Market Notices

118166POWER SYSTEM EVENTS06/09/2024 12:38:00 PM

Non-credible contingency event - VIC region - 06/09/2024

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - VIC region - 06/09/2024

At 1222 hrs the Loy Yang PS No. 4 500 kV bus tripped.

AEMO did not instruct load shedding.

AEMO has not been advised of any disconnection of bulk electrical load.

The cause of this non credible contingency event is not known at this stage.


Manager NEM Real Time Operations
     
118145GENERAL NOTICE05/09/2024 10:06:25 AM

Fast Frequency Response Market - Removal of L1 FCAS dispatch cap from 9th September 2024

AEMO ELECTRICITY MARKET NOTICE

Following review of the operation of the Very Fast FCAS market, from 1300 hrs AEST on Monday 9th September AEMO will remove the 225 MW cap on dispatch of Very Fast Lower (L1) Contingency FCAS.

The 225 MW cap on dispatch of L1 FCAS sits well above typical disaptch volumes, and no immediate impact is expected from this change.

No other changes to the dispatch of Very Fast FCAS or FCAS constraint equation changes will be made on this date.

For information on the Fast Frequency Response (FFR) initiative please visit the website at: https://www.aemo.com.au/initiatives/major-programs/fast-frequency-response

Andrew Groom
AEMO Operations
     
118131INTER-REGIONAL TRANSFER05/09/2024 07:35:19 AM

Inter-Regional Transfer limit variation - Directlink - NSW Region

AEMO ELECTRICITY MARKET NOTICE

Inter-Regional Transfer limit variation - Directlink - NSW Region

There has been an unplanned outage of the No 1 Leg of Directlink .

The following constraint set was invoked at 0735 hrs 05/09/2024

N-MBTE_1

The constraint set contains the following interconnector on the left hand side.

N-Q-MNSP1

Refer AEMO Network Outage Scheduler (NOS) for further details.

Manager NEM Real Time Operations
     
118070INTER-REGIONAL TRANSFER02/09/2024 03:36:51 PM

Inter-regional transfer limit variation - Lismore-Lismore132 9W1 132kV Line - NSW region - 02/09/2024

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Lismore-Lismore132 9W1 132kV Line - NSW region - 02/09/2024

At 1516 hrs 02/09/2024 there was an unplanned outage of Lismore-Lismore132 9W1 132kV Line

The following constraint set(s) invoked at 1525 hrs 02/09/2024
N-LSLS_9U8

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
     
118061INTER-REGIONAL TRANSFER02/09/2024 01:57:46 PM

Inter-regional transfer limit variation - Armidale - Sapphire 8E 330 kV Line - NSW region - 02/09/2024

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Armidale - Sapphire 8E 330 kV Line - NSW region - 02/09/2024

A planned outage of Armidale - Sapphire 8E 330 kV Line in the NSW region was scheduled from 1630 hrs 31/08/2024 to 1800 hrs 02/09/2024.

The outage has been rescheduled for 1630 hrs 31/08/2024 to 1200 hrs 03/09/2024.

The following constraint set(s) invoked at 1630 hrs 31/08/2024
N-ARSR_8E, N-DM_SVC, N-TW_SVC

This constraint set(s) contains equations with the following interconnectors on the LHS.
NSW1-QLD1,T-V-MNSP1,N-Q-MNSP1,V-S-MNSP1,V-SA

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations
     
118037GENERAL NOTICE01/09/2024 09:29:36 PM

Network Augmentation Commissioned - NSW Region - 01/09/2024

AEMO ELECTRICITY MARKET NOTICE

Network Augmentation Commissioned - NSW Region - 01/09/2024

At 2125 hrs. Buronga -Redcliffs X9 220 kV line has been commissioned.
At 2125 hrs. Buronga -Redcliffs OX1 220 kV line has been de-commissioned.

Manager NEM Real Time Operations
     
118026INTER-REGIONAL TRANSFER01/09/2024 10:39:29 AM

Inter-regional transfer limit variation - Armidale - Sapphire 8E 330kv Line- NSW region - 01/09/2024

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Armidale - Sapphire 8E 330kv Line - NSW region - 01/09/2024

A planned outage of Armidale - Sapphire 8E 330kv Line in the NSW region was scheduled from 1630 hrs 31/08/2024 to 0910 hrs 02/09/2024.

The outage has been rescheduled for 1630 hrs 31/08/2024 to 1800 hrs 02/09/2024.


The following constraint set(s) invoked at 1630 hrs 31/08/2024
N-ARSR_8E
N-TW_SVC
N-DM_SVC


This constraint set(s) contains equations with the following interconnectors on the LHS.
NSW1-QLD1,T-V-MNSP1,N-Q-MNSP1,V-S-MNSP1,V-SA

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations
     
118016INTER-REGIONAL TRANSFER31/08/2024 04:31:20 PM

Inter-regional transfer limit variation - Armidale - Sapphire 8E 330 kV line - NSW region - 31/08/2024

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Armidale - Sapphire 8E 330 kV line - NSW region - 31/08/2024

At 1630 hrs 31/08/2024 there was a short notice outage of Armidale - Sapphire 8E 330 kV line.

The following constraint set(s) invoked at 1630 hrs 31/08/2024
N-ARSR_8E, N-TW_SVC

This constraint set(s) contains equations with the following interconnectors on the LHS.
NSW1-QLD1,T-V-MNSP1,N-Q-MNSP1,V-S-MNSP1,V-SA

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations
     
117923GENERAL NOTICE28/08/2024 12:46:15 PM

QNI Minor testing (NSW to Qld) 28th August 2024

AEMO ELECTRICITY MARKET NOTICE

Refer to market notice 117650

There is an opportunity for testing QNI Minor for flows from NSW to Qld up to 850 MW on Wednesday 28th August 2024 from 1300 to 1700hrs.

This test includes a trip and reclose of a line in northern NSW.

Please also refer to the published formal QNI minor testing information at the following link:
https://www.aemo.com.au/consultations/current-and-closed-consultations/qld-to-nsw-interconnector-qni-upgrade

Ben Blake
AEMO Operations
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