Market Notices

121691MARKET SYSTEMS10/12/2024 02:53:04 PM

CHG0100257 | Production | MarketNet Services via Brisbane service disruption for 1-3 seconds as traffic is failed between highly available load balancing services

Change Number: CHG0100257

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: Local Area Network

Change Title: MarketNet Services via Brisbane service disruption for 1-3 seconds as traffic is failed between highly available load balancing services.

Change Start Date & Time: 12/12/2024 14:00:00 AEST
Change End Date & Time: 12/12/2024 16:00:00 AEST
Outage Start Date & Time: 12/12/2024 15:00:00 AEST
Outage End Date & Time: 12/12/2024 15:01:00 AEST

Environment: Production

Participant Impact and Requirements: During there change, there will be a 1-3 second service disruption to MarketNet Services accessed via Brisbane as traffic moves from the active to the standby load balancing unit. All Services should return to normal after this time. Traffic via Norwest will not be affected during this time.

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 .
     
121688INTER-REGIONAL TRANSFER10/12/2024 01:00:33 PM

Inter-regional transfer limit variation - constraint automation to manage Power System Security in QLD region - 10 Dec 2024

AEMO ELECTRICITY MARKET NOTICE

In order to maintain the power system in a secure operating state in the QLD region, AEMO has invoked automated constraint set CA_SYD_566A36E5 from 1245 hrs until further notice.

This constraint set contains equations with the following interconnector on the LHS;

NSW1-QLD1, N-Q_MNSP1

Refer to AEMO Network Outage Scheduler (NOS) for further information.

Manager NEM Real Time Operations
     
121627INTER-REGIONAL TRANSFER08/12/2024 04:05:37 PM

Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 08/12/2024

AEMO ELECTRICITY MARKET NOTICE

In order to maintain the power system in a secure operating state in the NSW region, AEMO has invoked automated constraint set CA_BRIS_5667C22F from 1600 hrs until further notice.

This constraint set contains equations with the following interconnector on the LHS;

N-Q-MNSP1

Refer to AEMO Network Outage Scheduler (NOS) for further information.

Manager NEM Real Time Operations
     
121618MINIMUM SYSTEM LOAD08/12/2024 12:40:09 PM

Cancellation - Forecast Minimum System Load 1 (MSL1) condition in the VIC Region on 08/12/2024

AEMO ELECTRICITY MARKET NOTICE

Cancellation - Forecast MSL1 - VIC Region at 1230 hrs 08/12/2024.

Refer to Market Notice 121617 for Forecast MSL1.

Manager NEM Real Time Operations
     
121617MINIMUM SYSTEM LOAD08/12/2024 09:57:19 AM

Forecast Minimum System Load MSL1 condition in the VIC Region on 08/12/2024

AEMO ELECTRICITY MARKET NOTICE
Forecast Minimum System Load MSL1 condition in the VIC Region on 08/12/2024

Update to Market Notice 121508 - AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the VIC on 08/12/2024.

Minimum regional demand is forecast to be 1299 MW at 1300 hrs, and the advisory threshold is:
o MSL1 - 1560 MW
o MSL2 - 1060 MW
o MSL3 - 560 MW

The regional demand is forecast to be below the MSL1 threshold for the following period[s]:
From 1130 hrs 08/12/2024 to 1400 hrs 08/12/2024.

Manager NEM Real Time Operations
     
121614INTER-REGIONAL TRANSFER08/12/2024 04:00:08 AM

Inter-regional transfer limit variation - Glenn Innes to Tenterfield 96R 132kV line- NSW region - 08/12/2024

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation -Glenn Innes to Tenterfield 96R 132kV line - NSW region - 08/12/2024

At 0333 hrs 08/12/2024 there was an unplanned outage of Glenn Innes to Tenterfield 96R 132kV line.

The following constraint set(s) invoked at 0345 hrs 08/12/2024
N-96L_96R_CB4102

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

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations
     
121508MINIMUM SYSTEM LOAD06/12/2024 02:43:31 PM

Forecast Minimum System Load (MSL1) condition in the VIC region on 08/12/2024

AEMO ELECTRICITY MARKET NOTICE

AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the VIC region on 08/12/2024.

Minimum System Load (MSL) conditions are forecast when regional demand is less than the relevant MSL threshold. The advisory MSL thresholds are:
o MSL1 - 1590 MW
o MSL2 - 1090 MW
o MSL3 - 590 MW

The regional demand is forecast to be below the MSL1 threshold for the following period:

1. From 1200 hrs 08/12/2024 to 1330 hrs 08/12/2024. Minimum regional demand is forecast to be 1496 MW at 1300 hrs.

Forecast regional demand (DEMAND50) is published in Short Term and Pre-Dispatch PASA region solution reports available on Market Data NEMWEB: https://aemo.com.au/en/energy-systems/electricity/national-electricity-market-nem/data-nem/market-data-nemweb .

AEMO Operations
     
121490MARKET SYSTEMS05/12/2024 04:10:19 PM

CHG0100220 | Pre-Production | Pre-Production Electricity Market Management System (EMMS) Maintenance - Outages

Change Number: CHG0100220

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: Electricity Market Management System_PreProd

Change Title: Pre-Production Electricity Market Management System (EMMS) Maintenance - Outages

Change Start Date & Time: 09/12/2024 08:00:00 AEST
Change End Date & Time: 10/12/2024 23:00:00 AEST
Outage Start Date & Time: 09/12/2024 08:00:00 AEST
Outage End Date & Time: 10/12/2024 23:00:00 AEST

Environment: Pre-Production

Participant Impact and Requirements: This Maintenance activity may cause intermittent outages to below applications during the outage period .

Impacted Systems:
1.EMMS systems (Dispatch/ PASA/ Forecasting/ Settlements)
2.Identity Service will be running only for authentication purposes.
3.Web Portal including menu items (Markets, Internal & Public portal)
4.GSH
5.GBB
6.Any GAS systems that have a NEMA / WARA database connection.
7.MSATS
8.CDR
9.DERR

If any ongoing issues are identified, please contact the AEMO Support Hub 1300 236 600.

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 .
     
121380MARKET SYSTEMS02/12/2024 03:08:13 PM

INC0138848 - ALERT - EMMS - RESOLVED

SERVICE INTERRUPTION - RESOLVED

The service interruption relating to the Electricity Market Management System service has been resolved.

For further enquiries please contact the AEMO Support Hub

Phone: 1300 236 600

Email: supporthub@aemo.com.au

AEMO IT Duty Manager
     
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