Market Notices

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Farrell - Sheffield Nos 1 and 2 220kV Lines - TAS region - 22/04/2024

At 1315 hrs 22/04/2024 there was an unplanned outage of Farrell - Sheffield Nos 1 and 2 220kV Lines.

The following constraint set(s) invoked at 1315 hrs 22/04/2024
T-X_FASH_C

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

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations

Change Number: CHG0088138

Notification issued to: Market Notice
Notification Type: Completed

Change Type: Normal

Service/Component: Firewall
Change Title: Brisbane MarketNet Firewall Refresh

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

Change Number: CHG0088121

Notification issued to: Market Notice
Notification Type: Completed

Change Type: Normal

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

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

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1300 hrs on 20 April 2024

CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 20 April 2024.

Refer to market notice: 116210

AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the NSW to VIC directional interconnector.

The negative residue constraint NRM_NSW1_VIC1 ceased operating at 1300 hrs on 20 April 2024.

This is an AEMO autogenerated Market Notice.

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1205 hrs on 20 April 2024

ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 20 April 2024.

Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the NSW to VIC directional interconnector.

The negative residue constraint set NRM_NSW1_VIC1 commenced operating from 1205 hrs on 20 April 2024.

This constraint set contains an equation with the following interconnectors on the LHS:
VIC1-NSW1

The RHS of the constraint equation may be adjusted to manage residues.


This is an AEMO autogenerated Market Notice.

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Tailem Bend 275 kV Capacitor - SA region - 19/04/2024

At 2341 hrs 19/04/2024 there was an unplanned outage of the Tailem Bend 275 kV Capacitor.

The following constraint set(s) invoked at 0005 hrs 20/04/2024
S-TBCP1

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

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Murraylink interconnector - VIC and SA regions - 19/04/2024

A planned outage of Murraylink interconnector was scheduled from 0800 hrs 24/03/2024 to 1700 hrs 27/04/2024.

The outage has been completed and Murraylink interconnector returned to service at 1710 hrs 19/04/2024

Constraint set(s) revoked: I-MURRAYLINK

This constraint set(s) contains equations with the following interconnectors on the LHS.

V-S-MNSP1
VIC1-NSW1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations

Change Number: CHG0088386
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: 04/05/2024 09:00:01 AEST
Change End Date & Time: 04/05/2024 14:00:01 AEST
Outage Start Date & Time: 04/05/2024 09:30:32 AEST
Outage End Date & Time: 04/05/2024 12:30:32 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 .

Change Number: CHG0088831
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal

Service/ Component: Identity Service (IDS)

Change Title: Identity Service Config Update in Production.
Change Start Date & Time: 22/04/2024 12:00:53 AEST
Change End Date & Time: 22/04/2024 14:30:01 AEST
Outage Start Date & Time:
Outage End Date & Time:

Environment: Production
Participant Impact and Requirements: Brief loss of redundancy might be noticed for users using Markets portal , between 12:30 PM and 13:00 PM.

Identity Service is used by the following systems:
*MSATS
*APIs (EMMS, GBB, MSATS)

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 .