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Reclassification of a Non-Credible Contingency Event: Farrell-John Butters line and Farrell-Rosebery-Newton-Queenstown line in TAS1 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: TAS1
Lines: Farrell-John Butters and Farrell-Rosebery-Newton-Queenstown
Duration: 27/06/2024 08:17 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
Possible intervention to manage power system security in SA Region
Possible intervention to manage power system security in SA Region
The synchronous generating units currently expected to be synchronised in SA from 0100 hrs 28/06/2024 will be inadequate to maintain sufficient system strength in SA and hence a secure operating state.
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 Operations
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 25/06/2024
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 25/06/2024
Refer Market Notice 117154
The AEMO Intervention Event and all associated directions are cancelled from 1500 hrs 26/06/2024
Manager NEM Real Time Operations
CHG0090805 | Completed | Production | Identity Service Site Transfer
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: Identity Service (IDS)
Change Title: Identity Service Site Transfer
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
STPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region on 03/07/2024
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following periods:
1. From 0800 hrs to 0900 hrs 03/07/2024.
The forecast capacity reserve requirement is 532 MW.
The minimum capacity reserve available is 505 MW.
2. From 1730 hrs to 2030 hrs 03/07/2024.
The forecast capacity reserve requirement is 526 MW.
The minimum capacity reserve available is 496 MW.
AEMO Operations
STPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region on 02/07/2024
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following periods:
1. From 0800 hrs to 0900 hrs 02/07/2024.
The forecast capacity reserve requirement is 536 MW.
The minimum capacity reserve available is 454 MW.
2. From 1730 hrs to 2130 hrs 02/07/2024.
The forecast capacity reserve requirement is 546 MW.
The minimum capacity reserve available is 414 MW.
AEMO Operations
STPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region on 01/07/2024
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 1800 hrs to 2130 hrs 01/07/2024.
The forecast capacity reserve requirement is 514 MW.
The minimum capacity reserve available is 467 MW.
AEMO Operations
Inter-regional transfer limit variation - Heywood - South East No 2 275 kV Line - SA region - 26/06/2024
Inter-regional transfer limit variation -Heywood - South East No 2 275 kV Line SA region - 26/06/2024
A planned outage of Heywood - South East No 2 275 kV Line in the SA region was scheduled from 0815 hrs 26/06/2024 to 1930 hrs 26/06/2024.
The outage has been completed and Heywood - South East No 2 275 kV Line returned to service at 1410 hrs 26/06/2024
Constraint set(s) revoked:
I-HYSE
I-VS_050
I-VS+LKB_050
Manager NEM Real Time Operations
Cancellation of a Non-Credible Contingency Event: Norwood - Scottsdale 1 110kV line and Norwood-Derby-Scottsdale 110kV line in TAS1 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: TAS1
Lines: Norwood - Scottsdale 1 110kV and Norwood-Derby-Scottsdale 110kV
Cancellation time: 26/06/2024 12:39
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 117196
Auto-generated on behalf of Manager NEM Real Time Operations