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90665SETTLEMENTS RESIDUE18/09/2021 09:00:21 AM
[EventId:202109180900_NRM_QLD1_NSW1_stopped] NEGRES CONSTRAINT NRM_QLD1_NSW1 ceased operating from 18 September 2021 09:00
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 0900 hrs on 18 September 2021
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - QLD to NSW - 18 September 2021.
Refer to market notice: 90662
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 0900 hrs on 18 September 2021.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 0900 hrs on 18 September 2021
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - QLD to NSW - 18 September 2021.
Refer to market notice: 90662
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 0900 hrs on 18 September 2021.
This is an AEMO autogenerated Market Notice.
90664RESERVE NOTICE18/09/2021 08:29:06 AM
STPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region beginning on 21/09/2021
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 90660 is cancelled at 0820 hrs 18/09/2021.
No LOR condition is currently forecast in the STPASA period.
AEMO Operations
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 90660 is cancelled at 0820 hrs 18/09/2021.
No LOR condition is currently forecast in the STPASA period.
AEMO Operations
90663RESERVE NOTICE18/09/2021 08:28:10 AM
STPASA - Cancellation of the Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region on 21/09/2021
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR2 condition in the SA region advised in AEMO Electricity Market Notice No. 90661 is cancelled at 0820 hrs 18/09/2021.
No LOR2 condition is currently forecast in the STPASA period.
AEMO Operations
The Forecast LOR2 condition in the SA region advised in AEMO Electricity Market Notice No. 90661 is cancelled at 0820 hrs 18/09/2021.
No LOR2 condition is currently forecast in the STPASA period.
AEMO Operations
90662SETTLEMENTS RESIDUE18/09/2021 08:05:30 AM
[EventId:202109180805_NRM_QLD1_NSW1_started] NEGRES CONSTRAINT NRM_QLD1_NSW1 started operating from 18 September 2021 08:05
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 0805 hrs on 18 September 2021
ACTUAL NEGATIVE SETTLEMENT RESIDUES - QLD to NSW - 18 September 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 0805 hrs on 18 September 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 0805 hrs on 18 September 2021
ACTUAL NEGATIVE SETTLEMENT RESIDUES - QLD to NSW - 18 September 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 0805 hrs on 18 September 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.
90661RESERVE NOTICE18/09/2021 07:51:45 AM
STPASA - Update of the Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region on 21/09/2021
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR2 condition in the SA region advised in AEMO Electricity Market Notice No. 90657 has been updated at 0730 hrs 18/09/2021 to the following:
From 1830 hrs 21/09/2021 to 2100 hrs 21/09/2021.
The forecast capacity reserve requirement is 243 MW.
The minimum capacity reserve available is 143 MW.
AEMO is seeking a market response.
AEMO estimates the latest time it would need to intervene through an AEMO intervention event is 1230 hrs on 20/09/2021
Manager NEM Real Time Operations
The Forecast LOR2 condition in the SA region advised in AEMO Electricity Market Notice No. 90657 has been updated at 0730 hrs 18/09/2021 to the following:
From 1830 hrs 21/09/2021 to 2100 hrs 21/09/2021.
The forecast capacity reserve requirement is 243 MW.
The minimum capacity reserve available is 143 MW.
AEMO is seeking a market response.
AEMO estimates the latest time it would need to intervene through an AEMO intervention event is 1230 hrs on 20/09/2021
Manager NEM Real Time Operations
90660RESERVE NOTICE18/09/2021 07:50:16 AM
STPASA - Update of the Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region beginning on 21/09/2021
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 90620 has been updated at 0730 hrs 18/09/2021 to the following:
[1.] From 1800 hrs 21/09/2021 to 1830 hrs 21/09/2021.
The forecast capacity reserve requirement is 434 MW.
The minimum capacity reserve available is 341 MW.
[2.] From 2100 hrs 21/09/2021 to 2300 hrs 21/09/2021.
The forecast capacity reserve requirement is 434 MW.
The minimum capacity reserve available is 271 MW.
[3.] From 1900 hrs 22/09/2021 to 2100 hrs 22/09/2021.
The forecast capacity reserve requirement is 450 MW.
The minimum capacity reserve available is 395 MW.
Manager NEM Real Time Operations
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 90620 has been updated at 0730 hrs 18/09/2021 to the following:
[1.] From 1800 hrs 21/09/2021 to 1830 hrs 21/09/2021.
The forecast capacity reserve requirement is 434 MW.
The minimum capacity reserve available is 341 MW.
[2.] From 2100 hrs 21/09/2021 to 2300 hrs 21/09/2021.
The forecast capacity reserve requirement is 434 MW.
The minimum capacity reserve available is 271 MW.
[3.] From 1900 hrs 22/09/2021 to 2100 hrs 22/09/2021.
The forecast capacity reserve requirement is 450 MW.
The minimum capacity reserve available is 395 MW.
Manager NEM Real Time Operations
90659RECLASSIFY CONTINGENCY18/09/2021 04:18:56 AM
Cancellation of a Non-Credible Contingency Event: Farrell - Reece No.1 220 kV line and Farrell - Reece No.2 220 kV line in TAS1 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: TAS1
Lines: Farrell - Reece No.1 220 kV and Farrell - Reece No.2 220 kV
Cancellation time: 18/09/2021 04:18
Constraint set(s) revoked:
F-T-FARE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1
Refer AEMO Electricity Market Notice 90658
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: TAS1
Lines: Farrell - Reece No.1 220 kV and Farrell - Reece No.2 220 kV
Cancellation time: 18/09/2021 04:18
Constraint set(s) revoked:
F-T-FARE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1
Refer AEMO Electricity Market Notice 90658
Auto-generated on behalf of Manager NEM Real Time Operations
90658RECLASSIFY CONTINGENCY18/09/2021 03:16:46 AM
Reclassification of a Non-Credible Contingency Event: Farrell - Reece No.1 220 kV line and Farrell - Reece No.2 220 kV line in TAS1 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: TAS1
Lines: Farrell - Reece No.1 220 kV and Farrell - Reece No.2 220 kV
Duration: 18/09/2021 03:16 until further notice
Constraint set(s) invoked:
F-T-FARE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1
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: TAS1
Lines: Farrell - Reece No.1 220 kV and Farrell - Reece No.2 220 kV
Duration: 18/09/2021 03:16 until further notice
Constraint set(s) invoked:
F-T-FARE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1
Auto-generated on behalf of Manager NEM Real Time Operations
90657RESERVE NOTICE17/09/2021 10:42:15 PM
STPASA - Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region on 21/09/2021
AEMO ELECTRICITY MARKET NOTICE
AEMO declares a Forecast LOR2 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following period:
From 1900 hrs 21/09/2021 to 2000 hrs 21/09/2021.
The forecast capacity reserve requirement is 242 MW.
The minimum capacity reserve available is 212 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.
Manager NEM Real Time Operations
AEMO declares a Forecast LOR2 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following period:
From 1900 hrs 21/09/2021 to 2000 hrs 21/09/2021.
The forecast capacity reserve requirement is 242 MW.
The minimum capacity reserve available is 212 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.
Manager NEM Real Time Operations