Market Notices

AEMO ELECTRICITY MARKET NOTICE

AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the TAS region for the following period:

[1.] From 0730 hrs 05/05/2026 to 0800 hrs 05/05/2026.
The forecast capacity reserve requirement is 577 MW.
The minimum capacity reserve available is 561 MW.

AEMO Operations

AEMO ELECTRICITY MARKET NOTICE

The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 144006 is cancelled at 0155 hrs 28/04/2026.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following Period:


[1.] From 1800 hrs 28/04/2026 to 2030 hrs 28/04/2026.
The forecast capacity reserve requirement is 647 MW.
The minimum capacity reserve available is 622 MW.


Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Cancellation of ActualMinimum System Load (MSL) MSL1 event in the SA Region on 18/04/2026.

Cancellation - ActualMSL1- SA Region at 1405 hrs 18/04/2026.

Refer to Market Notice 141138 for MSL1.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE
Actual Minimum System Load MSL1 condition in the SA Region on 18/04/2026

AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the SA on 18/04/2026.

The advisory MSL thresholds are:
- MSL1: 54 MW
- MSL2: -97 MW
- MSL3: -448 MW

The demand is below the MSL1 threshold.

Demand refers to Operational Demand that excludes contribution from Significant Non-Scheduled Generation: see definitions at https://aemo.com.au/energy-systems/electricity/national-electricity-market-nem/data-nem/operational-demand-data .

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - VIC region - 15/04/2026

At 1506 hrs the JLysaght - Tyabb 1 220kV Line and the JLysaght - Tyabb 2 220kV Line tripped.

AEMO did not instruct load shedding.

AEMO has been advised of disconnection of 16 MWs of bulk electrical load.

The cause of this non credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.

AEMO will not reclassify this event as a credible contingency event.


Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - TAS region - 11/04/2026

Refer AEMO Electricity Market Notice 141053

At 1357 hrs 11/04/2026 the Farrell -Tribute 220 kV line, Farrell - John Butters 220kV Line and the Farrell - Mackintosh 110kV Line tripped. These lines have been returned to service.

The cause of the trip was identified as due to lightning

There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.

AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible.

Region: TAS1

Lines: Farrell -Tribute 220 kV line, Farrell - John Butters 220kV Line and the Farrell - Mackintosh 110kV lines

Cancellation time: 13/04/2026 20:25

Constraint set(s) revoked: T-JB_MC_TI_250, F-T-JB_MC_TI_N-2

The following interconnector(s) are on the left hand side: T-V-MNSP1

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 141048 is cancelled at 1340 hrs 12/04/2026.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following Period:


[1.] From 0130 hrs 14/04/2026 to 0200 hrs 14/04/2026.
The forecast capacity reserve requirement is 406 MW.
The minimum capacity reserve available is 258 MW.


Manager NEM Real Time Operations