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121468CONSTRAINTS09/12/2024 09:04:22 AM
Update to system strength requirements in North Queensland
AEMO ELECTRICITY MARKET NOTICE
Refer to market notice 106175
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
Due to commissioning of Clarke Creek wind farm in Far North Queensland, the system normal equations have been revised.
A revision to the constraint equations will be implemented at 1100 hrs on Monday 9th December 2024.
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_KBWF
-Q_NIL_STRGTH_MEWF
Two new equations have been added:
-Q_NIL_STRGTH_CKWF
-Q_NIL_STRGTH_CKWF_I
AEMO Operations
Refer to market notice 106175
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
Due to commissioning of Clarke Creek wind farm in Far North Queensland, the system normal equations have been revised.
A revision to the constraint equations will be implemented at 1100 hrs on Monday 9th December 2024.
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_KBWF
-Q_NIL_STRGTH_MEWF
Two new equations have been added:
-Q_NIL_STRGTH_CKWF
-Q_NIL_STRGTH_CKWF_I
AEMO Operations
121169PRICE ADJUSTMENT28/11/2024 02:18:30 PM
[EventId:202411271510_confirmed] Prices for interval 27-Nov-2024 15:10 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1418 hrs on 28 November 2024
PRICES ARE NOW CONFIRMED for trading interval 27-Nov-2024 15:10.
In accordance with Market Notice 121092 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
ENERGY
VIC1 -$30.00 -$29.50
RAISE60SEC
NSW1 $0.10 $0.05
QLD1 $0.10 $0.05
SA1 $0.10 $0.05
VIC1 $0.10 $0.05
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1418 hrs on 28 November 2024
PRICES ARE NOW CONFIRMED for trading interval 27-Nov-2024 15:10.
In accordance with Market Notice 121092 AEMO has reviewed this trading interval and determined that:
- Over-Constrained Dispatch has been resolved for this interval
Changed Prices ($/MWh)
TYPE
Region Original Adjusted
Price Price
ENERGY
VIC1 -$30.00 -$29.50
RAISE60SEC
NSW1 $0.10 $0.05
QLD1 $0.10 $0.05
SA1 $0.10 $0.05
VIC1 $0.10 $0.05
This is an AEMO autogenerated Market Notice.
121008POWER SYSTEM EVENTS26/11/2024 04:55:00 PM
Non-credible contingency event - NSW region - 26/11/2024
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - NSW region - 26/11/2024
At 1637 hrs Uranquinty Unit 12 tripped and at 1639 hrs Uranquinty Units 11 and 13 tripped.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Non-credible contingency event - NSW region - 26/11/2024
At 1637 hrs Uranquinty Unit 12 tripped and at 1639 hrs Uranquinty Units 11 and 13 tripped.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
120800PRICE ADJUSTMENT22/11/2024 11:27:26 AM
[EventId:202411221115_confirmed] Prices for interval 22-Nov-2024 11:15 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1126 hrs on 22 November 2024
PRICES ARE NOW CONFIRMED for trading interval 22-Nov-2024 11:15.
In accordance with Market Notice 120795 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs applied. Prices have been carried forward from the previous dispatch interval
Changed Prices ($/MWh)
TYPE
Region Original Adjusted
Price Price
ENERGY
NSW1 $64.00 $25.81
QLD1 $62.79 $26.90
SA1 $8.61 $11.91
VIC1 $8.95 $12.00
LOWER1SEC
NSW1 $0.94 $0.10
QLD1 $0.94 $0.10
SA1 $0.94 $0.10
VIC1 $0.94 $0.10
LOWER60SEC
NSW1 $4.64 $1.82
QLD1 $4.64 $1.82
SA1 $4.64 $1.82
VIC1 $4.64 $1.82
LOWER6SEC
NSW1 $9.69 $4.89
QLD1 $9.69 $4.89
SA1 $9.69 $4.89
VIC1 $9.69 $4.89
LOWERREG
NSW1 $9.99 $19.85
QLD1 $9.99 $19.85
SA1 $9.99 $19.85
VIC1 $9.99 $19.85
RAISE1SEC
NSW1 $0.84 $0.05
QLD1 $0.84 $0.05
SA1 $0.84 $0.05
TAS1 $0.84 $0.05
VIC1 $0.84 $0.05
RAISE5MIN
NSW1 $0.05 $0.10
QLD1 $0.05 $0.10
SA1 $0.05 $0.10
VIC1 $0.05 $0.10
RAISE60SEC
NSW1 $0.00 $0.01
QLD1 $0.00 $0.01
SA1 $0.00 $0.01
VIC1 $0.00 $0.01
RAISE6SEC
NSW1 $0.01 $0.00
QLD1 $0.01 $0.00
SA1 $0.01 $0.00
VIC1 $0.01 $0.00
RAISEREG
NSW1 $7.99 $1.00
QLD1 $7.99 $1.00
SA1 $7.99 $1.00
VIC1 $7.99 $1.00
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1126 hrs on 22 November 2024
PRICES ARE NOW CONFIRMED for trading interval 22-Nov-2024 11:15.
In accordance with Market Notice 120795 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs applied. Prices have been carried forward from the previous dispatch interval
Changed Prices ($/MWh)
TYPE
Region Original Adjusted
Price Price
ENERGY
NSW1 $64.00 $25.81
QLD1 $62.79 $26.90
SA1 $8.61 $11.91
VIC1 $8.95 $12.00
LOWER1SEC
NSW1 $0.94 $0.10
QLD1 $0.94 $0.10
SA1 $0.94 $0.10
VIC1 $0.94 $0.10
LOWER60SEC
NSW1 $4.64 $1.82
QLD1 $4.64 $1.82
SA1 $4.64 $1.82
VIC1 $4.64 $1.82
LOWER6SEC
NSW1 $9.69 $4.89
QLD1 $9.69 $4.89
SA1 $9.69 $4.89
VIC1 $9.69 $4.89
LOWERREG
NSW1 $9.99 $19.85
QLD1 $9.99 $19.85
SA1 $9.99 $19.85
VIC1 $9.99 $19.85
RAISE1SEC
NSW1 $0.84 $0.05
QLD1 $0.84 $0.05
SA1 $0.84 $0.05
TAS1 $0.84 $0.05
VIC1 $0.84 $0.05
RAISE5MIN
NSW1 $0.05 $0.10
QLD1 $0.05 $0.10
SA1 $0.05 $0.10
VIC1 $0.05 $0.10
RAISE60SEC
NSW1 $0.00 $0.01
QLD1 $0.00 $0.01
SA1 $0.00 $0.01
VIC1 $0.00 $0.01
RAISE6SEC
NSW1 $0.01 $0.00
QLD1 $0.01 $0.00
SA1 $0.01 $0.00
VIC1 $0.01 $0.00
RAISEREG
NSW1 $7.99 $1.00
QLD1 $7.99 $1.00
SA1 $7.99 $1.00
VIC1 $7.99 $1.00
This is an AEMO autogenerated Market Notice.
120797PRICE ADJUSTMENT22/11/2024 11:17:32 AM
[EventId:202411221110_confirmed] Prices for interval 22-Nov-2024 11:10 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1117 hrs on 22 November 2024
PRICES ARE NOW CONFIRMED for trading interval 22-Nov-2024 11:10.
In accordance with Market Notice 120794 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs applied. Prices have been carried forward from the previous dispatch interval
Changed Prices ($/MWh)
TYPE
Region Original Adjusted
Price Price
ENERGY
NSW1 $150.01 $25.81
QLD1 $143.43 $26.90
SA1 $53.81 $11.91
VIC1 $55.02 $12.00
LOWER5MIN
NSW1 $1.57 $0.39
QLD1 $1.57 $0.39
SA1 $1.57 $0.39
VIC1 $1.57 $0.39
LOWER60SEC
NSW1 $4.64 $1.82
QLD1 $4.64 $1.82
SA1 $4.64 $1.82
VIC1 $4.64 $1.82
LOWER6SEC
NSW1 $9.69 $4.89
QLD1 $9.69 $4.89
SA1 $9.69 $4.89
VIC1 $9.69 $4.89
LOWERREG
NSW1 $20.90 $19.85
QLD1 $20.90 $19.85
SA1 $20.90 $19.85
VIC1 $20.90 $19.85
RAISE1SEC
NSW1 $0.10 $0.05
QLD1 $0.10 $0.05
SA1 $0.10 $0.05
TAS1 $0.10 $0.05
VIC1 $0.10 $0.05
RAISE5MIN
NSW1 $0.05 $0.10
QLD1 $0.05 $0.10
SA1 $0.05 $0.10
VIC1 $0.05 $0.10
RAISE60SEC
NSW1 $0.05 $0.01
QLD1 $0.05 $0.01
SA1 $0.05 $0.01
VIC1 $0.05 $0.01
RAISE6SEC
NSW1 $0.10 $0.00
QLD1 $0.10 $0.00
SA1 $0.10 $0.00
VIC1 $0.10 $0.00
RAISEREG
NSW1 $5.00 $1.00
QLD1 $5.00 $1.00
SA1 $5.00 $1.00
VIC1 $5.00 $1.00
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1117 hrs on 22 November 2024
PRICES ARE NOW CONFIRMED for trading interval 22-Nov-2024 11:10.
In accordance with Market Notice 120794 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs applied. Prices have been carried forward from the previous dispatch interval
Changed Prices ($/MWh)
TYPE
Region Original Adjusted
Price Price
ENERGY
NSW1 $150.01 $25.81
QLD1 $143.43 $26.90
SA1 $53.81 $11.91
VIC1 $55.02 $12.00
LOWER5MIN
NSW1 $1.57 $0.39
QLD1 $1.57 $0.39
SA1 $1.57 $0.39
VIC1 $1.57 $0.39
LOWER60SEC
NSW1 $4.64 $1.82
QLD1 $4.64 $1.82
SA1 $4.64 $1.82
VIC1 $4.64 $1.82
LOWER6SEC
NSW1 $9.69 $4.89
QLD1 $9.69 $4.89
SA1 $9.69 $4.89
VIC1 $9.69 $4.89
LOWERREG
NSW1 $20.90 $19.85
QLD1 $20.90 $19.85
SA1 $20.90 $19.85
VIC1 $20.90 $19.85
RAISE1SEC
NSW1 $0.10 $0.05
QLD1 $0.10 $0.05
SA1 $0.10 $0.05
TAS1 $0.10 $0.05
VIC1 $0.10 $0.05
RAISE5MIN
NSW1 $0.05 $0.10
QLD1 $0.05 $0.10
SA1 $0.05 $0.10
VIC1 $0.05 $0.10
RAISE60SEC
NSW1 $0.05 $0.01
QLD1 $0.05 $0.01
SA1 $0.05 $0.01
VIC1 $0.05 $0.01
RAISE6SEC
NSW1 $0.10 $0.00
QLD1 $0.10 $0.00
SA1 $0.10 $0.00
VIC1 $0.10 $0.00
RAISEREG
NSW1 $5.00 $1.00
QLD1 $5.00 $1.00
SA1 $5.00 $1.00
VIC1 $5.00 $1.00
This is an AEMO autogenerated Market Notice.
120306POWER SYSTEM EVENTS12/11/2024 11:43:52 AM
Update - Non-credible contingency event - VIC region - 12/11/2024
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - VIC region - 12/11/2024
Refer AEMO Electricity Market Notice 120305
At 1135 hrs the Yallourn No 1 220 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 - 12/11/2024
Refer AEMO Electricity Market Notice 120305
At 1135 hrs the Yallourn No 1 220 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
120305POWER SYSTEM EVENTS12/11/2024 10:55:18 AM
Non-credible contingency event - VIC region - 12/11/2024
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - VIC region - 12/11/2024
At 1041 hrs the Yallourn No 1 220 kV bus and Yallourn 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 is not known at this stage.
Manager NEM Real Time Operations
Non-credible contingency event - VIC region - 12/11/2024
At 1041 hrs the Yallourn No 1 220 kV bus and Yallourn 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 is not known at this stage.
Manager NEM Real Time Operations
120099MINIMUM SYSTEM LOAD07/11/2024 03:11:35 PM
Cancellation - Forecast Minimum System Load 1 (MSL1) condition in the VIC Region on 10/11/2024
AEMO ELECTRICITY MARKET NOTICE
Cancellation - Forecast MSL1 - VIC Region at 1400 hrs 07/11/2024.
Refer to Market Notice 119996 for Forecast MSL1.
AEMO Operations
Cancellation - Forecast MSL1 - VIC Region at 1400 hrs 07/11/2024.
Refer to Market Notice 119996 for Forecast MSL1.
AEMO Operations
119996MINIMUM SYSTEM LOAD06/11/2024 03:44:08 PM
Forecast Minimum System Load 1 (MSL1) condition in the VIC region on 10/11/2024
AEMO ELECTRICITY MARKET NOTICE
Update to Market Notice 119920 - AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the VIC region on 10/11/2024.
Minimum System Load (MSL) conditions are forecast when regional demand is less than the relevant MSL threshold. The advisory MSL thresholds are:
o MSL1 - 1745 MW
o MSL2 - 1245 MW
o MSL3 - 745 MW
The regional demand is forecast to be below the MSL1 threshold for the following period:
1. From 1230 hrs to 1330 hrs 10/11/2024. Minimum regional demand is forecast to be 1719 MW at 1300 hrs.
Forecast regional demand (DEMAND50) is published in Short Term and Pre-Dispatch PASA region solution reports available on Market Data NEMWEB: https://aemo.com.au/en/energy-systems/electricity/national-electricity-market-nem/data-nem/market-data-nemweb .
AEMO Operations
Update to Market Notice 119920 - AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the VIC region on 10/11/2024.
Minimum System Load (MSL) conditions are forecast when regional demand is less than the relevant MSL threshold. The advisory MSL thresholds are:
o MSL1 - 1745 MW
o MSL2 - 1245 MW
o MSL3 - 745 MW
The regional demand is forecast to be below the MSL1 threshold for the following period:
1. From 1230 hrs to 1330 hrs 10/11/2024. Minimum regional demand is forecast to be 1719 MW at 1300 hrs.
Forecast regional demand (DEMAND50) is published in Short Term and Pre-Dispatch PASA region solution reports available on Market Data NEMWEB: https://aemo.com.au/en/energy-systems/electricity/national-electricity-market-nem/data-nem/market-data-nemweb .
AEMO Operations