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Reclassification of a Non-Credible Contingency Event: Eildon PS - Mt Beauty No.1 220 kV line and Eildon PS - Mt Beauty No.2 220 kV line in VIC1 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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Duration: 26/11/2024 04:08 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of a Non-Credible Contingency Event: Eildon PS - Mt Beauty No.1 220 kV line and Eildon PS - Mt Beauty No.2 220 kV line in VIC1 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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Cancellation time: 26/11/2024 03:54
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 120948
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event: Eildon PS - Mt Beauty No.1 220 kV line and Eildon PS - Mt Beauty No.2 220 kV line in VIC1 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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Duration: 26/11/2024 02:52 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE Region NSW1 Monday, 25 November 2024
NON-CONFORMANCE NSW1 Region Monday, 25 November 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: WTAHB1
Duration: 25/11/2024 11:55 to 25/11/2024 12:30
Amount: -142 MW
Constraint: NC-N_WTAHB1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE Region QLD1 Sunday, 24 November 2024
NON-CONFORMANCE QLD1 Region Sunday, 24 November 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: MPP_1
Duration: 24/11/2024 19:00 to 24/11/2024 19:45
Amount: 13 MW
Constraint: NC-Q_MPP_1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE Region QLD1 Sunday, 24 November 2024
NON-CONFORMANCE QLD1 Region Sunday, 24 November 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: WHITSF1
Duration: 24/11/2024 09:25 to 24/11/2024 10:35
Amount: 53 MW
Constraint: NC-Q_WHITSF1
Auto-generated on behalf of Manager NEM Real Time Operations
[EventId:202411231900_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 23 November 2024 19:00
Issued by Australian Energy Market Operator Ltd at 1900 hrs on 23 November 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 23 November 2024.
Refer to market notice: 120871
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 1900 hrs on 23 November 2024.
This is an AEMO autogenerated Market Notice.
[EventId:202411231840_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 23 November 2024 18:40
Issued by Australian Energy Market Operator Ltd at 1840 hrs on 23 November 2024
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 23 November 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 1840 hrs on 23 November 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:202411231815_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 23 November 2024 18:15
Issued by Australian Energy Market Operator Ltd at 1815 hrs on 23 November 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 23 November 2024.
Refer to market notice: 120869
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 1815 hrs on 23 November 2024.
This is an AEMO autogenerated Market Notice.