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89355CONSTRAINTS09/08/2021 02:52:43 PM
Update to system strength requirements in North Queensland
AEMO ELECTRICITY MARKET NOTICE
Refer to market notice 86823
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
A revision to the constraint equations will be implemented at 1100 hrs Tuesday 10th August 2021.
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 equations in the Q-NIL set of the form below will be modified:
Q_NIL_STRGTH_MEWF
Q_NIL_STRGTH_SMSF
Q_NIL_STRGTH_HAUSF
For further details please contact James Lindley at james.lindley@aemo.com.au or Simon Taylor at businessdevelopment@powerlink.com.au
AEMO Operations
Refer to market notice 86823
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
A revision to the constraint equations will be implemented at 1100 hrs Tuesday 10th August 2021.
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 equations in the Q-NIL set of the form below will be modified:
Q_NIL_STRGTH_MEWF
Q_NIL_STRGTH_SMSF
Q_NIL_STRGTH_HAUSF
For further details please contact James Lindley at james.lindley@aemo.com.au or Simon Taylor at businessdevelopment@powerlink.com.au
AEMO Operations
86823CONSTRAINTS09/06/2021 02:23:31 PM
Update to system strength requirements in North Queensland
AEMO ELECTRICITY MARKET NOTICE
Refer to market notice 86121 and 79837
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
A revision to the constraint equations will be implemented at 1000 hrs Thursday 10th June 2021.
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 equations in the Q-NIL set of the form below will be modified:
Q_NIL_STRGTH_XXX
For further details please contact James Lindley at james.lindley@aemo.com.au or Simon Taylor at businessdevelopment@powerlink.com.au
Ben Blake
AEMO Operations
Refer to market notice 86121 and 79837
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
A revision to the constraint equations will be implemented at 1000 hrs Thursday 10th June 2021.
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 equations in the Q-NIL set of the form below will be modified:
Q_NIL_STRGTH_XXX
For further details please contact James Lindley at james.lindley@aemo.com.au or Simon Taylor at businessdevelopment@powerlink.com.au
Ben Blake
AEMO Operations
86791RECALL GEN CAPACITY08/06/2021 06:43:26 PM
Request for Generator Recall Information for the period for 10/06/2021 for NSW Region
AEMO ELECTRICITY MARKET NOTICE
Refer to AEMO Electricity Market Notice 86790
Please provide Generator Recall Information for 10/06/2021 by 1700 hrs on 09/06/2021 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
Manager NEM Real Time Operations
Refer to AEMO Electricity Market Notice 86790
Please provide Generator Recall Information for 10/06/2021 by 1700 hrs on 09/06/2021 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
Manager NEM Real Time Operations
86755RECALL GEN CAPACITY07/06/2021 09:21:51 PM
Request for Generator Recall Information for the period for 10/06/2021 for NSW Region
AEMO ELECTRICITY MARKET NOTICE
Refer to AEMO Electricity Market Notice no. 86754 [Intention to intervene MN]
Please provide Generator Recall Information for 10/06/2021 by 1700 hrs on 08/06/2021 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
Manager NEM Real Time Operations
Refer to AEMO Electricity Market Notice no. 86754 [Intention to intervene MN]
Please provide Generator Recall Information for 10/06/2021 by 1700 hrs on 08/06/2021 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
Manager NEM Real Time Operations
86739RECALL GEN CAPACITY07/06/2021 08:19:15 PM
Request for Generator Recall Information for the period for 10/06/2021 for Queensland Region
AEMO ELECTRICITY MARKET NOTICE
Refer to AEMO Electricity Market Notice no. 86752 [Intention to intervene MN]
Please provide Generator Recall Information for 10/06/2021 by 1700 hrs on 08/06/2021 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
Manager NEM Real Time Operations
Refer to AEMO Electricity Market Notice no. 86752 [Intention to intervene MN]
Please provide Generator Recall Information for 10/06/2021 by 1700 hrs on 08/06/2021 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
Manager NEM Real Time Operations
86121CONSTRAINTS27/05/2021 05:35:40 PM
Update to system strength requirements in North Queensland
AEMO ELECTRICITY MARKET NOTICE
Refer to market notice 86076
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
Following the events in Qld on 25th May 2021 the following system strength combinations have been implemented for north Queensland generators:
A. 3 x Stanwell + 3 x Gladstone + 2 Kareeya: 80% output at North Qld solar farms and Mt Emerald
B. 3 x Stanwell + 4 x Gladstone + 2 Kareeya: 100% output at North Qld solar farms and Mt Emerald
Where North Qld solar farms are: Clare, Collinsville, Daydream, Hamilton, Haughton, Hayman, Kidston, Ross, Rugby Run, Sun Metals and Whitsunday
The combinations in market notice 86076 have been replaced with the ones above.
The constraint equations in the Q-NIL set of the form below were modified earlier today:
Q_NIL_STRGTH_XXX
For further details please contact James Lindley at james.lindley@aemo.com.au or Simon Taylor at businessdevelopment@powerlink.com.au
Ben Blake
AEMO Operations
Refer to market notice 86076
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
Following the events in Qld on 25th May 2021 the following system strength combinations have been implemented for north Queensland generators:
A. 3 x Stanwell + 3 x Gladstone + 2 Kareeya: 80% output at North Qld solar farms and Mt Emerald
B. 3 x Stanwell + 4 x Gladstone + 2 Kareeya: 100% output at North Qld solar farms and Mt Emerald
Where North Qld solar farms are: Clare, Collinsville, Daydream, Hamilton, Haughton, Hayman, Kidston, Ross, Rugby Run, Sun Metals and Whitsunday
The combinations in market notice 86076 have been replaced with the ones above.
The constraint equations in the Q-NIL set of the form below were modified earlier today:
Q_NIL_STRGTH_XXX
For further details please contact James Lindley at james.lindley@aemo.com.au or Simon Taylor at businessdevelopment@powerlink.com.au
Ben Blake
AEMO Operations
86076CONSTRAINTS26/05/2021 02:01:15 PM
Update to system strength requirements in North Queensland
AEMO ELECTRICITY MARKET NOTICE
Refer to market notice 84211
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
Following the events in Qld on 25th May 2021 the following system strength combinations have been implemented for north Queensland generators:
1. 3 x Stanwell + 2 x Gladstone + 2 Kareeya + 1 x Barron Gorge: 50% output at North Qld solar farms and Mt Emerald
2. 3 x Stanwell + 3 x Gladstone + 2 Kareeya: 80% output at Mt Emerald WF and 50% output at North Qld solar farms
3. 3 x Stanwell + 3 x Gladstone + 2 Kareeya + Townsville GT: 80% output at North Qld solar farms and Mt Emerald
Where NQ solar farms are: Clare, Collinsville, Daydream, Hamilton, Haughton, Hayman, Kidston, Ross, Rugby Run, Sun Metals and Whitsunday
The constraint equations in the Q-NIL set of the form below were modified earlier today:
Q_NIL_STRGTH_XXX
For further details please contact James Lindley at james.lindley@aemo.com.au or Simon Taylor at businessdevelopment@powerlink.com.au
Ben Blake
AEMO Operations
Refer to market notice 84211
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
Following the events in Qld on 25th May 2021 the following system strength combinations have been implemented for north Queensland generators:
1. 3 x Stanwell + 2 x Gladstone + 2 Kareeya + 1 x Barron Gorge: 50% output at North Qld solar farms and Mt Emerald
2. 3 x Stanwell + 3 x Gladstone + 2 Kareeya: 80% output at Mt Emerald WF and 50% output at North Qld solar farms
3. 3 x Stanwell + 3 x Gladstone + 2 Kareeya + Townsville GT: 80% output at North Qld solar farms and Mt Emerald
Where NQ solar farms are: Clare, Collinsville, Daydream, Hamilton, Haughton, Hayman, Kidston, Ross, Rugby Run, Sun Metals and Whitsunday
The constraint equations in the Q-NIL set of the form below were modified earlier today:
Q_NIL_STRGTH_XXX
For further details please contact James Lindley at james.lindley@aemo.com.au or Simon Taylor at businessdevelopment@powerlink.com.au
Ben Blake
AEMO Operations
84211CONSTRAINTS13/04/2021 02:04:45 PM
Updated generator combinations for SA system strength
AEMO MARKET NOTICE
AEMO has identified two additional combinations to meet the minimum system strength requirements in South Australia.
New combinations:
LOW_57 - 1 x Torrens Island A unit + 2 x Torrens Island B unit + Osborne GT & ST and 1300 MW limit on non-synchronous generation
LOW_58 - 3 x Torrens Island B unit + Osborne GT & ST and 1300 MW limit on non-synchronous generation
The following constraint equation has been updated with the new combinations:
S_NIL_STRENGTH_1
For more information refer to the updated limits advice (which will be published 14 April 2021):
https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice
For further details on this constraint equation please contact ben.blake@aemo.com.au
Ben Blake
AEMO Operations
AEMO has identified two additional combinations to meet the minimum system strength requirements in South Australia.
New combinations:
LOW_57 - 1 x Torrens Island A unit + 2 x Torrens Island B unit + Osborne GT & ST and 1300 MW limit on non-synchronous generation
LOW_58 - 3 x Torrens Island B unit + Osborne GT & ST and 1300 MW limit on non-synchronous generation
The following constraint equation has been updated with the new combinations:
S_NIL_STRENGTH_1
For more information refer to the updated limits advice (which will be published 14 April 2021):
https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice
For further details on this constraint equation please contact ben.blake@aemo.com.au
Ben Blake
AEMO Operations
83382CONSTRAINTS16/03/2021 03:06:24 PM
New Victorian system normal voltage stability limit
AEMO ELECTRICITY MARKET NOTICE
AEMO has identified a new voltage collapse issue in north west Victoria. The voltage collapse occurs at Kerang or Wemen on loss of the Horsham to Murra Warra to Kiamal 220 kV line. Murra Warra wind farm also trips off as a result of this contingency.
The limit will manage post-contingent flow on the Wemen to Kerang 220 kV line to be less than 310 MVA.
The new constraint equation includes generators in south-west NSW and north-west Victoria on the left-hand side as well as Murraylink. Full details on the limits advice are to be published on 17th March 2021 on the AEMO website: https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice
The following constraint equation will be implemented at 0700 hrs on Thursday 18th March 2021:
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 identified a new voltage collapse issue in north west Victoria. The voltage collapse occurs at Kerang or Wemen on loss of the Horsham to Murra Warra to Kiamal 220 kV line. Murra Warra wind farm also trips off as a result of this contingency.
The limit will manage post-contingent flow on the Wemen to Kerang 220 kV line to be less than 310 MVA.
The new constraint equation includes generators in south-west NSW and north-west Victoria on the left-hand side as well as Murraylink. Full details on the limits advice are to be published on 17th March 2021 on the AEMO website: https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice
The following constraint equation will be implemented at 0700 hrs on Thursday 18th March 2021:
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