Market Notices

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - TAS region - 19/09/2024

At 1340 hrs the Gordon - Chapel St No1 and 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 this non credible contingency event is not known at this stage.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

The Tailem Bend - South East No 1 275 kV line in the South Australian (SA) region is planned to be out of service from 2100 hrs on 20/09/2024 to 0530 hrs on 21/09/2024.

A credible contingency event during this planned outage could cause synchronous separation of the SA region from the rest of the NEM.

During this planned outage:
- Power transfer will be restricted across the VIC - SA interconnector (Heywood interconnector); and
- Post contingent FCAS will be sourced within SA following Separation event.

Refer AEMO Network Outage Schedule (NOS) for further details.

AEMO Operations

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE SA1 Region Wednesday, 18 September 2024

AEMO has declared the following units comprising an Aggregate Dispatch Group as non-conforming under clause 3.8.23 of the National Electricity Rules:

Units: TB2BG1, TB2BL1
Aggregate Dispatch Group: TB2HYB_ADG1
Duration: 18/09/2024 11:20 to 18/09/2024 12:50
Amount: 21 MW
Constraint: NC-S_TB2HYB_ADG1

Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE SA1 Region Tuesday, 17 September 2024

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

Unit: MANNSF2
Duration: 17/09/2024 14:10 to 17/09/2024 15:00
Amount: 23 MW
Constraint: NC-S_MANNSF2

Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Network Augmentation Commissioned - NSW Region - 10/09/2024

At 1750 hrs, the following equipment at Buronga 330 kV substation has been commissioned:

1) Buronga 330 kV A bus.
2) Buronga 330 kV B bus.
3) Buronga No 1 330 kV capacitor.
4) Buronga No 2 330 kV capacitor.
5) Buronga No 7 330/220 kV transformer.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE QLD1 Region Tuesday, 10 September 2024

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

Unit: MPP_1
Duration: 10/09/2024 03:50 to 10/09/2024 04:10
Amount: 39 MW
Constraint: NC-Q_MPP_1

Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE QLD1 Region Monday, 9 September 2024

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

Unit: MPP_2
Duration: 09/09/2024 17:25 to 09/09/2024 17:40
Amount: -32 MW
Constraint: NC-Q_MPP_2

Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE QLD1 Region Monday, 9 September 2024

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

Unit: MPP_1
Duration: 09/09/2024 12:35 to 09/09/2024 13:05
Amount: 29 MW
Constraint: NC-Q_MPP_1

Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - VIC region - 06/09/2024

Refer AEMO Electricity Market Notice 118166

At 2005 hrs the Loy Yang PS No. 4 500 kV bus was returned to service.

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