Market Notices

116209INTER-REGIONAL TRANSFER20/04/2024 12:10:41 AM

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

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
     
116208INTER-REGIONAL TRANSFER19/04/2024 05:09:45 PM

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

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
     
116207MARKET SYSTEMS19/04/2024 02:58:59 PM

CHG0088386 | Production | QLD Internet Router Refresh

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 .
     
116206MARKET SYSTEMS19/04/2024 02:56:41 PM

CHG0088831 | Production | Identity Service Config Update in Production.

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 .
     
116205MARKET SYSTEMS19/04/2024 02:53:43 PM

CHG0088421 | Production | A production site transfer of the Electricity and Gas B2B Hub will be carried out to facilitate maintenance activities.

Change Number: CHG0088421
Notification issued to: Market Notice
Notification Type: Initial

Change Type: Normal
Service/ Component: Gas Hub

Change Title: A production site transfer of the Electricity and Gas B2B Hub will be carried out to facilitate maintenance activities.

Change Start Date & Time: 05/05/2024 09:00:00 AEST
Change End Date & Time: 05/05/2024 17:00:00 AEST
Outage Start Date & Time: 05/05/2024 10:00:00 AEST
Outage End Date & Time: 05/05/2024 14:00:00 AEST

Environment: Production
Participant Impact and Requirements: The following impacts are expected during this maintenance:
- All access to the Electricity B2B Hub will be unavailable.
- All access to the Gas B2B Hub and all ebXML gateways (AEMOMIBB, AGNLGWY, LVI & VENCORP) will be unavailable. CATS and MDMT transactions for VIC/QLD will be delayed during the maintenance window.
- Users are not required to take any action due to this change, however will need to enact manual workarounds for the outage period.

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.
     
116201MARKET INTERVENTION19/04/2024 05:02:32 PM

Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 18/04/2024

AEMO ELECTRICITY MARKET NOTICE

Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 18/04/2024

Refer Market Notice 116194

The AEMO Intervention Event and all associated directions are cancelled from 1700 hrs 19/04/2024

Manager NEM Real Time Operations
     
116200MARKET INTERVENTION19/04/2024 02:05:41 PM

Direction - SA region 19/04/2024

AEMO ELECTRICITY MARKET NOTICE.

Direction - SA region 19/04/2024

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(a).

The direction was necessary to maintain the power system in a secure operating state.

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.

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 1405 hrs on 19/04/2024.

Intervention pricing does not apply to this AEMO intervention event.

Manager NEM Real Time Operations
     
116198MARKET INTERVENTION19/04/2024 10:50:10 AM

Update - Possible intervention to manage power system security in SA region

AEMO ELECTRICITY MARKET NOTICE

Update - Possible intervention to manage power system security in SA region

Refer AEMO Electricity Market Notice 116197

The synchronous generating units currently expected to be synchronised in SA from 2330 hrs 19/04/2024 will be inadequate to maintain a secure operating state in SA .

AEMO estimates that, in the absence of sufficient market response by 1400 hrs 19/04/2024, 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
     
116197MARKET INTERVENTION19/04/2024 06:50:36 AM

Possible intervention to manage power system security in SA Region

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 2330 hrs 19/04/2024 will be inadequate to maintain sufficient system strength in SA and hence a secure operating state.
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
     
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