Market Notices

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - VIC region - 18/10/2024

At 1525 hrs the Rowville - Yallourn No. 7 220 kV Line and the Rowville - Yallourn No. 8 220 kV Line tripped and auto-reclosed.

AEMO did not instruct load shedding.

AEMO has not been advised of any disconnection of bulk electrical load.

The cause of this non credible contingency event is not known at this stage.


Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

A network augmentation has been commissioned in the NSW region at 2000 hrs 18/10/2024 as follows:

Stubo 330kV switching station has been cut into the existing Wellington - Wollar West 79 330 kV line to form the following circuits:

Wellington - Stubo SF 79 330 kV Transmission Line
Wollar West - Stubo SF 7M 330 kV Transmission Line

Manager NEM Real Time Operations

Change Number: CHG0099243

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: Declared Wholesale Gas Market (DWGM)

Change Title: Maintenance activities to be performed on the Declared Wholesale Gas Market Systems Pre-Production.

Change Start Date & Time: 23/10/2024 07:00:23 AEST
Change End Date & Time: 23/10/2024 17:30:33 AEST
Outage Start Date & Time: 23/10/2024 08:00:00 AEST
Outage End Date & Time: 23/10/2024 12:30:00 AEST

Environment: Pre-Production

Participant Impact and Requirements: This is a regular procedure to allow routine maintenance. short service outages over the day for DWGM services, includiing MIBB and Web Exchanger.

Pre-Production Declared Wholesale Gas Market Systems (DWGM)

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: CHG0098658

Notification issued to: Market Notice

Notification Type: Completed

Change Type: Normal

Service/Component: DWGM - Web Exchanger

Change Title: Planned System Maintenance - Declared Wholesale Gas Market (DWGM)

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

AEMO ELECTRICITY MARKET NOTICE

Refer to market notice 118930 - revised the testing times.

There is an opportunity for testing Heywood Interconnector (HIC) flow from Victoria to South Australia above 450MW on 16th October from 17:00hrs to 17th October 00:00hrs

This test includes a trip and reclose of a line in South Australia.

Please also refer to the published formal PEC Stage 1 and HIC capacity release testing information at the following link https://aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2023/project-energyconnect-stage-1-and-hic-capacity-release/pec-stage-1-and-hic---final-test-program.pdf?la=en.

Ben Blake
AEMO Operations

Change Number: CHG0098812

Notification issued to: Market Notice

Notification Type: Completed

Change Type: Normal

Service/Component: MSATS - Market Settlement & Transfer System

Change Title: Pre-Prod MSATS and eMDM November Maintenance Release

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

AEMO ELECTRICITY MARKET NOTICE

There is an opportunity for testing Heywood Interconnector (HIC) flow from Victoria to South Australia above 450MW on 16th October from 17:00hrs to 20:00hrs

This test includes a trip and reclose of a line in South Australia.

Please also refer to the published formal PEC Stage 1 and HIC capacity release testing information at the following link https://aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2023/project-energyconnect-stage-1-and-hic-capacity-release/pec-stage-1-and-hic---final-test-program.pdf?la=en.

Ben Blake
AEMO 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
Port Augusta Ap (39+ Deg C): 16th Oct, 17th Oct
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

Change Number: CHG0098814

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: MSATS - Consumer Administration and Transfer Solution(CATS)

Change Title: MSATS and eMDM November Maintenance Release

Change Start Date & Time: 27/10/2024 10:00:00 AEST
Change End Date & Time: 27/10/2024 17:00:00 AEST
Outage Start Date & Time: 27/10/2024 10:00:00 AEST
Outage End Date & Time: 27/10/2024 14:00:00 AEST

Environment: Production
Participant Impact and Requirements: Users will not be able to access MSATS during the outage period.

Meter data processing and RM reports will not be available during the outage period.

User Rights Management (URM) will continue to operate, however the administration screens will not be accessible.

MSATS B2B/B2M Transactions and B2B MSATS Screens will be unavailable during this outage

NMI Discovery will not be available during the outage period.

CDR and CDP will not be available during the outage period.