Market Notices

114957MARKET INTERVENTION22/02/2024 02:35:00 PM

Update - Possible intervention to manage power system security in SA region

AEMO ELECTRICITY MARKET NOTICE

Update - Possible intervention to manage power system security in SA region

Refer AEMO Electricity Market Notice 114923

The synchronous generating units currently expected to be synchronised in SA from 0030 hrs 23/02/2024 will be inadequate to maintain a secure operating state in SA .

AEMO estimates that, in the absence of sufficient market response by 1600 hrs 22/02/2024, AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA.

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
114923MARKET INTERVENTION21/02/2024 04:36:24 PM

Possible intervention to manage power system security in SA Region

AEMO ELECTRICITY MARKET NOTICE

Possible intervention to manage power system security in SA Region

The synchronous generating units currently expected to be synchronised in SA from 0030 hrs 23/02/2024 will be inadequate to maintain a secure operating state in SA.
AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA.

Manager NEM Real Time Operations
114921MARKET INTERVENTION21/02/2024 04:30:12 PM

Direction - SA region 21/02/2024

AEMO ELECTRICITY MARKET NOTICE.

Direction - SA region 21/02/2024

In accordance with section 116 of the National Electricity Law, AEMO has issued a direction to a participant in the SA region. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a).

The direction was necessary to maintain the power system in a secure operating state.

AEMO may issue or revoke additional directions in order to meet the current requirement, unless sufficient market response is provided. A further market notice will be issued when all directions related to this requirement have been cancelled.

The issue of the direction commences an AEMO intervention event. AEMO declares all trading intervals during the event to be intervention trading intervals, commencing from the interval ending 1635 hrs on 21/02/2024.

Intervention pricing does not apply to this AEMO intervention event.

Manager NEM Real Time Operations
114918MARKET INTERVENTION21/02/2024 02:51:14 PM

Update - Possible intervention to manage power system security in SA region

AEMO ELECTRICITY MARKET NOTICE

Update - Possible intervention to manage power system security in SA region

Refer AEMO Electricity Market Notice 114916

The synchronous generating units currently expected to be synchronised in SA from 0700 hrs 22/02/2024 will be inadequate to maintain a secure operating state in SA .

AEMO estimates that, in the absence of sufficient market response by 1630 hrs 21/02/2024, AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA.

Manager NEM Real Time Operations
114916MARKET INTERVENTION21/02/2024 01:14:53 PM

Possible intervention to manage power system security in SA Region

AEMO ELECTRICITY MARKET NOTICE

Possible intervention to manage power system security in SA Region

The synchronous generating units currently expected to be synchronised in SA from 0800 hrs 22/02/2024 will be inadequate to maintain a secure operating state in SA.
AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA.

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
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