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Cancellation of a Non-Credible Contingency Event: Hazelwood - Rowville No.1 220kV line and Hazelwood - Rowville No.2 220kV line in VIC1 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: VIC1
Lines: Hazelwood - Rowville No.1 220kV and Hazelwood - Rowville No.2 220kV
Cancellation time: 06/12/2021 19:49
Constraint set(s) revoked:
V-HWRO_R_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Refer AEMO Electricity Market Notice 92978
Auto-generated on behalf of Manager NEM Real Time Operations
Update - Direction - SA Region - 01/12/2021
Update - Direction - SA Region - 01/12/2021
Refer Market Notice 92850
The AEMO intervention event that commenced from interval ending 1605 hrs on 01/12/2021 is continuing.
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.
Manager NEM Real Time Operations
NON-CONFORMANCE Region NSW1 Monday, 6 December 2021
NON-CONFORMANCE NSW1 Region Monday, 6 December 2021
AEMO declared a schedule generating unit non-conforming
Unit: HUMENSW
Duration: 06/12/2021 15:40 to 06/12/2021 15:45
Amount: -42 MW
Constraint: NC-N_HUMENSW
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE Region QLD1 Monday, 6 December 2021
NON-CONFORMANCE QLD1 Region Monday, 6 December 2021
AEMO declared a schedule generating unit non-conforming
Unit: SWAN_E
Duration: 06/12/2021 15:30 to 06/12/2021 15:35
Amount: 26 MW
Constraint: NC-Q_SWAN_E
Auto-generated on behalf of Manager NEM Real Time Operations
Network Augmentation Commissioned - SA Region - 06/12/2021
Network Augmentation Commissioned - SA Region - 06/12/2021
The Davenport - Port Patterson North 275 kV Line has been commissioned at 0921 hrs 06/12/2021
Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event: Hazelwood - Rowville No.1 220kV line and Hazelwood - Rowville No.2 220kV line in VIC1 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: VIC1
Lines: Hazelwood - Rowville No.1 220kV and Hazelwood - Rowville No.2 220kV
Duration: 06/12/2021 14:47 until further notice
Constraint set(s) invoked:
V-HWRO_R_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
STPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the QLD Region on 09/12/2021
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the QLD region for the following period:
From 1930 hrs to 2000 hrs 09/12/2021.
The forecast capacity reserve requirement is 892 MW.
The minimum capacity reserve available is 835 MW.
AEMO Operations
STPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the TAS Region on 08/12/2021
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the TAS region for the following period:
From 0700 hrs to 0800 hrs 08/12/2021.
The forecast capacity reserve requirement is 922 MW.
The minimum capacity reserve available is 890 MW.
AEMO Operations
RESERVE NOTICE MT PASA PUBLICATION 7 December 2021
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 market intervention or direction from AEMO.
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 92821 published on 30 November 2021.
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-Electricity-Market-NEM/Planning-and-forecasting/Reliability-Standard-Implementation-Guidelines
Forecasting
AEMO