Market Notices

77484RECLASSIFY CONTINGENCY03/09/2020 09:39:35 PM

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: 03/09/2020 21:39

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 77483

Auto-generated on behalf of Manager NEM Real Time Operations
77483RECLASSIFY CONTINGENCY03/09/2020 08:38:05 PM

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: 03/09/2020 20:38 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
77482RECLASSIFY CONTINGENCY03/09/2020 06:54:35 PM

Cancellation of a Non-Credible Contingency Event: Farrell-John Butters line and Farrell-Rosebery-Newton-Queenstown 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-John Butters and Farrell-Rosebery-Newton-Queenstown

Cancellation time: 03/09/2020 18:54

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 77480

Auto-generated on behalf of Manager NEM Real Time Operations
77481RECLASSIFY CONTINGENCY03/09/2020 06:14:35 PM

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: 03/09/2020 18:14

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 77465

Auto-generated on behalf of Manager NEM Real Time Operations
77480RECLASSIFY CONTINGENCY03/09/2020 05:51:36 PM

Reclassification of a Non-Credible Contingency Event: Farrell-John Butters line and Farrell-Rosebery-Newton-Queenstown 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-John Butters and Farrell-Rosebery-Newton-Queenstown

Duration: 03/09/2020 17:51 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
77479RECLASSIFY CONTINGENCY03/09/2020 05:49:35 PM

Cancellation of a Non-Credible Contingency Event: Farrell-Sheffield No.1 220 kV line and Farrell-Sheffield 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-Sheffield No.1 220 kV and Farrell-Sheffield No.2 220 kV

Cancellation time: 03/09/2020 17:49

Constraint set(s) revoked:
T-FASH_N-2_CP4_S4 Constraint set contains the following interconnector(s) on the left hand side:
NONE


Refer AEMO Electricity Market Notice 77468

Auto-generated on behalf of Manager NEM Real Time Operations
77478RECLASSIFY CONTINGENCY03/09/2020 05:49:35 PM

Cancellation of a Non-Credible Contingency Event: Farrell-John Butters line and Farrell-Rosebery-Newton-Queenstown 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-John Butters and Farrell-Rosebery-Newton-Queenstown

Cancellation time: 03/09/2020 17:49

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 77467

Auto-generated on behalf of Manager NEM Real Time Operations
77477INTER-REGIONAL TRANSFER03/09/2020 08:03:45 PM

Cancellation - Inter-regional transfer limit variation - VIC to NSW Interconnector - Voltage Control.

AEMO ELECTRICITY MARKET NOTICE

Cancellation - Inter-regional transfer limit variation - VIC to NSW Interconnector - Voltage Control.

Refer AEMO Electricity Market Notices. 77456

Voltage control issues across the VIC to NSW Interconnection are no longer present.

The following constraint set has been revoked.

I-VN_1100 revoked 2000 hrs

The constraint set contains equations with the following interconnector on the LHS.

VIC1-NSW1

Manager NEM Real Time Operations
77476MARKET SYSTEMS03/09/2020 04:54:59 PM

CHG0060236 : Planned System Maintenance - STTM Production Systems - Active Site Windows Patching in Norwest - Rescheduled

Change Number: CHG0060236

Notification issued to: Market Notice

Notification Type: Rescheduled

Change Type: Normal

Service/ Component: Short Term Trading Market

Change Title: Planned System Maintenance - STTM Production Systems - Active Site Windows Patching in Norwest

Change Start Date & Time: 10/09/2020 17:30:00 AEST

Change End Date & Time: 10/09/2020 22:30:00 AEST

Outage Start Date & Time: 10/09/2020 18:30:00 AEST

Outage End Date & Time: 10/09/2020 21:30:00 AEST

Change Description:

Maintenance is to be performed on the Production STTM to increase reliability, security and stability of the system. During the maintenance, there will be an outage to the application as per the times mentioned.

Environment: Production

Participant Impact and Requirements:

There will be no access to the Production STTM systems for the duration of the outage. Please access outside these hours.

Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
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