17 October: cool weather for Victoria

Market report for Tuesday, 16 October: 10 negative price intervals see Tas with minus $96.41/MWh as NSW, Vic, SA and Qld rise 11-13pc to $31.36-$34.84/MWh range on higher demand

Ten negative price trading intervals with prices between minus $158.68/MWh and minus $999.68/MWh resulted in Tasmania recording an average of minus $96.41/MWh, with NSW, Victoria, South Australia and Queensland up 11-13 per cent to a range of $31.36-$34.84/MWh. System-wide maximum demand was up 712MW (2.7 per cent) with rises in all regions, led by the 316MW increase in NSW.

Tuesday, 16 October: One LRC omission and one addition for Qld in MT PASA list for week to 16 October

NEMMCO made two changes in the list for low reserve condition (LRC) in the medium term projected assessment of system adequacy (MT PASA) issued at 1314EST on Tuesday, 16 October following one change the previous week.

Tuesday, 16 October: Tas goes negative with 10 trading intervals between minus $158.68/MWh and minus $999.68/MWh

Tasmania recorded negative prices of between minus $158.68/MWh and minus $999.68/MWh in 10 30-minute trading intervals on Tuesday, 16 October. From morning to early afternoon: The negative prices started in the 0900EST interval and continued though until the 1400EST interval, with only one positive price in this period.

Range of negative prices: There were two negative prices between minus $100 and minus $200, two between minus $300 and minus $400, one between minus $400 and minus $500, 1 between minus $600 and minus $700, 1 between minus $800 and minus $900 and three over minus $900 – two at minus $999.67/MWh and one at minus $999.68/MWh.

Average at minus $96.41/MWh: These 10 trading intervals forced Tasmania’s average price for the day down to minus $96.41/MWh.

Highest price of day, too: Tasmania also recorded the day’s highest price for the NEM regions of $69.96/MWh in the 0630EST interval.

Demand up: Maximum demand of 1392MW in the 1930EST interval was up 87MW (6.7 per cent) on Monday.

Reference: National Price for Tasmania for one day, Tuesday 16 October, in Price/Demand section of Erisk Net – Realtime NEM Data.
http://www.erisk.net

Erisk Net, 17/10/2007

Wednesday, 17 October: Tas in about turn: Spike to $8000.16/MWh in morning trading interval tipped after 10 negative price intervals on Tuesda

The NEMMCO predispatch at 6.53 a.m. on Wednesday, 17 October predicted a spike to $8000.16/MWh for the 30-minute trading interval ended 0900EST. Average price of $191.13/MWh expected: This large spike is expected to be enough to push Tasmania’s average price to $191.13/MWh following an average of minus $96.41/MWh on Tuesday when there were 10 negative price intervals with prices ranging from minus $158.68/MWh to $999.68/MWh.

Demand up: Tasmania’s maximum demand is predicted to continue rising, up 72MW (5.2 per cent) to 1464MW following an 87MW rise on Tuesday. Tasmania is the only NEM region expected to register an increase in maximum demand on Wednesday.

Reference: Pool Price for Tasmania in NEMMCO predispatch at 6.53 a.m. on Wednesday in User Defined section of Erisk Net – Realtime NEM Data.
http://www.erisk.net

Market report for Sunday, 14 October: Multiple negative price intervals knock Tas average down 44pc, with NSW, Vic, SA and Qld falling 23-32pc to $10.55-$22.00/MWh range on falling demand

Eleven successive negative price intervals from the start of the trading day in the 0430EST interval knocked Tasmania’s average price down 44 per cent, with NSW, Victoria, South Australia and Queensland falling 23-32 per cent to a range of $10.55-$22.00/MWh.

Market report for week to Saturday, 13 October: Storms, blackouts; Five days of spikes push Qld average price up 134pc, with Vic and Tas rising 1-11pc, SA steady and NSW down 5pc to overall $32.67-$111.53/MWh range on firmer demand

Market report for Friday, 12 October: Spike-free Qld drops 68pc, with Vic, SA and Tas up 5-9pc and NSW down 2pc to $39.57-$41.94/MWh on steady demand

With the effect of storms moderating in the south-east, Queensland had its first spike-free day this week, resulting in average price falling 68 per cent. Average prices rose 5-9 per cent in Victoria, South Australia and Tasmania and fell 2 per cent in NSW to an overall range of $39.57-$41.94/MWh.

Market report for Thursday, 11 October: Lightning in SE Qld corridor, $10,000 energy prices, negative QNI settlement residues cause $3000-plus spikes: negative QNI settlement residues cause $3000-plus spikes: Average prices up 2-20pc to $36.42-$131.84/MWh range on rising demand

With lightning activity continuing in a south-eastern Queensland corridor from Bulli Creek to Calvale, $10,000 overconstrained energy prices and negative settlement residues exceeding the QNI interconnector threshold, Queensland had spikes for the eighth day in a row with a top price exceeding $3000/MWh for the second successive day. Average prices rose 2-20 per cent to a range of $36.42-$131.84/MWh. System-wide maximum demand was up 805MW (3.1 per cent) with rises in all regions except Tasmania.

Thursday, 11 October: Qld spikes with top price over $3000 for second day in row as lightning affects power lines in SE corridor

Queensland recorded a top price of $3405.68/MWh in late afternoon and evening spike intervals on Thursday, 11 October, just below the top price of $3407.42/MWh on Wednesday.

Market report for week to Saturday, 6 October: Qld spikes, Tas negative prices as averages drop 13-42pc to $29.55-$47.68/MWh range on higher demand

 

Average prices dropped 13-42 per cent on the previous week to a range of $29.55-$47.68/MWh. Queensland had spikes on the last three days of the week with the $267.60/MWh in the 30-minute trading interval ended 1530EST Friday being the highest weekly price in the NEM. Tasmania’s average was dragged down by negative prices on Sunday, Tuesday, Thursday and Friday. Queensland had the highest average price and Tasmania the lowest. System-wide maximum demand rose 458MW (1.7 per cent) to 27,388MW, with rises in NSW, Queensland and Tasmania and falls in Victoria and South Australia.

Market report for Sunday, 7 October: Average prices down 2-19pc to $20.07-$50.80/MWh range on firmer demand: Spikes in Qld, negative price in Tas

Average prices dropped 2-19 per cent to a range of $20.07-$50.80/MWh on a day which saw spikes continue in Queensland for the fourth day in a row and a negative price interval in Tasmania. System-wide maximum demand was up 269MW (1.1 per cent) with rises in all regions except Tasmania. Top price of the day was the spike to $205.14/MWh in Queensland for the 30-minute trading interval ended 2030EST. Queensland had the highest average price and Tasmania the lowest.

Market report for Saturday, 6 October: Qld spikes continue with average prices up 28-69pc in Qld and Tas, down 8-15pc in NSW, Vic and SA to $24.64-$57.44/MWh range on higher demand

 

The third successive day of Queensland spikes pushed its average price up 69 per cent, with Tasmania up 28 per cent and NSW, Victoria and South Australia averages down 8-15 per cent on the previous Sunday, the nearest comparable weekend day, to a range of $24.64-$57.44/MWh. System-wide maximum demand was up 421MW (1.8 per cent) to 24,200, with rises in NSW, South Australia and Queensland and falls in Victoria and Tasmania. Top price of the day was a spike to $138.66/MWh in Queensland for the 30-minute trading interval ended 0830EST. Queensland had the highest average price and Tasmania the lowest.

Market report for Friday, 5 October: Qld spikes, Tas negative prices continue as averages jump 52pc in Qld, drop 4-13pc in NSW, Vic, SA and Tas to $28.68-$71.34/MWh range on falling demand

Spikes in Queensland and negative prices in Tasmania for the second day in a row were again the features of a day which saw Queensland average price jump 52 per cent with falls of 4-13 per cent in NSW, Victoria, South Australia and Tasmania to a range of $28.68-$71.34/MWh. System-wide maximum demand was down 606MW (2.3 per cent) to 25,969MW with falls in all regions except Tasmania. Top price of the day was the spike to $267.60/MWh in Queensland for the 30-minute trading interval ended 1530EST. Queensland had the highest average price and Tasmania the lowest.

Market report for week to Saturday, 29 September: Spikes push Qld average price up 9pc, with NSW, Vic SA and Qld down 5-9pc to $40.61-$54.90/MWh range on weaker demand

Spikes on three days with top prices between $153.12/MWh and $1710.58/MWh pushed up Queensland’s average price by 9 per cent while the spike-free regions of NSW, Victoria, South Australia and Tasmania fell 5-9 per cent to an overall range of $40.61-$54.90/MWh.