Market Notices

119694GENERAL NOTICE31/10/2024 10:29:13 AM

Fast Frequency Response Market - Increase in R1 FCAS dispatch caps from 4th November 2024

AEMO ELECTRICITY MARKET NOTICE

Following review of the operation of the Very Fast FCAS market, from 1300 hrs AEST on Monday 4th November AEMO will increase the cap on dispatch of Very Fast Raise (R1) Contingency FCAS from 350 MW to 375 MW

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
     
119691POWER SYSTEM EVENTS31/10/2024 03:45:23 AM

Update - Non-credible contingency event - NSW region - 31/10/2024

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - NSW region - 31/10/2024

Refer AEMO Electricity Market Notice 119689

At 0345 hrs the Wagga B 330 kV bus was returned to service.

The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.

AEMO will not reclassify this event as a credible contingency event.

Manager NEM Real Time Operations
     
119689POWER SYSTEM EVENTS31/10/2024 12:49:14 AM

Non-credible contingency event - NSW region - 31/10/2024

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - NSW region - 31/10/2024

At 0028 hrs the Wagga B 330 kV bus tripped which offloaded the Wagga - Walla Walla SF 6Y 330 kV line and Wagga No.3 transformer.

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
     
119668GENERAL NOTICE30/10/2024 12:29:13 PM

Update - Lightning vulnerable lines in Vic region

AEMO ELECTRICITY MARKET NOTICE.

Update - Lightning vulnerable lines in Vic region

Refer to AEMO Electricity Market Notice 119029

At 1525 hrs on 18/10/2024 the Rowville - Yallourn No. 7 220 kV Line and the Rowville - Yallourn No. 8 220 kV Line tripped and auto-reclosed.
The cause of the trip was identified as due to Lightning.

In accordance with SO_OP_3715, AEMO now considers the Rowville - Yallourn No. 7 220 kV Line and the Rowville - Yallourn No. 8 220 kV Line to be vulnerable with a category of probable due to Lightning.

Manager NEM Real Time Operations
     
119667GENERAL NOTICE29/10/2024 09:02:13 PM

Update - Pre dispatch demand forecast - Qld region

AEMO ELECTRICITY MARKET NOTICE

Update - Pre dispatch demand forecast - Qld region

Refer market notice: 119666

The issue relating to the Queensland Pre dispatch demand forecast has been resolved.

Manager NEM Real Time Operations
     
119666GENERAL NOTICE29/10/2024 07:43:09 PM

Pre dispatch demand forecast - Qld region

AEMO ELECTRICITY MARKET NOTICE

Pre dispatch demand forecast - Qld region

AEMO is aware of an error in the Queensland pre dispatch demand forecast.
AEMO is currently working to resolve the issue.
Dispatch results are not impacted.


Manager NEM Real Time Operations
     
119567NON-CONFORMANCE28/10/2024 12:55:17 PM

NON-CONFORMANCE Region SA1 Monday, 28 October 2024

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE SA1 Region Monday, 28 October 2024

AEMO has declared the following units comprising an Aggregate Dispatch Group as non-conforming under clause 3.8.23 of the National Electricity Rules:

Units: TB2BG1, TB2BL1
Aggregate Dispatch Group: TB2HYB_ADG1
Duration: 28/10/2024 12:05 to 28/10/2024 12:55
Amount: 39 MW
Constraint: NC-S_TB2HYB_ADG1

Auto-generated on behalf of Manager NEM Real Time Operations
     
119500NON-CONFORMANCE27/10/2024 03:40:21 PM

NON-CONFORMANCE Region NSW1 Sunday, 27 October 2024

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE NSW1 Region Sunday, 27 October 2024

AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:

Unit: BW04
Duration: 27/10/2024 15:35 to 27/10/2024 15:40
Amount: -78 MW
Constraint: NC-N_BW04

Auto-generated on behalf of Manager NEM Real Time Operations
     
119458NON-CONFORMANCE26/10/2024 07:25:16 PM

NON-CONFORMANCE Region VIC1 Saturday, 26 October 2024

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE VIC1 Region Saturday, 26 October 2024

AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:

Unit: GANNB1
Duration: 26/10/2024 19:15 to 26/10/2024 19:25
Amount: -25 MW
Constraint: NC-V_GANNB1

Auto-generated on behalf of Manager NEM Real Time Operations
     
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