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

AEMO ELECTRICITY MARKET NOTICE

Cancellation - Possible intervention to manage power system security in SA region 10/05/2024

Refer Market Notice 116561

AEMO no longer foresees a possible requirement for intervention to manage power system security in SA region. The advice of possible intervention is cancelled from 1400 hrs 09/05/2024.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Possible intervention to manage power system security in SA region

The synchronous generating units currently expected to be synchronised in SA from 0930 hrs 10/05/2024 will be inadequate to maintain a secure operating state in SA .
AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA .

Manager NEM Real Time Operations

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

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

Cancellation - Possible intervention to manage power system security in SA region 09/05/2024

Refer Market Notice 116528

AEMO no longer foresees a possible requirement for intervention to manage power system security in SA region. The advice of possible intervention is cancelled from 1400 hrs 08/05/2024.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Possible intervention to manage power system security in SA region

The synchronous generating units currently expected to be synchronised in SA from 0830 hrs 09/05/2024 will be inadequate to maintain a secure operating state in SA .
AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA .

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 - AEMO Intervention Event - Intervention trading intervals - Direction SA region 07/05/2024

Refer Market Notice 116510

The AEMO Intervention Event and all associated directions are cancelled from 0805 hrs 08/05/2024

Manager NEM Real Time Operations