Market Notices

117281MARKET INTERVENTION03/07/2024 03:16:12 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 117278

The synchronous generating units currently expected to be synchronised in SA from 0000 hrs 05/07/2024 will be inadequate to maintain a secure operating state in SA .

AEMO estimates that, in the absence of sufficient market response by 1300 hrs 04/07/2024, 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
117278MARKET INTERVENTION03/07/2024 01:46:31 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 0000 hrs 05/07/2024 will be inadequate to maintain sufficient system strength in SA and hence a secure operating state.
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
117248MARKET INTERVENTION29/06/2024 03:59:59 AM

Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 27/06/2024

AEMO ELECTRICITY MARKET NOTICE

Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 27/06/2024

Refer Market Notice 117221

The AEMO Intervention Event and all associated directions are cancelled from 0400 hrs 29/06/2024

Manager NEM Real Time Operations
117243INTER-REGIONAL TRANSFER28/06/2024 04:54:33 PM

Inter-regional transfer limit variation - Dumaresq No. 1 330kV SVC - NSW region - 28/06/2024

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Dumaresq No. 1 330kV SVC- NSW region - 28/06/2024

At 1649 hrs 28/06/2024 there was a short notice outage of the Dumaresq No. 1 330kV SVC.

The following constraint set invoked at 1650 hrs 28/06/2024
N-DM_SVC

This constraint set contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,NSW1-QLD1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations
117242MARKET INTERVENTION28/06/2024 04:25:03 PM

Update - Direction - SA Region - 27/06/2024

AEMO ELECTRICITY MARKET NOTICE

Update - Direction - SA Region - 27/06/2024

Refer Market Notice 117221

The AEMO intervention event that commenced from interval ending 1605 hrs on 27/06/2024 is continuing.

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.

Manager NEM Real Time Operations
117241INTER-REGIONAL TRANSFER28/06/2024 04:12:58 PM

Cancellation - Inter-regional transfer limit variation - constraint automation to manage Power System Security in VIC region - 28/06/2024

AEMO ELECTRICITY MARKET NOTICE

Cancellation - Inter-regional transfer limit variation - constraint automation to manage Power System Security in VIC region - 28/06/2024

Refer AEMO Electricity Market Notice 117239.

Constraint set CA_SYDS_5590C0E2 revoked 1530 hrs.

Manager NEM Real Time Operations
117240INTER-REGIONAL TRANSFER28/06/2024 02:20:05 PM

Inter-regional transfer limit variation - Liddell to Tomago 82 330kV Line - NSW region - 28/06/2024

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Liddell to Tomago 82 330kV Line - NSW region - 28/06/2024

At 1407 hrs 28/06/2024 there was an unplanned outage of Liddell to Tomago 82 330kV Line.

The following constraint set invoked at 1415 hrs 28/06/2024
N-LDTM_82_OPEN

This constraint set contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,NSW1-QLD1,VIC1-NSW1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations
117239INTER-REGIONAL TRANSFER28/06/2024 02:07:43 PM

Inter-regional transfer limit variation - constraint automation to manage Power System Security in VIC region - 28/06/2024

AEMO ELECTRICITY MARKET NOTICE

In order to maintain the power system in a secure operating state in the VIC region, AEMO has invoked automated constraint set CA_SYDS_5590C0E2 from 1355hrs until further notice.

This constraint set contains equations with the following interconnector on the LHS;

V-S-MNSP1

Refer to AEMO Network Outage Scheduler (NOS) for further information.

Manager NEM Real Time Operations
117221MARKET INTERVENTION27/06/2024 04:00:52 PM

Direction - SA region 27/06/2024

AEMO ELECTRICITY MARKET NOTICE.

Direction - SA region 27/06/2024

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 1605 hrs on 27/06/2024.

Intervention pricing does not apply to this AEMO intervention event.

Manager NEM Real Time Operations
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