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118421MINIMUM SYSTEM LOAD24/09/2024 02:54:54 PM
Minimum System Load 1 (MSL1) in the VIC Region on 28/09/2024
AEMO ELECTRICITY MARKET NOTICE
AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the Victorian region from 1100 hrs to 1400 hrs 28/09/2024.
Minimum regional demand is forecast to be 1638 MW at 1300 hrs, and the advisory threshold is:
- MSL1 - 1865 MW
- MSL2 - 1365 MW
- MSL3 - 865 MW
MSL events are forecast when forecast regional demand is less than the relevant MSL threshold. The forecast regional demand is below the MSL1 threshold.
Refer to NEM Data Dashboard to monitor demand levels: https://aemo.com.au/energy-systems/electricity/national-electricity-market-nem/data-nem/data-dashboard-nem
AEMO is seeking a market response.
An insufficient market response may require AEMO to take action or intervene to maintain power system security in Victoria. This may result in actions such as recalling network outages, the direction of scheduled production units, curtailment of non-scheduled production units, and/or a direction to maintain regional demand above required MSL threshold, in both Victoria and South Australia.
AEMO Operations
AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the Victorian region from 1100 hrs to 1400 hrs 28/09/2024.
Minimum regional demand is forecast to be 1638 MW at 1300 hrs, and the advisory threshold is:
- MSL1 - 1865 MW
- MSL2 - 1365 MW
- MSL3 - 865 MW
MSL events are forecast when forecast regional demand is less than the relevant MSL threshold. The forecast regional demand is below the MSL1 threshold.
Refer to NEM Data Dashboard to monitor demand levels: https://aemo.com.au/energy-systems/electricity/national-electricity-market-nem/data-nem/data-dashboard-nem
AEMO is seeking a market response.
An insufficient market response may require AEMO to take action or intervene to maintain power system security in Victoria. This may result in actions such as recalling network outages, the direction of scheduled production units, curtailment of non-scheduled production units, and/or a direction to maintain regional demand above required MSL threshold, in both Victoria and South Australia.
AEMO Operations
118322POWER SYSTEM EVENTS19/09/2024 04:16:27 PM
Update - Non-credible contingency event - TAS region - 19/09/2024
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - TAS region - 19/09/2024
Refer AEMO Electricity Market Notice 118321
At 1446 hrs the Gordon - Chapel St No 1 and No 2 220 kV lines were returned to service.
This non-credible contingency event was caused by lightning. 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.
Manager NEM Real Time Operations
Update - Non-credible contingency event - TAS region - 19/09/2024
Refer AEMO Electricity Market Notice 118321
At 1446 hrs the Gordon - Chapel St No 1 and No 2 220 kV lines were returned to service.
This non-credible contingency event was caused by lightning. 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.
Manager NEM Real Time Operations
118321POWER SYSTEM EVENTS19/09/2024 03:28:41 PM
Update - Non-credible contingency event - TAS region - 19/09/2024
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - TAS region - 19/09/2024
At 1340 hrs the Gordon - Chapel St No1 and No 2 220 kV lines tripped.
AEMO did not instruct load shedding.
AEMO has advised of approximately 112 MW disconnection of bulk electrical load,
disconnection of generation at Studland Bay Wind generator (71 MW) and 23 MW generation reduction at Gordon Power station.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Update - Non-credible contingency event - TAS region - 19/09/2024
At 1340 hrs the Gordon - Chapel St No1 and No 2 220 kV lines tripped.
AEMO did not instruct load shedding.
AEMO has advised of approximately 112 MW disconnection of bulk electrical load,
disconnection of generation at Studland Bay Wind generator (71 MW) and 23 MW generation reduction at Gordon Power station.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
118320POWER SYSTEM EVENTS19/09/2024 01:54:59 PM
Non-credible contingency event - TAS region - 19/09/2024
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - TAS region - 19/09/2024
At 1340 hrs the Gordon - Chapel St No1 and No 2 220 kV lines tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Non-credible contingency event - TAS region - 19/09/2024
At 1340 hrs the Gordon - Chapel St No1 and No 2 220 kV lines tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
118301INTER-REGIONAL TRANSFER17/09/2024 12:21:32 PM
Inter-regional transfer limit variation -South East to Tailem Bend No 1 275 KV Line - SA region - 17/09/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - South East to Tailem Bend No 1 275 KV Line - SA region - 17/09/2024
At 1034 hrs 17/09/2024 there was a short notice outage of South East to Tailem Bend No 1 275 KV Line.
The following constraint set(s) invoked at 1035 hrs 20/09/2024
S-TBSE,
S-BC_CP
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA,NSW1-QLD1,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 - South East to Tailem Bend No 1 275 KV Line - SA region - 17/09/2024
At 1034 hrs 17/09/2024 there was a short notice outage of South East to Tailem Bend No 1 275 KV Line.
The following constraint set(s) invoked at 1035 hrs 20/09/2024
S-TBSE,
S-BC_CP
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA,NSW1-QLD1,T-V-MNSP1,V-S-MNSP1,VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
118271INTER-REGIONAL TRANSFER14/09/2024 01:26:46 PM
Inter-regional transfer limit variation - Braemar No2 330 kV / 275 kV Transformer. - QLD region - 14/09/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Braemar No2 330 kV / 275 kV Transformer. - QLD region - 14/09/2024
At 1320 hrs 14/09/2024 there was a short notice outage of Braemar No2 330 kV / 275 kV Transformer.
The following constraint set(s) invoked at 1320 hrs 14/09/2024
Q-BRTX2
This constraint set(s) contains equations with the following interconnectors on the LHS.
NSW1-QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Braemar No2 330 kV / 275 kV Transformer. - QLD region - 14/09/2024
At 1320 hrs 14/09/2024 there was a short notice outage of Braemar No2 330 kV / 275 kV Transformer.
The following constraint set(s) invoked at 1320 hrs 14/09/2024
Q-BRTX2
This constraint set(s) contains equations with the following interconnectors on the LHS.
NSW1-QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
118269INTER-REGIONAL TRANSFER13/09/2024 03:57:07 PM
Inter-regional transfer limit variation - Armidale - Sapphire 8E 330 KV Line - NSW region - 13/09/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Armidale - Sapphire 8E 330 KV Line - NSW region - 13/09/2024
A planned outage of Armidale - Sapphire 8E 330 KV Line in the NSW region was scheduled from 1630 hrs 11/09/2024 to 1330 hrs 14/09/2024.
The outage has been completed and Armidale - Sapphire 8E 330 KV Line returned to service at 1600 hrs 13/09/2024
Constraint set(s) revoked: N-ARSR_8E, N-TW_SVC
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Armidale - Sapphire 8E 330 KV Line - NSW region - 13/09/2024
A planned outage of Armidale - Sapphire 8E 330 KV Line in the NSW region was scheduled from 1630 hrs 11/09/2024 to 1330 hrs 14/09/2024.
The outage has been completed and Armidale - Sapphire 8E 330 KV Line returned to service at 1600 hrs 13/09/2024
Constraint set(s) revoked: N-ARSR_8E, N-TW_SVC
Manager NEM Real Time Operations
118261INTER-REGIONAL TRANSFER13/09/2024 11:39:13 AM
Inter-regional transfer limit variation - Armidale - Sapphire 8E 330 KV Line - NSW region - 13/09/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Armidale - Sapphire 8E 330 KV Line - NSW region - 13/09/2024
A planned outage of Armidale - Sapphire 8E 330 KV Line in the NSW region was scheduled from 1630 hrs 11/09/2024 to 1330 hrs 13/09/2024.
The outage has been rescheduled for 1630 hrs 11/09/2024 to 1330 hrs 14/09/2024.
Constraint sets invoked: N-ARSR_8E, N-TW_SVC, N-DM_SVC
This constraint set(s) contains equations with the following interconnectors on the LHS.
NSW1-QLD1,T-V-MNSP1,N-Q-MNSP1,V-S-MNSP1,V-SA
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Armidale - Sapphire 8E 330 KV Line - NSW region - 13/09/2024
A planned outage of Armidale - Sapphire 8E 330 KV Line in the NSW region was scheduled from 1630 hrs 11/09/2024 to 1330 hrs 13/09/2024.
The outage has been rescheduled for 1630 hrs 11/09/2024 to 1330 hrs 14/09/2024.
Constraint sets invoked: N-ARSR_8E, N-TW_SVC, N-DM_SVC
This constraint set(s) contains equations with the following interconnectors on the LHS.
NSW1-QLD1,T-V-MNSP1,N-Q-MNSP1,V-S-MNSP1,V-SA
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
118257SETTLEMENTS RESIDUE12/09/2024 04:55:27 PM
[EventId:202409121655_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 12 September 2024 16:55
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1655 hrs on 12 September 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 12 September 2024.
Refer to market notice: 118256
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 1655 hrs on 12 September 2024.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1655 hrs on 12 September 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 12 September 2024.
Refer to market notice: 118256
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 1655 hrs on 12 September 2024.
This is an AEMO autogenerated Market Notice.