Market Notices

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 16/02/2025.

Minimum System Load (MSL) conditions are forecast when regional demand is less than the relevant MSL threshold. The advisory MSL thresholds are:
o MSL1 - 2060 MW
o MSL2 - 1560 MW
o MSL3 - 1060 MW

The regional demand is forecast to be below the MSL1 threshold for the following period:
From 1130 hrs to 1430 hrs 16/02/2025. Minimum regional demand is forecast to be 1838 MW at 1330 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

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Ingleburn - Wallerawang (77) 330 kV line - NSW region - 10/02/2025

At 0945 hrs 10/02/2025 there was an unplanned outage of Ingleburn - Wallerawang (77) 330 kV line.

The following constraint set(s) invoked at 0955 hrs 10/02/2025
N-X_AVMA_SSWW

This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,NSW1-QLD1,VIC1-NSW1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation -Collector - Marulan (4) 330 kV line - NSW region - 06/02/2025

The outage has been completed and Collector - Marulan (4) 330 kV line returned to service at 0825 hrs 06/02/2025

Constraint set(s) revoked: N-CTMN_4_WG_CLOSE

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Collector WF to Marulan No. 4 330 kV Line - NSW region - 04/02/2025

A planned outage of Collector WF to Marulan No. 4 330 kV Line in the NSW region was scheduled from 0600 hrs 02/02/2025 to 1600 hrs 19/02/2025.

The outage has been completed and Collector WF to Marulan No. 4 330 kV Line returned to service at 1710 hrs 04/02/2025

Constraint set(s) revoked: N-CTMN_4_WG_CLOSE

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - South Morang - Dederang No.1 330kV line series capacitor - VIC region - 04/02/2025

At 0449 hrs 04/02/2025 there was an unplanned outage of South Morang - Dederang No.1 330kV line series capacitor.

The following constraint set(s) invoked at 0505 hrs 04/02/2025
V-SMSC

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

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Refer to market notice 121468

AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
The system normal equations have been revised to remove Gladstone >=1 requirement.

A revision to the constraint equations will be implemented at 1200 hrs on Tuesday 4th February 2025.

The new combinations have now published in a limits advice document on AEMO's website. For more information refer to the new limits advice: https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice

This advice contains all the combinations for Queensland for system normal cases. Additional information has been included in the limit advice to clarify the requirement to disconnect all inverters/turbines under certain system conditions.

The constraint equation in the Q-NIL set of the form below will be modified:

-Q_NIL_STRGTH_xxxx
-Q_NIL_STRGTH_xxxx_I

AEMO Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Ararat to Waubra to Ballarat 220 kV line - VIC region - 02/02/2025

At 2138 hrs 02/02/2025 there was an unplanned outage of Ararat to Waubra to Ballarat 220 kV line.

The following constraint set(s) invoked at 2150 hrs 02/02/2025
V-AR_WB_BA

The following constraint set(s) invoked at 2230 hrs 02/02/2025
V-KIAMAL_SC_220CB

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

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Ararat to Waubra to Ballarat 220 kV line - VIC region - 02/02/2025

At 2138 hrs 02/02/2025 there was an unplanned outage of Ararat to Waubra to Ballarat 220 kV line.

The following constraint set(s) invoked at 2150 hrs 02/02/2025
V-AR_WB_BA

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

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Armidale - Tamworth No. 86 330 kV Line - NSW region - 01/02/2025

A planned outage of Armidale - Tamworth No. 86 330 kV Line in the NSW region was scheduled to be completed at 1030 hrs 01/02/2025

The outage has been completed by 0835 hrs 01/02/2025

Constraint set(s) invoked:
N-ARTW_86
N-DM_SVC
N-TW_SVC


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

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations