Market Notices

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: Gordon - Chapel St No 1 220kV and Gordon - Chapel St No 2 220kV

Cancellation time: 23/10/2024 19:44

Constraint set(s) revoked:
F-T-CSGO Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1
T-CSGO_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE


Refer AEMO Electricity Market Notice 119258

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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: Gordon - Chapel St No 1 220kV and Gordon - Chapel St No 2 220kV

Duration: 23/10/2024 18:41 until further notice

Constraint set(s) invoked:
F-T-CSGO Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1
T-CSGO_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE


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AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE SA1 Region Wednesday, 23 October 2024

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

Unit: DALNTH1
Duration: 23/10/2024 12:15 to 23/10/2024 12:25
Amount: 14 MW
Constraint: NC-S_DALNTH1

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Change Number: CHG0099235
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Local Area Network
Change Title: Migrate Pre-Production (PPD) VLAN 108 Gateway in Norwest from the Old Core Switches to the New Core Switches.
Change Start Date & Time: 24/10/2024 10:00:00 AEST
Change End Date & Time: 24/10/2024 16:00:00 AEST
Outage Start Date & Time: 24/10/2024 11:57:00 AEST
Outage End Date & Time: 24/10/2024 12:02:00 AEST
Environment: Production
Participant Impact and Requirements:
Planned maintenance has been scheduled for the 24th October, commencing 11:57am - 12:02pm AEST. During this time there will be a brief outage (Up to 30 seconds) impacting the following Pre-Production systems:

- MSATS Retail
- EMMS Wholesale
- GAS Market Systems
- WA Market Systems

The maintenance being carried out relates to infrastructure only, no application or functional changes are being performed. If you experience system related issues beyond the outage window (12:02pm) please contact the AEMO Support Hub.

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?id=pp_services_status for any
planned/unplanned maintenance activities .

Change Number: CHG0099241
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Local Area Network
Change Title: Migrate DEV / TEST / Pre-Production (PPD) VLAN 104 Gateway in Norwest from the Old Core Switches to the New Core Switches.
Change Start Date & Time: 24/10/2024 10:00:00 AEST
Change End Date & Time: 24/10/2024 16:00:00 AEST
Outage Start Date & Time: 24/10/2024 11:57:00 AEST
Outage End Date & Time: 24/10/2024 12:02:00 AEST
Environment: Production
Participant Impact and Requirements:
Planned maintenance has been scheduled for the 24th October, commencing 11:57am - 12:02pm AEST. During this time there will be a brief outage (Up to 30 seconds) impacting the following Pre-Production systems:

- MSATS Retail
- EMMS Wholesale
- GAS Market Systems
- WA Market Systems

The maintenance being carried out relates to infrastructure only, no application or functional changes are being performed. If you experience system related issues beyond the outage window (12:02pm) please contact the AEMO Support Hub.

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?id=pp_services_status for any
planned/unplanned maintenance activities .

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE QLD1 Region Tuesday, 22 October 2024

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

Unit: YABULU2
Duration: 22/10/2024 16:55 to 22/10/2024 17:05
Amount: -20 MW
Constraint: NC-Q_YABULU2

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AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE NSW1 Region Tuesday, 22 October 2024

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

Unit: RIVNB2
Duration: 22/10/2024 15:00 to 22/10/2024 15:05
Amount: 18 MW
Constraint: NC-N_RIVNB2

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AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE NSW1 Region Tuesday, 22 October 2024

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

Unit: DPNTB1
Duration: 22/10/2024 14:55 to 22/10/2024 15:05
Amount: 9 MW
Constraint: NC-N_DPNTB1

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Change Number: CHG0098837

Notification issued to: Market Notice

Notification Type: Completed

Change Type: Normal

Service/Component: Electricity Market Management System_PreProd

Change Title: EMMS-Pre-Production Bay transfer for Core switch Refresh

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