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126023CONSTRAINTS28/03/2025 03:39:03 PM
Update to Victorian system normal Kerang voltage stability limit
AEMO ELECTRICITY MARKET NOTICE
AEMO has completed a review of a system normal voltage stability limit in north west Victoria as a result of commissioning of BESS at Koorangie. The revised limit manages pre-contingent flow on the Wemen to Koorangie 220 kV line to avoid voltage collapse at Koorangie, Kerang or Wemen on loss of the Crowlands to Bulgana to Horsham or Horsham to Murra Warra to Kiamal 220 kV line. The revised constraint equation includes the generators in south-west NSW and north-west Victoria on the left-hand side as well as Murraylink and V-SA. Full details on the limits advice are to be published shortly on the AEMO website: https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice
The revised limit will be implemented at 0900 hrs on Monday 31st March 2025, by updating V^^V_NIL_KGTS.
For full details on the factors this constraint equation has now been loaded into AEMO's pre-production systems.
For further details on this constraint equation please contact terry.liu@aemo.com.au
Terry Liu
AEMO Operations
AEMO has completed a review of a system normal voltage stability limit in north west Victoria as a result of commissioning of BESS at Koorangie. The revised limit manages pre-contingent flow on the Wemen to Koorangie 220 kV line to avoid voltage collapse at Koorangie, Kerang or Wemen on loss of the Crowlands to Bulgana to Horsham or Horsham to Murra Warra to Kiamal 220 kV line. The revised constraint equation includes the generators in south-west NSW and north-west Victoria on the left-hand side as well as Murraylink and V-SA. Full details on the limits advice are to be published shortly on the AEMO website: https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice
The revised limit will be implemented at 0900 hrs on Monday 31st March 2025, by updating V^^V_NIL_KGTS.
For full details on the factors this constraint equation has now been loaded into AEMO's pre-production systems.
For further details on this constraint equation please contact terry.liu@aemo.com.au
Terry Liu
AEMO Operations
125976PRICES UNCHANGED26/03/2025 05:00:22 PM
[EventId:202503261640_confirmed] Prices for interval 26-Mar-2025 16:40 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1700 hrs on 26 March 2025
PRICES ARE NOW CONFIRMED for trading interval 26-Mar-2025 16:40.
In accordance with Market Notice 125966 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 1700 hrs on 26 March 2025
PRICES ARE NOW CONFIRMED for trading interval 26-Mar-2025 16:40.
In accordance with Market Notice 125966 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.
125975PRICES UNCHANGED26/03/2025 05:00:22 PM
[EventId:202503261700_confirmed] Prices for interval 26-Mar-2025 17:00 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1700 hrs on 26 March 2025
PRICES ARE NOW CONFIRMED for trading interval 26-Mar-2025 17:00.
In accordance with Market Notice 125970 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 1700 hrs on 26 March 2025
PRICES ARE NOW CONFIRMED for trading interval 26-Mar-2025 17:00.
In accordance with Market Notice 125970 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.
125974PRICES UNCHANGED26/03/2025 05:00:21 PM
[EventId:202503261655_confirmed] Prices for interval 26-Mar-2025 16:55 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1700 hrs on 26 March 2025
PRICES ARE NOW CONFIRMED for trading interval 26-Mar-2025 16:55.
In accordance with Market Notice 125969 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 1700 hrs on 26 March 2025
PRICES ARE NOW CONFIRMED for trading interval 26-Mar-2025 16:55.
In accordance with Market Notice 125969 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.
125973PRICES UNCHANGED26/03/2025 05:00:21 PM
[EventId:202503261650_confirmed] Prices for interval 26-Mar-2025 16:50 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1700 hrs on 26 March 2025
PRICES ARE NOW CONFIRMED for trading interval 26-Mar-2025 16:50.
In accordance with Market Notice 125968 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 1700 hrs on 26 March 2025
PRICES ARE NOW CONFIRMED for trading interval 26-Mar-2025 16:50.
In accordance with Market Notice 125968 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.
125972PRICES UNCHANGED26/03/2025 05:00:20 PM
[EventId:202503261645_confirmed] Prices for interval 26-Mar-2025 16:45 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1700 hrs on 26 March 2025
PRICES ARE NOW CONFIRMED for trading interval 26-Mar-2025 16:45.
In accordance with Market Notice 125967 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 1700 hrs on 26 March 2025
PRICES ARE NOW CONFIRMED for trading interval 26-Mar-2025 16:45.
In accordance with Market Notice 125967 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.
125971PRICES UNCHANGED26/03/2025 05:00:18 PM
[EventId:202503261635_confirmed] Prices for interval 26-Mar-2025 16:35 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1700 hrs on 26 March 2025
PRICES ARE NOW CONFIRMED for trading interval 26-Mar-2025 16:35.
In accordance with Market Notice 125965 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 1700 hrs on 26 March 2025
PRICES ARE NOW CONFIRMED for trading interval 26-Mar-2025 16:35.
In accordance with Market Notice 125965 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.
125963POWER SYSTEM EVENTS26/03/2025 04:20:27 PM
Non-credible contingency event - TAS region - 26/03/2025
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - TAS region - 26/03/2025
At 1551 hrs the Palmerston A 220kV Bus tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
Approximately 40MW of generation was disconnected.
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 - TAS region - 26/03/2025
At 1551 hrs the Palmerston A 220kV Bus tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
Approximately 40MW of generation was disconnected.
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
125944NON-CONFORMANCE25/03/2025 03:45:15 PM
NON-CONFORMANCE Region QLD1 Tuesday, 25 March 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE QLD1 Region Tuesday, 25 March 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: MPP_1
Duration: 25/03/2025 14:55 to 25/03/2025 15:45
Amount: -55 MW
Constraint: NC-Q_MPP_1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE QLD1 Region Tuesday, 25 March 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: MPP_1
Duration: 25/03/2025 14:55 to 25/03/2025 15:45
Amount: -55 MW
Constraint: NC-Q_MPP_1
Auto-generated on behalf of Manager NEM Real Time Operations