Historical Distributions in Spot Prices
Colourful distribution of spot prices – for each year of 11.5 years of NEM history.
Clearly see the trend over time.
Prices see-saw over the full $13,250/MWh price range – but it’s all revised!
A record of how a day of see-sawing prices appeared (in real time) in NEM-Watch
Note that the high prices have since been revised, but the low prices (down to -$1000/MWh) remain, at least for now.
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.
Winter 2010 in the NEM
Various articles about Winter 2010 in the NEM
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.
Escalating Capital Requirements
Some notes (which will be updated later) about capital requirements for the Australian Electricity Supply Industry
My synopsis of Opportunities & Threats for Energy Users
A high-level summary of some concerns of energy users, linked to a (progressively) growing number of more detailed posts that will be added over time.
Concerns of Energy Users
Here’s a growing collection of articles we’re putting together with respect to the concerns of energy users. These articles are informed by interaction with a wide range of large commercial and industrial (C&I) energy users in a variety of different…
Some context for the recent Basslink outage
I noted that the recent Basslink outage made the news today as a result of political point scoring in the Tasmanian parliament. As noted in the news report, the Basslink outage started on Saturday 17th April, and continued through until…
Autumn 2010 in the NEM
Articles on various stand-out events happening in the National Electricity Market in Autumn 2010.
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.
Demand Side Response in NSW on 4th February
On the 4th of February at around 11am energy users in NSW appear to have curtailed their load in response to high prices, resulting in a significant drop in demand. Simultaneously, network conditions and generator rebidding caused the NSW pool price to jump back and forth between extreme prices close to VOLL ($10,000/MWh) and the Market Floor Price (-$1,000/MWh).
Earth Hour 2010 – Impact on Australia’s Electricity Market
Now in its 4th year – Earth Hour has continued to spread across the globe, but participation in Australia appears to have decreased from previous years. In this article we compare reported electricity savings during the past 4 Earth Hour events, and look at the effects of Earth Hour on the NEM in 2010.
AFR says “Emissions have fallen"! Here’s some more data…
Some analysis prompted by a short article in the AFR talking about a reduction in emissions over summer 2009-10 (with the possible implication being that emissions have turned the corner).
Queensland Energy Forum
As was mentioned in a previous post the topic which was most topical was the topic of increasing distribution network charges. The Queensland price increase proposals have not been approved yet, but based on the history of New South Wales, there is a widespread expectation that they will get approved.
Investigation of Negative Prices in Tasmania on 2nd & 3rd February
On the 2nd and 3rd of February this year prices spiked in South Australia and Victoria in the afternoon. Coinciding with these spikes, the Tasmania pool price went negative, close to the Market Floor Price (-$1000/MWh). In this article we take a look at the effects and possible causes of the negative prices.
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
VOLL and Lack Of Reserve 2 in SA and High Prices in VIC
More high temperatures in South Australia and Victoria this afternoon have driven the demand and the spot price high.
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.