Market Notices

115833POWER SYSTEM EVENTS27/03/2024 03:48:18 PM

Non-credible contingency event - SA region - Torrens Island 27/03/2024

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - SA region - Torrens Island 27/03/2024

At 1529 hrs there was an unplanned outage of the following elements:
Torrens Island A 275 kV West Bus
Torrens Island AC3 275 kV CB

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
115805GENERAL NOTICE26/03/2024 08:15:10 AM

Cancellation - Severe Space Weather Watch Notification 25/03/2024

AEMO ELECTRICITY MARKET NOTICE

Cancellation - Severe Space Weather Watch Notification 25/03/2024

Refer to MN 115774

The Australian Bureau of Meteorology's Space Weather forecasting centre has cancelled the following notification.

Severe space weather watch: A recent Coronal Mass Ejection associated with a solar flare is anticipated to impact the Earth within the next 48 hours.


Manager NEM Real Time Operations
115794POWER SYSTEM EVENTS25/03/2024 03:48:06 PM

Non-credible contingency event - SA region - Torrens Island 25/03/2024

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - SA region - Torrens Island 25/03/2024

At 1412 hrs there was an unplanned outage of the following elements:
Torrens Island BW3 275 kV CB
Torrens Island BC3 275 kV CB
Torrens Island - Lefevre 275 kV line

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
115783POWER SYSTEM EVENTS25/03/2024 02:17:51 PM

Update - Non-credible contingency event - SA region - 25/03/2024

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - SA region - 25/03/2024

Refer AEMO Electricity Market Notice 115777

At 1350 hrs the Davenport - Brinkworth 275 kV line, Brinkworth No 3 275/132 kV transformer
and Brinkworth - Templers West 275 kV line 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
115777POWER SYSTEM EVENTS25/03/2024 09:27:07 AM

Non-credible contingency event - SA region - 25/03/2024

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - SA region - 25/03/2024

At 0810 hrs there was an unplanned outage of the following elemets:
Davenport - Brinkworth 275 kV line
Brinkworth No 3 275/132 kV transformer
Brinkworth - Templers West 275 kV line

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
115774GENERAL NOTICE25/03/2024 04:33:09 AM

Severe Space Weather Watch Notification 25/03/2024

AEMO ELECTRICITY MARKET NOTICE

Severe Space Weather Watch Notification 25/03/2024

The Australian Bureau of Meteorology's Space Weather Forecasting Centre has issued the following notification.

Severe space weather watch: A recent space weather event is anticipated to impact the Earth within the next 48 hours.

The effects are expected to be significant.

Increased awareness of critical infrastructure is advised.

Please monitor the SWS website for further updates at https://www.sws.bom.gov.au

If required; actions will be taken as per AEMO's system operating procedure SO_OP3715 Power System Security Guidelines.

Manager NEM Real Time Operations
115771POWER SYSTEM EVENTS24/03/2024 04:39:39 PM

Update - Non-credible contingency event - SA region - 14/03/2024

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - SA region - 14/03/2024

Refer AEMO Electricity Market Notice 115624

At 1635 hrs the Tungkillo - Robertstown No. 1 275 kV Line and the Tungkillo East 275 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
115624POWER SYSTEM EVENTS14/03/2024 11:47:59 PM

Non-credible contingency event - SA region - 14/03/2024

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - SA region - 14/03/2024

At 2307 hrs the Tungkillo - Robertstown No. 1 275 kV Line and the Tungkillo East 275 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
115611GENERAL NOTICE13/03/2024 11:54:44 AM

Fast Frequency Response Market - Increase in R1 FCAS dispatch cap from 18 March 2024.

AEMO ELECTRICITY MARKET NOTICE

Following review of the operation of the Very Fast FCAS market, from 1300 hrs AEST on Monday 18 March AEMO will:

Increase the cap on dispatch of Very Fast Raise (R1) Contingency FCAS from 225 MW to 250 MW

Retain the existing cap on dispatch of Very Fast Lower (L1) Contingency FCAS at 125 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
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