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[EventId:202408010640_NRM_VIC1_NSW1_started] NEGRES CONSTRAINT NRM_VIC1_NSW1 started operating from 01 August 2024 06:40
Issued by Australian Energy Market Operator Ltd at 0640 hrs on 1 August 2024
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to NSW - 1 August 2024.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the VIC to NSW directional interconnector.
The negative residue constraint set NRM_VIC1_NSW1 commenced operating from 0640 hrs on 1 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.
Increase to QNI limit to next hold point of 1400 MW Qld to NSW
Refer to market notices 117060.
AEMO, TransGrid, Powerlink have reviewed the test results following the QNI minor testing on 19th June 2024. The next hold point can now be released.
The hold point of 1400 MW from Qld to NSW will be implemented as of 1000 hrs 31st July 2024.
Please also refer to the published formal QNI minor testing information at the following link:
https://www.aemo.com.au/consultations/current-and-closed-consultations/qld-to-nsw-interconnector-qni-upgrade
Ben Blake
AEMO Operations
[EventId:202407300755_NRM_VIC1_NSW1_stopped] NEGRES CONSTRAINT NRM_VIC1_NSW1 ceased operating from 30 July 2024 07:55
Issued by Australian Energy Market Operator Ltd at 0755 hrs on 30 July 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to NSW - 30 July 2024.
Refer to market notice: 117505
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the VIC to NSW directional interconnector.
The negative residue constraint NRM_VIC1_NSW1 ceased operating at 0755 hrs on 30 July 2024.
This is an AEMO autogenerated Market Notice.
[EventId:202407300730_NRM_VIC1_NSW1_started] NEGRES CONSTRAINT NRM_VIC1_NSW1 started operating from 30 July 2024 07:30
Issued by Australian Energy Market Operator Ltd at 0730 hrs on 30 July 2024
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to NSW - 30 July 2024.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the VIC to NSW directional interconnector.
The negative residue constraint set NRM_VIC1_NSW1 commenced operating from 0730 hrs on 30 July 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.
Update - Non-credible contingency event - QLD region - 30/07/2024
Update - Non-credible contingency event - QLD region - 30/07/2024
Refer AEMO Electricity Market Notice 117503
The cause of this non credible contingency event is not known at this stage.
AEMO is not satisfied that this non credible event is unlikely to re-occur.
AEMO has therefore reclassified this event as a credible contingency event until further notice.
Region: QLD
Elements: Darling Downs Power Station
Duration: 0720 hrs until further notice
Constraint set(s) invoked: Q-DARLING_DOWNS_N-2
Manager NEM Real Time Operations
Non-credible contingency event - QLD region - 30/07/2024
Non-credible contingency event - QLD region - 30/07/2024
At 0537 hrs the Darling Downs Power Station GT1, GT3 and and the steam turbine tripped from 484 MW.
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
PDPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the TAS Region [beginning] on 29/07/2024
The Forecast LOR1 condition in the TAS region advised in AEMO Electricity Market Notice No. 117497 is cancelled at 0545 hrs 29/07/2024.
Manager NEM Real Time Operations
Update - Non-credible contingency event - QLD region - 27/07/2024
Update - Non-credible contingency event - QLD region - 27/07/2024
Refer AEMO Electricity Market Notice 117487
At 1702 hrs the H38 Goodna No. 2 275kV Bus and the H38 Goodna No. 1 275/132kV transformer 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
STPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the TAS Region on 31/07/2024
The Forecast LOR1 condition in the TAS region advised in AEMO Electricity Market Notice No. 117493 is cancelled at 1420 hrs 28/07/2024
No LOR condition is currently forecast in the STPASA period.
Manager NEM Real Time Operations