Market Notices

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.

Update - Lightning vulnerable lines in Tas region

Refer to AEMO Electricity Market Notice 141036

At 1357hrs 11/04/2026 the Farrell -Tribute 220 kV line and Farrell - John Butters 220kV Line tripped.

The cause of the trip was identified as due to lightning.
In accordance with SO_OP_3715, AEMO now considers the Farrell -Tribute 220 kV line and the Farrell - John Butters 220kV line to be vulnerable with a category of probable due to lightning.

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

AEMO ELECTRICITY MARKET NOTICE.

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

At 1357 hrs the Farrell -Tribute 220 kV line, Farrell - John Butters 220kV Lines and Farrell - Mackintosh 110kV Line tripped.

AEMO did not instruct load shedding.

AEMO has not been advised of any disconnection of bulk electrical load.

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


Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE QLD1 Region Saturday, 11 April 2026

AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:

Unit: MPP_2
Duration: 11/04/2026 12:05 to 11/04/2026 12:15
Amount: -15 MW
Constraint: NC-Q_MPP_2

Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - TAS region - 10/04/2026

At 1646 hrs the Farrell - Reece No.1 220 kV and Farrell - Reece No.2 220 kV lines tripped.

AEMO did not instruct load shedding.

AEMO has not been advised of any disconnection of bulk electrical load.

The cause of the trip was identified as due to lightning.

In accordance with SO_OP_3715, the Farrell - Reece No.1 and No.2 220 kV lines are considered vulnerable with a category of probable due to lightning.

At the time of the trip, Farrell - Reece No.1 220 kV and Farrell - Reece No.2 220 kV lines were not reclassified 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 from 16:50 hrs until further notice.

Refer market notice 141010


Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Update - refer market notice 140994

AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: RYANCWF1
Duration: 1035 HRS 10/04/2026 to 1040 HRS 10/04/2026
Amount: 139 MW
Constraint: NC-V_RYANCWF1

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Update - Refer market notice 140993

AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: GPWFEST2
Duration: 1035 HRS 10/04/2026 to 1040 HRS 10/04/2026
Amount: 237 MW
Constraint: NC-V_GPWFEST2

Manager NEM Real Time Operations