Market Notices

115196RECALL GEN CAPACITY27/02/2024 08:27:52 AM

Request for Generator Recall Information for 29/02/2024 for QLD Region

AEMO ELECTRICITY MARKET NOTICE

Refer to AEMO Electricity Market Notice no. 115193. Additional generation in QLD could assist in alleviating the forecast LOR2 condition in NSW.

Please provide Generator Recall Information for the period 29/02/2024, by 1200 hrs 28/02/2024 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://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
     
115195RECALL GEN CAPACITY27/02/2024 08:26:49 AM

Request for Generator Recall Information for 29/02/2024 for NSW Region

AEMO ELECTRICITY MARKET NOTICE

Refer to AEMO Electricity Market Notice no. 115193.

Please provide Generator Recall Information for the period 29/02/2024, by 1200 hrs 28/02/2024 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://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
     
114889CONSTRAINTS20/02/2024 07:23:40 AM

Update to system strength constraints in North Queensland

AEMO ELECTRICITY MARKET NOTICE

Refer to market notice 110677

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 system strength equations for low North Queensland demands and all Karreya stations out of service conditions have been revised.

A revision to the constraint equations will be implemented at 1400 hrs on Tuesday 20th February 2024.

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.

Below constraint equations in the Q-NIL set will be modified:

- Q_NIL_STRGTH_KBWF
- Q_NIL_STRGTH_KBWF_I
- Q_NIL_STRGTH_HAUSF
- Q_NIL_STRGTH_HAUSF_I
- Q_NIL_STRGTH_MEWF
- Q_NIL_STRGTH_MEWF_I

AEMO Operations
     
112201RECALL GEN CAPACITY12/12/2023 10:59:40 AM

Request for Generator Recall Information for 14/12/2023 for QLD Region

AEMO ELECTRICITY MARKET NOTICE

Refer to AEMO Electricity Market Notice no. 112198. Additional generation in QLD could assist in alleviating the forecast LOR condition in NSW.

Please provide Generator Recall Information for the period 14/12/2023, by 1200 hrs on 13/12/2023 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://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
112200RECALL GEN CAPACITY12/12/2023 11:01:01 AM

Request for Generator Recall Information for 14/12/2023 for NSW Region

AEMO ELECTRICITY MARKET NOTICE

Refer to AEMO Electricity Market Notice no. 112198.

Please provide Generator Recall Information for the period 14/12/2023, by 1200 hrs on 13/12/2023 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://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
110678CONSTRAINTS02/11/2023 12:08:31 PM

Updated Victorian system normal voltage oscillation limit

AEMO ELECTRICITY MARKET NOTICE

AEMO has completed a comprehensive review on voltage oscillation issue in south-west Victoria with consideration of wider asynchronous generators in the area. The voltage oscillation occurs in the south-west region when Heywood interconnector flow is higher than 500 MW from South Australia to Victoria.

The limit will manage the total MW output from Stockyard Hill, Dundonnell and Macarthur wind farms during period when flow on Heywood interconnector higher than 500 MW towards Victoria.

The new constraint equation includes asynchronous generators in south-west Victoria on the left-hand side. This limit is to replace the existing south-west Victoria voltage oscillation limit. Full details on the limits advice are to be published shortly on the AEMO website: https://aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice

The following changes will be implemented at 1000 hrs on Friday 3rd November 2023
? Constraint equation will be removed from constraint set V-NIL:
V_SHWF_FLT_286

? Constraint equation will be implemented and added to constraint set V-NIL:
V_SH_DD_MAC_FLT_965

For full details on the formulation, the new constraint equation has now been loaded into AEMO's pre-production systems.

For further details on this change please contact terry.liu@aemo.com.au

Terry Liu
AEMO Operations
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
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
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
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