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94044RECLASSIFY CONTINGENCY25/01/2022 07:44:35 PM
Cancellation of a Non-Credible Contingency Event: Eildon PS - Mt Beauty No.1 220 kV line and Eildon PS - Mt Beauty No.2 220 kV line in VIC1 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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Cancellation time: 25/01/2022 19:44
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 94034
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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Cancellation time: 25/01/2022 19:44
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 94034
Auto-generated on behalf of Manager NEM Real Time Operations
94043RECLASSIFY CONTINGENCY25/01/2022 07:29:35 PM
Cancellation of a Non-Credible Contingency Event: Dederang - Glenrowan No.1 & No.3 220 kV Lines line and Numurkah Solar Farm line in VIC1 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: VIC1
Lines: Dederang - Glenrowan No.1 & No.3 220 kV Lines and Numurkah Solar Farm
Cancellation time: 25/01/2022 19:29
Constraint set(s) revoked:
V-NIL_DDGN_NSF_N-2 Constraint set contains the following interconnector(s) on the left hand side:
V-S-MNSP1
VIC1-NSW1
Refer AEMO Electricity Market Notice 94040
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: VIC1
Lines: Dederang - Glenrowan No.1 & No.3 220 kV Lines and Numurkah Solar Farm
Cancellation time: 25/01/2022 19:29
Constraint set(s) revoked:
V-NIL_DDGN_NSF_N-2 Constraint set contains the following interconnector(s) on the left hand side:
V-S-MNSP1
VIC1-NSW1
Refer AEMO Electricity Market Notice 94040
Auto-generated on behalf of Manager NEM Real Time Operations
94042RECLASSIFY CONTINGENCY25/01/2022 05:19:35 PM
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.
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: VIC1
Lines: Hazelwood - Rowville No.1 220kV and Hazelwood - Rowville No.2 220kV
Cancellation time: 25/01/2022 17:19
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 94041
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: VIC1
Lines: Hazelwood - Rowville No.1 220kV and Hazelwood - Rowville No.2 220kV
Cancellation time: 25/01/2022 17:19
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 94041
Auto-generated on behalf of Manager NEM Real Time Operations
94041RECLASSIFY CONTINGENCY25/01/2022 04:14:05 PM
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.
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: VIC1
Lines: Hazelwood - Rowville No.1 220kV and Hazelwood - Rowville No.2 220kV
Duration: 25/01/2022 16:14 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
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: 25/01/2022 16:14 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
94040RECLASSIFY CONTINGENCY25/01/2022 03:28:15 PM
Reclassification of a Non-Credible Contingency Event: Dederang - Glenrowan No.1 & No.3 220 kV Lines line and Numurkah Solar Farm line in VIC1 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: VIC1
Lines: Dederang - Glenrowan No.1 & No.3 220 kV Lines and Numurkah Solar Farm
Duration: 25/01/2022 15:28 until further notice
Constraint set(s) invoked:
V-NIL_DDGN_NSF_N-2 Constraint set contains the following interconnector(s) on the left hand side:
V-S-MNSP1
VIC1-NSW1
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: VIC1
Lines: Dederang - Glenrowan No.1 & No.3 220 kV Lines and Numurkah Solar Farm
Duration: 25/01/2022 15:28 until further notice
Constraint set(s) invoked:
V-NIL_DDGN_NSF_N-2 Constraint set contains the following interconnector(s) on the left hand side:
V-S-MNSP1
VIC1-NSW1
Auto-generated on behalf of Manager NEM Real Time Operations
94039RESERVE NOTICE25/01/2022 02:39:37 PM
STPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the QLD Region on 31/01/2022
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR1 condition in the QLD Region advised in AEMO Electricity Market Notice No 94015 is cancelled at 1400 hrs 25/01/2022.
AEMO Operations
The Forecast LOR1 condition in the QLD Region advised in AEMO Electricity Market Notice No 94015 is cancelled at 1400 hrs 25/01/2022.
AEMO Operations
94038RESERVE NOTICE25/01/2022 02:35:45 PM
STPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the QLD Region on 01/02/2022
AEMO ELECTRICITY MARKET NOTICE
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the QLD region for the following periods:
[1.] From 1730 hrs to 1830 hrs 01/02/2022.
The forecast capacity reserve requirement is 878 MW.
The minimum capacity reserve available is 543 MW.
[2.] From 1900 hrs to 2000 hrs 01/02/2022.
The forecast capacity reserve requirement is 870 MW.
The minimum capacity reserve available is 504 MW.
AEMO Operations
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the QLD region for the following periods:
[1.] From 1730 hrs to 1830 hrs 01/02/2022.
The forecast capacity reserve requirement is 878 MW.
The minimum capacity reserve available is 543 MW.
[2.] From 1900 hrs to 2000 hrs 01/02/2022.
The forecast capacity reserve requirement is 870 MW.
The minimum capacity reserve available is 504 MW.
AEMO Operations
94037MARKET SYSTEMS25/01/2022 02:21:05 PM
CHG0070610 :Service/ Component: MSATS - Consumer Administration and Transfer Solution(CATS)
Change Number: CHG0070610
Notification issued to: Market Notice
Notification Type: Cancelled
Change Type: Normal
Service/ Component: MSATS - Consumer Administration and Transfer Solution(CATS)
Change Title: CATS Production Database Maintenance
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600
Notification issued to: Market Notice
Notification Type: Cancelled
Change Type: Normal
Service/ Component: MSATS - Consumer Administration and Transfer Solution(CATS)
Change Title: CATS Production Database Maintenance
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600
94035GENERAL NOTICE25/01/2022 01:49:43 PM
Planned outage of Cherry Gardens - Tailem Bend 275 kV line in the South Australia (SA) region on 03/02/2022 and 04/02/2022.
AEMO ELECTRICITY MARKET NOTICE
The Tailem Bend - Cherry Gardens 275kV line in South Australia (SA) region is planned to be out of service from 2030 hrs on 03/02/2022 to 0030 hrs on 04/02/2022.
During this outage, SA will remain connected to the rest of the NEM via the Tungkillo - Tailem Bend 275kV line and the 132kV network.
A credible contingency event on the Tungkillo - Tailem Bend 275kV line during this planned outage will sever the 275kV connections between Victoria and SA. If SA remains connected to the Victoria via the 132kV network, this will pose a system security issue.
If the above credible contingency occurs, AEMO will take all necessary steps as outlined in Section 3.1 of SO_OP_3715 Power System Security Guideline to separate the 132kV network and therefore manage an orderly separation of SA from the rest of the NEM.
Ayesha Ashfaq
AEMO Operations
The Tailem Bend - Cherry Gardens 275kV line in South Australia (SA) region is planned to be out of service from 2030 hrs on 03/02/2022 to 0030 hrs on 04/02/2022.
During this outage, SA will remain connected to the rest of the NEM via the Tungkillo - Tailem Bend 275kV line and the 132kV network.
A credible contingency event on the Tungkillo - Tailem Bend 275kV line during this planned outage will sever the 275kV connections between Victoria and SA. If SA remains connected to the Victoria via the 132kV network, this will pose a system security issue.
If the above credible contingency occurs, AEMO will take all necessary steps as outlined in Section 3.1 of SO_OP_3715 Power System Security Guideline to separate the 132kV network and therefore manage an orderly separation of SA from the rest of the NEM.
Ayesha Ashfaq
AEMO Operations