Market Notices

115047RESERVE NOTICE23/02/2024 04:12:17 PM

Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 23/02/2024

AEMO ELECTRICITY MARKET NOTICE

Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 23/02/2024

An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the NSW region from 1600 hrs.
The Actual LOR1 condition is forecast to exist until 1830 hrs

The capacity reserve requirement is 1370 MW
The minimum capacity reserve available is 1252 MW

Manager NEM Real Time Operations
114930RESERVE NOTICE21/02/2024 07:45:35 PM

Cancellation of Actual (LOR1) condition in the SA region - 21/02/2024

AEMO ELECTRICITY MARKET NOTICE

Cancellation of Actual (LOR1) condition in the SA region - 21/02/2024

The Actual LOR1 Condition in the SA Region advised in AEMO Electricity Market Notice No.114929 is cancelled at 1945 hrs 21/02/2024.

Manager NEM Real Time Operations
114929RESERVE NOTICE21/02/2024 07:22:43 PM

Update - Actual Lack Of Reserve Level 1 (LOR1) in the SA region - 21/02/2024

AEMO ELECTRICITY MARKET NOTICE

Update - Actual Lack Of Reserve Level 1 (LOR1) in the SA region - 21/02/2024

Refer AEMO Electricity Market Notice 114927

An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the SA region from 1900 hrs.
The Actual LOR1 condition is not forecast in Pre Dispatch

The capacity reserve requirement is 428 MW
The minimum capacity reserve available is 277 MW

Manager NEM Real Time Operations
114927RESERVE NOTICE21/02/2024 06:47:19 PM

Actual Lack Of Reserve Level 1 (LOR1) in the SA region - 21/02/2024

AEMO ELECTRICITY MARKET NOTICE

Actual Lack Of Reserve Level 1 (LOR1) in the SA region - 21/02/2024

An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the SA region from 1830 hrs.
The Actual LOR1 condition is not forecast in Pre Dispatch

The capacity reserve requirement is 431 MW
The minimum capacity reserve available is 414 MW

Manager NEM Real Time Operations
114889CONSTRAINTS20/02/2024 07:23:40 AM

Update to system strength constraints in North Queensland

AEMO ELECTRICITY MARKET NOTICE

Refer to market notice 110677

AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
Due to commissioning of new feeder 8905 (H13 Ross - H39 Woree) 275kV line in Far North Queensland, the system normal system strength equations for low North Queensland demands and all Karreya stations out of service conditions have been revised.

A revision to the constraint equations will be implemented at 1400 hrs on Tuesday 20th February 2024.

The new system strength combinations have now published in a limits advice document on AEMO's website. For more information refer to the new limits advice: https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice

This advice contains all the combinations for Queensland for system normal cases.

Below constraint equations in the Q-NIL set will be modified:

- Q_NIL_STRGTH_KBWF
- Q_NIL_STRGTH_KBWF_I
- Q_NIL_STRGTH_HAUSF
- Q_NIL_STRGTH_HAUSF_I
- Q_NIL_STRGTH_MEWF
- Q_NIL_STRGTH_MEWF_I

AEMO Operations
114759POWER SYSTEM EVENTS15/02/2024 02:06:23 PM

Update: Significant power system event - Victoria Region - Hazelwood transformers and Hazelwood PS - Jeeralang No 2 220kV -13/02/2024

AEMO ELECTRICITY MARKET NOTICE.

Update - Significant power system event - 13/02/2024

Refer AEMO Electricity Market Notices 114685

At 1247 hrs 15/02/2024 the Hazelwood PS - Jeeralang No 2 220kV line was returned to service in the Victoria region

All of the equipment has now been returned to service.

The cause of this significant power system 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
114685POWER SYSTEM EVENTS13/02/2024 10:37:34 PM

Update: Significant power system event - Victoria Region - Hazelwood transformers -13/02/2024

AEMO ELECTRICITY MARKET NOTICE.

At 1827 hrs 13/02/2024 At Hazelwood terminal station in the Victoria region, the following plant was returned to service.

The No1 500 kV / 220 kV transformer
The No2 500 kV / 220 kV transformer
The No3 500 kV / 220 kV transformer
The No4 500 kV / 220 kV transformer

The Jeeralang - Hazelwood No 2 220kV line remains out of service.

Refer to Network outage scheduler (NOS) for further details.

Refer Market notice 114641 and 114643

This Market Notice is issued in accordance with NER clause 4.8.3.


Manager NEM Real Time Operations
114643POWER SYSTEM EVENTS13/02/2024 04:13:14 PM

Significant power system event - Victoria Region - Hazelwood transformers -13/02/2024

AEMO ELECTRICITY MARKET NOTICE.

At 1543 hrs 13/02/2024 At Hazelwood terminal station in the Victoria region the following plant tripped.

The No1 500 kV / 220 kV transformer
The No2 500 kV / 220 kV transformer
The No3 500 kV / 220 kV transformer
The No4 500 kV / 220 kV transformer
The Jeeralang Hazelwood No2 220kV line.

Refer Market notice 114641

Updates will be provided as additional information becomes available.

This Market Notice is issued in accordance with NER clause 4.8.3.


Manager NEM Real Time Operations
114642POWER SYSTEM EVENTS13/02/2024 04:14:12 PM

Non-credible contingency event - TAS region - 13/02/2024

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - TAS region - 13/02/2024

At 1602 hrs the Norwood -Scottsdale 110kV line and the Norwood - Scottsdale -Derby 110kV line tripped.

AEMO did not instruct load shedding.

AEMO has been advised 8MW of electrical load and 24MW of generation has been disconnected.

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

Manager NEM Real Time Operations
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