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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.
106643CONSTRAINTS15/03/2023 12:39:32 PM
Updated NSW system normal voltage stability limit
AEMO ELECTRICITY MARKET NOTICE
Refer to market notice 105936?
The Murraylink Very Fast Runback (VFRB) scheme was modified to increase the capacity of the network due to the increase in generation in the area. The scheme was changed so Murraylink VFRB could be activated / de-activated depending on the time of day on the monitored 220kV lines in north-west Victoria.?
Transgrid has advised AEMO on a revision to the X5 voltage collapse limit with this change to VFRB. This will now be managed by two limits.?
The following constraint equation changes will be implemented at 0900 hrs on Thursday 16th March 2023:
N^^N_NIL_X5_BEKG (replaces N^^N_NIL_3)
N^^N_NIL_X5_BESH (new)?
For full details on the factors on constraint equations and all the constraint equation changes - these have now been loaded into AEMO's pre-production systems.?
Ben Blake
AEMO Operations
Refer to market notice 105936?
The Murraylink Very Fast Runback (VFRB) scheme was modified to increase the capacity of the network due to the increase in generation in the area. The scheme was changed so Murraylink VFRB could be activated / de-activated depending on the time of day on the monitored 220kV lines in north-west Victoria.?
Transgrid has advised AEMO on a revision to the X5 voltage collapse limit with this change to VFRB. This will now be managed by two limits.?
The following constraint equation changes will be implemented at 0900 hrs on Thursday 16th March 2023:
N^^N_NIL_X5_BEKG (replaces N^^N_NIL_3)
N^^N_NIL_X5_BESH (new)?
For full details on the factors on constraint equations and all the constraint equation changes - these have now been loaded into AEMO's pre-production systems.?
Ben Blake
AEMO Operations
106175CONSTRAINTS01/03/2023 11:54:17 AM
Update to system strength requirements in North Queensland
AEMO ELECTRICITY MARKET NOTICE
Refer to market notice 102074
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
Due to commissioning of Kaban wind farm in Far North Queensland, the system normal equations have been revised to include following combinations.
-If Stanwell >=2, Stanwell + Calllide >=3, Gladstone >= 1, Stanwell + Callide + Gladstone >= 7, Kareeya >=0, Haughton Syncon status = ON/OFF, North Queensland load >=250 MW,
Ross+FNQ load >=100 MW, limit Kaban Windfarm to 100% (with Haughton Syncon ON), 0% (with Haughton Syncon Syncon OFF) and no limit to other NQLD Plants.
A revision to the constraint equations will be implemented at 1400 hrs on Wednesday 1st March 2023.
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 102074
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
Due to commissioning of Kaban wind farm in Far North Queensland, the system normal equations have been revised to include following combinations.
-If Stanwell >=2, Stanwell + Calllide >=3, Gladstone >= 1, Stanwell + Callide + Gladstone >= 7, Kareeya >=0, Haughton Syncon status = ON/OFF, North Queensland load >=250 MW,
Ross+FNQ load >=100 MW, limit Kaban Windfarm to 100% (with Haughton Syncon ON), 0% (with Haughton Syncon Syncon OFF) and no limit to other NQLD Plants.
A revision to the constraint equations will be implemented at 1400 hrs on Wednesday 1st March 2023.
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
105936CONSTRAINTS17/02/2023 05:07:05 PM
Changes to Murraylink Very Fast Runback and constraints in Victoria
AEMO ELECTRICITY MARKET NOTICE
The Murraylink Very Fast Runback (VFRB) scheme is being modified to increase the capacity of the network due to the increase in generation in the area. The scheme will be changed so Murraylink VFRB can be activated / de-activated depending on the time of day on the monitored 220kV lines in north-west Victoria.
The changes to the scheme will be activated and constraint equaiton modified at 1200hrs Monday 20th February 2023. The following system normal constraint equations will be modified:
V^^V_NIL_KGTS
V^^V_NIL_KGTS_2
V>>SML_NIL_7A
V>>SML_NIL_7B
V>>SML_NIL_7C
V>>V_NIL_13
V>>V_NIL_14
V>>V_NIL_20
V>>V_NIL_21
V>>V_NIL_22
V>>V_NIL_23
V>>V_NIL_24
V>>V_NIL_25
V>>V_NIL_26
V>>V_NIL_26_1
V>>V_NIL_26A
V>>V_NIL_26A_1
For full details on the factors on constraint equations and all the constrint equation changes - these have now been loaded into AEMO's pre-production systems.
Ben Blake
AEMO Operations
The Murraylink Very Fast Runback (VFRB) scheme is being modified to increase the capacity of the network due to the increase in generation in the area. The scheme will be changed so Murraylink VFRB can be activated / de-activated depending on the time of day on the monitored 220kV lines in north-west Victoria.
The changes to the scheme will be activated and constraint equaiton modified at 1200hrs Monday 20th February 2023. The following system normal constraint equations will be modified:
V^^V_NIL_KGTS
V^^V_NIL_KGTS_2
V>>SML_NIL_7A
V>>SML_NIL_7B
V>>SML_NIL_7C
V>>V_NIL_13
V>>V_NIL_14
V>>V_NIL_20
V>>V_NIL_21
V>>V_NIL_22
V>>V_NIL_23
V>>V_NIL_24
V>>V_NIL_25
V>>V_NIL_26
V>>V_NIL_26_1
V>>V_NIL_26A
V>>V_NIL_26A_1
For full details on the factors on constraint equations and all the constrint equation changes - these have now been loaded into AEMO's pre-production systems.
Ben Blake
AEMO Operations
103504PRICE ADJUSTMENT18/11/2022 12:36:57 PM
[EventId:202211170915_confirmed] Prices for interval 17-Nov-2022 09:15 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1234 hrs on 18 November 2022
PRICES ARE NOW CONFIRMED for trading interval 17-Nov-2022 09:15.
In accordance with Market Notice 103363 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
RAISE60SEC
NSW1 $1.60 $2.00
QLD1 $1.60 $2.00
TAS1 $1.60 $2.00
VIC1 $1.60 $2.00
RAISEREG
NSW1 $29.67 $37.29
QLD1 $29.67 $37.29
TAS1 $13.51 $11.86
VIC1 $29.67 $37.29
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1234 hrs on 18 November 2022
PRICES ARE NOW CONFIRMED for trading interval 17-Nov-2022 09:15.
In accordance with Market Notice 103363 AEMO has reviewed this trading interval and determined that:
- Over-Constrained Dispatch has been resolved for this interval
Changed Prices ($/MWh)
TYPE
Region Original Adjusted
Price Price
RAISE60SEC
NSW1 $1.60 $2.00
QLD1 $1.60 $2.00
TAS1 $1.60 $2.00
VIC1 $1.60 $2.00
RAISEREG
NSW1 $29.67 $37.29
QLD1 $29.67 $37.29
TAS1 $13.51 $11.86
VIC1 $29.67 $37.29
This is an AEMO autogenerated Market Notice.
103503PRICE ADJUSTMENT18/11/2022 12:35:49 PM
[EventId:202211170910_confirmed] Prices for interval 17-Nov-2022 09:10 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1234 hrs on 18 November 2022
PRICES ARE NOW CONFIRMED for trading interval 17-Nov-2022 09:10.
In accordance with Market Notice 103362 AEMO has reviewed this trading interval and determined that:
- Over-Constrained Dispatch has been resolved for this interval
Changed Prices ($/MWh)
TYPE
Region Original Adjusted
Price Price
ENERGY
NSW1 $125.09 $126.15
QLD1 $107.81 $108.72
SA1 $95.91 $96.72
VIC1 $122.05 $123.09
RAISE60SEC
TAS1 $1.49 $0.43
RAISEREG
NSW1 $42.51 $43.55
QLD1 $42.51 $43.55
VIC1 $42.51 $43.55
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1234 hrs on 18 November 2022
PRICES ARE NOW CONFIRMED for trading interval 17-Nov-2022 09:10.
In accordance with Market Notice 103362 AEMO has reviewed this trading interval and determined that:
- Over-Constrained Dispatch has been resolved for this interval
Changed Prices ($/MWh)
TYPE
Region Original Adjusted
Price Price
ENERGY
NSW1 $125.09 $126.15
QLD1 $107.81 $108.72
SA1 $95.91 $96.72
VIC1 $122.05 $123.09
RAISE60SEC
TAS1 $1.49 $0.43
RAISEREG
NSW1 $42.51 $43.55
QLD1 $42.51 $43.55
VIC1 $42.51 $43.55
This is an AEMO autogenerated Market Notice.
102074CONSTRAINTS05/10/2022 01:28:35 PM
Update to system strength requirements in North Queensland
AEMO ELECTRICITY MARKET NOTICE
Refer to market notice 101018
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
Due to commissioning of Kaban wind farm in Far North Queensland, the system normal equations have been revised.
A revision to the constraint equations will be implemented at 1530 hrs on Wednesday 5th October 2022.
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.
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 101018
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
Due to commissioning of Kaban wind farm in Far North Queensland, the system normal equations have been revised.
A revision to the constraint equations will be implemented at 1530 hrs on Wednesday 5th October 2022.
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.
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
101368CONSTRAINTS26/08/2022 10:59:09 AM
New Victorian system normal voltage stability limit
AEMO ELECTRICITY MARKET NOTICE
AEMO has identified a new voltage collapse issue in south-west Victoria. The voltage collapse occurs in the south-west region for loss of the Haunted Gully to Moorabool 500 kV line with simultaneous trip of both APD potlines as per Market Notice 91405.
The limit will manage flow towards Moorabool on the cut-set of Haunted Gully to Moorabool and Mortlake to Moorabool 500 kV lines.
The new constraint equation includes generators in south-west Victoria on the left-hand side as well as Heywood interconnector. Full details on the limits advice are to be published on 30th August 2022 on the AEMO website: https://aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice
The following constraint equation will be implemented and added to constraint set V-NIL at 1000 hrs on Tuesday 30th August 2022:
V^^V_NIL_SWVIC
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 identified a new voltage collapse issue in south-west Victoria. The voltage collapse occurs in the south-west region for loss of the Haunted Gully to Moorabool 500 kV line with simultaneous trip of both APD potlines as per Market Notice 91405.
The limit will manage flow towards Moorabool on the cut-set of Haunted Gully to Moorabool and Mortlake to Moorabool 500 kV lines.
The new constraint equation includes generators in south-west Victoria on the left-hand side as well as Heywood interconnector. Full details on the limits advice are to be published on 30th August 2022 on the AEMO website: https://aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice
The following constraint equation will be implemented and added to constraint set V-NIL at 1000 hrs on Tuesday 30th August 2022:
V^^V_NIL_SWVIC
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