Market Notices

AEMO ELECTRICITY MARKET NOTICE

Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. 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: QLD1

Lines: Strathmore - Clare South No.7208 132 kV and Strathmore - Clare South tee King Creek No.7128 132 kV

Duration: 06/03/2024 14:54 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. 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: QLD1

Lines: Collinsville - Stoney Creek 7306 132KV LINE and Collinsville - Newlands 7121 132KV LINE

Duration: 06/03/2024 14:39 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. 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: QLD1

Lines: Collinsville North - Proserpine No.7125 132 kV and Collinsville North - Proserpine No.7126 132 kV

Duration: 06/03/2024 14:39 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations

Change Number: CHG0086280
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: MSATS - Consumer Administration and Transfer Solution(CATS)
Change Title: Pre-Prod NEM Reform IESS Retail MSATS 53.0 Rlease
Change Start Date & Time: 12/03/2024 12:00:00 AEST
Change End Date & Time: 12/03/2024 17:00:00 AEST
Outage Start Date & Time: 12/03/2024 12:00:00 AEST
Outage End Date & Time: 12/03/2024 16:00:00 AEST
Environment: Pre-Production
Participant Impact and Requirements: Users will not be able to access MSATS during the outage period.

Meter data processing and RM reports will not be available during the outage period.

User Rights Management (URM) will continue to operate, however the administration screens will not be accessible.

MSATS B2B Transactions and B2B MSATS Screens will be unavailable during this outage

NMI Discovery will not be available during the outage period.

CDR and CDP will not be available during 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 .

AEMO ELECTRICITY MARKET NOTICE.

Cancellation of the reclassification of a Non-Credible contingency event as a Credible contingency event due to lightning.

AEMO considers the simultaneous trip of the following elements is no longer reasonably possible. Accordingly its classification has reverted to a non-credible contingency event.

Region: SA

Elements: Tungkillo- Robertstown No.1 and No.2 275kV lines and the Robertstown No.1 and No.2 synchronous condensers

Refer AEMO Electricity Market Notice 112320 and 111818

Constraint set: S-RBTU+SCON_N-2

Manager NEM Real Time Operations

Change Number: CHG0086834
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Emergency
Service/ Component: MDM - Meter Data Management
Change Title: MSATS - Enterprise MDM Emergency Maintenance
Change Start Date & Time: 06/03/2024 11:00:00 AEST
Change End Date & Time: 06/03/2024 20:00:00 AEST
Outage Start Date & Time: 06/03/2024 11:00:00 AEST
Outage End Date & Time: 06/03/2024 15:00:00 AEST
Environment: Production
Participant Impact and Requirements: Meter data processing and RM reports will not be available during the outage period.
CDR and CDP will not be available during the outage period.
NMI Discovery will not be available during the outage period.
MSATS, URM and B2B will continue to operate
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 .

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 0800 hrs 07/03/2024 will be inadequate to maintain a secure operating state in SA.
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

AEMO ELECTRICITY MARKET NOTICE

At 1210 hrs 06/03/2024 in the Victoria region, the Moorabool Sydenham No2 500 kV line returned to service on temporary towers.

Constraint set changes.

Revoked:
V-MLSY_NOEMTT_R

This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1
V-SA
V-S-MNSP1
VIC1- NSW1

Refer Market Notices 114577, 114768, 114686, 114770 and 115120.

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations

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
Adelaide West Terrace (39+ Deg C): 9th Mar, 10th Mar
Clare High School (39+ Deg C): 9th Mar
Mt Gambier Ap (39+ Deg C): 9th Mar
Port Augusta Ap (39+ Deg C): 8th Mar, 9th Mar, 10th Mar

VIC
Latrobe Valley Ap (39+ Deg C): 9th Mar, 10th Mar
Mildura Ap (39+ Deg C): 9th Mar, 10th Mar
Mortlake (39+ Deg C): 9th Mar

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