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115369SETTLEMENTS RESIDUE29/02/2024 02:40:34 PM
[EventId:202402291440_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 29 February 2024 14:40
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1440 hrs on 29 February 2024
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 29 February 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 1440 hrs on 29 February 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.
Issued by Australian Energy Market Operator Ltd at 1440 hrs on 29 February 2024
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 29 February 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 1440 hrs on 29 February 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.
115368SETTLEMENTS RESIDUE29/02/2024 02:30:28 PM
[EventId:202402291430_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 29 February 2024 14:30
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1430 hrs on 29 February 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 29 February 2024.
Refer to market notice: 115360
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 1430 hrs on 29 February 2024.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1430 hrs on 29 February 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 29 February 2024.
Refer to market notice: 115360
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 1430 hrs on 29 February 2024.
This is an AEMO autogenerated Market Notice.
115367RECLASSIFY CONTINGENCY29/02/2024 02:24:25 PM
Reclassification of a Non-Credible Contingency Event: Bannaby - Mt Piper 5A6 500kV line and Bannaby - Mt Piper 5A7 500kV line in NSW1 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: NSW1
Lines: Bannaby - Mt Piper 5A6 500kV and Bannaby - Mt Piper 5A7 500kV
Duration: 29/02/2024 14:24 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
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: 29/02/2024 14:24 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
115366RECLASSIFY CONTINGENCY29/02/2024 02:24:25 PM
Reclassification of a Non-Credible Contingency Event: Bayswater - Mt Piper No.5A3 500kV line and Wollar - Mt Piper No.5A5 500kV line in NSW1 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: NSW1
Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV
Duration: 29/02/2024 14:24 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
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: 29/02/2024 14:24 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
115365RESERVE NOTICE29/02/2024 02:20:05 PM
PDPASA - Update of the Forecast Lack Of Reserve Level 1 (LOR1) in the NSW Region on 29/02/2024
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 115358 has been updated at 1415 hrs to the following:
[1.] From 1600 hrs 29/02/2024 to 1830 hrs 29/02/2024.
The forecast capacity reserve requirement is 1370 MW.
The minimum capacity reserve available is 957 MW.
Manager NEM Real Time Operations
The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 115358 has been updated at 1415 hrs to the following:
[1.] From 1600 hrs 29/02/2024 to 1830 hrs 29/02/2024.
The forecast capacity reserve requirement is 1370 MW.
The minimum capacity reserve available is 957 MW.
Manager NEM Real Time Operations
115364MARKET INTERVENTION29/02/2024 04:46:21 PM
Direction - SA region 29/02/2024
AEMO ELECTRICITY MARKET NOTICE.
Direction - SA region 29/02/2024
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 1705 hrs on 29/02/2024.
Intervention pricing does not apply to this AEMO intervention event.
Manager NEM Real Time Operations
Direction - SA region 29/02/2024
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 1705 hrs on 29/02/2024.
Intervention pricing does not apply to this AEMO intervention event.
Manager NEM Real Time Operations
115362MARKET SYSTEMS29/02/2024 02:07:10 PM
CHG0082015: Brisbane MarketNet Firewall Refresh - Cancelled
Change Number: CHG0082015
Notification issued to: Market Notice
Notification Type: Cancelled
Change Type: Normal
Service/ Component: Firewall
Change Title: Brisbane MarketNet Firewall Refresh
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600
Notification issued to: Market Notice
Notification Type: Cancelled
Change Type: Normal
Service/ Component: Firewall
Change Title: Brisbane MarketNet Firewall Refresh
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600
115361MARKET INTERVENTION29/02/2024 02:11:33 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 115359
The synchronous generating units currently expected to be synchronised in SA from 0900 hrs 01/03/2024 will be inadequate to maintain a secure operating state in SA .
AEMO estimates that, in the absence of sufficient market response by 1700 hrs 29/02/2024, 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
Update - Possible intervention to manage power system security in SA region
Refer AEMO Electricity Market Notice 115359
The synchronous generating units currently expected to be synchronised in SA from 0900 hrs 01/03/2024 will be inadequate to maintain a secure operating state in SA .
AEMO estimates that, in the absence of sufficient market response by 1700 hrs 29/02/2024, 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
115360SETTLEMENTS RESIDUE29/02/2024 01:35:28 PM
[EventId:202402291335_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 29 February 2024 13:35
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1335 hrs on 29 February 2024
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 29 February 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 1335 hrs on 29 February 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.
Issued by Australian Energy Market Operator Ltd at 1335 hrs on 29 February 2024
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 29 February 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 1335 hrs on 29 February 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.