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101018CONSTRAINTS16/08/2022 09:23:02 AM
Update to System strength requirements in North Queensland
AEMO ELECTRICITY MARKET NOTICE
Refer to market notice 93841
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
Due to reduced numbers of Gladstone units online, the system normal equations have been revised to include below combination.
-If Stanwell >=2, Stanwell + Calllide >=3, Gladstone >= 1, Stanwell + Callide + Gladstone >= 7, Kareeya >=2, Haughton Syncon status = ON, North Queensland load >=250 MW,
Ross+FNQ load >=100 MW, limit Mt Emerald Windfarm to 80% and no limit to other solar farms.
A revision to the constraint equations will be implemented at 1100 hrs on Tuesday 16th August 2022.
The new combinations will be published in a limits advice document on AEMO's website on Wednesday 17th August 2022.
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_CLRSF
Q_NIL_STRGTH_COLSF
Q_NIL_STRGTH_DAYSF
Q_NIL_STRGTH_HAMSF
Q_NIL_STRGTH_HAUSF
Q_NIL_STRGTH_HAYSF
Q_NIL_STRGTH_KEP
Q_NIL_STRGTH_KIDSF
Q_NIL_STRGTH_MEWF
Q_NIL_STRGTH_RUGSF
Q_NIL_STRGTH_RRSF
Q_NIL_STRGTH_SMSF
Q_NIL_STRGTH_WHTSF
AEMO Operations
Refer to market notice 93841
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
Due to reduced numbers of Gladstone units online, the system normal equations have been revised to include below combination.
-If Stanwell >=2, Stanwell + Calllide >=3, Gladstone >= 1, Stanwell + Callide + Gladstone >= 7, Kareeya >=2, Haughton Syncon status = ON, North Queensland load >=250 MW,
Ross+FNQ load >=100 MW, limit Mt Emerald Windfarm to 80% and no limit to other solar farms.
A revision to the constraint equations will be implemented at 1100 hrs on Tuesday 16th August 2022.
The new combinations will be published in a limits advice document on AEMO's website on Wednesday 17th August 2022.
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_CLRSF
Q_NIL_STRGTH_COLSF
Q_NIL_STRGTH_DAYSF
Q_NIL_STRGTH_HAMSF
Q_NIL_STRGTH_HAUSF
Q_NIL_STRGTH_HAYSF
Q_NIL_STRGTH_KEP
Q_NIL_STRGTH_KIDSF
Q_NIL_STRGTH_MEWF
Q_NIL_STRGTH_RUGSF
Q_NIL_STRGTH_RRSF
Q_NIL_STRGTH_SMSF
Q_NIL_STRGTH_WHTSF
AEMO Operations
99413CONSTRAINTS24/06/2022 01:18:44 PM
Update to SA to Victoria limits for Para SVC outage
AEMO ELECTRICITY MARKET NOTICE
AEMO has been working with ElectraNet on a review of the oscillatory stability limits for the Para SVC outage for flows from South Australia to Victoria.
From that review the these limits from SA to Vic have been increased by 50 MW. The limit on Heywood has changed to 470 MW and for Heywood + Murraylink to 620 MW when the oscillatory stability monitoring is in service. If oscillatory monitoring is not in service the 50 MW increase will not apply.
The revised constraints were implemented in the constraint set S-PA_VC1 at 1300 hrs Friday 24th June 2022:
S:VS_PASVC_570OSC_AT
S:VS_PA_SVC_620
S:V_PASVC_420OSC_AT
S:V_PA_SVC_470
SV_470_DYN
AEMO and ElectraNet are continuing their studies on the limits for the Para SVC outage to determine if further increases can be made.
For further details on this this change please contact ben.blake@aemo.com.au
Ben Blake
AEMO Operations
AEMO has been working with ElectraNet on a review of the oscillatory stability limits for the Para SVC outage for flows from South Australia to Victoria.
From that review the these limits from SA to Vic have been increased by 50 MW. The limit on Heywood has changed to 470 MW and for Heywood + Murraylink to 620 MW when the oscillatory stability monitoring is in service. If oscillatory monitoring is not in service the 50 MW increase will not apply.
The revised constraints were implemented in the constraint set S-PA_VC1 at 1300 hrs Friday 24th June 2022:
S:VS_PASVC_570OSC_AT
S:VS_PA_SVC_620
S:V_PASVC_420OSC_AT
S:V_PA_SVC_470
SV_470_DYN
AEMO and ElectraNet are continuing their studies on the limits for the Para SVC outage to determine if further increases can be made.
For further details on this this change please contact ben.blake@aemo.com.au
Ben Blake
AEMO Operations
96682RECALL GEN CAPACITY31/05/2022 03:22:18 PM
Request for Generator Recall Information for 02/06/2022 for NSW Region
AEMO ELECTRICITY MARKET NOTICE
Refer to AEMO Electricity Market Notice 96666.
Please provide Generator Recall Information for 02/06/2022 by 1400 hrs AEST on 01/06/2022 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 96666.
Please provide Generator Recall Information for 02/06/2022 by 1400 hrs AEST on 01/06/2022 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
96681RECALL GEN CAPACITY31/05/2022 03:23:06 PM
Request for Generator Recall Information for 02/06/2022 for QLD Region
AEMO ELECTRICITY MARKET NOTICE
Refer to AEMO Electricity Market Notice 96668.
Please provide Generator Recall Information for 02/06/2022 by 1400 hrs AEST on 01/06/2022 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 96668.
Please provide Generator Recall Information for 02/06/2022 by 1400 hrs AEST on 01/06/2022 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
95690CONSTRAINTS01/04/2022 09:00:20 AM
Update to Vic to NSW transient stability limit
AEMO ELECTRICITY MARKET NOTICE
AEMO has completed a comprehensive review of the system normal transient stability limit for loss of a Hazelwood to South Morang 500 kV line for flows from Victoria to New South Wales. The revised limit takes into account a larger range of inertias, demands, interconnector flows and many different plants online. The revised limit is generally lower than the existing limit due to lower demands and inertias in the Victorian system since the last review back in 2016. However, it is expected the revised limit will normally be under-cut by the Victorian export voltage collapse limit for loss of all APD potlines.
The revised constraint equation includes generators in southern NSW and generation in Victoria on the left-hand side as well as interconnectors. Full details on the limits advice are to be published on 04/04/2022 on the AEMO website: https://aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice
This revised limit will be implemented to the Victorian system normal constraint set V-NIL at 1000 hrs Tuesday 5th April 2022, with the following changes:
Constraint equations to remove:
- V::N_NIL_V
- V::N_NIL_S
- V::N_NIL_Q1
- V::N_NIL_Q2
Constraint equations to add:
- V::N_NIL_V1
- V::N_NIL_V2
- V::N_NIL_O1
- V::N_NIL_O2
These constraint equation changes have already been applied in AEMO's PreProduction systems.
For further details on the constraint equations please contact terry.liu@aemo.com.au
Terry Liu
AEMO Operations
AEMO has completed a comprehensive review of the system normal transient stability limit for loss of a Hazelwood to South Morang 500 kV line for flows from Victoria to New South Wales. The revised limit takes into account a larger range of inertias, demands, interconnector flows and many different plants online. The revised limit is generally lower than the existing limit due to lower demands and inertias in the Victorian system since the last review back in 2016. However, it is expected the revised limit will normally be under-cut by the Victorian export voltage collapse limit for loss of all APD potlines.
The revised constraint equation includes generators in southern NSW and generation in Victoria on the left-hand side as well as interconnectors. Full details on the limits advice are to be published on 04/04/2022 on the AEMO website: https://aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice
This revised limit will be implemented to the Victorian system normal constraint set V-NIL at 1000 hrs Tuesday 5th April 2022, with the following changes:
Constraint equations to remove:
- V::N_NIL_V
- V::N_NIL_S
- V::N_NIL_Q1
- V::N_NIL_Q2
Constraint equations to add:
- V::N_NIL_V1
- V::N_NIL_V2
- V::N_NIL_O1
- V::N_NIL_O2
These constraint equation changes have already been applied in AEMO's PreProduction systems.
For further details on the constraint equations please contact terry.liu@aemo.com.au
Terry Liu
AEMO Operations
94226RECALL GEN CAPACITY30/01/2022 06:50:14 PM
Request for Generator Recall Information for the period for 02/02/2022 for OLD Region
AEMO ELECTRICITY MARKET NOTICE
Refer to AEMO Electricity Market Notice 94225
Please provide Generator Recall Information for 02/02/2022 by 1200 hrs EST on 31/01/2022 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 94225
Please provide Generator Recall Information for 02/02/2022 by 1200 hrs EST on 31/01/2022 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
94211RECALL GEN CAPACITY30/01/2022 11:15:30 AM
Update - Request for Generator Recall Information for the period for 01/02/2022 for QLD Region
AEMO ELECTRICITY MARKET NOTICE
Correction to external reference in AEMO Electricity Market Notice 94209. It should read Qld.
Refer to AEMO Electricity Market Notice 94205
Please provide Generator Recall Information for 01/02/2022 by 1200 hrs EST on 31/01/2022 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
Correction to external reference in AEMO Electricity Market Notice 94209. It should read Qld.
Refer to AEMO Electricity Market Notice 94205
Please provide Generator Recall Information for 01/02/2022 by 1200 hrs EST on 31/01/2022 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
94210RECALL GEN CAPACITY30/01/2022 10:54:33 AM
Request for Generator Recall Information for the period for 01/02/2022 for NSW Region
AEMO ELECTRICITY MARKET NOTICE
Refer to AEMO Electricity Market Notice 94208
Please provide Generator Recall Information for 01/02/2022 by 1200 hrs EST on 31/01/2022 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 94208
Please provide Generator Recall Information for 01/02/2022 by 1200 hrs EST on 31/01/2022 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
94209RECALL GEN CAPACITY30/01/2022 10:53:37 AM
Request for Generator Recall Information for the period for 01/02/2022 for OLD Region
AEMO ELECTRICITY MARKET NOTICE
Refer to AEMO Electricity Market Notice 94205
Please provide Generator Recall Information for 01/02/2022 by 1200 hrs EST on 31/01/2022 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 94205
Please provide Generator Recall Information for 01/02/2022 by 1200 hrs EST on 31/01/2022 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