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116243PRICES UNCHANGED22/04/2024 08:35:15 AM
[EventId:202404220820_confirmed] Prices for interval 22-Apr-2024 08:20 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 0835 hrs on 22 April 2024
PRICES ARE NOW CONFIRMED for trading interval 22-Apr-2024 08:20.
In accordance with Market Notice 116238 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 0835 hrs on 22 April 2024
PRICES ARE NOW CONFIRMED for trading interval 22-Apr-2024 08:20.
In accordance with Market Notice 116238 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.
116242PRICES UNCHANGED22/04/2024 08:36:19 AM
[EventId:202404220815_confirmed] Prices for interval 22-Apr-2024 08:15 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 0835 hrs on 22 April 2024
PRICES ARE NOW CONFIRMED for trading interval 22-Apr-2024 08:15.
In accordance with Market Notice 116237 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 0835 hrs on 22 April 2024
PRICES ARE NOW CONFIRMED for trading interval 22-Apr-2024 08:15.
In accordance with Market Notice 116237 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.
116209INTER-REGIONAL TRANSFER20/04/2024 12:10:41 AM
Inter-regional transfer limit variation - Tailem Bend 275 kV Capacitor - SA region - 19/04/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Tailem Bend 275 kV Capacitor - SA region - 19/04/2024
At 2341 hrs 19/04/2024 there was an unplanned outage of the Tailem Bend 275 kV Capacitor.
The following constraint set(s) invoked at 0005 hrs 20/04/2024
S-TBCP1
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Tailem Bend 275 kV Capacitor - SA region - 19/04/2024
At 2341 hrs 19/04/2024 there was an unplanned outage of the Tailem Bend 275 kV Capacitor.
The following constraint set(s) invoked at 0005 hrs 20/04/2024
S-TBCP1
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
116208INTER-REGIONAL TRANSFER19/04/2024 05:09:45 PM
Inter-regional transfer limit variation - Murraylink interconnector - VIC and SA regions - 19/04/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Murraylink interconnector - VIC and SA regions - 19/04/2024
A planned outage of Murraylink interconnector was scheduled from 0800 hrs 24/03/2024 to 1700 hrs 27/04/2024.
The outage has been completed and Murraylink interconnector returned to service at 1710 hrs 19/04/2024
Constraint set(s) revoked: I-MURRAYLINK
This constraint set(s) contains equations with the following interconnectors on the LHS.
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 - Murraylink interconnector - VIC and SA regions - 19/04/2024
A planned outage of Murraylink interconnector was scheduled from 0800 hrs 24/03/2024 to 1700 hrs 27/04/2024.
The outage has been completed and Murraylink interconnector returned to service at 1710 hrs 19/04/2024
Constraint set(s) revoked: I-MURRAYLINK
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S-MNSP1
VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
116196INTER-REGIONAL TRANSFER18/04/2024 07:05:27 PM
Inter-regional transfer limit variation - Tamworth No1 SVC Protection system- NSW region - 18/04/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Tamworth No1 SVC Protection system - NSW region - 18/04/2024
At 1900 hrs 18/04/2024 there was a short notice outage of Tamworth No1 SVC protection system.
The following constraint set(s) invoked at 1900 hrs 18/04/2024
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 - 18/04/2024
At 1900 hrs 18/04/2024 there was a short notice outage of Tamworth No1 SVC protection system.
The following constraint set(s) invoked at 1900 hrs 18/04/2024
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
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