Market Notices

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 29/02/2024

In order to maintain the power system in a secure operating state in the NSW region, AEMO has invoked automated constraint set CA_BRIS_54F2D1C0 from 1850 hrs until further notice.

This constraint set contains equations with the following interconnector on the LHS;

VIC1-NSW1

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 29/02/2024

In order to maintain the power system in a secure operating state in the NSW region, AEMO has invoked automated constraint set CA-BRIS_54F2ABFD_1 from 1610 hrs until further notice.

This constraint set contains equations with the following interconnector on the LHS;

VIC1-NSW1

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation -275kV South Pine SVC - QLD region - 28/02/2024

At 1425 hrs 28/02/2024 there was an unplanned outage of 275kV South Pine SVC.

Constraint set Q-SP_VC invoked from 1435 hrs.

The constraint set contains equations with the following interconnector on the LHS:

N-Q-MNSP1
NSW1-QLD1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - constraint automation to manage Power System Security in VIC region - 28/02/2024

In order to maintain the power system in a secure operating state in the VIC region, AEMO has invoked automated constraint set CA_SYDS_54F10C1F from 1035 hrs until further notice.

This constraint set contains equations with the following interconnector on the LHS;

V-S_MNSP1
V-SA
VIC1-NSW1

Refer to AEMO Network Outage Scheduler (NOS) for further information.

Manager NEM Real Time Operations

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

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

AEMO ELECTRICITY MARKET NOTICE

At 1929 hrs 25/02/2024 in the Victoria region the Moorabool Sydenham No1 500 kV line returned to service on temporary towers.

The Moorabool Sydenham No2 500 kV line remains out of service

Constraint set changes.

Invoked:
V-MLSY_NOEMTT_R

Revoked:
V-X_MLSY_MLTS_TIE

This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1
V-SA
V-S-MNSP1
VIC1- NSW1

Refer Market Notices 114577, 114768, 114686 and 114770

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations

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

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Directlink DC2 - NSW region - 19/02/2024


A planned outage of Directlink DC2 in the NSW region was scheduled from 2000 hrs 16/02/2024 to 1701 hrs 20/02/2024.

The outage has been completed and Directlink DC2 returned to service at 1425 hrs 19/02/2024.

The following constraint set(s) revoked at 1425 hrs 19/02/2024
N-MBTE_1

This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations