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[EventId:202408151930_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 15 August 2024 19:30
Issued by Australian Energy Market Operator Ltd at 1930 hrs on 15 August 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 15 August 2024.
Refer to market notice: 117686
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 1930 hrs on 15 August 2024.
This is an AEMO autogenerated Market Notice.
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: 15/08/2024 19:14
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 117683
Auto-generated on behalf of Manager NEM Real Time Operations
[EventId:202408151900_NRM_QLD1_NSW1_stopped] NEGRES CONSTRAINT NRM_QLD1_NSW1 ceased operating from 15 August 2024 19:00
Issued by Australian Energy Market Operator Ltd at 1900 hrs on 15 August 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - QLD to NSW - 15 August 2024.
Refer to market notice: 117685
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the QLD to NSW directional interconnector.
The negative residue constraint NRM_QLD1_NSW1 ceased operating at 1900 hrs on 15 August 2024.
This is an AEMO autogenerated Market Notice.
[EventId:202408151805_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 15 August 2024 18:05
Issued by Australian Energy Market Operator Ltd at 1805 hrs on 15 August 2024
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 15 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 1805 hrs on 15 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:202408151800_NRM_QLD1_NSW1_started] NEGRES CONSTRAINT NRM_QLD1_NSW1 started operating from 15 August 2024 18:00
Issued by Australian Energy Market Operator Ltd at 1800 hrs on 15 August 2024
ACTUAL NEGATIVE SETTLEMENT RESIDUES - QLD to NSW - 15 August 2024.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the QLD to NSW directional interconnector.
The negative residue constraint set NRM_QLD1_NSW1 commenced operating from 1800 hrs on 15 August 2024.
This constraint set contains an equation with the following interconnectors on the LHS:
N-Q-MNSP1
NSW1-QLD1
The RHS of the constraint equation may be adjusted to manage residues.
This is an AEMO autogenerated Market Notice.
Reclassification of a Non-Credible Contingency Event: Palmerston - Hadspen 3 & 4 110kV line and 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: Palmerston - Hadspen 3 & 4 110kV and
Duration: 15/08/2024 17:11 until further notice
Constraint set(s) invoked:
T-HAPM_110_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation: Reclassification of non-credible contingency event due to existence of widespread abnormal condition - NEM region.
AEMO considers the occurrence of a non-credible contingency event due to the widespread abnormal conditions advised in AEMO Electricity Market Notice 117660 is no longer reasonably possible and accordingly its classification has reverted to non-credible.
Cancellation time: 0845hrs 14/08/2024.
No constraints were invoked during this event
Manager NEM Real Time Operations
Planned outage of Nebo to Broadsound no. 8846 275 kV line in the QLD region beginning on 16/08/2024
The Nebo to Broadsound no. 8846 275 kV line in the Queensland (QLD) region is planned to be out of service from 0600 hrs 16/08/2024 to 1700 hrs 18/08/2024.
This outage is considered a High Impact Outage (HIO) as the outage recall is greater than 30 minutes.
A credible contingency event during this planned outage may require market intervention, such as the issuing of directions.
Refer AEMO Network Outage Schedule (NOS) for further details.
AEMO Operations
[EventId:202408131120_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 13 August 2024 11:20
Issued by Australian Energy Market Operator Ltd at 1120 hrs on 13 August 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 13 August 2024.
Refer to market notice: 117661
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 1120 hrs on 13 August 2024.
This is an AEMO autogenerated Market Notice.