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112922RECLASSIFY CONTINGENCY30/12/2023 03:12:44 PM
Reclassification of a Non-Credible Contingency Event: Ross - Chalumbin No.857 275 kV line and Ross - Chalumbin No.858 275 kV line in QLD1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
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: QLD1
Lines: Ross - Chalumbin No.857 275 kV and Ross - Chalumbin No.858 275 kV
Duration: 30/12/2023 15:12 until further notice
Constraint set(s) invoked:
Q-RSCH_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
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: QLD1
Lines: Ross - Chalumbin No.857 275 kV and Ross - Chalumbin No.858 275 kV
Duration: 30/12/2023 15:12 until further notice
Constraint set(s) invoked:
Q-RSCH_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
112921SETTLEMENTS RESIDUE30/12/2023 03:05:26 PM
[EventId:202312301505_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 30 December 2023 15:05
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1505 hrs on 30 December 2023
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 30 December 2023.
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 December 2023.
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 December 2023
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 30 December 2023.
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 December 2023.
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.
112918SETTLEMENTS RESIDUE30/12/2023 02:00:21 PM
[EventId:202312301400_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 30 December 2023 14:00
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1400 hrs on 30 December 2023
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 30 December 2023.
Refer to market notice: 112915
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 1400 hrs on 30 December 2023.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1400 hrs on 30 December 2023
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 30 December 2023.
Refer to market notice: 112915
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 1400 hrs on 30 December 2023.
This is an AEMO autogenerated Market Notice.
112916NON-CONFORMANCE30/12/2023 01:05:12 PM
NON-CONFORMANCE Region NSW1 Saturday, 30 December 2023
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE NSW1 Region Saturday, 30 December 2023
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: NEWENSF2
Duration: 30/12/2023 12:50 to 30/12/2023 13:05
Amount: 163 MW
Constraint: NC-N_NEWENSF2
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE NSW1 Region Saturday, 30 December 2023
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: NEWENSF2
Duration: 30/12/2023 12:50 to 30/12/2023 13:05
Amount: 163 MW
Constraint: NC-N_NEWENSF2
Auto-generated on behalf of Manager NEM Real Time Operations
112915SETTLEMENTS RESIDUE30/12/2023 12:30:24 PM
[EventId:202312301230_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 30 December 2023 12:30
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1230 hrs on 30 December 2023
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 30 December 2023.
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 1230 hrs on 30 December 2023.
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 1230 hrs on 30 December 2023
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 30 December 2023.
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 1230 hrs on 30 December 2023.
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.
112914SETTLEMENTS RESIDUE30/12/2023 10:00:16 AM
[EventId:202312301000_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 30 December 2023 10:00
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1000 hrs on 30 December 2023
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 30 December 2023.
Refer to market notice: 112912
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 1000 hrs on 30 December 2023.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1000 hrs on 30 December 2023
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 30 December 2023.
Refer to market notice: 112912
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 1000 hrs on 30 December 2023.
This is an AEMO autogenerated Market Notice.
112913RECLASSIFY CONTINGENCY30/12/2023 04:43:14 PM
Cancellation of the reclassification of a Non-Credible Contingency Event: H14 Middle Ridge No. 2 and No. 3 275/110 kV transformers in Qld Region due to lighting
AEMO ELECTRICITY MARKET NOTICE.
Cancellation of the 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 elements. Accordingly its classification has reverted to a non-credible contingency event.
Region: QLD
Elements: H14 Middle Ridge No. 2 and No. 3 275/110 kV transformers
Cancellation time: 1645 hrs 30/12/2023
Constraint set(s) revoked: Q-MR_TX2_3_N-2
Refer AEMO Electricity Market Notice 112911
Manager NEM Real Time Operations
Cancellation of the 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 elements. Accordingly its classification has reverted to a non-credible contingency event.
Region: QLD
Elements: H14 Middle Ridge No. 2 and No. 3 275/110 kV transformers
Cancellation time: 1645 hrs 30/12/2023
Constraint set(s) revoked: Q-MR_TX2_3_N-2
Refer AEMO Electricity Market Notice 112911
Manager NEM Real Time Operations
112912SETTLEMENTS RESIDUE30/12/2023 09:00:28 AM
[EventId:202312300900_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 30 December 2023 09:00
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 0900 hrs on 30 December 2023
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 30 December 2023.
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 0900 hrs on 30 December 2023.
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 0900 hrs on 30 December 2023
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 30 December 2023.
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 0900 hrs on 30 December 2023.
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.
112911RECLASSIFY CONTINGENCY30/12/2023 09:09:04 AM
Reclassification of a Non-Credible Contingency Event: H14 Middle Ridge No. 2 and No. 3 275/110 kV transformers in Qld Region due to lighting
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to lightning.
AEMO considers the simultaneous trip of the following elements to now be reasonably possible. Accordingly AEMO has reclassified it as a non-credible contingency event.
Region: QLD1
Elements: H14 Middle Ridge No. 2 and No. 3 275/110 kV transformers
Duration: 30/12/2023 08:50 until further notice
Constraint set(s) invoked: Q-MR_TX2_3_N-2
Constraint set contains the following interconnector(s) on the left hand side : Nil
Manager NEM Real Time Operations
AEMO considers the simultaneous trip of the following elements to now be reasonably possible. Accordingly AEMO has reclassified it as a non-credible contingency event.
Region: QLD1
Elements: H14 Middle Ridge No. 2 and No. 3 275/110 kV transformers
Duration: 30/12/2023 08:50 until further notice
Constraint set(s) invoked: Q-MR_TX2_3_N-2
Constraint set contains the following interconnector(s) on the left hand side : Nil
Manager NEM Real Time Operations