Market Notices

114642POWER SYSTEM EVENTS13/02/2024 04:14:12 PM

Non-credible contingency event - TAS region - 13/02/2024

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - TAS region - 13/02/2024

At 1602 hrs the Norwood -Scottsdale 110kV line and the Norwood - Scottsdale -Derby 110kV line tripped.

AEMO did not instruct load shedding.

AEMO has been advised 8MW of electrical load and 24MW of generation has been disconnected.

The cause of this non credible contingency event is not known at this stage.

Manager NEM Real Time Operations
114625POWER SYSTEM EVENTS13/02/2024 03:06:04 PM

Significant power system event - Victoria region - 13/02/2024

AEMO ELECTRICITY MARKET NOTICE.

At 1308 hrs 13/02/2024 the Moorabool Sydenham No1 and No2 500 kV lines tripped.
There have been reports of towers on the ground.

In the Victorian region
1000 MW of customer load lost during the fault has been restored
2690 Generation tripped

The AEMO instructed loadshed of 300 MW is being progressively restored.

Updates will be provided as additional information becomes available.

This Market Notice is issued in accordance with NER clause 4.8.3.

Manager NEM Real Time Operations
114577POWER SYSTEM EVENTS13/02/2024 01:22:13 PM

Significant power system event - 13 Feb 2024

AEMO ELECTRICITY MARKET NOTICE.

Significant power system event - 13 Feb 2024

At 1308 hrs 13/02/2024 a significant power system event occurred.

Description of event - Multiple tripping of generation and transmission lines in the Vic region

Transmission element(s) tripped - Moorabool Sydenham No1 and No2 500 kV lines tripped

Region/s - Vic

Load interrupted - in excess of 1000 MW

Generation volume tripped - 2300 MW

Updates will be provided as additional information becomes available.

This Market Notice is issued in accordance with NER clause 4.8.3.


Manager NEM Real Time Operations
114561GENERAL NOTICE13/02/2024 12:03:06 PM

Variation to FCAS regulation raise requirements: NEM Mainland - 13/02/2024

AEMO ELECTRICITY MARKET NOTICE

Variation to FCAS regulation raise requirements: NEM Mainland - 13/02/2024

FCAS Raise regulation requirements have been increased.to manage frequency.

The following constraint set has been invoked.

F-MAIN_RREG_0450 at 1200 hrs.


Manager NEM Real Time Operations
114521GENERAL NOTICE12/02/2024 10:44:42 AM

NEM Local Temperature Alerts for SA, VIC from 12 Feb 2024 to 16 Feb 2024

AEMO ELECTRICITY MARKET NOTICE

AEMO's weather service provider has issued forecast temperatures equal to or greater than the NEM Local Temperature Alert Levels for listed weather stations below.

SA
Clare High School (39+ Deg C): 12th Feb
Port Augusta Ap (39+ Deg C): 12th Feb, 13th Feb

VIC
Mildura Ap (39+ Deg C): 12th Feb, 13th Feb

The NEM Local Temperature Alert Levels are:

Launceston Ti Tree Bend: 33 Deg C, Dalby Airport: 37 Deg C, for all other selected weather stations: 39 Deg C.

AEMO requests Market Participants to:

1. review the weather forecast in the local area where their generating units / MNSP converter stations are located and,

2. if required, update the available capacity in their dispatch offers or availability submissions consistent with the forecast temperatures.

Further information is available at:

https://aemo.com.au/energy-systems/electricity/national-electricity-market-nem/nem-forecasting-and-planning/forecasting-and-reliability/projected-assessment-of-system-adequacy/nem-local-temperature-alerts

AEMO Operations Planning
114459MARKET SYSTEMS09/02/2024 03:04:19 PM

CHG0083624 | Production | A production site transfer of the Electricity and Gas B2B Hub will be carried out to facilitate maintenance activities.

Change Number: CHG0083624
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: 18/02/2024 09:00:00 AEST
Change End Date & Time: 18/02/2024 17:00:00 AEST
Outage Start Date & Time:
Outage End Date & Time:
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 .
114451GENERAL NOTICE09/02/2024 12:28:32 PM

NEM Local Temperature Alerts for SA, VIC from 09 Feb 2024 to 13 Feb 2024

AEMO ELECTRICITY MARKET NOTICE

AEMO's weather service provider has issued forecast temperatures equal to or greater than the NEM Local Temperature Alert Levels for listed weather stations below.

SA
Port Augusta Ap (39+ Deg C): 11th Feb, 12th Feb

VIC
Mildura Ap (39+ Deg C): 12th Feb, 13th Feb

The NEM Local Temperature Alert Levels are:

Launceston Ti Tree Bend: 33 Deg C, Dalby Airport: 37 Deg C, for all other selected weather stations: 39 Deg C.

AEMO requests Market Participants to:

1. review the weather forecast in the local area where their generating units / MNSP converter stations are located and,

2. if required, update the available capacity in their dispatch offers or availability submissions consistent with the forecast temperatures.

Further information is available at:

https://aemo.com.au/energy-systems/electricity/national-electricity-market-nem/nem-forecasting-and-planning/forecasting-and-reliability/projected-assessment-of-system-adequacy/nem-local-temperature-alerts

AEMO Operations Planning
114437GENERAL NOTICE08/02/2024 10:20:20 AM

NEM Local Temperature Alerts for SA from 08 Feb 2024 to 12 Feb 2024

AEMO ELECTRICITY MARKET NOTICE

AEMO's weather service provider has issued forecast temperatures equal to or greater than the NEM Local Temperature Alert Levels for listed weather stations below.

SA
Port Augusta Ap (39+ Deg C): 11th Feb, 12th Feb

The NEM Local Temperature Alert Levels are:

Launceston Ti Tree Bend: 33 Deg C, Dalby Airport: 37 Deg C, for all other selected weather stations: 39 Deg C.

AEMO requests Market Participants to:

1. review the weather forecast in the local area where their generating units / MNSP converter stations are located and,

2. if required, update the available capacity in their dispatch offers or availability submissions consistent with the forecast temperatures.

Further information is available at:

https://aemo.com.au/energy-systems/electricity/national-electricity-market-nem/nem-forecasting-and-planning/forecasting-and-reliability/projected-assessment-of-system-adequacy/nem-local-temperature-alerts

AEMO Operations Planning
114415GENERAL NOTICE07/02/2024 01:50:29 PM

QNI Minor testing (NSW to Qld) 7th February 2024

AEMO ELECTRICITY MARKET NOTICE

Refer to market notice 113265

There is an opportunity for testing QNI Minor for flows from NSW to Qld up to 750 MW on Wednesday 7th February 2024 from 1400 to 1800hrs.

This test includes a trip and reclose of a line in northern NSW.

Please also refer to the published formal QNI minor testing information at the following link:
https://www.aemo.com.au/consultations/current-and-closed-consultations/qld-to-nsw-interconnector-qni-upgrade

Ben Blake
AEMO Operations
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