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112379RECLASSIFY CONTINGENCY15/12/2023 12:58:05 PM
Reclassification of a Non-Credible Contingency Event: Armidale - Dumaresq 8C 330kV line and Armidale - Sapphire WF 8E 330kV line in NSW1 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: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Duration: 15/12/2023 12:58 until further notice
Constraint set(s) invoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
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: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Duration: 15/12/2023 12:58 until further notice
Constraint set(s) invoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Auto-generated on behalf of Manager NEM Real Time Operations
112378SETTLEMENTS RESIDUE15/12/2023 12:35:29 PM
[EventId:202312151235_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 15 December 2023 12:35
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1235 hrs on 15 December 2023
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 15 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 1235 hrs on 15 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 1235 hrs on 15 December 2023
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 15 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 1235 hrs on 15 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.
112377MARKET INTERVENTION15/12/2023 12:43:13 PM
Possible intervention to manage power system security in South Australia (SA) Region
AEMO ELECTRICITY MARKET NOTICE
Possible intervention to manage power system security in South Australia (SA) Region
The synchronous generating units currently expected to be synchronised in SA from 0700 hrs 16/12/2023 will be inadequate to maintain sufficient system strength in SA and hence a secure operating state.
AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA.
Manager NEM Real Time Operations
Possible intervention to manage power system security in South Australia (SA) Region
The synchronous generating units currently expected to be synchronised in SA from 0700 hrs 16/12/2023 will be inadequate to maintain sufficient system strength in SA and hence a secure operating state.
AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA.
Manager NEM Real Time Operations
112376SETTLEMENTS RESIDUE15/12/2023 12:00:38 PM
[EventId:202312151200_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 15 December 2023 12:00
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1200 hrs on 15 December 2023
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 15 December 2023.
Refer to market notice: 112372
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 1200 hrs on 15 December 2023.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1200 hrs on 15 December 2023
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 15 December 2023.
Refer to market notice: 112372
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 1200 hrs on 15 December 2023.
This is an AEMO autogenerated Market Notice.
112375RECLASSIFY CONTINGENCY15/12/2023 11:59:23 AM
Cancellation of a Non-Credible Contingency Event: Edmonton - Woree 7284 132 kV Line, Barron Gorge - Kamerunga 7143 132 kV Line and the Barron Gorge - Kamerunga 7184 132 kV Line in QLD Region
AEMO ELECTRICITY MARKET NOTICE
Cancellation of the reclassification of a Non-Credible contingency event as a Credible contingency event in the Qld region.
Based on the advice from the asset owner, AEMO considers the trip of the Edmonton - Woree 7284 132 kV Line , Barron Gorge - Kamerunga 7143 132 kV Line and the Barron Gorge - Kamerunga 7184 132 kV Line is no longer reasonably possible. Accordingly, its classification has reverted to a non-credible contingency event.
Region: QLD
Elements: Edmonton - Woree 7284 132 kV Line, Barron Gorge - Kamerunga 7143 132 kV Line and the Barron Gorge - Kamerunga 7184 132 kV Line
Cancellation time: 1200 hrs 15/12/2023
Constraint set(s) revoked: Nil
Refer AEMO Electricity Market Notice 102439
Manager NEM Real Time Operations
Cancellation of the reclassification of a Non-Credible contingency event as a Credible contingency event in the Qld region.
Based on the advice from the asset owner, AEMO considers the trip of the Edmonton - Woree 7284 132 kV Line , Barron Gorge - Kamerunga 7143 132 kV Line and the Barron Gorge - Kamerunga 7184 132 kV Line is no longer reasonably possible. Accordingly, its classification has reverted to a non-credible contingency event.
Region: QLD
Elements: Edmonton - Woree 7284 132 kV Line, Barron Gorge - Kamerunga 7143 132 kV Line and the Barron Gorge - Kamerunga 7184 132 kV Line
Cancellation time: 1200 hrs 15/12/2023
Constraint set(s) revoked: Nil
Refer AEMO Electricity Market Notice 102439
Manager NEM Real Time Operations
112374RECLASSIFY CONTINGENCY15/12/2023 11:29:56 AM
Cancellation of the Reclassification of a Non Credible Contingency event to a Credible Event - Kareeya Power Station - Qld Region
AEMO ELECTRICITY MARKET NOTICE
Cancellation of the reclassification of a Non-Credible contingency event as a Credible contingency event in the Qld region.
Based on the advice from the asset owner, AEMO considers the trip of the Kareeya Power Station Units 1,2,3 and 4 is no longer reasonably possible. Accordingly, its classification has reverted to a non-credible contingency event.
Region: QLD
Elements: Kareeya Power Station Units 1,2,3 and 4
Cancellation time: 1130 hrs 15/12/2023
Constraint set(s) revoked: Nil
Refer AEMO Electricity Market Notice 111965
Manager NEM Real Time Operations
Cancellation of the reclassification of a Non-Credible contingency event as a Credible contingency event in the Qld region.
Based on the advice from the asset owner, AEMO considers the trip of the Kareeya Power Station Units 1,2,3 and 4 is no longer reasonably possible. Accordingly, its classification has reverted to a non-credible contingency event.
Region: QLD
Elements: Kareeya Power Station Units 1,2,3 and 4
Cancellation time: 1130 hrs 15/12/2023
Constraint set(s) revoked: Nil
Refer AEMO Electricity Market Notice 111965
Manager NEM Real Time Operations
112373GENERAL NOTICE15/12/2023 10:10:57 AM
Network Augmentation Commissioned - SA Region - 15/12/2023
AEMO ELECTRICITY MARKET NOTICE
Network Augmentation Commissioned - SA Region - 15/12/2023
Commissioned:
Bundey 330kV substation, 330kV East Bus and 330kV West Bus.
Manager NEM Real Time Operations
Network Augmentation Commissioned - SA Region - 15/12/2023
Commissioned:
Bundey 330kV substation, 330kV East Bus and 330kV West Bus.
Manager NEM Real Time Operations
112372SETTLEMENTS RESIDUE15/12/2023 10:00:35 AM
[EventId:202312151000_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 15 December 2023 10:00
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1000 hrs on 15 December 2023
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 15 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 1000 hrs on 15 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 1000 hrs on 15 December 2023
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 15 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 1000 hrs on 15 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.
112371RESERVE NOTICE15/12/2023 09:42:01 AM
STPASA - Update to the Forecast Lack Of Reserve Level 2 (LOR2) in the NSW Region on 19/12/2023
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 112317 has been updated at 0900 hrs 15/12/2023 to the following:
From 1430 hrs to 1600 hrs 19/12/2023.
The forecast capacity reserve requirement is 730 MW.
The minimum capacity reserve available is 232 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.
AEMO Operations
The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 112317 has been updated at 0900 hrs 15/12/2023 to the following:
From 1430 hrs to 1600 hrs 19/12/2023.
The forecast capacity reserve requirement is 730 MW.
The minimum capacity reserve available is 232 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.
AEMO Operations