MARKET EVENT REPORTS
- High Prices Queensland and New South Wales - Negative Prices Victoria, South Australia and Tasmania - 3 November 2009
- Scheduling Error Report: Middle Ridge -Tangkam 731 Line Outage 19 & 20 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
- High Temperatures and Bushfires 7 and 8 February 2009
- Record Demand in South Australia and Victoria 28-31 January 2009
- Scheduling Error Report : Gordon Power Station 26 February 2009
- Negative Energy Prices in South Australian Region from September to October 2008
- High Energy Prices in New South Wales and Queensland 31 October 2008
- High Energy Prices in the Queensland Region : 7 February 2008
POWER SYSTEM OPERATIONS EVENT REPORTS
OPERATING INCIDENT REPORTS
- Alan Sherriff 132 kV No.1 Busbar Trip on the 21 November 2009
- Trip of 8811 Calvale - Tarong 275kV line, Tarong Unit 2 and Columboola 132kV CB 73562 on 5 November 2009
- Trip of No.1 Keilor Terminal Station 220kV Busbar on 8th October 2009
- Trip of Sydney East B1 132kV Bus on 20 October 2009
- Braemar Voltage Exceeding Satisfactory Limit - 09 October 2009
- Strathmore to Ross 879 & 880 275kV line declared credible
- Simultaneous trip of AETV CCGT and OCGT units on 30 September, 2009
- Trevallyn Power Station Trip - 19 Oct 2009
- Insecure Operation of the Power System in Victoria, 6th October 2009
- Sydney East A2 132kV Bus Trip on 27 September 2009
- Trip of Gladstone 275 KV Busbar on 23 September 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
- Unplanned Outage at Darlington Point 330kV Substation in New South Wales on 24th August 2009
- Insecure Operation Of The Power System In Victoria, 2nd September 2009
- Trip of Coffs Harbour 132 kV busbar on 24 August 2009
- Mullumbimby 132 kV Busbar Trip on the 27 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
- Multiple contingency event in South Australia region - 30 June 2009
- Tripping of 220kV No.1 Busbar at Jeeralang Terminal Station 29th June 2009
- Insecure operation of the Cultana – Whyalla Terminal 132 kV Line in South Australia on 17 and 18 June 2009
- Operation of West Coast Power System in Tasmania on 13 June 2009
- Violation of Constraint Equation S_HL2WF_CONF on 12 June 2009
- Snuggery 132/33 kV Transformer and 33 kV Bus Section Trip – 09 June 2009
- Insecure System Condition During the New Norfolk to Chapel Street 110kV Line Outage on 1st June 2009
- Snuggery 132kV Turbine Bus Trip - 12 May 2009
- Insecure Operation of No. 2 and 3 Transformers at Burnie Substation in Tasmania on 29 April 2009
- Trip of T48 Tully 132kV No. 2 Busbar on 22 April 2009
- Trip of Morwell terminal station busbar on 05 April 2009
- Multiple Contingency: Loss of Dederang-Wodonga and Wodonga-Jindera 330kV Transmission lines on 3 April 2009
- Mt Piper Unit 2 and 5A3 Trip - 02 April 2009
- Armidale No 3 330kV Bus Section trip on 18 March 2009
- Multiple Contingency: Loss of Sheffield-Burnie and Emu Bay-Ulverstone 110kV Transmission Lines and Sheffield 220/110kV T1 Transformer - 14 March 2009
- Multiple Contingency: Loss of Smithton - Burnie, Burnie - Port Latta and Smithton - Bluff Point - Studland Bay 110 kV Transmission lines 14 March 2009
- Simultaneous loss of both Marulan to Mount Piper 330kV lines - 14 March 2009
- Multiple Trip of Woree to Chalumbin 275 kV lines (876 & 877) resulting in the loss of supply to Far North Queensland- 8 March 2009
- Coincident tripping of Hazelwood to Loy Yang No.1 500kV line and the trip of Ballarat to Waubra 220kV line on 4 March 2009
- Violation of the secure operating state for the network in the Cultana system - 11 February 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
- Actual Lack of Reserve (LOR3) in Victoria and South Australia Regions on 29-30 January 2009
- Unplanned Outages of South Morang to Keilor and South Morang to Sydenham 500kV Transmission Lines in Victoria Region on 30 January 2009
- Trip of Jeeralang No1 220kV bus in Victoria - 29 January 2009
- Black System Condition in North Queensland - 22 January 2009
- Trip of Eildon to Mount Beauty No 1 and 2 Lines in Victoria - 22 January 2009
- Multiple outages in the vicinity of Tarong 275 kV substation - 29 December 2008
- Non-credible contingency event in NSW region – Trip of 330 kV generator busbar at Bayswater and Bayswater to Mount Piper (73) transmission line on 8 January 2009
- Event 93 Eraring-Newcastle 330kV line trip and the trip of Hydro Aluminium No.1 Potline - 29 December 2008
- Trip and reclose of Hadspen to Palmerston No.1 220kV line and the trip of a Rio Tinto potline in Tasmania - 20 December 2008
- Coincident trip of 876 and 877 Chalumbin to Woree - 08 December 2008
- 220 kV bus bar trip at Jeeralang Terminal Station - 13 November 2008
- Trip of 7134 and 7135 feeders in Queensland - 27 November 2008
- Jeeralang B Multiple Unit Trip - 12 November 2008
- Strathmore SVC and Strathmore to Ross 275 kV (879) Feeder Trip - 11 November 2008
- Revision of the constraint equation N>>N-NIL__E on 31st Oct 2008
- Morphett Vale East Fault - 16 October 2008
- Tarong and Tarong North Power Station Generating Units Events - 2 October 2008
- Trip of High Voltage Transmission Lines & Generation System Equipments Connected to Tarong Substation - 20 September 2008
- Recall of the Murraylink Planned Outage - 17 September 2008
- Gladstone 275 kV Busbar Trip - 03 September 2008
- South Pine 275 kV Busbar Trip - 23 August 2008
- Hallet 275 kV Busbar Trip 26 July 2008
- Unplanned Outages of Hazelwood to Loy Yang No.3 500kV line on 23 July 2008
- Reclassification of Farrell-Sheffield 1 & 2 Lines as a Credible Contingency 17th July 2008
- Multiple Contingency Event in Victoria Region - Trip of Pt Henry and Anglesea Power Station - 4 July 2008
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.
- March 2010
- February 2010
- January 2010
- December 2009
- November 2009
- October 2009
- September 2009
- August 2009
- July 2009
- June 2009
- May 2009
- April 2009
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.
- Independent Expert Report for Directions in Queensland and Victoria
- Compensation for Directions on 11 - 14 November 2008 : Independent Expert Report
| QLD : 28 Nov 2009
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| QLD : 04 Oct 2009
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SA : 17 & 18 Jun 2009
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| SA : 30 & 31 Jan 2009
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VIC : 30 Jan 2009
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| QLD : 22 & 23 Jan 2009
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NSW & VIC : 11 to 14 Nov 2008
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Archived reports are available from AEMO’s Information Centre.
