Market Notices

AEMO ELECTRICITY MARKET NOTICE

Direction - SA region 18/07/2024

Refer to Market Notice 117359


In accordance with section 116 of the National Electricity Law, AEMO is issuing a direction to AGL SA Generation Pty Limited. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a1)(1).

Direction issued to: AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN at 1700 hrs 18/07/2024
Type of resource: generating unit
Required actions: remain synchronised and follow dispatch targets at 0030 hrs 19/07/2024
Services provided: Voltage Control
Circumstances necessitating the Direction: Voltage
Circumstances necessitating the Direction additional detail: intervention is required to maintain the power system in a secure operating state
Expected duration: 1400 hrs 19/07/2024.

AGL SA Generation Pty Limited does not incur any civil monetary liability for a relevant action taken in accordance with this direction unless the action is taken in bad faith.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Direction - SA region 18/07/2024

In accordance with section 116 of the National Electricity Law, AEMO has issued a direction to a participant in the SA region. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a1)(1).

The issue of the direction commences an AEMO intervention event. AEMO declares all trading intervals during the event to be intervention trading intervals, commencing from the interval ending 1705 hrs on 18/07/2024.

Intervention pricing does not apply to this AEMO intervention event.

AEMO may issue or revoke additional directions in order to meet the current requirement, unless sufficient market response is provided. A further market notice will be issued when all directions related to this requirement have been cancelled.


Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Update - Foreseeable AEMO intervention in SA region

Refer AEMO Electricity Market Notice 117357

AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the SA region from 0030 hrs 19/07/2024.

The foreseeable circumstance requiring the need for intervention is Voltage.

AEMO estimates that, in the absence of sufficient market response by 1700 hrs 18/07/2024, AEMO may need to intervene by issuing a direction.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE.

Reclassification of a non-credible contingency event as a credible contingency event due to severe weather warning.

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: SA

Lines: Para-Templers West and Magill-Torrens Island A 275kV lines

Duration: 18/07/2024 11:30 until further notice
Constraint set(s) invoked: Nil

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region

AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the SA region from 0030 hrs 19/07/2024.

The foreseeable circumstance requiring the need for intervention is Voltage.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Network Augmentation Commissioned - VIC Region - 18/07/2024

At 2044 hrs 18,07/2024, Cressy Terminal Station has been cut into the existing Moorabool - Haunted Gully No.1 500 kV line to form the following circuits:

Cressy - Haunted Gully No 1 500 kV line
Cressy - Moorabool No 1 500 kV line

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Tungkillo-Tailem_Bnd 1 275kV LINE - SA region - 16/07/2024

A planned outage of Tungkillo-Tailem_Bnd 1 275kV LINE in the SA region was scheduled from 0845 hrs 16/07/2024 to 1630 hrs 16/07/2024.

The outage has been completed and Tungkillo-Tailem_Bnd 1 275kV LINE returned to service at 1255 hrs 16/07/2024

Constraint set(s) revoked: S-TBTU

Manager NEM Real Time Operations

Change Number: CHG0090458
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal

Service/ Component: Internet Access
Change Title: Planned Maintenance to Brisbane Internet firewall.

Change Start Date & Time: 20/07/2024 14:00:22 AEST
Change End Date & Time: 20/07/2024 17:00:22 AEST
Outage Start Date & Time: 20/07/2024 14:30:26 AEST
Outage End Date & Time: 20/07/2024 14:35:26 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) - Nil

B2B VPN - May experience a short 5-10 second drop of VPN tunnel connectivity to Brisbane 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 NSW 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 .

Change Number: CHG0091273

Notification issued to: Market Notice

Notification Type: Completed

Change Type: Normal

Service/Component: MDM - Meter Data Management

Change Title: Pre-Prod MASTS - eMDM Maintenance AKS v1.28 upgrade

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