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116162POWER SYSTEM EVENTS17/04/2024 06:10:18 AM
Update - Non-credible contingency event - VIC region - 17/04/2024
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - VIC region - 17/04/2024
Refer AEMO Electricity Market Notice 116160
At 0610 hrs the Heywood No 2 500 kV bus was returned to service.
The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
Update - Non-credible contingency event - VIC region - 17/04/2024
Refer AEMO Electricity Market Notice 116160
At 0610 hrs the Heywood No 2 500 kV bus was returned to service.
The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
116161INTER-REGIONAL TRANSFER17/04/2024 04:53:11 AM
Inter-regional transfer limit variation - Heywood No 2 500 kV bus - VIC region - 17/04/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Heywood No 2 500 kV bus - VIC region - 17/04/2024
Refer market notice 116160
At 0414 hrs 17/04/2024 there was an unplanned outage of Heywood No 2 500 kV bus.
The following constraint set(s) invoked at 0430 hrs 17/04/2024
F-I-HYSE
S-X_BC_CP
V-HYTX_M12
V-HY_500BUS
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S-MNSP1, V-SA, T-V-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Heywood No 2 500 kV bus - VIC region - 17/04/2024
Refer market notice 116160
At 0414 hrs 17/04/2024 there was an unplanned outage of Heywood No 2 500 kV bus.
The following constraint set(s) invoked at 0430 hrs 17/04/2024
F-I-HYSE
S-X_BC_CP
V-HYTX_M12
V-HY_500BUS
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S-MNSP1, V-SA, T-V-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
116160POWER SYSTEM EVENTS17/04/2024 04:29:44 AM
Non-credible contingency event - VIC region - 17/04/2024
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - VIC region - 17/04/2024
At 0414 hrs the Heywood No 2 500 kV bus 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 - VIC region - 17/04/2024
At 0414 hrs the Heywood No 2 500 kV bus 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
116154INTER-REGIONAL TRANSFER16/04/2024 12:02:05 PM
Inter-regional transfer limit variation - constraint automation to manage Power System Security in SA region - 16/04/2024
AEMO ELECTRICITY MARKET NOTICE
In order to maintain the power system in a secure operating state in the SA region, AEMO has invoked automated constraint set CA_BRIS_55306556 from 1150 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
V-SA
Refer to AEMO Network Outage Scheduler (NOS) for further information.
Manager NEM Real Time Operations
In order to maintain the power system in a secure operating state in the SA region, AEMO has invoked automated constraint set CA_BRIS_55306556 from 1150 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
V-SA
Refer to AEMO Network Outage Scheduler (NOS) for further information.
Manager NEM Real Time Operations
116140INTER-REGIONAL TRANSFER15/04/2024 04:59:01 PM
Inter-regional transfer limit variation - Tamworth No1 SVC Protection system- NSW region - 15/04/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Tamworth No1 SVC Protection system - NSW region - 15/04/2024
At 1635 hrs 15/04/2024 there was a short notice outage of Tamworth No1 SVC protection system.
The following constraint set(s) invoked at 1650 hrs 15/04/2024
N-TW_SVC
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,NSW1-QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Tamworth No1 SVC Protection system - NSW region - 15/04/2024
At 1635 hrs 15/04/2024 there was a short notice outage of Tamworth No1 SVC protection system.
The following constraint set(s) invoked at 1650 hrs 15/04/2024
N-TW_SVC
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,NSW1-QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
116130INTER-REGIONAL TRANSFER15/04/2024 12:08:58 PM
Inter-regional transfer limit variation - Tamworth No1 SVC - NSW region - 15/04/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Tamworth No1 SVC - NSW region - 15/04/2024
At 1155 hrs 15/04/2024 there was an unplanned outage of Tamworth No1 SVC.
The following constraint set(s) invoked at 1200 hrs 15/04/2024
N-TW_SVC
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,NSW1-QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Tamworth No1 SVC - NSW region - 15/04/2024
At 1155 hrs 15/04/2024 there was an unplanned outage of Tamworth No1 SVC.
The following constraint set(s) invoked at 1200 hrs 15/04/2024
N-TW_SVC
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,NSW1-QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
116125INTER-REGIONAL TRANSFER15/04/2024 07:11:32 AM
Inter-regional transfer limit variation - Armidale 1 330kV SVC - NSW region - 15/04/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Armidale 1 330kV SVC - NSW region - 15/04/2024
A planned outage of Armidale 1 330kV SVC in the NSW region was scheduled from 0700 hrs 15/04/2024 to 1500 hrs 20/04/2024.
The outage has been cancelled at 0700 hrs 15/04/2024
Constraint set(s) revoked: N-AR_VC1
This constraint set(s) contains equations with the following interconnectors on the LHS:
N-Q-MNSP1
NSW1-QLD1
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Armidale 1 330kV SVC - NSW region - 15/04/2024
A planned outage of Armidale 1 330kV SVC in the NSW region was scheduled from 0700 hrs 15/04/2024 to 1500 hrs 20/04/2024.
The outage has been cancelled at 0700 hrs 15/04/2024
Constraint set(s) revoked: N-AR_VC1
This constraint set(s) contains equations with the following interconnectors on the LHS:
N-Q-MNSP1
NSW1-QLD1
Manager NEM Real Time Operations
116119PRICES UNCHANGED14/04/2024 09:14:28 AM
[EventId:202404140850_confirmed] Prices for interval 14-Apr-2024 08:50 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 0910 hrs on 14 April 2024
PRICES ARE NOW CONFIRMED for trading interval 14-Apr-2024 08:50.
In accordance with Market Notice 116109 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply
Prices remain unchanged.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 0910 hrs on 14 April 2024
PRICES ARE NOW CONFIRMED for trading interval 14-Apr-2024 08:50.
In accordance with Market Notice 116109 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply
Prices remain unchanged.
This is an AEMO autogenerated Market Notice.
116118PRICES UNCHANGED14/04/2024 09:13:29 AM
[EventId:202404140910_confirmed] Prices for interval 14-Apr-2024 09:10 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 0910 hrs on 14 April 2024
PRICES ARE NOW CONFIRMED for trading interval 14-Apr-2024 09:10.
In accordance with Market Notice 116113 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply
Prices remain unchanged.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 0910 hrs on 14 April 2024
PRICES ARE NOW CONFIRMED for trading interval 14-Apr-2024 09:10.
In accordance with Market Notice 116113 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply
Prices remain unchanged.
This is an AEMO autogenerated Market Notice.