Power system operating incident reports
AEMO conducts investigations of 'unusual power system events' within the NEM.
These events are known as "reviewable operating incidents" and are generally not considered as "credible contingency events". As such, these events are not normally taken into account in the operation of the NEM.
The full scope of such events is set out in National Electricity Rules Clause 4.8.15, the guidelines established by the Reliability Panel and the agreed list of Critical Transmission Elements.
AEMO conducts these investigations to assess the adequacy of the provision and response of facilities or services, and the subsequent appropriateness of actions taken to restore or maintain power system security. AEMO then publishes a report on each incident.
Archived reports are available from AEMO's Support Hub.
Power System Incident Reports 2020
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18/06/2020
Single phase trip/reclose of Calvale-Stanwell 8873 and 8874 275kV lines
Date of incident: 26 February 2020
240.4 KB -
12/08/2020
Trip of 5A3 and 5A5 lines
Date of incident: 17 February 2020
289.29 KB -
13/08/2020
Trip of Liddell Unit 1 and 83 line
Date of incident: 7 February 2020
322.31 KB -
01/09/2020
Trip of Munmorah Main 330kV Busbar
Date of incident: 1 February 2020
239.15 KB -
19/11/2020
Final Report - Victoria and South Australia separation event
Date of incident: 31 January 2020
1.78 MB -
17/04/2020
Preliminary Report - Victoria and South Australia Separation Event
Date of incident: 31 January 2020
565.07 KB -
03/07/2020
Trip of Kemps Creek A 330 kV Busbar
Date of incident: 27 January 2020
310.89 KB -
25/09/2020
Trip of Ross - Chalumbin 857 and 858 feeders
Date of incident: 25 Jan 2020
393.03 KB -
18/09/2020
Trip of Lismore – Mullumbimby tee Dunoon 9U6 and 9U7 132 kV lines
Date of incident: 25 January 2020
251.36 KB -
15/07/2020
Torrens Island Power Station A 275 kV West bus
Date of incident: 20 January 2020
401.29 KB -
18/06/2020
Chapel Street Liapootah 2 220kV line and Chapel Street 220kV CB S752 trip
Date of incident: 16 January 2020
255.59 KB -
05/06/2020
Trip and reclose Munmorah - Tuggerah 2M and Munmorah - Sydney West 26 330kV lines
Date of incident: 9 January 2020
242.75 KB -
15/07/2020
Trip of the Vales Point Generator 330 kV and No. 1 Transformer
Date of incident: 6 January 2020
511.18 KB -
25/09/2020
Final Report - New South Wales and Victoria Separation Event
Date of incident: 4 January 2020
1.21 MB -
05/03/2020
Preliminary Report - New South Wales and Victoria Separation Event
Date of incident: 4 January 2020
856.72 KB
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Power System Incident Reports 2019
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Power System Incident Reports 2018
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Power System Incident Reports 2017
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Power System Incident Reports 2016
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Power System Incident Reports 2015
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Power System Incident Reports 2014
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Power System Incident Reports 2013
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Power System Incident Reports 2012
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Power System Incident Reports 2011
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Power System Incident Reports 2010