Market Notices

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1330 hrs on 28 November 2024

CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 28 November 2024.

Refer to market notice: 121143

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 1330 hrs on 28 November 2024.

This is an AEMO autogenerated Market Notice.

AEMO ELECTRICITY MARKET NOTICE

AEMO declares a Forecast LOR2 condition under clause 4.8.4(b) of the National Electricity Rules for the NSW region for the following Periods:

[1.] From 0800 hrs 29/11/2024 to 1000 hrs 29/11/2024.
The forecast capacity reserve requirement is 968 MW.
The minimum capacity reserve available is 816 MW.

[2.] From 1330 hrs 29/11/2024 to 1500 hrs 29/11/2024.
The forecast capacity reserve requirement is 1156 MW.
The minimum capacity reserve available is 1102 MW.

[3.] From 1530 hrs 29/11/2024 to 1700 hrs 29/11/2024.
The forecast capacity reserve requirement is 1131 MW.
The minimum capacity reserve available is 1075 MW.

AEMO is seeking a market response.

AEMO has not yet estimated the latest time at which it would need to intervene through an AEMO intervention event.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the NSW region for the following Periods:

[1.] From 0600 hrs 29/11/2024 to 0800 hrs 29/11/2024.
The forecast capacity reserve requirement is 1430 MW.
The minimum capacity reserve available is 992 MW.

[2.] From 1000 hrs 29/11/2024 to 1330 hrs 29/11/2024.
The forecast capacity reserve requirement is 1430 MW.
The minimum capacity reserve available is 1110 MW.

[3.] From 1500 hrs 29/11/2024 to 1530 hrs 29/11/2024.
The forecast capacity reserve requirement is 1705 MW.
The minimum capacity reserve available is 1371 MW.

[4.] From 1700 hrs 29/11/2024 to 1730 hrs 29/11/2024.
The forecast capacity reserve requirement is 1400 MW.
The minimum capacity reserve available is 1258 MW.


Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 121139 has been updated at 1100 hrs 28/11/2024 to the following:

1. From 0800 hrs to 0930 hrs 29/11/2024.
The forecast capacity reserve requirement is 1023 MW.
The minimum capacity reserve available is 1011 MW.

2. From 1100 hrs to 1500 hrs 29/11/2024.
The forecast capacity reserve requirement is 1281 MW.
The minimum capacity reserve available is 1094 MW.

3. From 1530 hrs to 1700 hrs 29/11/2024.
The forecast capacity reserve requirement is 1189 MW.
The minimum capacity reserve available is 1047 MW.

AEMO is seeking a market response.

AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.

AEMO Operations

AEMO ELECTRICITY MARKET NOTICE

Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.

Region: NSW1

Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV

Duration: 28/11/2024 11:42 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.

Region: NSW1

Lines: Bannaby - Mt Piper 5A6 500kV and Bannaby - Mt Piper 5A7 500kV

Duration: 28/11/2024 11:22 until further notice

Constraint set(s) invoked:
N-5A6+5A7_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
VIC1-NSW1


Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1005 hrs on 28 November 2024

ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 28 November 2024.

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 1005 hrs on 28 November 2024.

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.

AEMO ELECTRICITY MARKET NOTICE

Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.

Region: NSW1

Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV

Cancellation time: 28/11/2024 09:59

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 121137

Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 121136 has been updated at 1245 hrs to the following:

[1.] From 1700 hrs 28/11/2024 to 1830 hrs 28/11/2024.
The forecast capacity reserve requirement is 1776 MW.
The minimum capacity reserve available is 1679 MW.

Manager NEM Real Time Operations