Market Notices

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
     
96779PROTECTED EVENT05/06/2022 05:33:03 AM

Cancellation: Protected event advice - South Australia region.

AEMO ELECTRICITY MARKET NOTICE.

AEMO has identified that the conditions of the following protected event are no longer met.

Protected event: the loss of multiple transmission elements causing generation disconnection in the South Australia region during periods where destructive wind conditions are forecast by the Bureau of Meteorology.

Cancellation: 0530 hrs 05/06/2022

Constraint set revoked: I-VS_250

Refer AEMO Electricity Market Notice 96776

Manager NEM Real Time Operations
     
96776PROTECTED EVENT04/06/2022 07:16:06 PM

Protected event advice - South Australia region.

AEMO ELECTRICITY MARKET NOTICE.

AEMO has identified that the conditions of the following protected event will be met from the time specified in this notice.

Protected event: the loss of multiple transmission elements causing generation disconnection in the South Australia region during periods where destructive wind conditions are forecast by the Bureau of Meteorology.

Duration: 1915 hrs 04/06/2022 until further notice

AEMO will take action to manage the power system for the impact of the protected event.

Constraint set(s) invoked: I-VS_250

Manager NEM Real Time 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
     
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
     
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
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
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
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
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