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107160POWER SYSTEM EVENTS02/04/2023 09:46:00 AM
Non-credible contingency event - Qld region - 01/04/2023
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - Qld region - 01/04/2023
At 1950 hrs 01/04/2023 there was an unplanned outage of Unit 5 and Unit 7 at H48 Braemar 2 Power Station.
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 - Qld region - 01/04/2023
At 1950 hrs 01/04/2023 there was an unplanned outage of Unit 5 and Unit 7 at H48 Braemar 2 Power Station.
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
107152POWER SYSTEM EVENTS01/04/2023 09:52:09 PM
Non-credible contingency event - Qld region - 01/04/2023
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - Qld region - 01/04/2023
At 2109 hrs ,
- Feeder 877 Woree -Tumoulin 275 kV - tripped and auto reclosed
- Feeder 7166 Chalumbin - Turkinje 132 kV - Tripped and auto reclosed
- Feeder 7143 Kamerunga - Barron Gorge - Tripped
AEMO did not instruct load shedding.
AEMO was advised of disconnection of bulk electrical load of 30 MW.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Non-credible contingency event - Qld region - 01/04/2023
At 2109 hrs ,
- Feeder 877 Woree -Tumoulin 275 kV - tripped and auto reclosed
- Feeder 7166 Chalumbin - Turkinje 132 kV - Tripped and auto reclosed
- Feeder 7143 Kamerunga - Barron Gorge - Tripped
AEMO did not instruct load shedding.
AEMO was advised of disconnection of bulk electrical load of 30 MW.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
107032POWER SYSTEM EVENTS27/03/2023 04:23:28 PM
Update - Non-credible contingency event - TAS region - 27/03/2023
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - TAS region - 27/03/2023
Refer AEMO Electricity market notice 106999
At 1040 hrs the Sheffield - Palmerston 220kV line tripped at the Palmerston end only.
The cause of this non credible contingency event is not known at this stage.
AEMO is not satisfied that this non credible event is unlikely to re-occur.
AEMO has therefore reclassified this event as a credible contingency event until further notice.
Region: Tas
Duration: 1227/03/2023 16:20 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations
Update - Non-credible contingency event - TAS region - 27/03/2023
Refer AEMO Electricity market notice 106999
At 1040 hrs the Sheffield - Palmerston 220kV line tripped at the Palmerston end only.
The cause of this non credible contingency event is not known at this stage.
AEMO is not satisfied that this non credible event is unlikely to re-occur.
AEMO has therefore reclassified this event as a credible contingency event until further notice.
Region: Tas
Duration: 1227/03/2023 16:20 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations
106999POWER SYSTEM EVENTS27/03/2023 12:27:13 PM
Non-credible contingency event - TAS region - 27/03/2023
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - TAS region - 27/03/2023
At 1040 hrs the Sheffield - Palmerston 220kV line tripped at the Palmerston end only.
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 - 27/03/2023
At 1040 hrs the Sheffield - Palmerston 220kV line tripped at the Palmerston end only.
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
106896POWER SYSTEM EVENTS23/03/2023 11:32:12 AM
Non-credible contingency event - SA region - 23/03/2023
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - SA region - 23/03/2023
At 1113 hrs the South East SVC 1 and SVC 2 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 - SA region - 23/03/2023
At 1113 hrs the South East SVC 1 and SVC 2 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
106842PRICE ADJUSTMENT20/03/2023 11:45:58 AM
[EventId:202303172015_confirmed] Prices for interval 17-Mar-2023 20:15 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1145 hrs on 20 March 2023
PRICES ARE NOW CONFIRMED for trading interval 17-Mar-2023 20:15.
In accordance with Market Notice AEMO has reviewed this trading interval and determined that:
Changed Prices ($/MWh)
TYPE
Region Original Adjusted
Price Price
ENERGY
NSW1 $254.92 $119.81
QLD1 $270.00 $128.22
VIC1 $222.69 $113.45
LOWER5MIN
NSW1 $0.39 $0.50
LOWER60SEC
NSW1 $0.39 $0.80
LOWER6SEC
NSW1 $0.19 $0.38
LOWERREG
NSW1 $3.98 $4.14
RAISE5MIN
NSW1 $0.69 $0.62
RAISE60SEC
NSW1 $39.00 $2.36
RAISE6SEC
NSW1 $127.88 $4.90
RAISEREG
NSW1 $167.27 $14.74
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1145 hrs on 20 March 2023
PRICES ARE NOW CONFIRMED for trading interval 17-Mar-2023 20:15.
In accordance with Market Notice
Changed Prices ($/MWh)
TYPE
Region Original Adjusted
Price Price
ENERGY
NSW1 $254.92 $119.81
QLD1 $270.00 $128.22
VIC1 $222.69 $113.45
LOWER5MIN
NSW1 $0.39 $0.50
LOWER60SEC
NSW1 $0.39 $0.80
LOWER6SEC
NSW1 $0.19 $0.38
LOWERREG
NSW1 $3.98 $4.14
RAISE5MIN
NSW1 $0.69 $0.62
RAISE60SEC
NSW1 $39.00 $2.36
RAISE6SEC
NSW1 $127.88 $4.90
RAISEREG
NSW1 $167.27 $14.74
This is an AEMO autogenerated Market Notice.
106658PRICE ADJUSTMENT15/03/2023 03:07:21 PM
[EventId:202303141455_confirmed] Prices for interval 14-Mar-2023 14:55 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1507 hrs on 15 March 2023
PRICES ARE NOW CONFIRMED for trading interval 14-Mar-2023 14:55.
In accordance with Market Notice 106608 AEMO has reviewed this trading interval and determined that:
- Over-Constrained Dispatch has been resolved for this interval
Changed Prices ($/MWh)
TYPE
Region Original Adjusted
Price Price
RAISEREG
TAS1 $5.68 $42.74
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1507 hrs on 15 March 2023
PRICES ARE NOW CONFIRMED for trading interval 14-Mar-2023 14:55.
In accordance with Market Notice 106608 AEMO has reviewed this trading interval and determined that:
- Over-Constrained Dispatch has been resolved for this interval
Changed Prices ($/MWh)
TYPE
Region Original Adjusted
Price Price
RAISEREG
TAS1 $5.68 $42.74
This is an AEMO autogenerated Market Notice.
105822POWER SYSTEM EVENTS13/02/2023 02:34:40 PM
Non-credible contingency event - Qld Region - 13/02/2023
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - Qld Region - 13/02/2023
At 1402 hrs 13/02/2023 the H77 Columboola - H76 Wandoan South No. 8891 and No. 8892 275 kV Lines tripped, also affecting supply west of H79 Yuleba North and H80 Eurombah.
AEMO did not instruct load shedding.
Approximately 390 MW of Load interrupted and 114 MW of Generation interrupted.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Non-credible contingency event - Qld Region - 13/02/2023
At 1402 hrs 13/02/2023 the H77 Columboola - H76 Wandoan South No. 8891 and No. 8892 275 kV Lines tripped, also affecting supply west of H79 Yuleba North and H80 Eurombah.
AEMO did not instruct load shedding.
Approximately 390 MW of Load interrupted and 114 MW of Generation interrupted.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
105653POWER SYSTEM EVENTS06/02/2023 09:39:29 AM
Non-credible contingency event - Qld Region - 03/02/2023
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - Qld Region - 03/02/2023
At 1722 hrs 03/02/2023 the Kareeya Power Station Unit 1, Unit 2 and Unit 4 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 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
Non-credible contingency event - Qld Region - 03/02/2023
At 1722 hrs 03/02/2023 the Kareeya Power Station Unit 1, Unit 2 and Unit 4 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 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