Market Notices

116941RECLASSIFY CONTINGENCY11/06/2024 02:38:12 PM

Reclassification of a Non-Credible Contingency Event: Farrell-John Butters line and Farrell-Rosebery-Newton-Queenstown line in TAS1 due to Lightning.

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: Farrell-John Butters and Farrell-Rosebery-Newton-Queenstown

Duration: 11/06/2024 14:38 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
116939RECLASSIFY CONTINGENCY11/06/2024 02:19:06 PM

Cancellation of a Non-Credible Contingency Event: Farrell-John Butters line and Farrell-Rosebery-Newton-Queenstown line in TAS1 due to Lightning.

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: Farrell-John Butters and Farrell-Rosebery-Newton-Queenstown

Cancellation time: 11/06/2024 14:19

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 116937

Auto-generated on behalf of Manager NEM Real Time Operations
116937RECLASSIFY CONTINGENCY11/06/2024 01:17:02 PM

Reclassification of a Non-Credible Contingency Event: Farrell-John Butters line and Farrell-Rosebery-Newton-Queenstown line in TAS1 due to Lightning.

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: Farrell-John Butters and Farrell-Rosebery-Newton-Queenstown

Duration: 11/06/2024 13:16 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
116930MARKET SYSTEMS11/06/2024 08:18:14 AM

CHG0089972 | Completed | Production | Planned Maintenance to Norwest Internet firewall.

Change Number: CHG0089972
Notification issued to: Market Notice Notification
Type: Completed
Change Type: Normal Service/Component: Internet Access
Change Title: Planned Maintenance to Norwest Internet firewall.
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
116912MARKET SYSTEMS07/06/2024 04:25:23 PM

CHG0090456 | Production | Renewal and update of AEMO's FBS_Prod_Hub.aemo.com.au server certificate.

Change Number: CHG0090456
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal

Service/ Component: Market Network
Change Title: Renewal and update of AEMO's FBS_Prod_Hub.aemo.com.au server certificate.

Change Start Date & Time: 07/07/2024 10:00:00 AEST
Change End Date & Time: 07/07/2024 14:00:00 AEST
Outage Start Date & Time:
Outage End Date & Time:

Environment: Production
Participant Impact and Requirements: AEMO's FRC Gas Hub web services need to have their server certificates updated every year with new certificates to replace the expiring one.

Participants connecting to these endpoints or receiving requests from AEMO's FRC Gas Hub platforms and have authorisation mechanisms like certificate fingerprinting in place will notice a change in AEMO's server's certificate fingerprint and will need to update their systems accordingly.

The certificate relates to "FBS-Prod-Hub.aemo.com.au" certificate and relates to the following domains.
FBS-Prod-Hub.aemo.com.au
apis.prod.aemo.com.au
hub.aemo.com.au
prod.frchub.net
apis.prod.marketnet.net.au
hub.marketnet.net.au

Participants WILL need to update the profile that communicates with the above domains.

This will need to be done to avoid the inability to send messages to the relay.

The certificates can be downloaded from the link below:
https://www.digicert.com/secure/download-certificate/kb7jy1dywm60d2hnjfxl4bbblmgs2bh
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.
116911MARKET SYSTEMS07/06/2024 04:22:01 PM

CHG0089972 | Production | Planned Maintenance to Norwest Internet firewall.

Change Number: CHG0089972
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal

Service/ Component: Internet Access
Change Title: Planned Maintenance to Norwest Internet firewall.
Change Start Date & Time: 09/06/2024 08:00:40 AEST
Change End Date & Time: 09/06/2024 10:00:40 AEST
Outage Start Date & Time:
Outage End Date & Time:

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) - Nil

B2B VPN - May experience a short 5-10 second drop of VPN tunnel connectivity to Norwest DC.
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 QLD datacenter termination point prior to this scheduled outage.

SSL VPN Participants: Nil

GASHUB: Nil

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.
116907INTER-REGIONAL TRANSFER07/06/2024 07:56:38 AM

Inter-Regional Transfer limit variation - Outage Cancelled - Planned outage of Moorabool - Mortlake No.2 500 kV Line in Vic region on 7 June 2024.

AEMO ELECTRICITY MARKET NOTICE

The Moorabool - Mortlake No.2 500kV Line in Victoria (VIC) region was planned to be on an outage on 07/06/2024. This outage has been withdrawn by the TNSP.

Constraint sets associated with this outage have been revoked.
I-VS+LKB_050, I-VS_050, V-MLMO

These constraint sets contains equations with the following interconnectors on the LHS.
V-SA, VIC1-NSW1, T-V-MNSP1, V-S-MNSP1

Refer to the AEMO Network Outage Scheduler (NOS) for further information.

Manager NEM Real Time Operations
116906INTER-REGIONAL TRANSFER07/06/2024 04:39:57 AM

Inter-regional transfer limit variation - Heywood - Tarrone No.1 500kV line - VIC region - 07/06/2024

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Heywood - Tarrone No.1 500kV line - VIC region - 07/06/2024

At 0406 hrs 07/06/2024 there was an unplanned outage of Heywood - Tarrone No.1 500kV line

The following constraint set(s) invoked at 0415 hrs 07/06/2024
V-HYTR

This constraint set(s) contains equations with the following interconnectors on the LHS.
NSW1-QLD1, T-V-MNSP1, V-S-MNSP1, V-SA, VIC1-NSW1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations
116904INTER-REGIONAL TRANSFER06/06/2024 02:29:13 PM

Inter-Regional Transfer limit variation - Directlink - NSW Region

AEMO ELECTRICITY MARKET NOTICE

Inter-Regional Transfer limit variation - Directlink - NSW Region

There has been an unplanned outage of the No 1 Leg of Directlink, with the No.2 Leg of Directlink previously out-of-service.

The following constraint set was invoked at 1425 hrs 06/06/2024

N-X_MBTE_2

The constraint set contains the following interconnector on the left hand side.

N-Q-MNSP1

Refer AEMO Network Outage Scheduler (NOS) for further details.

Manager NEM Real Time Operations
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