Market Notices

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
     
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
     
118170PRICE ADJUSTMENT06/09/2024 07:20:01 PM

Prices for intervals on 05/09/2024 from 13:55 to 15:10 are now confirmed

AEMO ELECTRICITY MARKET NOTICE

Refer AEMO Electricity Market Notice 118149 and 118150.

PRICES ARE NOW REVISED to Market Suspension Pricing Schedule for trading intervals on 05/09/2024 from 1355 hrs to 1510 hrs.

Manager Electricity Market Monitoring
     
118150MARKET SUSPENSION05/09/2024 02:41:01 PM

Declaration of electricity market resumption

AEMO ELECTRICITY MARKET NOTICE

Declaration of electricity market resumption

Refer initial AEMO Electricity Market Notice 118149

AEMO declares that the suspension of the spot market in New South Wales, Queensland, South Australia, Tasmania and Victoria will end at 1510 hrs on 05 September 2024.

AEMO has taken sufficient steps to exclude the original event having influence on market processes and AEMO assesses that the possibility of suspending the spot market within the next 24 hours due to the same cause is minimal. AEMO also determines that it can operate the market in accordance with the provisions of the NER.

Relevant Market Notices issued under this suspension: 118149

Manager NEM Real Time Operations
     
118149MARKET SUSPENSION05/09/2024 02:31:20 PM

Declaration of electricity market suspension

AEMO ELECTRICITY MARKET NOTICE

Declaration of electricity market suspension

AEMO declares the spot market suspended in New South Wales, Queensland, South Australia, Tasmania and Victoria with Market Suspension Schedule Pricing (refer NER clause 3.14.5(b)) from Trading Interval 1355 hrs on 5 September 2024 until further notice.

Dispatch prices for the first one or two dispatch intervals of this market suspension will be reviewed manually.

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
     
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