Market Notices

116129MARKET SYSTEMS15/04/2024 11:17:14 AM

CHG0088121 | Production | Production MSATS Lifecycle Maintenance

Change Number: CHG0088121
Notification issued to: Market Notice
Notification Type: Initial

Change Type: Normal
Service/ Component: MSATS - Consumer Administration and Transfer Solution(CATS)
Change Title: Production MSATS Lifecycle Maintenance
Change Start Date & Time: 21/04/2024 10:00:00 AEST
Change End Date & Time: 22/04/2024 12:00:00 AEST
Outage Start Date & Time: 21/04/2024 10:00:00 AEST
Outage End Date & Time: 21/04/2024 22:00:00 AEST

Environment: Production

The change 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.

The URM DB will be placed into maintenance mode from 11:15 to 16:30 AEST, users can can login in and authenticate but cannot modify credentials or create new logins.
A URM OUTAGE will occur between 16:30:00 - 17:00:00 AEST. During this time users will not be able to have create a new login sessions into TMM, OPDMS, NOS or EMMS WebPortal. Users who are already logged in will not be impacted.
An MSATS outage will occur from 10:00:00 - 20:00:00 AEST.

Participants should be aware that:
o MSATS, Meter data processing, RM reports, B2B, B2M screen, NMI Discovery, CDR, CDP will not be available
o Participant passwords will be retained.
o 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. Users that are already logged in before the outage will not be impacted.
o Plain English constraints will not be available during the URM outage timeframe via the EMMS web portal.
o The redirection menu will be unavailable i.e. - https://menu.prod.nemnet.net.au.

Report any impacts to the AEMO Information and Support Hub or call 1300 236 600.

116100MARKET SYSTEMS12/04/2024 02:56:28 PM

CHG0088138 | Production | Brisbane MarketNet Firewall Refresh

Change Number: CHG0088138
Notification issued to: Market Notice
Notification Type: Initial

Change Type: Normal
Service/ Component: Firewall
Change Title: Brisbane MarketNet Firewall Refresh
Change Start Date & Time: 20/04/2024 09:00:00 AEST
Change End Date & Time: 20/04/2024 15:00:00 AEST
Outage Start Date & Time: 20/04/2024 13:30:00 AEST
Outage End Date & Time: 20/04/2024 13:40:00 AEST

Environment: Production
Participant Impact and Requirements:
The following impacts are expected to participant connectivity during this planned outage:

IPWAN Participants - Nil

Lan-2-Lan VPN Participants (IPSEC) - Up to 6 hours for participants who have established their VPN connection/s via the AEMO QLD datacenter termination point (202.44.76.10) only - All L2L connections should be established to both QLD / NSW.

Note: Participants are encouraged to ensure their VPN connections are already established or are configured (as per AEMO best practice) to automatically failover to the alternate AEMO NSW datacenter termination point (202.44.78.10) prior to this scheduled outage.

B2B VPN - Up to 30 minutes outage to TNSPs with B2B VPN to AEMO QLD Datacentre if VPN connection is only terminating in QLD only

SSL VPN Participants: Up to 30 minutes outage to TNSPs with B2B VPN to AEMO QLD Datacentre if VPN connection is only terminating in QLD only

Expecting an impact to the below services for approximately 10 minutes from 13:30 AEST:
RTMS UI
WEMDE UI - General Instance
WASM MPI

Other Impacts will have been communicated in advance.
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 .
116098POWER SYSTEM EVENTS12/04/2024 01:39:23 PM

Update - Non-credible contingency event - TAS region - 12/04/2024

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - TAS region - 12/04/2024

Refer AEMO Electricity Market Notice 116095

At 1304 hrs the Sheffield - Farrell No.2 220 kV line was returned to service.

The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.

AEMO will not reclassify this event as a credible contingency event.

Manager NEM Real Time Operations
116096MARKET SYSTEMS12/04/2024 11:34:02 AM

CHG0087945 | Completed | Production | Planned System Maintenance activity

Change Number: CHG0087945
Notification issued to: Market Notice

Notification Type: Completed
Change Type: Normal

Service/Component: EMS NEM - Network Outage Scheduler (NOS)

Change Title: Planned System Maintenance activity.
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
116095POWER SYSTEM EVENTS12/04/2024 11:22:09 AM

Non-credible contingency event - TAS region - 12/04/2024

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - TAS region - 12/04/2024

At 1048 hrs the Sheffield - Farrell No.2 220 kV line tripped during restoration due to fault on the line.

AEMO did not instruct load shedding.

AEMO has been advised of disconnection of major industrial load approximately 550 MW.

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


Manager NEM Real Time Operations
116081MARKET SYSTEMS10/04/2024 06:04:34 PM

CHG0087908 | Completed | Pre-Production | Pre-Prod MSATS Lifecycle Maintenance

Change Number: CHG0087908
Notification issued to: Market Notice

Notification Type: Completed
Change Type: Normal

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

Change Title: Pre-Prod MSATS Lifecycle Maintenance
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
116078POWER SYSTEM EVENTS10/04/2024 03:44:19 PM

Update - Non-credible contingency event - QLD region - 10/04/2024

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - QLD region - 10/04/2024

Refer AEMO Electricity Market Notice 116072

At 1540 hrs the Ingham South to Cardwell 132 kV line was returned to service.

The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.

AEMO will not reclassify this event as a credible contingency event.

Manager NEM Real Time Operations
116073MARKET SYSTEMS10/04/2024 10:48:45 AM

CHG0085919 | Production | Removal of support of TLS Version 1.1 and lower

Change Number: CHG0085919
Notification issued to: Market Notice

Notification Type: Initial
Change Type: Normal

Service/ Component: MSATS - Business to Business data exchange
Change Title: Removal of support of TLS Version 1.1 and lower

Change Start Date & Time: 14/04/2024 09:00:00 AEST
Change End Date & Time: 14/04/2024 13:00:00 AEST
Outage Start Date & Time:
Outage End Date & Time:

Environment: Production

Participant Impact and Requirements: Participants using TLS version 1.1 and lower, need to update their servers to use TLSv1.2 as a minimum. Failing to do so would impact the connectivity with AEMO. An outage is not expected but, there may be some minor interruptions during the change 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 .
116072POWER SYSTEM EVENTS10/04/2024 09:08:03 AM

Non-credible contingency event - QLD region - 10/04/2024

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - QLD region - 10/04/2024

At 0730 hrs the Ingham South to Cardwell 132 kV line tripped at the Ingham South end only.

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
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