Market Notices

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

AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the NSW region for the following periods:

[1.] From 0800 hrs 20/06/2024 to 0830 hrs 20/06/2024.
The forecast capacity reserve requirement is 1750 MW.
The minimum capacity reserve available is 1358 MW.

[2.] From 1730 hrs 20/06/2024 to 1900 hrs 20/06/2024.
The forecast capacity reserve requirement is 1750 MW.
The minimum capacity reserve available is 1586 MW.


Manager NEM Real Time Operations

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

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: QLD1

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

Duration: 19/06/2024 06:20 until further notice

Constraint set(s) invoked:
NONE

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: QLD1

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

Duration: 19/06/2024 06:20 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Refer to market notice 117027

There is an opportunity for testing QNI Minor for flows from Qld to NSW up to 1300 MW on Wednesday 19th June 2024 from 0700 to 1000hrs.

This test includes a trip and reclose of a line in northern NSW.

Please also refer to the published formal QNI minor testing information at the following link:
https://www.aemo.com.au/consultations/current-and-closed-consultations/qld-to-nsw-interconnector-qni-upgrade

Ben Blake
AEMO Operations

AEMO ELECTRICITY MARKET NOTICE

The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 117048 is cancelled at1845 hrs 18/06/2024

Manager NEM Real Time Operations