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116915MARKET INTERVENTION09/06/2024 02:19:23 PM
Update - Possible intervention to manage power system security in SA region
AEMO ELECTRICITY MARKET NOTICE
Update - Possible intervention to manage power system security in SA region
Refer AEMO Electricity Market Notice 116914
The synchronous generating units currently expected to be synchronised in SA from 1000 hrs 10/06/2024 will be inadequate to maintain a secure operating state in SA .
AEMO estimates that, in the absence of sufficient market response by 1600 hrs 09/06/2024, 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
Update - Possible intervention to manage power system security in SA region
Refer AEMO Electricity Market Notice 116914
The synchronous generating units currently expected to be synchronised in SA from 1000 hrs 10/06/2024 will be inadequate to maintain a secure operating state in SA .
AEMO estimates that, in the absence of sufficient market response by 1600 hrs 09/06/2024, 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
116914MARKET INTERVENTION09/06/2024 12:37:49 PM
Possible intervention to manage power system security in SA region
AEMO ELECTRICITY MARKET NOTICE
Possible intervention to manage power system security in SA region
The synchronous generating units currently expected to be synchronised in SA from 1000 hrs 10/06/2024 will be inadequate to maintain a secure operating state in SA .
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 SA region
The synchronous generating units currently expected to be synchronised in SA from 1000 hrs 10/06/2024 will be inadequate to maintain a secure operating state in SA .
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
116907INTER-REGIONAL TRANSFER07/06/2024 07:56:38 AM
Inter-Regional Transfer limit variation - Outage Cancelled - Planned outage of Moorabool - Mortlake No.2 500 kV Line in Vic region on 7 June 2024.
AEMO ELECTRICITY MARKET NOTICE
The Moorabool - Mortlake No.2 500kV Line in Victoria (VIC) region was planned to be on an outage on 07/06/2024. This outage has been withdrawn by the TNSP.
Constraint sets associated with this outage have been revoked.
I-VS+LKB_050, I-VS_050, V-MLMO
These constraint sets contains equations with the following interconnectors on the LHS.
V-SA, VIC1-NSW1, T-V-MNSP1, V-S-MNSP1
Refer to the AEMO Network Outage Scheduler (NOS) for further information.
Manager NEM Real Time Operations
The Moorabool - Mortlake No.2 500kV Line in Victoria (VIC) region was planned to be on an outage on 07/06/2024. This outage has been withdrawn by the TNSP.
Constraint sets associated with this outage have been revoked.
I-VS+LKB_050, I-VS_050, V-MLMO
These constraint sets contains equations with the following interconnectors on the LHS.
V-SA, VIC1-NSW1, T-V-MNSP1, V-S-MNSP1
Refer to the AEMO Network Outage Scheduler (NOS) for further information.
Manager NEM Real Time Operations
116906INTER-REGIONAL TRANSFER07/06/2024 04:39:57 AM
Inter-regional transfer limit variation - Heywood - Tarrone No.1 500kV line - VIC region - 07/06/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Heywood - Tarrone No.1 500kV line - VIC region - 07/06/2024
At 0406 hrs 07/06/2024 there was an unplanned outage of Heywood - Tarrone No.1 500kV line
The following constraint set(s) invoked at 0415 hrs 07/06/2024
V-HYTR
This constraint set(s) contains equations with the following interconnectors on the LHS.
NSW1-QLD1, T-V-MNSP1, V-S-MNSP1, V-SA, VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Heywood - Tarrone No.1 500kV line - VIC region - 07/06/2024
At 0406 hrs 07/06/2024 there was an unplanned outage of Heywood - Tarrone No.1 500kV line
The following constraint set(s) invoked at 0415 hrs 07/06/2024
V-HYTR
This constraint set(s) contains equations with the following interconnectors on the LHS.
NSW1-QLD1, T-V-MNSP1, V-S-MNSP1, V-SA, VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
116904INTER-REGIONAL TRANSFER06/06/2024 02:29:13 PM
Inter-Regional Transfer limit variation - Directlink - NSW Region
AEMO ELECTRICITY MARKET NOTICE
Inter-Regional Transfer limit variation - Directlink - NSW Region
There has been an unplanned outage of the No 1 Leg of Directlink, with the No.2 Leg of Directlink previously out-of-service.
The following constraint set was invoked at 1425 hrs 06/06/2024
N-X_MBTE_2
The constraint set contains the following interconnector on the left hand side.
N-Q-MNSP1
Refer AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
Inter-Regional Transfer limit variation - Directlink - NSW Region
There has been an unplanned outage of the No 1 Leg of Directlink, with the No.2 Leg of Directlink previously out-of-service.
The following constraint set was invoked at 1425 hrs 06/06/2024
N-X_MBTE_2
The constraint set contains the following interconnector on the left hand side.
N-Q-MNSP1
Refer AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
116903RECLASSIFY CONTINGENCY06/06/2024 01:34:54 PM
Cancellation 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
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: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Cancellation time: 06/06/2024 13:34
Constraint set(s) revoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Refer AEMO Electricity Market Notice 116902
Auto-generated on behalf of Manager NEM Real Time Operations
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: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Cancellation time: 06/06/2024 13:34
Constraint set(s) revoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Refer AEMO Electricity Market Notice 116902
Auto-generated on behalf of Manager NEM Real Time Operations
116902RECLASSIFY CONTINGENCY06/06/2024 12:31:05 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: 06/06/2024 12:30 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: 06/06/2024 12:30 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
116901INTER-REGIONAL TRANSFER06/06/2024 11:22:44 AM
Inter-regional transfer limit variation - Tarrone K1 500/132 kV Transformer - VIC region - 06/06/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Tarrone K1 500/132 kV Transformer - VIC region - 06/06/2024
At 1058 hrs 06/06/2024 there was an unplanned outage of Tarrone K1 500/132 kV Transformer.
The following constraint set(s) invoked at 1115 hrs 06/06/2024
V-TRTS_BUS_CB_500
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1,V-S-MNSP1,VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Tarrone K1 500/132 kV Transformer - VIC region - 06/06/2024
At 1058 hrs 06/06/2024 there was an unplanned outage of Tarrone K1 500/132 kV Transformer.
The following constraint set(s) invoked at 1115 hrs 06/06/2024
V-TRTS_BUS_CB_500
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1,V-S-MNSP1,VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
116900INTER-REGIONAL TRANSFER06/06/2024 08:05:12 AM
Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region)
AEMO ELECTRICITY MARKET NOTICE
Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region)
AEMO has been notified that the controls to vary Directlink output are unavailable until further notice.
Constraint set I-CTRL_ISSUE_TE invoked from 0805 hrs.
The constraint set contains equations with the following interconnector on the LHS:
N-Q-MNSP1
Refer AEMO Network Outage Scheduler (NOS) for further details
Manager NEM Real Time Operations
Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region)
AEMO has been notified that the controls to vary Directlink output are unavailable until further notice.
Constraint set I-CTRL_ISSUE_TE invoked from 0805 hrs.
The constraint set contains equations with the following interconnector on the LHS:
N-Q-MNSP1
Refer AEMO Network Outage Scheduler (NOS) for further details
Manager NEM Real Time Operations