Market Notices

AEMO ELECTRICITY MARKET NOTICE.

At 1308 hrs 13/02/2024 the Moorabool Sydenham No1 and No2 500 kV lines tripped.
There have been reports of towers on the ground.

In the Victorian region
1000 MW of customer load lost during the fault has been restored
2690 Generation tripped

The AEMO instructed loadshed of 300 MW is being progressively restored.

Updates will be provided as additional information becomes available.

This Market Notice is issued in accordance with NER clause 4.8.3.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE.

Significant power system event - 13 Feb 2024

At 1308 hrs 13/02/2024 a significant power system event occurred.

Description of event - Multiple tripping of generation and transmission lines in the Vic region

Transmission element(s) tripped - Moorabool Sydenham No1 and No2 500 kV lines tripped

Region/s - Vic

Load interrupted - in excess of 1000 MW

Generation volume tripped - 2300 MW

Updates will be provided as additional information becomes available.

This Market Notice is issued in accordance with NER clause 4.8.3.


Manager NEM Real Time Operations

Change Number: CHG0083624
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Gas Hub

Change Title: A production site transfer of the Electricity and Gas B2B Hub will be carried out to facilitate maintenance activities.

Change Start Date & Time: 18/02/2024 09:00:00 AEST
Change End Date & Time: 18/02/2024 17:00:00 AEST
Outage Start Date & Time:
Outage End Date & Time:
Environment: Production

Participant Impact and Requirements: The following impacts are expected during this maintenance:
- All access to the Electricity B2B Hub will be unavailable.
- All access to the Gas B2B Hub and all ebXML gateways (AEMOMIBB, AGNLGWY, LVI & VENCORP) will be unavailable. CATS and MDMT transactions for VIC/QLD will be delayed during the maintenance window.
- Users are not required to take any action due to this change, however will need to enact manual workarounds for the outage period.

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: CHG0082609
Notification issued to: Market Notice
Notification Type: Initial

Change Type: Normal
Service/ Component: MSATS - Consumer Administration and Transfer Solution(CATS)
Change Title: MSATS-CATS Production Maintenance
Change Start Date & Time: 18/02/2024 09:00:00 AEST
Change End Date & Time: 18/02/2024 17:00:00 AEST
Outage Start Date & Time: 18/02/2024 10:00:00 AEST
Outage End Date & Time: 18/02/2024 14:00:00 AEST

Environment: Production

The change has some login outages that are below and will impact participants logging into the web portal for MSATS, OPDMS, NOS and EMMS production environments.
AEMO recommends users who need to use these AEMO services, login prior to the start of the outage and remain logged in.
NOTE: If you log out of this session, you will be unable to log back in until the completion of the outage.
A URM outage will occur between 11:00 - 11:30 AEST and have an expected outage duration of upto 15 minutes. During this time users will not be able to have new login sessions into TMM, OPDMS, NOS or EMMS WebPortal.

The MSATS outage is 10:00 - 14:00 AEST which is the agreed maintenance window.
Participants should be aware that: MSATS, Meter data processing, RM reports, B2B, B2M screen, NMI Discovery, CDR, CDP will not be available Participant passwords will be retained. Users that log out and users that try to log in once the URM outage has commenced will only be able to log in after URM outage is complete. Any password resets or new account creations completed during the URM outage window will need to be redone MSATS FTP sessions will be disabled during outage Wholesale MMS FTP will still be available .

The redirection menu will be unavailable during the MSATS outage timeframe Report any impacts to the AEMO Information and Support Hub or call 1300 236 648.

Change Number: CHG0082564
Notification issued to: Market Notice
Notification Type: Completed

Change Type: Normal
Service/Component: EMMS - WebPortal

Change Title: Identity Service Site Transfer

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

Change Number: CHG0082222

Notification issued to: Market Notice

Notification Type: Completed

Change Type: Normal

Service/Component: Electricity Market Management System

Change Title: EMMS Production Systems will be transferred to the alternative datacentre for maintenance activities .

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

Change Number: CHG0082787

Notification issued to: Market Notice

Notification Type: Completed

Change Type: Normal

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

Change Title: Pre-Production MSATS r50.0.5 Patch Release

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

AEMO ELECTRICITY MARKET NOTICE

AEMO considers that there are suspect Forecast LOR3 conditions for the QLD region for the following periods:

1. From 0900 hrs to 1000 hrs 01/02/2024.
The maximum load (other than interruptible loads) forecast to be interrupted is 38 MW at 0930 hrs.

2. From 1130 hrs to 1200 hrs 01/02/2024.
The maximum load (other than interruptible loads) forecast to be interrupted is 62 MW at 1130 hrs.

AEMO is currently investigating these LOR3 forecast conditions to confirm whether they are valid.

AEMO Operations

AEMO ELECTRICITY MARKET NOTICE.

Cancellation - Non-credible contingency event - QLD region - 27/01/2024

Refer AEMO Electricity Market Notice 113825

At 0138 hrs the Gin Gin (H6) No.2 275 kV Busbar tripped.

AEMO has received further information and now determines this was not a non-credible contingency event.

Manager NEM Real Time Operations