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110677CONSTRAINTS02/11/2023 10:53:49 AM
Update to voltage stability and system strength constraints 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 new feeder 8905 (H13 Ross - H39 Woree) 275kV line in Far North Queensland, the system normal equations for system strength and voltage stability have been revised.
A revision to the constraint equations will be implemented at 1400 hrs on Thursday 2nd November 2023.
The new system strength 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 equations in the Q-NIL set below will be modified:
? Q_NIL_STRGTH_KBWF
? Q_NIL_STRGTH_KBWF
? Replace Q^NIL_FNQ_MEWF and Q^NIL_FNQ_WRSVC with new equation Q^NIL_FNQ_8905
AEMO Operations
Refer to market notice 102074
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
Due to commissioning of new feeder 8905 (H13 Ross - H39 Woree) 275kV line in Far North Queensland, the system normal equations for system strength and voltage stability have been revised.
A revision to the constraint equations will be implemented at 1400 hrs on Thursday 2nd November 2023.
The new system strength 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 equations in the Q-NIL set below will be modified:
? Q_NIL_STRGTH_KBWF
? Q_NIL_STRGTH_KBWF
? Replace Q^NIL_FNQ_MEWF and Q^NIL_FNQ_WRSVC with new equation Q^NIL_FNQ_8905
AEMO Operations
107563PRICE ADJUSTMENT24/04/2023 02:51:01 PM
[EventId:202304221620_confirmed] Prices for interval 22-Apr-2023 16:20 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1451 hrs on 24 April 2023
PRICES ARE NOW CONFIRMED for trading interval 22-Apr-2023 16:20.
In accordance with Market Notice AEMO has reviewed this trading interval and determined that:
Changed Prices ($/MWh)
TYPE
Region Original Adjusted
Price Price
ENERGY
SA1 $92.11 $45.06
VIC1 $94.42 $44.94
LOWER5MIN
VIC1 $0.39 $2.38
LOWER60SEC
VIC1 $0.38 $4.24
LOWER6SEC
VIC1 $0.38 $0.53
LOWERREG
VIC1 $25.13 $13.67
RAISE5MIN
VIC1 $0.39 $0.37
RAISE60SEC
VIC1 $2.25 $1.00
RAISE6SEC
VIC1 $2.96 $1.28
RAISEREG
VIC1 $60.00 $33.61
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1451 hrs on 24 April 2023
PRICES ARE NOW CONFIRMED for trading interval 22-Apr-2023 16:20.
In accordance with Market Notice
Changed Prices ($/MWh)
TYPE
Region Original Adjusted
Price Price
ENERGY
SA1 $92.11 $45.06
VIC1 $94.42 $44.94
LOWER5MIN
VIC1 $0.39 $2.38
LOWER60SEC
VIC1 $0.38 $4.24
LOWER6SEC
VIC1 $0.38 $0.53
LOWERREG
VIC1 $25.13 $13.67
RAISE5MIN
VIC1 $0.39 $0.37
RAISE60SEC
VIC1 $2.25 $1.00
RAISE6SEC
VIC1 $2.96 $1.28
RAISEREG
VIC1 $60.00 $33.61
This is an AEMO autogenerated Market Notice.
107205CONSTRAINTS03/04/2023 01:42:00 PM
Tasmanian Regulation FCAS changes - Wednesday 5th April 2023
AEMO ELECTRICITY MARKET NOTICE
AEMO are changing the procurement of Regulation FCAS for the TAS region.
This change is based on advice received from TasNetworks, following a review of operation of the TAS region with the end of the reclassification of Basslink.
Refer to AEMO Electricity market notice 105443.
Following this change Regulation FCAS requirements for the TAS region will only be procured from within TAS.
This change will be implemented from 1000 on Wed 5th April.
Ben Blake
Manager Congestion & Grid Modelling
AEMO are changing the procurement of Regulation FCAS for the TAS region.
This change is based on advice received from TasNetworks, following a review of operation of the TAS region with the end of the reclassification of Basslink.
Refer to AEMO Electricity market notice 105443.
Following this change Regulation FCAS requirements for the TAS region will only be procured from within TAS.
This change will be implemented from 1000 on Wed 5th April.
Ben Blake
Manager Congestion & Grid Modelling
106855CONSTRAINTS21/03/2023 08:14:08 AM
Update to Victorian system normal constraint equations ID
AEMO ELECTRICITY MARKET NOTICE
AEMO has been conducting major review of thermal constraint equations for preparation of completion of VNI East project. As part of the review, AEMO is going to update the constraint equations IDs to use the new standard format of below (this is the same standard now used in NSW):
V>>[OUTAGE]_[MONITORING ELEMENT]_[CONTINGENCY ELEMENT]
This is to improve the simplicity and readability of a thermal constraint equation ID.
Constraint equations ID in sets V-NIL and V-NIL_BATS_BETS_15M will be updated to the new format on Thursday 23rd March 2023 at 1000 hrs. The previous used constraint equations ID will be included in the Modification field of the constraint equation for reference.
The changes have now been implemented into AEMO's pre-production system.
Terry Liu
AEMO Operations
AEMO has been conducting major review of thermal constraint equations for preparation of completion of VNI East project. As part of the review, AEMO is going to update the constraint equations IDs to use the new standard format of below (this is the same standard now used in NSW):
V>>[OUTAGE]_[MONITORING ELEMENT]_[CONTINGENCY ELEMENT]
This is to improve the simplicity and readability of a thermal constraint equation ID.
Constraint equations ID in sets V-NIL and V-NIL_BATS_BETS_15M will be updated to the new format on Thursday 23rd March 2023 at 1000 hrs. The previous used constraint equations ID will be included in the Modification field of the constraint equation for reference.
The changes have now been implemented into AEMO's pre-production system.
Terry Liu
AEMO 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.
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
106503RECALL GEN CAPACITY13/03/2023 10:42:16 AM
Request for Generator Recall Information for 16/03/2023 for NSW Region
AEMO ELECTRICITY MARKET NOTICE
Refer to AEMO Electricity Market Notice 106497.
Please provide Generator Recall Information for 16/03/2023 by 1100 hrs AEST on 14/03/2023 via the Generator Recall communication system, in accordance with clause 4.8.5A of the National Electricity Rules.
SO_OP_3719 Procedure for Submitting Generator Outage Recall Information is available at:
https://www.aemo.com.au/-/media/files/electricity/nem/security_and_reliability/power_system_ops/procedures/so_op_3719-procedure-for-submitting-recall-information-scheduled-generator-outages.pdf
Procedure on how to use Generator Recall in the EMMS Markets Portal is available at
http://www.aemo.com.au/-/media/Files/Electricity/NEM/IT-Systems-and-Change/2018/Guide-to-Generator-Recall-Plans.pdf
AEMO Operations
Refer to AEMO Electricity Market Notice 106497.
Please provide Generator Recall Information for 16/03/2023 by 1100 hrs AEST on 14/03/2023 via the Generator Recall communication system, in accordance with clause 4.8.5A of the National Electricity Rules.
SO_OP_3719 Procedure for Submitting Generator Outage Recall Information is available at:
https://www.aemo.com.au/-/media/files/electricity/nem/security_and_reliability/power_system_ops/procedures/so_op_3719-procedure-for-submitting-recall-information-scheduled-generator-outages.pdf
Procedure on how to use Generator Recall in the EMMS Markets Portal is available at
http://www.aemo.com.au/-/media/Files/Electricity/NEM/IT-Systems-and-Change/2018/Guide-to-Generator-Recall-Plans.pdf
AEMO Operations
106502RECALL GEN CAPACITY13/03/2023 10:41:14 AM
Request for Generator Recall Information for 16/03/2023 for QLD Region
AEMO ELECTRICITY MARKET NOTICE
Refer to AEMO Electricity Market Notice 106498.
Please provide Generator Recall Information for 16/03/2023 by 1100 hrs AEST on 14/03/2023 via the Generator Recall communication system, in accordance with clause 4.8.5A of the National Electricity Rules.
SO_OP_3719 Procedure for Submitting Generator Outage Recall Information is available at:
https://www.aemo.com.au/-/media/files/electricity/nem/security_and_reliability/power_system_ops/procedures/so_op_3719-procedure-for-submitting-recall-information-scheduled-generator-outages.pdf
Procedure on how to use Generator Recall in the EMMS Markets Portal is available at
http://www.aemo.com.au/-/media/Files/Electricity/NEM/IT-Systems-and-Change/2018/Guide-to-Generator-Recall-Plans.pdf
AEMO Operations
Refer to AEMO Electricity Market Notice 106498.
Please provide Generator Recall Information for 16/03/2023 by 1100 hrs AEST on 14/03/2023 via the Generator Recall communication system, in accordance with clause 4.8.5A of the National Electricity Rules.
SO_OP_3719 Procedure for Submitting Generator Outage Recall Information is available at:
https://www.aemo.com.au/-/media/files/electricity/nem/security_and_reliability/power_system_ops/procedures/so_op_3719-procedure-for-submitting-recall-information-scheduled-generator-outages.pdf
Procedure on how to use Generator Recall in the EMMS Markets Portal is available at
http://www.aemo.com.au/-/media/Files/Electricity/NEM/IT-Systems-and-Change/2018/Guide-to-Generator-Recall-Plans.pdf
AEMO Operations