Market Notices

118427GENERAL NOTICE24/09/2024 03:38:49 PM

Network Augmentation Commissioned - NSW Region - 24/09/2024

AEMO ELECTRICITY MARKET NOTICE

Network Augmentation Commissioned - NSW Region - 24/09/2024

At 1535 hrs Buronga - Redcliffs X1 220 kV line has been commissioned.


Manager NEM Real Time Operations
     
118342GENERAL NOTICE20/09/2024 04:43:35 PM

Update - Lightning vulnerable lines in TAS region

AEMO ELECTRICITY MARKET NOTICE.

Update - Lightning vulnerable lines in TAS region

Refer to AEMO Electricity Market Notice 118320 ,118321, 118322

At 1340 hrs 19/09/2024 the Gordon - Chapel St No 1 220 kV line and the Gordon - Chapel St No 2 220 kV line tripped.
The cause of the trip was identified as due to Lightning.

In accordance with SO_OP_3715, AEMO now considers the Gordon - Chapel St No 1 220 kV line and the Gordon - Chapel St No 2 220 kV line to be vulnerable with a category of Vulnerability due to Lightning.

Manager NEM Real Time Operations
     
118323CONSTRAINTS19/09/2024 04:20:22 PM

Update to system normal constraint equation in NSW for transient voltage stability in south-west NSW

AEMO ELECTRICITY MARKET NOTICE

Refer to market notice 92840.

Transgrid has advised AEMO of an update to the transient voltage stability limit in south-west NSW for loss of Darlington Point to Wagga (63) 330 kV line. The limit will include terms for the Darlington Point and Riverina BESS.

The following constraint equation will be updated with the above changes at 1100 hrs Friday 20th September 2024.
N::N_NIL_63

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

For further details on these constraint equation please contact ben.blake@aemo.com.au

Ben Blake
AEMO Operations
     
118319GENERAL NOTICE19/09/2024 01:45:31 PM

Planned outage of Tailem Bend - South East 275 kV transmission line in the South Australia region beginning on 20/09/2024

AEMO ELECTRICITY MARKET NOTICE

The Tailem Bend - South East No 1 275 kV line in the South Australian (SA) region is planned to be out of service from 2100 hrs on 20/09/2024 to 0530 hrs on 21/09/2024.

A credible contingency event during this planned outage could cause synchronous separation of the SA region from the rest of the NEM.

During this planned outage:
- Power transfer will be restricted across the VIC - SA interconnector (Heywood interconnector); and
- Post contingent FCAS will be sourced within SA following Separation event.

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

AEMO Operations
     
118299RESERVE NOTICE16/09/2024 07:16:21 PM

Cancellation of Actual (LOR1) condition in the NSW region - 16/09/2024

AEMO ELECTRICITY MARKET NOTICE

Cancellation of Actual (LOR1) condition in the NSW region - 16/09/2024

The Actual LOR1 Condition in the NSW Region advised in AEMO Electricity Market Notice No.118298 is cancelled at 1915 hrs 16/09/2024.

Manager NEM Real Time Operations
     
118298RESERVE NOTICE16/09/2024 06:16:31 PM

Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 16/09/2024

AEMO ELECTRICITY MARKET NOTICE

Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 16/09/2024

An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the NSW region from 1800 hrs.
The Actual LOR1 condition is forecast to exist until 1900 hrs

The capacity reserve requirement is 1400 MW
The minimum capacity reserve available is 1274 MW

Manager NEM Real Time Operations
     
118226GENERAL NOTICE10/09/2024 05:55:51 PM

Network Augmentation Commissioned - NSW Region - 10/09/2024

AEMO ELECTRICITY MARKET NOTICE

Network Augmentation Commissioned - NSW Region - 10/09/2024

At 1750 hrs, the following equipment at Buronga 330 kV substation has been commissioned:

1) Buronga 330 kV A bus.
2) Buronga 330 kV B bus.
3) Buronga No 1 330 kV capacitor.
4) Buronga No 2 330 kV capacitor.
5) Buronga No 7 330/220 kV transformer.

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
     
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
     
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