NEM Reports

 

Market Event Reports

High FCAS Prices in Tasmania 31 December 2009
Scheduling Error Report: Middle Ridge -Tangkam 731 Line Outage 19 & 20 November 2009
High Prices Queensland and New South Wales - Negative Prices Victoria, South Australia and Tasmania - 3 November 2009
High Energy and FCAS Prices in Tasmania - 30 October 2009
Constraint Action: Moorabool Sydenham No 2 500kV Line Outage 11 September 2009
Dispatch Anomaly : 2 June 2009
Dispatch Anomaly : 5 May 2009
Dispatch Anomaly : 7 to 9 April 2009
Scheduling Error Report : Gordon Power Station 26 February 2009
High Temperatures and Bushfires 7 and 8 February 2009
Record Demand in South Australia and Victoria 28-31 January 2009

 

Archived reports are available from AEMO’s Information Centre.

 

Power System Operations Event Reports

Progress on Recommendations Arising from Investigations of Major Power System Events in January and February 2009
Multiple Generator Disconnection and Under Frequency Load Shedding Thursday 2nd July 2009

 

 

Operating Incident Reports

2010

Trip of the Snuggery – Blanche and Snuggery – South East / Mayurra 132 kV Lines on 12 May 2010
Collinsville Units 1, 2 & 3 Trip on 5 May 2010
Farrell "A" 220kV Bus Trip on 29 April 2010
T55 Turkinje 132KV No 2 Bus Trip 16 April 2010
Trip of Penola West No. 1 and No. 2 132/33 kV transformers on 15 April 2010
Simultaneous Trip of Hazelwood to Rowville No.1 and No.2 Transmission Lines on 27 February 2010
Multiple Contingencies In North Queensland On 16th And 17th February 2010
Trip of 7153 Lilyvale – Clermont and 7154 Clermont - Barcaldine 132kV lines on 14 February 2010
Trip of Mackay 'C' 132 kV Busbar on 12 February 2010
Trip of Playford Power Station East 132kV Bus on 27th January 2010
Tangkam 110 kV No.1 Busbar Trip on the 27 January 2010
Trip of 7139 and 7284 132kV feeders in Queensland - 25 January 2010
Trip of Torrens Island B1 and B2 Generating Units on 21 January 2010

2009
Trip of Mackay 'B' 132 kV Busbar on 15 December 2009
Trip of No.1 220kV Busbar at South Morang Terminal Station on 12th December 2009
Bushfires in the NSW region - 28 Nov 2009
Power System Security Issues in South Australia on 27 November 2009
Trip of No. 4 Fishermans Bend 220 kV busbar on 26 November 2009
Trip of 132kV East Busbar at Playford Power Station Switchyard on 22 and 23 November 2009
Alan Sherriff 132 kV No.1 Busbar Trip on the 21 November 2009
Trip of multiple Transmission Lines in the vicinity of Braemar 275 kV Substation - 13 November 2009
Trip of 8811 Calvale - Tarong 275kV line, Tarong Unit 2 and Columboola 132kV CB 73562 on 5 November 2009
Trip of Sydney East B1 132kV Bus on 20 October 2009
Trevallyn Power Station Trip - 19 Oct 2009
Trip of Townsville South 132 kV Busbar on 13 October 2009
Braemar Voltage Exceeding Satisfactory Limit - 09 October 2009
Trip of No.1 Keilor Terminal Station 220kV Busbar on 8th October 2009
Insecure Operation of the Power System in Victoria, 6th October 2009
Strathmore to Ross 879 & 880 275kV line declared credible
Simultaneous trip of AETV CCGT and OCGT units on 30 September, 2009
Sydney East A2 132kV Bus Trip on 27 September 2009
Trip of Gladstone 275 KV Busbar on 23 September 2009
Insecure Operation Of The Power System In Victoria, 2nd September 2009
Mullumbimby 132 kV Busbar Trip on the 27 August 2009
Insecure System during Outage of South East SVCs on 26 August 2009
Trip of Farrell-Queenstown-Rosebery 110 kV line and Farrell-John Butters 220 kV line on 25 August 2009
Trip of Coffs Harbour 132 kV busbar on 24 August 2009
Unplanned Outage at Darlington Point 330kV Substation in New South Wales on 24th August 2009
Trip of Woree 132 kV No.3 Busbar on 16 August 2009
Trip of Braemar Units 1 and 2 on 28 July 2009
Loss of Colongra Power Station on 28 July 2009
Trip of No.4 Fishermans Bend 220kV bus - 01 August 2009
Loss of Substations Cooroy, Sunrise Hills, Noosaville, and Gympie – 23 July 2009
Loss of Callide ‘C’ unit 4 and Tarong unit 2 in Queensland on 16 July 2009
Tungatinah Power Station Trip – 10 July and 18 August 2009
Multiple Generator Disconnection and Under Frequency Load Shedding Event - 02 July 2009
Load shedding in Victoria and system separation between Victoria and New South Wales on 8 February 2009
Extreme Weather Conditions and Bush Fires in the Victoria Region on 7 February 2009
Unplanned Outages of South Morang to Keilor and South Morang to Sydenham 500kV Transmission Lines in Victoria Region on 30 January 2009
Actual Lack of Reserve (LOR3) in Victoria and South Australia Regions on 29-30 January 2009
Black System Condition in North Queensland on 22 January 2009

 

Archived reports are available from AEMO’s Information Centre.

 

Pricing Event Reports

AEMO reports on electricity market outcomes for events with a regional reference price exceeding $300/MWh in a 30 minute trading interval.  These reports are brief and posted within 4 business days of the event.

August 2010
July 2010
June 2010
May 2010
April 2010
March 2010
February 2010
January 2010
December 2009
November 2009
October 2009
September 2009
 

Archived reports are available from AEMO’s Information Centre.

 

Price Revision Reports

AEMO has established procedures to identify Dispatch Intervals that have been affected by manifestly incorrect inputs to the Market Dispatch Engine (NEMDE). National Electricity Rule 3.9.2B(g) requires AEMO to publish a report for each instance where the procedures lead to dispatch interval prices being replaced. This Rule came into effect from 1 June 2006.

For further information contact AEMO’s Information Centre.

 

Reports on Directions

The introduction of the Direction Review changes to the National Electricity Rules, on 9 December 2002, require AEMO, pursuant to clause 3.13.6A, to publish reports providing background information related to directions issued to Registered Participants.

For information regarding Reports on Directions please contact John Fisher, Market Operations Performance.

 QLD : 21 Mar 2010
   QLD : 17 Jan 2010
 NSW : 20 Nov 2009
   SA : 27 Nov 2009
 TAS : 31 Dec 2009
   QLD : 28 Nov 2009
 QLD : 04 Oct 2009
   SA : 17 & 18 Jun 2009
 SA : 30 & 31 Jan 2009
   VIC : 30 Jan 2009
 QLD : 22 & 23 Jan 2009
   NSW & VIC : 11 to 14 Nov 2008

 

Archived reports are available from AEMO’s Information Centre.