wagga B 330 kV bus tripped which offloaded the Wagga - Walla Walla SF 6Y 330 kV line and Wagga No.3 transformer.
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 is not known at this stage.
Manager NEM Real Time Operations
119686SETTLEMENTS RESIDUE30/10/2024 04:00:34 PM
[EventId:202410301600_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 30 October 2024 16:00
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1600 hrs on 30 October 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 30 October 2024.
Refer to market notice: 119683
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 1600 hrs on 30 October 2024.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1600 hrs on 30 October 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 30 October 2024.
Refer to market notice: 119683
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 1600 hrs on 30 October 2024.
This is an AEMO autogenerated Market Notice.
119683SETTLEMENTS RESIDUE30/10/2024 03:05:20 PM
[EventId:202410301505_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 30 October 2024 15:05
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1505 hrs on 30 October 2024
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 30 October 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 1505 hrs on 30 October 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.
Issued by Australian Energy Market Operator Ltd at 1505 hrs on 30 October 2024
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 30 October 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 1505 hrs on 30 October 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.
119668GENERAL NOTICE30/10/2024 12:29:13 PM
Update - Lightning vulnerable lines in Vic region
AEMO ELECTRICITY MARKET NOTICE.
Update - Lightning vulnerable lines in Vic region
Refer to AEMO Electricity Market Notice 119029
At 1525 hrs on 18/10/2024 the Rowville - Yallourn No. 7 220 kV Line and the Rowville - Yallourn No. 8 220 kV Line tripped and auto-reclosed.
The cause of the trip was identified as due to Lightning.
In accordance with SO_OP_3715, AEMO now considers the Rowville - Yallourn No. 7 220 kV Line and the Rowville - Yallourn No. 8 220 kV Line to be vulnerable with a category of probable due to Lightning.
Manager NEM Real Time Operations
Update - Lightning vulnerable lines in Vic region
Refer to AEMO Electricity Market Notice 119029
At 1525 hrs on 18/10/2024 the Rowville - Yallourn No. 7 220 kV Line and the Rowville - Yallourn No. 8 220 kV Line tripped and auto-reclosed.
The cause of the trip was identified as due to Lightning.
In accordance with SO_OP_3715, AEMO now considers the Rowville - Yallourn No. 7 220 kV Line and the Rowville - Yallourn No. 8 220 kV Line to be vulnerable with a category of probable due to Lightning.
Manager NEM Real Time Operations
119667GENERAL NOTICE29/10/2024 09:02:13 PM
Update - Pre dispatch demand forecast - Qld region
AEMO ELECTRICITY MARKET NOTICE
Update - Pre dispatch demand forecast - Qld region
Refer market notice: 119666
The issue relating to the Queensland Pre dispatch demand forecast has been resolved.
Manager NEM Real Time Operations
Update - Pre dispatch demand forecast - Qld region
Refer market notice: 119666
The issue relating to the Queensland Pre dispatch demand forecast has been resolved.
Manager NEM Real Time Operations
119666GENERAL NOTICE29/10/2024 07:43:09 PM
Pre dispatch demand forecast - Qld region
AEMO ELECTRICITY MARKET NOTICE
Pre dispatch demand forecast - Qld region
AEMO is aware of an error in the Queensland pre dispatch demand forecast.
AEMO is currently working to resolve the issue.
Dispatch results are not impacted.
Manager NEM Real Time Operations
Pre dispatch demand forecast - Qld region
AEMO is aware of an error in the Queensland pre dispatch demand forecast.
AEMO is currently working to resolve the issue.
Dispatch results are not impacted.
Manager NEM Real Time Operations
119665SETTLEMENTS RESIDUE29/10/2024 05:45:19 PM
[EventId:202410291745_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 29 October 2024 17:45
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1745 hrs on 29 October 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 29 October 2024.
Refer to market notice: 119664
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 1745 hrs on 29 October 2024.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1745 hrs on 29 October 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 29 October 2024.
Refer to market notice: 119664
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 1745 hrs on 29 October 2024.
This is an AEMO autogenerated Market Notice.