Prices skyrocket across all 4 mainland regions on Wednesday 12th May
Spot prices spiked across mainland regions this evening – firstly at 17:55 (above $1,000/MWh). and then at 18:00 (up towards $15,000/MWh). Here’s a first look.
price volatility
How aggregate production from Wind and Large Solar in NSW dropped last week – one factor contributing to price spikes and Reserve Trader
An unfortunately timed significant slump in output across all Wind and Large Solar plant in NSW was another of the factors contributing to the price volatility seen in NSW last week.
More price volatility in (QLD and) NSW on Wednesday 16th December 2020
Second day in a row the price spikes in the NSW region … higher and longer than yesterday. Low aggregate production from Wind and Large Solar across NSW today was clearly one other factor that contributed.
Batteries vs. peaking plants – a case study from 13 October
UQ’s Andrew Wilson pens a case study on the market events that occured on Tuesday the 13th of October in the QLD region, in which he examines the relative performance of UQ’s 1.1MW behind-the-meter battery during this period of market volatility.
Buckle in folks, Friday afternoon/evening might be a bit bumpy
Published at 12:02, this is a view looking forward to the expected (very high) peak in electricity demand across the NEM this evening.
A brief look back at reactions to negative prices in the 14:30 trading period on Friday 1st March 2019
Yesterday I noted what appeared to be trips of two solar farms – Gannawarra and Karadoc – within a single dispatch interval and coincident with a period of volatile prices. Also yesterday, Dylan McConnell flagged a drop in output at the brown coal plant around the same time, with some questions. With the benefit of access to yesterday’s bids, today I have a look at the 5 power stations (pending a broader review next week by guest author, Allan O’Neil).
Retail Energy, not so easy
It is curious that despite of the findings of the recent ACCC enquiries and the on-going regulatory uncertainty (at both a state and federal level), anyone would be willing to set-up an electricity retailer. New venturers in the energy market…
Not quite summer and volatility returns to Victoria and South Australia
Some volatility with the hot weather on Wednesday 29th November – is this a precursor for summer?
With the closure of Hazelwood looming, hedge contract prices climb skywards
Ominous signs for spot price outcomes through Q2 2016 in Victoria, as hedge contract prices climb prior to the imminent closure of Hazelwood.
The ‘other’ factors driving price volatility in the NEM
One of the more recent developments we’ve observed in the NEM is the downward trend in gas powered generation, raising concerns as to whether there is more pain to come for east coast industrial consumers.
A more forensic look at Queensland Price Volatility on Saturday 14th January 2017
An animated walk through 19 hours of Saturday 14th January 2017 in the Queensland region of the National Electricity Market – a day we dubbed “sizzling Saturday” not least because of extreme price volatility
One example of how price spikes in the physical market flow through to the financial market
Illustrating how the price spike on 14th January flowed through to hedge contract prices.
If I was going to assess Factors Contributing to the “truly remarkable” Q2 2016 prices, here are some starting places I’d look…
A starting list of factors that I’d look further into, if I was sucked into the “rabbit hole” of assessing all of the contributing factors leading to the Remarkable Prices seen in Q2 2016 – and which could continue into the future.
Reviewing Q2 prices – short-term excursion, or more systemic change in pricing patterns?
Some initial analysis about the remarkable pricing outcomes seen across all regions of the NEM through Q2 2016
South Australia hit by two price spikes
The volatility of the NEM was showcased again on Monday as South Australia experienced two major price spikes in the space of an hour. Using NEM-Watch’s play back feature (screenshot below) we were able to relive when the two price spikes hit.
Is the real issue related to 5 minute dispatch and 30 minute settlement?
Some thoughts from another guest author, Greg Denton, about the current rule change proposal “Bidding in Good Faith” being assessed by the AEMC.
Queensland electricity demand hits a high mark on Thursday 5th March 2015
A walk-through a high-demand day in Queensland (especially remarkable because of the effect of solar PV output).
National regulations encourage new entrant retailers
Some thoughts about why we’ve been seeing an increase in the number of authorised electricity retailers competing in the Australian National Electricity Market, from a new guest author – Connor James
Winter evening price spike – like yesteryear (not quite)
Coincident with the release of the RET Review, activity in the spot market provides some reminders…
Wind output drops and volatility rises
After spending a day looking into the future (at prospective generation developments) I noted this reverse correlation between wind and volatility that’s been occurring over the week.