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STPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region on 13/06/2024
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 116905 is cancelled at 1400 hrs 07/06/2024.
No LOR condition is currently forecast in the STPASA period.
AEMO Operations
RESERVE NOTICE MT PASA PUBLICATION 11 June 2024
Please note that MTPASA informs the market of potential reliability issues to allow the market to respond in the first instance, potentially avoiding the need for any AEMO intervention.
For further information, please refer to:
https://www.aemo.com.au/Electricity/National-Electricity-Market-NEM/Data/Market-Management-System-MMS/Projected-Assessment-of-System-Adequacy
This notice supersedes Market Notice 116872 published on 4 June 2024.
Background
As part of a broader process of implementing the reliability standard, AEMO runs the Medium Term Projected Assessment of System Adequacy (MTPASA) process weekly to forecast expected unserved energy levels over a two year period. If the expected annual unserved energy exceeds the maximum level specified by the Reliability Standard, a Low Reserve Condition is identified.
For more information about how AEMO implements the reliability standard, please view the Reliability Standard Implementation Guidelines (RSIG) available on AEMO's website at https://www.aemo.com.au/Electricity/National
Forecasting
AEMO
NON-CONFORMANCE Region VIC1 Friday, 7 June 2024
NON-CONFORMANCE VIC1 Region Friday, 7 June 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: YWPS3
Duration: 07/06/2024 11:55 to 07/06/2024 12:00
Amount: -84 MW
Constraint: NC-V_YWPS3
Auto-generated on behalf of Manager NEM Real Time Operations
Inter-Regional Transfer limit variation - Outage Cancelled - Planned outage of Moorabool - Mortlake No.2 500 kV Line in Vic region on 7 June 2024.
The Moorabool - Mortlake No.2 500kV Line in Victoria (VIC) region was planned to be on an outage on 07/06/2024. This outage has been withdrawn by the TNSP.
Constraint sets associated with this outage have been revoked.
I-VS+LKB_050, I-VS_050, V-MLMO
These constraint sets contains equations with the following interconnectors on the LHS.
V-SA, VIC1-NSW1, T-V-MNSP1, V-S-MNSP1
Refer to the AEMO Network Outage Scheduler (NOS) for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Heywood - Tarrone No.1 500kV line - VIC region - 07/06/2024
Inter-regional transfer limit variation - Heywood - Tarrone No.1 500kV line - VIC region - 07/06/2024
At 0406 hrs 07/06/2024 there was an unplanned outage of Heywood - Tarrone No.1 500kV line
The following constraint set(s) invoked at 0415 hrs 07/06/2024
V-HYTR
This constraint set(s) contains equations with the following interconnectors on the LHS.
NSW1-QLD1, T-V-MNSP1, V-S-MNSP1, V-SA, VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
STPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region on 13/06/2024
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following period:
From 1730 hrs to 2100 hrs 13/06/2024.
The forecast capacity reserve requirement is 439 MW.
The minimum capacity reserve available is 382 MW.
AEMO Operations
Inter-Regional Transfer limit variation - Directlink - NSW Region
Inter-Regional Transfer limit variation - Directlink - NSW Region
There has been an unplanned outage of the No 1 Leg of Directlink, with the No.2 Leg of Directlink previously out-of-service.
The following constraint set was invoked at 1425 hrs 06/06/2024
N-X_MBTE_2
The constraint set contains the following interconnector on the left hand side.
N-Q-MNSP1
Refer AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
Cancellation of a Non-Credible Contingency Event: Armidale - Dumaresq 8C 330kV line and Armidale - Sapphire WF 8E 330kV line in NSW1 due to Lightning.
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: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Cancellation time: 06/06/2024 13:34
Constraint set(s) revoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Refer AEMO Electricity Market Notice 116902
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event: Armidale - Dumaresq 8C 330kV line and Armidale - Sapphire WF 8E 330kV line in NSW1 due to Lightning.
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: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Duration: 06/06/2024 12:30 until further notice
Constraint set(s) invoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Auto-generated on behalf of Manager NEM Real Time Operations