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124047CONSTRAINTS04/02/2025 09:32:40 AM
Update to system strength requirements in North Queensland
AEMO ELECTRICITY MARKET NOTICE
Refer to market notice 121468
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
The system normal equations have been revised to remove Gladstone >=1 requirement.
A revision to the constraint equations will be implemented at 1200 hrs on Tuesday 4th February 2025.
The new combinations have now published in a limits advice document on AEMO's website. For more information refer to the new limits advice: https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice
This advice contains all the combinations for Queensland for system normal cases. Additional information has been included in the limit advice to clarify the requirement to disconnect all inverters/turbines under certain system conditions.
The constraint equation in the Q-NIL set of the form below will be modified:
-Q_NIL_STRGTH_xxxx
-Q_NIL_STRGTH_xxxx_I
AEMO Operations
Refer to market notice 121468
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
The system normal equations have been revised to remove Gladstone >=1 requirement.
A revision to the constraint equations will be implemented at 1200 hrs on Tuesday 4th February 2025.
The new combinations have now published in a limits advice document on AEMO's website. For more information refer to the new limits advice: https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice
This advice contains all the combinations for Queensland for system normal cases. Additional information has been included in the limit advice to clarify the requirement to disconnect all inverters/turbines under certain system conditions.
The constraint equation in the Q-NIL set of the form below will be modified:
-Q_NIL_STRGTH_xxxx
-Q_NIL_STRGTH_xxxx_I
AEMO Operations
124044POWER SYSTEM EVENTS03/02/2025 02:13:15 PM
Update - Non-credible contingency event - TAS region - 03/02/2025
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - TAS region - 03/02/2025
Refer AEMO Electricity Market Notice 124043
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
Elements: Farrell - Reece No.1 and No.2 220 kV lines
Duration: 1410 hrs 03/02/2025 until further notice
Constraint set(s) invoked: F-T-FARE_N-2
Manager NEM Real Time Operations
Update - Non-credible contingency event - TAS region - 03/02/2025
Refer AEMO Electricity Market Notice 124043
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
Elements: Farrell - Reece No.1 and No.2 220 kV lines
Duration: 1410 hrs 03/02/2025 until further notice
Constraint set(s) invoked: F-T-FARE_N-2
Manager NEM Real Time Operations
124043POWER SYSTEM EVENTS03/02/2025 02:02:24 PM
Non-credible contingency event - TAS region - 03/02/2025
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - TAS region - 03/02/2025
At 1333 hrs the Farrell - Reece No.1 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 has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
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 - 03/02/2025
At 1333 hrs the Farrell - Reece No.1 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 has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
123949PRICES UNCHANGED30/01/2025 07:12:37 PM
[EventId:202501301815_confirmed] Prices for interval 30-Jan-2025 18:15 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1835 hrs on 30 January 2025
PRICES ARE NOW CONFIRMED for trading interval 30-Jan-2025 18:15.
In accordance with Market Notice 123939 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 1835 hrs on 30 January 2025
PRICES ARE NOW CONFIRMED for trading interval 30-Jan-2025 18:15.
In accordance with Market Notice 123939 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.
123948PRICES UNCHANGED30/01/2025 07:06:46 PM
[EventId:202501301835_confirmed] Prices for interval 30-Jan-2025 18:35 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1835 hrs on 30 January 2025
PRICES ARE NOW CONFIRMED for trading interval 30-Jan-2025 18:35.
In accordance with Market Notice 123943 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 1835 hrs on 30 January 2025
PRICES ARE NOW CONFIRMED for trading interval 30-Jan-2025 18:35.
In accordance with Market Notice 123943 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.
123947PRICES UNCHANGED30/01/2025 07:00:52 PM
[EventId:202501301830_confirmed] Prices for interval 30-Jan-2025 18:30 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1835 hrs on 30 January 2025
PRICES ARE NOW CONFIRMED for trading interval 30-Jan-2025 18:30.
In accordance with Market Notice 123942 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 1835 hrs on 30 January 2025
PRICES ARE NOW CONFIRMED for trading interval 30-Jan-2025 18:30.
In accordance with Market Notice 123942 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.
123946PRICES UNCHANGED30/01/2025 06:54:38 PM
[EventId:202501301825_confirmed] Prices for interval 30-Jan-2025 18:25 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1835 hrs on 30 January 2025
PRICES ARE NOW CONFIRMED for trading interval 30-Jan-2025 18:25.
In accordance with Market Notice 123941 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 1835 hrs on 30 January 2025
PRICES ARE NOW CONFIRMED for trading interval 30-Jan-2025 18:25.
In accordance with Market Notice 123941 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.
123945PRICES UNCHANGED30/01/2025 06:48:32 PM
[EventId:202501301820_confirmed] Prices for interval 30-Jan-2025 18:20 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1835 hrs on 30 January 2025
PRICES ARE NOW CONFIRMED for trading interval 30-Jan-2025 18:20.
In accordance with Market Notice 123940 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 1835 hrs on 30 January 2025
PRICES ARE NOW CONFIRMED for trading interval 30-Jan-2025 18:20.
In accordance with Market Notice 123940 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.
123944PRICES UNCHANGED30/01/2025 06:36:12 PM
[EventId:202501301810_confirmed] Prices for interval 30-Jan-2025 18:10 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1835 hrs on 30 January 2025
PRICES ARE NOW CONFIRMED for trading interval 30-Jan-2025 18:10.
In accordance with Market Notice 123938 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 1835 hrs on 30 January 2025
PRICES ARE NOW CONFIRMED for trading interval 30-Jan-2025 18:10.
In accordance with Market Notice 123938 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.