Market Notices

Change Number: CHG0098660

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: Cisco IP Phone

Change Title: Telco Outage Notification - Telstra Melbourne Indial (03 9609 XXXX-XXXX)

Change Start Date & Time: 24/09/2024 00:00:00 AEST

Change End Date & Time: 24/09/2024 06:00:00 AEST

Outage Start Date & Time:

Outage End Date & Time:

Environment: Production

Participant Impact and Requirements: Outage Duration:
1 x 3 Hours

Impacts:
Reduced redundancy for Inbound and Outbound Calls (automatically rerouted via Perth).

Support Information:

Report any impacts to the AEMO Information and Support Hub or call 1300 236 600.
Please refer to https://aemo.service-now.com/participantportal?d=pp_services_status for any planned/unplanned maintenance activities .

AEMO ELECTRICITY MARKET NOTICE

Cancellation - Reclassification of a Non-Credible Contingency Event: Eraring Power Station in NSW Region 23/09/2024

Refer to MN 118393

Based on advice from the asset owner, AEMO no longer considers the simultaneous trip of Eraring Power Station Units 2 and 4 as a credible contingency event.


Therefore AEMO cancels the reclassification as a credible contingency event from 1250 hrs 23/09/2024.

Constraint set N-ERARING_N-2 revoked from 1250 hrs 23/09/2024

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Reclassification of a Non-Credible Contingency Event: Eraring Power Station in NSW Region 23/09/2024

Based on advice from the asset owner, AEMO has declared the simultaneous trip of Eraring Power Station Units 2 and 4 as a credible contingency event.

AEMO considers the simultaneous trip of those generators to now be more likely.

AEMO has reclassified this as a credible contingency event from 1000 hrs 23/09/2024.

To manage power system security constraint set N-ERARING_N-2 invoked from 1000 hrs 23/09/2024 until further notice.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE QLD1 Region Monday, 23 September 2024

AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:

Unit: W/HOE#2
Duration: 23/09/2024 05:30 to 23/09/2024 05:45
Amount: -165 MW
Constraint: NC-Q_W/HOE#2

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AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE NSW1 Region Saturday, 21 September 2024

AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:

Unit: WTAHB1
Duration: 21/09/2024 15:00 to 21/09/2024 19:20
Amount: 7 MW
Constraint: NC-N_WTAHB1

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AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE QLD1 Region Saturday, 21 September 2024

AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:

Unit: MOUSF1
Duration: 21/09/2024 10:55 to 21/09/2024 11:35
Amount: 81 MW
Constraint: NC-Q_MOUSF1

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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: 21/09/2024 00:14

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 118345

Auto-generated on behalf of Manager NEM Real Time Operations

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: TAS

Lines: Gordon - Chapel Street No.1 and No.2 220 kV lines

Cancellation time: 0020 hrs 21/09/2024

Constraint sets revoked: F-T-CSGO and T-CSGO_N-2

Manager NEM Real Time Operations

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: 21/09/2024 00:09

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 118347

Auto-generated on behalf of Manager NEM Real Time Operations