Market Notices

Change Number: CHG0090802

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: Electricity Market Management System

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

Change Start Date & Time: 24/06/2024 08:00:00 AEST

Change End Date & Time: 26/06/2024 17:30:00 AEST

Outage Start Date & Time: 25/06/2024 13:25:00 AEST

Outage End Date & Time: 25/06/2024 13:30:00 AEST

Environment: Production

Participant Impact and Requirements: The maintenance activity is not expected to have any impact however delays to Dispatch cycles, bid submission, and outage to the AEMO Markets Portal are possible during the outage window on Tuesday 25th June around 13:25 to 13:30 AEST.CDR will not be available during 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?d=pp_services_status for any planned/unplanned maintenance activities .

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: Bannaby - Mt Piper 5A6 500kV and Bannaby - Mt Piper 5A7 500kV

Cancellation time: 21/06/2024 00:39

Constraint set(s) revoked:
N-5A6+5A7_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
VIC1-NSW1


Refer AEMO Electricity Market Notice 117088

Auto-generated on behalf of Manager NEM Real Time Operations

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: Bannaby - Mt Piper 5A6 500kV and Bannaby - Mt Piper 5A7 500kV

Duration: 20/06/2024 23:34 until further notice

Constraint set(s) invoked:
N-5A6+5A7_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
VIC1-NSW1


Auto-generated on behalf of Manager NEM Real Time Operations

Change Number: CHG0090808

Notification issued to: Market Notice

Notification Type: Cancelled

Change Type: Normal

Service/ Component: Short Term Trading Market

Change Title: CANCELLED - Planned Outage for the Gas Short Term Trading Market Systems Production

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

Change Number: CHG0090631

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.

Change Number: CHG0090631

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: 18/06/2024 20:00:49 AEST

Change End Date & Time: 18/06/2024 23:30:49 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 .

AEMO ELECTRICITY MARKET NOTICE

The Rowville - South Morang 500 kV line in the Victoria (VIC) region is planned to be out of service from 1400 hrs to 1630 hrs on 20/06/2024.

A credible contingency event during this planned outage could cause:
- A large reduction in generation in VIC; and/ or
- Restrict power transfer across the VIC - South Australia (SA) interconnector (Heywood interconnector).

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

AEMO Operations

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: QLD1

Lines: Tumoulin - Woree No.877 275 kV and Chalumbin - Turkinje No.7166 132 kV

Cancellation time: 19/06/2024 07:24

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 117063

Auto-generated on behalf of Manager NEM Real Time Operations

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: QLD1

Lines: Chalumbin - Turkinje No.7165 132 kV and Chalumbin - Turkinje No.7166 132 kV

Cancellation time: 19/06/2024 07:24

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 117062

Auto-generated on behalf of Manager NEM Real Time Operations