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: NSW1

Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV

Cancellation time: 20/02/2025 18:39

Constraint set(s) revoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1


Refer AEMO Electricity Market Notice 124940

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AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE NSW1 Region Thursday, 20 February 2025

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

Unit: CAPBES1
Duration: 20/02/2025 14:15 to 20/02/2025 14:25
Amount: 70 MW
Constraint: NC-N_CAPBES1

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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: NSW1

Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV

Duration: 20/02/2025 13:38 until further notice

Constraint set(s) invoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1


Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

AEMO's weather service provider has issued forecast temperatures equal to or greater than the NEM Local Temperature Alert Levels for listed weather stations below.

SA
Adelaide West Terrace (39+ Deg C): 22nd Feb
Clare High School (39+ Deg C): 22nd Feb
Mt Gambier Ap (39+ Deg C): 22nd Feb
Port Augusta Ap (39+ Deg C): 22nd Feb

VIC
Mildura Ap (39+ Deg C): 22nd Feb
Mortlake (39+ Deg C): 22nd Feb

The NEM Local Temperature Alert Levels are:

Launceston Ti Tree Bend: 33 Deg C, Dalby Airport: 37 Deg C, for all other selected weather stations: 39 Deg C.

AEMO requests Market Participants to:

1. review the weather forecast in the local area where their generating units / MNSP converter stations are located and,

2. if required, update the available capacity in their dispatch offers or availability submissions consistent with the forecast temperatures.

Further information is available at:

https://aemo.com.au/energy-systems/electricity/national-electricity-market-nem/nem-forecasting-and-planning/forecasting-and-reliability/projected-assessment-of-system-adequacy/nem-local-temperature-alerts

AEMO Operations Planning

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE SA1 Region Wednesday, 19 February 2025

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

Unit: CLEMGPWF
Duration: 19/02/2025 17:30 to 20/02/2025 07:55
Amount: 15 MW
Constraint: NC-S_CLEMGPWF

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AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE NSW1 Region Thursday, 20 February 2025

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

Unit: WTAHB1
Duration: 20/02/2025 03:30 to 20/02/2025 03:45
Amount: -8 MW
Constraint: NC-N_WTAHB1

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AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE NSW1 Region Thursday, 20 February 2025

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

Unit: WTAHB1
Duration: 20/02/2025 02:20 to 20/02/2025 03:00
Amount: -9 MW
Constraint: NC-N_WTAHB1

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Change Number: CHG0101145

Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: Internet Access
Change Title: Planned Maintenance to Norwest Internet Router

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

Change Number: CHG0101252

Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal

Service/ Component: MSATS - Consumer Administration and Transfer Solution(CATS)
Change Title: Retail Pre-Production Data refresh (CATS and EMDM)

Change Start Date & Time: 24/02/2025 09:00:00
Change End Date & Time: 28/02/2025 18:00:00
Outage Start Date & Time: 24/02/2025 09:00:00
Outage End Date & Time: 27/02/2025 18:00:00

Environment: Pre-Production
Participant Impact and Requirements: MSATS (preprod) between 24th Feb - 26 Feb COB, CDR (preprod) and CDP (preprod) will be unavailble between 24th Feb to 28th Feb COB

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 .