Market Notices

80648RECLASSIFY CONTINGENCY02/12/2020 05:21:30 PM

Reclassification of a Non-Credible Contingency Event: Bulli Creek - Dumaresq 8L 330KV line and Bulli Creek - Dumaresq 8M 330KV line in QLD1 due to Lightning.

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: QLD1

Lines: Bulli Creek - Dumaresq 8L 330KV and Bulli Creek - Dumaresq 8M 330KV

Duration: 02/12/2020 17:21 until further notice

Constraint set(s) invoked:
I-QNI_ONE_PHASE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NSW1-QLD1


Auto-generated on behalf of Manager NEM Real Time Operations
     
80647RECLASSIFY CONTINGENCY02/12/2020 04:51:15 PM

Reclassification of a Non-Credible Contingency Event: Tarong - Chinchilla No.7168 132 kV line and Tarong - Chinchilla No.7183 132 kV line in QLD1 due to Lightning.

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: QLD1

Lines: Tarong - Chinchilla No.7168 132 kV and Tarong - Chinchilla No.7183 132 kV

Duration: 02/12/2020 16:51 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
     
80646RECLASSIFY CONTINGENCY02/12/2020 04:39:00 PM

Cancellation of a Non-Credible Contingency Event: Condabri Nth - Condabri Central 7400 132kV line and Condabri Nth - Condabri Central 7401 132kV line in QLD1 due to Lightning.

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: QLD1

Lines: Condabri Nth - Condabri Central 7400 132kV and Condabri Nth - Condabri Central 7401 132kV

Cancellation time: 02/12/2020 16:38

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 80642

Auto-generated on behalf of Manager NEM Real Time Operations
     
80645MARKET INTERVENTION02/12/2020 05:51:29 PM

Direction - SA Region - 02/12/2020

AEMO ELECTRICITY MARKET NOTICE.

Direction - SA Region - 02/12/2020

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 dispatch intervals during the event to be intervention dispatch intervals, commencing from the interval ending 1805 hrs on 02/12/2020.

Intervention pricing does not apply to this AEMO intervention event.

Manager NEM Real Time Operations
     
80643MARKET INTERVENTION02/12/2020 03:52:11 PM

Cancellation - AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 02/12/2020

AEMO ELECTRICITY MARKET NOTICE

Cancellation - AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 02/12/2020

Refer Market Notice 80607

The AEMO Intervention Event and all associated directions are cancelled from 1530 hrs 02/12/2020

Manager NEM Real Time Operations
     
80642RECLASSIFY CONTINGENCY02/12/2020 03:35:37 PM

Reclassification of a Non-Credible Contingency Event: Condabri Nth - Condabri Central 7400 132kV line and Condabri Nth - Condabri Central 7401 132kV line in QLD1 due to Lightning.

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: QLD1

Lines: Condabri Nth - Condabri Central 7400 132kV and Condabri Nth - Condabri Central 7401 132kV

Duration: 02/12/2020 15:35 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
     
80640SETTLEMENTS RESIDUE02/12/2020 03:20:19 PM

[EventId:202012021520_NRM_QLD1_NSW1_stopped] NEGRES CONSTRAINT NRM_QLD1_NSW1 ceased operating from 02 December 2020 15:20

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1520 hrs on 2 December 2020

CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - QLD to NSW - 2 December 2020.

Refer to market notice: 80638

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

The negative residue constraint NRM_QLD1_NSW1 ceased operating at 1520 hrs on 2 December 2020.

This is an AEMO autogenerated Market Notice.
     
80639RESERVE NOTICE02/12/2020 02:56:22 PM

STPASA - Update of the Forecast Lack Of Reserve Level 1 (LOR1) in the QLD Region beginning on 04/12/2020

AEMO ELECTRICITY MARKET NOTICE

The Forecast LOR1 condition in the QLD region advised in AEMO Electricity Market Notice No. 80558 has been updated at 1400 hrs 02/12/2020 to the following:

1. From 1530 hrs to 1600 hrs 04/12/2020.
The forecast capacity reserve requirement is 756 MW.
The minimum capacity reserve available is 721 MW.

2. From 1530 hrs to 1600 hrs 07/12/2020.
The forecast capacity reserve requirement is 840 MW.
The minimum capacity reserve available is 785 MW.

Ryan Burge
AEMO Operations
     
80638SETTLEMENTS RESIDUE02/12/2020 02:35:25 PM

[EventId:202012021435_NRM_QLD1_NSW1_started] NEGRES CONSTRAINT NRM_QLD1_NSW1 started operating from 02 December 2020 14:35

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1435 hrs on 2 December 2020

ACTUAL NEGATIVE SETTLEMENT RESIDUES - QLD to NSW - 2 December 2020.

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

The negative residue constraint set NRM_QLD1_NSW1 commenced operating from 1435 hrs on 2 December 2020.

This constraint set contains an equation with the following interconnectors on the LHS:
N-Q-MNSP1
NSW1-QLD1

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


This is an AEMO autogenerated Market Notice.
     
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