Market Notices

112854INTER-REGIONAL TRANSFER28/12/2023 07:32:53 PM

Inter-regional transfer limit variation - Hummocks - Waterloo 132 kV line - SA region - 28/12/2023

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Hummocks - Waterloo 132 kV line - SA region - 28/12/2023

At 1913 hrs 28/12/2023 there was an unplanned outage of the Hummocks - Waterloo 132 kV line.

The following constraint set(s) invoked at 1925 hrs 28/12/2023
S-HUWT

This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S-MNSP1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations
112853INTER-REGIONAL TRANSFER28/12/2023 07:07:21 PM

Cancellation - Inter-regional transfer limit variation - constraint automation to manage Power System Security in QLD region - 28/12/2023

AEMO ELECTRICITY MARKET NOTICE

Cancellation - Inter-regional transfer limit variation - constraint automation to manage Power System Security in QLD region - 28/12/2023

Refer AEMO Electricity Market Notice 112852.

Constraint set CA_SYDS_549FBEF5 revoked 1850 hrs.

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

N-Q-MNSP1


Manager NEM Real Time Operations
112852INTER-REGIONAL TRANSFER28/12/2023 06:44:09 PM

Inter-regional transfer limit variation - constraint automation to manage Power System Security in QLD region - 28/12/2023

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - constraint automation to manage Power System Security in QLD region - 28/12/2023

In order to maintain the power system in a secure operating state in the QLD region, AEMO has invoked automated constraint set CA_SYDS_549FBEF5 from 1830 hrs until further notice.

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

N-Q-MNSP1

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

Manager NEM Real Time Operations
112843MARKET INTERVENTION28/12/2023 05:13:34 PM

Update - Direction - SA Region - 27/12/2023

AEMO ELECTRICITY MARKET NOTICE

Update - Direction - SA Region - 27/12/2023

Refer Market Notice 112823

The AEMO intervention event that commenced from interval ending 1505 hrs on 27/12/2023 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
112823MARKET INTERVENTION27/12/2023 03:14:35 PM

Correction - Direction - SA region 27/12/2023

AEMO ELECTRICITY MARKET NOTICE.

Correction - Direction - SA region 27/12/2023

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 1505 hrs on 27/12/2023.

Intervention pricing does not apply to this AEMO intervention event.

Manager NEM Real Time Operations
112822MARKET INTERVENTION27/12/2023 03:07:17 PM

Direction - SA region 28/12/2023

AEMO ELECTRICITY MARKET NOTICE.

Direction - SA region 28/12/2023

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 1505 hrs on 27/12/2023.

Intervention pricing does not apply to this AEMO intervention event.

Manager NEM Real Time Operations
112821MARKET INTERVENTION27/12/2023 03:32:11 PM

Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 26/12/2023

AEMO ELECTRICITY MARKET NOTICE

Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 26/12/2023

Refer Market Notice 112779

The AEMO Intervention Event and all associated directions are cancelled from 1530 hrs 27/12/2023

Manager NEM Real Time Operations
112811MARKET INTERVENTION27/12/2023 01:08:57 PM

Possible intervention to manage power system security in South Australia (SA) Region

AEMO ELECTRICITY MARKET NOTICE

Possible intervention to manage power system security in South Australia (SA) Region

The synchronous generating units currently expected to be synchronised in SA from 0700 hrs 28/12/2023 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
112784INTER-REGIONAL TRANSFER26/12/2023 07:10:58 PM

Inter-regional transfer limit variation - Pelican Point Circuit Breaker 8093 - SA region - 26/12/2023

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Pelican Point Circuit Breaker 8093 - SA region - 26/12/2023

At 1832 hrs 26/12/2023 there was a short notice outage of Pelican Point Circuit Breaker 8093.

The following constraint set(s) invoked at 1855 hrs 26/12/2023
S-PPT_CB6727

This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations
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