Market Notices

Change Number: CHG0089532

Notification issued to: Market Notice

Notification Type: Cancelled

Change Type: Normal

Service/ Component: Gas Supply Hub

Change Title: NOR Pre-Prod GSH will have scheduled maintenance works outage from 11.00am Thursday 9 May until 1pm (EST)

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

Change Number: CHG0089539

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: Internet Access

Change Title: QLD Internet Router Refresh

Change Start Date & Time: 25/05/2024 09:00:08 AEST
Change End Date & Time: 25/05/2024 14:00:08 AEST
Outage Start Date & Time: 25/05/2024 09:30:21 AEST
Outage End Date & Time: 25/05/2024 13:00:21 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 2 hour outage 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 2 hour outage to TNSPs with B2B VPN to AEMO QLD Datacentre if VPN connection is only terminating in QLD only

SSL VPN Participants: None expected as DNS entry will be updated to remove QLD IP.

GASHUB: No impact is expected as GASHUB is currently operating out of NOR Datacenter.

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.

Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event. AEMO considers the simultaneous trip of the following elements to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.

Region: Qld

Elements: Ross 275 kV SVC and Ross 275/132 kV No. 4 transformer

Duration: 1400 hrs 09/05/2024 until further notice

Constraint set(s) invoked:
Nil

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Blyth West to Munno Para 275 kV line - SA region - 08/05/2024

At 1536 hrs 08/05/2024 there was an unplanned outage of Blyth West to Munno Para 275 kV line.

The following constraint set(s) invoked at 1545 hrs 08/05/2024
S-X_BGBW+BWMP

This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S-MNSP1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Tamworth No. 1 330 kV Bus - NSW region - 08/05/2024

A planned outage of Tamworth No. 1 330 kV Bus in the NSW region was scheduled from 1200 hrs 08/05/2024 to 1800 hrs 10/05/2024.

The outage has been cancelled at 1154 hrs 08/05/2024

Constraint set(s) revoked: N-TW_330_BUS1, N-LDTW_84

This constraint set(s) contains equations with the following interconnectors on the LHS.
NSW1-QLD1
N-Q-MNSP1
T-V-MNSP1

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: Collinsville - Stoney Creek 7306 132KV LINE and Collinsville - Newlands 7121 132KV LINE

Cancellation time: 08/05/2024 01:09

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 116517

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: Collinsville - Stoney Creek 7306 132KV LINE and Collinsville - Newlands 7121 132KV LINE

Duration: 08/05/2024 00:07 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - DAPTO - MARULAN 8 330KV LINE - NSW region - 07/05/2024

A planned outage of DAPTO - MARULAN 8 330KV LINE in the NSW region was scheduled from 0830 hrs 27/04/2024 to 1000 hrs 07/05/2024.

The outage has been rescheduled to be completed by 1200 hrs 08/05/2024.

Constraint set(s) invoked: N-DTMN_8_15M

This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,NSW1-QLD1,VIC1-NSW1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations

Change Number: CHG0087670

Notification issued to: Market Notice

Notification Type: Completed

Change Type: Normal

Service/Component: MSATS - Consumer Administration and Transfer Solution(CATS)
Change Title: MSATS-CATS Production Maintenance

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