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91408PRICES SUBJECT TO REVIEW01/10/2021 12:11:09 PM
[EventId:202110011215_review] Prices for interval 01-Oct-2021 12:15 are subject to review
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1210 hrs on 1 October 2021
PRICES ARE SUBJECT TO REVIEW for trading interval 01-Oct-2021 12:15.
AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1210 hrs on 1 October 2021
PRICES ARE SUBJECT TO REVIEW for trading interval 01-Oct-2021 12:15.
AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs
This is an AEMO autogenerated Market Notice.
91407PRICES SUBJECT TO REVIEW01/10/2021 12:05:23 PM
[EventId:202110011210_review] Prices for interval 01-Oct-2021 12:10 are subject to review
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1205 hrs on 1 October 2021
PRICES ARE SUBJECT TO REVIEW for trading interval 01-Oct-2021 12:10.
AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1205 hrs on 1 October 2021
PRICES ARE SUBJECT TO REVIEW for trading interval 01-Oct-2021 12:10.
AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs
This is an AEMO autogenerated Market Notice.
91406RECLASSIFY CONTINGENCY01/10/2021 11:34:10 AM
Cancellation 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
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: Tarong - Chinchilla No.7168 132 kV and Tarong - Chinchilla No.7183 132 kV
Cancellation time: 01/10/2021 11:34
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 91402
Auto-generated on behalf of Manager NEM Real Time Operations
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: Tarong - Chinchilla No.7168 132 kV and Tarong - Chinchilla No.7183 132 kV
Cancellation time: 01/10/2021 11:34
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 91402
Auto-generated on behalf of Manager NEM Real Time Operations
91405RECLASSIFY CONTINGENCY01/10/2021 11:20:59 AM
Reclassification of a Non Credible Contingency Event: MLTS- HGTS No 1 500kV Line and two APD potlines in Victorian Region
AEMO ELECTRICITY MARKET NOTICE
AEMO has been advised that for the trip of the MLTS- HGTS No 1 500kV Line and two APD potlines is reasonably possible.
AEMO therefore reclassifies the following as credible contingency events until further notice;
Simultaneous trip of MLTS- HGTS No 1 500kV Line and two APD potlines
The system normal constraint set V-NIL has been updated as follows;
- Constraint equation V>>V_NIL_15 is removed
- Constraint equation V>>V_NIL_16 is updated
The system normal constraint set F-I_NIL had been previously updated to include constraint equations to source FCAS lower services to manage the potential loss of 500MW.
Manager NEM Real Time Operations
AEMO has been advised that for the trip of the MLTS- HGTS No 1 500kV Line and two APD potlines is reasonably possible.
AEMO therefore reclassifies the following as credible contingency events until further notice;
Simultaneous trip of MLTS- HGTS No 1 500kV Line and two APD potlines
The system normal constraint set V-NIL has been updated as follows;
- Constraint equation V>>V_NIL_15 is removed
- Constraint equation V>>V_NIL_16 is updated
The system normal constraint set F-I_NIL had been previously updated to include constraint equations to source FCAS lower services to manage the potential loss of 500MW.
Manager NEM Real Time Operations
91404RECLASSIFY CONTINGENCY01/10/2021 11:19:50 AM
Reclassification of a Non Credible Contingency Event: MLTS- MOPS No 2 500kV Line and two APD potlines in Victorian Region
AEMO ELECTRICITY MARKET NOTICE
AEMO has been advised that for the trip of the MLTS- MOPS No 2 500kV Line and two APD potlines is reasonably possible.
AEMO therefore reclassifies the following as credible contingency events until further notice;
Simultaneous trip of MLTS- MOPS No 2 500kV Line and two APD potlines
The system normal constraint set V-NIL has been updated as follows;
- Constraint equation V>>V_NIL_15 is removed
- Constraint equation V>>V_NIL_16 is updated
The system normal constraint set F-I_NIL had previously been updated to include constraint equations to source FCAS lower services to manage the potential loss of 500MW.
Manager NEM Real Time Operations
AEMO has been advised that for the trip of the MLTS- MOPS No 2 500kV Line and two APD potlines is reasonably possible.
AEMO therefore reclassifies the following as credible contingency events until further notice;
Simultaneous trip of MLTS- MOPS No 2 500kV Line and two APD potlines
The system normal constraint set V-NIL has been updated as follows;
- Constraint equation V>>V_NIL_15 is removed
- Constraint equation V>>V_NIL_16 is updated
The system normal constraint set F-I_NIL had previously been updated to include constraint equations to source FCAS lower services to manage the potential loss of 500MW.
Manager NEM Real Time Operations
91403RECLASSIFY CONTINGENCY01/10/2021 10:29:25 AM
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: 01/10/2021 10:29 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: 01/10/2021 10:29 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
91402RECLASSIFY CONTINGENCY01/10/2021 10:29:25 AM
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: 01/10/2021 10:29 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: QLD1
Lines: Tarong - Chinchilla No.7168 132 kV and Tarong - Chinchilla No.7183 132 kV
Duration: 01/10/2021 10:29 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
91401SETTLEMENTS RESIDUE01/10/2021 10:15:23 AM
[EventId:202110011015_NRM_QLD1_NSW1_started] NEGRES CONSTRAINT NRM_QLD1_NSW1 started operating from 01 October 2021 10:15
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1015 hrs on 1 October 2021
ACTUAL NEGATIVE SETTLEMENT RESIDUES - QLD to NSW - 1 October 2021.
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 1015 hrs on 1 October 2021.
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.
Issued by Australian Energy Market Operator Ltd at 1015 hrs on 1 October 2021
ACTUAL NEGATIVE SETTLEMENT RESIDUES - QLD to NSW - 1 October 2021.
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 1015 hrs on 1 October 2021.
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.
91400MARKET SYSTEMS01/10/2021 09:37:03 AM
INC0078750 : MSATS Application server is due for maintenance 09:00 - Completed
AEMO ELECTRICITY MARKET NOTICE
INC0078750
MSATS maintenance has been completed.
For further enquiries please contact the AEMO Support Hub
Phone: 1300 236 600
Email: supporthub@aemo.com.au
AEMO IT Duty Manager
INC0078750
MSATS maintenance has been completed.
For further enquiries please contact the AEMO Support Hub
Phone: 1300 236 600
Email: supporthub@aemo.com.au
AEMO IT Duty Manager