Market Notices

111991MARKET INTERVENTION04/12/2023 12:37:51 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 0750 hrs 05/12/2023 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
111989SETTLEMENTS RESIDUE04/12/2023 11:30:29 AM

[EventId:202312041130_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 04 December 2023 11:30

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1130 hrs on 4 December 2023

CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 4 December 2023.

Refer to market notice: 111988

AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the NSW to VIC directional interconnector.

The negative residue constraint NRM_NSW1_VIC1 ceased operating at 1130 hrs on 4 December 2023.

This is an AEMO autogenerated Market Notice.
111988SETTLEMENTS RESIDUE04/12/2023 10:15:21 AM

[EventId:202312041015_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 04 December 2023 10:15

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1015 hrs on 4 December 2023

ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 4 December 2023.

Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the NSW to VIC directional interconnector.

The negative residue constraint set NRM_NSW1_VIC1 commenced operating from 1015 hrs on 4 December 2023.

This constraint set contains an equation with the following interconnectors on the LHS:
VIC1-NSW1

The RHS of the constraint equation may be adjusted to manage residues.


This is an AEMO autogenerated Market Notice.
111968MARKET INTERVENTION03/12/2023 04:26:54 PM

Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 02/12/2023

AEMO ELECTRICITY MARKET NOTICE

Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 02/12/2023

Refer Market Notice 111935

The AEMO Intervention Event and all associated directions are cancelled from 1630 hrs 03/12/2023

Manager NEM Real Time Operations
111957MARKET INTERVENTION03/12/2023 03:00:12 PM

Direction - SA region 03/12/2023

AEMO ELECTRICITY MARKET NOTICE.

Direction - SA region 03/12/2023

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 03/12/2023.

Intervention pricing does not apply to this AEMO intervention event.

Manager NEM Real Time Operations
111954MARKET INTERVENTION03/12/2023 11:09:45 AM

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 111949

The synchronous generating units currently expected to be synchronised in SA from 0000 hrs 04/12/2023 will be inadequate to maintain a secure operating state in SA .

AEMO estimates that, in the absence of sufficient market response by 1500 hrs 03/12/2023, 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
111949MARKET INTERVENTION02/12/2023 08:42:33 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 0000 hrs 04/12/2023 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
111947RESERVE NOTICE02/12/2023 07:47:01 PM

Cancellation of Actual (LOR1) condition in the QLD region - 02/12/2023

AEMO ELECTRICITY MARKET NOTICE

Cancellation of Actual (LOR1) condition in the QLD region - 02/12/2023

The Actual LOR1 Condition in the QLD Region advised in AEMO Electricity Market Notice No.111943 is cancelled at 1945 hrs 02/12/2023.

Manager NEM Real Time Operations
111943RESERVE NOTICE02/12/2023 06:20:45 PM

Actual Lack Of Reserve Level 1 (LOR1) in the QLD region - 02/12/2023

AEMO ELECTRICITY MARKET NOTICE

Actual Lack Of Reserve Level 1 (LOR1) in the QLD region - 02/12/2023

An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the QLD region from 1820 hrs.
The Actual LOR1 condition is forecast to exist until 2000 hrs

The capacity reserve requirement is 1299 MW
The minimum capacity reserve available is 1167 MW

Manager NEM Real Time Operations
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