Market Notices

AEMO ELECTRICITY MARKET NOTICE

In order to maintain the power system in a secure operating state in the VIC region, AEMO has invoked automated constraint set CA_SYDS_588AFB91 from 1755 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;

V-S-MNSP1
VIC1-NSW1


Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

In order to maintain the power system in a secure operating state in the VIC region, AEMO has invoked automated constraint set CA_SYDS_588AF9C5 from 1745 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;

V-S-MNSP1
VIC1-NSW1


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.

NSW
Deniliquin Ap (39+ Deg C): 27th Jan, 28th Jan, 29th Jan, 30th Jan, 31st Jan
Mudgee Ap (39+ Deg C): 28th Jan, 30th Jan, 31st Jan
Yass (39+ Deg C): 28th Jan, 31st Jan

QLD
Dalby Ap (37+ Deg C): 27th Jan, 28th Jan

SA
Adelaide West Terrace (39+ Deg C): 27th Jan, 30th Jan
Clare High School (39+ Deg C): 27th Jan, 30th Jan
Mt Gambier Ap (39+ Deg C): 27th Jan
Port Augusta Ap (39+ Deg C): 27th Jan, 29th Jan, 30th Jan

TAS
Launceston Ti Tree Bend (33+ Deg C): 28th Jan

VIC
Ararat Prison (39+ Deg C): 27th Jan
Melbourne Olympic Park (39+ Deg C): 27th Jan
Mildura Ap (39+ Deg C): 27th Jan, 28th Jan, 29th Jan, 30th Jan, 31st Jan
Mortlake (39+ Deg C): 27th Jan

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

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Tenterfild - Lismore 96L 132kV line - NSW region - 26/01/2026

At 0927 hrs 26/01/2026 there was an unplanned outage of Tenterfild - Lismore 96L 132kV line.

The following constraint set(s) invoked at 0935 hrs 26/01/2026
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

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Finley to Uranquinty 99A - NSW region - 24/01/2026

At 1418 hrs 24/01/2026 there was an unplanned outage of Finley to Uranquinty 99A.

The following constraint set(s) invoked at 1440 hrs 24/01/2026
N-FLUR-99A-C

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

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.

NSW
Deniliquin Ap (39+ Deg C): 24th Jan, 25th Jan, 26th Jan, 27th Jan
Mudgee Ap (39+ Deg C): 25th Jan, 26th Jan
Yass (39+ Deg C): 25th Jan

QLD
Dalby Ap (37+ Deg C): 25th Jan, 26th Jan, 27th Jan

SA
Adelaide West Terrace (39+ Deg C): 24th Jan, 26th Jan, 27th Jan
Clare High School (39+ Deg C): 24th Jan, 25th Jan, 26th Jan, 27th Jan
Mt Gambier Ap (39+ Deg C): 24th Jan, 26th Jan, 27th Jan
Port Augusta Ap (39+ Deg C): 23rd Jan, 24th Jan, 25th Jan, 26th Jan, 27th Jan

VIC
Ararat Prison (39+ Deg C): 24th Jan, 27th Jan
Melbourne Olympic Park (39+ Deg C): 27th Jan
Mildura Ap (39+ Deg C): 24th Jan, 25th Jan, 26th Jan, 27th Jan
Mortlake (39+ Deg C): 24th Jan, 27th Jan

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

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.

NSW
Deniliquin Ap (39+ Deg C): 24th Jan, 25th Jan, 26th Jan
Mudgee Ap (39+ Deg C): 25th Jan, 26th Jan
Yass (39+ Deg C): 25th Jan

QLD
Dalby Ap (37+ Deg C): 26th Jan

SA
Adelaide West Terrace (39+ Deg C): 24th Jan, 26th Jan
Clare High School (39+ Deg C): 24th Jan, 25th Jan, 26th Jan
Mt Gambier Ap (39+ Deg C): 24th Jan, 26th Jan
Port Augusta Ap (39+ Deg C): 23rd Jan, 24th Jan, 25th Jan, 26th Jan

VIC
Ararat Prison (39+ Deg C): 24th Jan
Melbourne Olympic Park (39+ Deg C): 24th Jan
Mildura Ap (39+ Deg C): 24th Jan, 25th Jan, 26th Jan
Mortlake (39+ Deg C): 24th Jan

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

AEMO ELECTRICITY MARKET NOTICE

Following a review of the operation of the Very Fast FCAS market, from 27th Jan 2026 AEMO will increase the cap on dispatch of Very Fast Contingency FCAS in the QLD region from 20 MW to 100 MW, during periods where islanding of the QLD region is considered credible.

No other changes to the dispatch of Very Fast FCAS or FCAS constraint equations will be made on this date.

For more information on the Fast Frequency Response (FFR) initiative, please visit:
https://www.aemo.com.au/initiatives/major-programs/fast-frequency-response

AEMO Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Lismore 892 330 kV CB - NSW region - 21/01/2026

At 1217 hrs 21/01/2026 there was a short notice outage of Lismore 892 330 kV CB.

The following constraint set(s) invoked at 1225 hrs 21/01/2026
N-DLETS_OS

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

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations