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91091PRICES SUBJECT TO REVIEW25/09/2021 04:05:23 PM
[EventId:202109251610_review] Prices for interval 25-Sep-2021 16:10 are subject to review
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1605 hrs on 25 September 2021
PRICES ARE SUBJECT TO REVIEW for dispatch interval 25-Sep-2021 16:10.
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 1605 hrs on 25 September 2021
PRICES ARE SUBJECT TO REVIEW for dispatch interval 25-Sep-2021 16:10.
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.
91090PRICES SUBJECT TO REVIEW25/09/2021 04:00:19 PM
[EventId:202109251605_review] Prices for interval 25-Sep-2021 16:05 are subject to review
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1600 hrs on 25 September 2021
PRICES ARE SUBJECT TO REVIEW for dispatch interval 25-Sep-2021 16:05.
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 1600 hrs on 25 September 2021
PRICES ARE SUBJECT TO REVIEW for dispatch interval 25-Sep-2021 16:05.
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.
91089SETTLEMENTS RESIDUE25/09/2021 03:00:26 PM
[EventId:202109251500_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 25 September 2021 15:00
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1500 hrs on 25 September 2021
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 25 September 2021.
Refer to market notice: 91084
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 1500 hrs on 25 September 2021.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1500 hrs on 25 September 2021
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 25 September 2021.
Refer to market notice: 91084
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 1500 hrs on 25 September 2021.
This is an AEMO autogenerated Market Notice.
91085MARKET INTERVENTION25/09/2021 05:01:53 PM
Direction - SA Region - 25/09/2021
AEMO ELECTRICITY MARKET NOTICE
Direction - SA Region - 25/09/2021
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 1705 hrs on 25/09/2021.
Intervention pricing does not apply to this AEMO intervention event.
Manager NEM Real Time Operations
Direction - SA Region - 25/09/2021
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 1705 hrs on 25/09/2021.
Intervention pricing does not apply to this AEMO intervention event.
Manager NEM Real Time Operations
91084SETTLEMENTS RESIDUE25/09/2021 01:35:24 PM
[EventId:202109251335_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 25 September 2021 13:35
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1335 hrs on 25 September 2021
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 25 September 2021.
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 25 September 2021.
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 25 September 2021
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 25 September 2021.
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 25 September 2021.
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.
91083MARKET INTERVENTION25/09/2021 02:11:47 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 0130 hrs 26/09/2021 to 1700 hrs 26/09/2021 will be inadequate to maintain sufficient system strength in SA and hence a secure operating state.
AEMO estimates that, in the absence of sufficient market response by 1700 hrs 25/09/2021, 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 Operation
Possible intervention to manage power system security in South Australia (SA) Region
The synchronous generating units currently expected to be synchronised in SA from 0130 hrs 26/09/2021 to 1700 hrs 26/09/2021 will be inadequate to maintain sufficient system strength in SA and hence a secure operating state.
AEMO estimates that, in the absence of sufficient market response by 1700 hrs 25/09/2021, 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 Operation
91082MARKET INTERVENTION25/09/2021 04:03:34 PM
Cancellation - AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 24/09/2021
AEMO ELECTRICITY MARKET NOTICE
Cancellation - AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 24/09/2021
Refer Market Notice 91039
The AEMO Intervention Event and all associated directions are cancelled from 1600 hrs 25/09/2021
Manager NEM Real Time Operations
Cancellation - AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 24/09/2021
Refer Market Notice 91039
The AEMO Intervention Event and all associated directions are cancelled from 1600 hrs 25/09/2021
Manager NEM Real Time Operations
91079SETTLEMENTS RESIDUE25/09/2021 11:07:13 AM
[EventId:202109251100_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 25 September 2021 11:00
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1100 hrs on 25 September 2021
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 25 September 2021.
Refer to market notice: 91058
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 1100 hrs on 25 September 2021.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1100 hrs on 25 September 2021
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 25 September 2021.
Refer to market notice: 91058
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 1100 hrs on 25 September 2021.
This is an AEMO autogenerated Market Notice.
91078PRICES UNCHANGED25/09/2021 11:05:01 AM
[EventId:202109251035_confirmed] Prices for interval 25-Sep-2021 10:35 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1100 hrs on 25 September 2021
PRICES ARE NOW CONFIRMED for dispatch interval 25-Sep-2021 10:35.
In accordance with Market Notice 91063 AEMO has reviewed this dispatch interval and determined that:
- Manifestly Incorrect Inputs did not apply
Prices remain unchanged.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1100 hrs on 25 September 2021
PRICES ARE NOW CONFIRMED for dispatch interval 25-Sep-2021 10:35.
In accordance with Market Notice 91063 AEMO has reviewed this dispatch interval and determined that:
- Manifestly Incorrect Inputs did not apply
Prices remain unchanged.
This is an AEMO autogenerated Market Notice.