The return of the evening price spikes as the winter demand shape arrives a little early
The distinctive winter demand shape returns – and with it comes the evening peaks in prices (even on a Sunday).
high prices
Price spikes in SA at 23:35 with the switch-in of off-peak hot water
A price spike late at night in South Australia, not long after posting other comments about low surplus generation capacity.
SA prices rise as Surplus Capacity drops to levels not seen since 2004
Spot prices in South Australia have been seen to be higher in the month of April than in the prior months, which is somewhat counter-intuitive. Prices also spiked this evening on a number of occasions above $500/MWh – here’s some of the reasons why.
Animated illustration of Queensland Region volatility on 20th December 2012
Here’s an animated view of how price volatility emerged in the Queensland region of the National Electricity Market emerged on 20th December 2012 – and the range of factors that contributed.
Some factors that contributed to the remarkable volatility in Queensland over the weekend
A starting list of a number of factors that combined to deliver sustained higher wholesale electricity prices in the Queensland region across the weekend of Saturday 12th January and Sunday 13th January 2013.
How extraordinary have Queensland’s recent electricity pricing patterns been?
After watching electricity spot prices in Queensland remain stubbornly high over the weekend, we invested some time today to assess the extent to which these price patterns had ever been seen before – in the 15 years of NEM history.
NEM-Wide demand peaked above 31,000MW on Friday
A record of a hot day that drove NEM-Wide demand to the highest level it has achieved (thus far) this summer. See this in context of historical maximum levels.
Prices see-saw across the (mainland) NEM today
An interesting day in the NEM today, with prices gyrating across a wide spectrum, and across all four mainland regions – on the back of higher demand in Victoria and South Australia due to temperatures there, and supported by transmission issues and other factors.
Prices soar as the south-east sizzles – with summer arriving early
Some quick observations about the price spikes observed yesterday on the back of high temperature-driven demand in Victoria.
A very volatile day in VIC and SA (not particularly due to the Carbon Tax)
Some quick notes today, on day #2 of the Carbon Tax, prompted by some prices that jumped all around the place (not so much due to carbon, though).
Only 709MW of spare generation capacity in NSW at 15:40
A quick note about the tight supply/demand balance in NSW today – by virtue for high demand and constrained interconnector capability.
NEM-wide demand higher still, as NSW regional demand eclipses record
An illustration of the high demand and volatility on Tuesday 1st February.
Price hits the new Market Price Cap in NSW this morning
Some quick notes about a price spike to the (newly raised) Market Price Cap in NSW this morning
Tassie price spike on Sunday
Some quick notes about a price spike this evening in Tasmania.
Background to Winter 2010 in the NEM
Inspired by the price spike experienced this evening, I have spent a little time to put together the background to winters in the NEM.
This will be useful in understanding the context of any other events that occur this winter, and are analysed on WattClarity.
Cold snap brings price spike in NSW
A price spike close to the Market Price Cap in NSW this evening provides an spur to do some quick analysis.
Price spikes in SA and VIC on 21st April
Just after midday today (Wednesday 21st April) South Australia and Victoria experienced some high spot prices. Here’s a quick post to highlight what happened.
VOLL (or MPC) in NSW today as high temperatures stretch supplies
A graphical summary of a day when temperatures soared in NSW, dragging demand higher and (with the assistance of a relative shortage of supplies) also dragging prices to VOLL
Playback of high prices in SA and VIC
Prices in South Australia and Victoria have been high this afternoon, jumping up over $2000 in both states at 3pm NEM-time today.
Suspected Generator Trip forces prices close to MPC in QLD
Some quick notes about a price spike in QLD today.