Two evening price spikes send jitters …
The dispatch price in Queensland spiked to $1,500/MWh at 18:25 and again at 22:40 yesterday evening – triggering jitters in some who fear a return to the volatility of summer 2013.
price volatility
Updated animation of 20th December 2012 – a volatile day in the Queensland Region
An updated animation of 20th December 2012 focused on the Queensland region – a volatile day for that region.
Animation of several hours over the evening of Saturday 12th January 2013 in Queensland
Here’s another animated case study of one more interesting time that occurred through summer 2013 in Queensland – on this occasion the evening of Saturday 12th January 2013.
Wild price gyrations in Victoria (and elsewhere) today following a station trip at Yallourn
An animation of 90 minutes this morning where the price gyrated wildly in response to a trip at Yallourn, and numerous subsequent reactions by market participants and the AEMO.
SA summary for Thursday, compared to the preceding week
Following from a period of elevated prices in South Australia, prices dropped on Thursday. Here’s some reasons why…
7-day South Australian overview (Thu 30 May to Wed 5 June)
Spot Prices in South Australia were elevated over the past 7 days – here are some reasons why.
Prices yo-yo in SA this morning, as installed capacity goes missing
Following yesterday’s warnings about the potential for a tight supply/demand balance in South Australia this week, it was not really a surprise when the SMS alerts from NEM-Watch began buzzing for the 07:20 dispatch interval this morning (NEM time), highlighting that the dispatch price in SA had jumped to $12,199.20/MWh. This has continued through the morning.
Why are we completing this extensive review of what happened over a very volatile summer in QLD – and why, and what the future implications might be?
Why are we investing significant time in completing this review of what was remarkable price volatility in QLD over summer? We’re primarily a software company that develops shrink-wrapped products used by about 100 market participants, spectators and commentators.
Recapping NEM-wide demand for summer 2012-13
A view of how NEM-wide demand trended over summer, with respect to our Best Demand Forecaster in the NEM competition.
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.
Queensland’s turn to sweat today, but NEM-wide demand plummets
A snapshot of a day of contrast – with high demand in Queensland (temperature driven) and extraordinarily low demand in the south.
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.
An illustration of the nature of dynamic wholesale electricity prices in Queensland today
Three images from NEM-Watch highlighting extremes of pricing in the Queensland region of the National Electricity Market today – illustrating the volatility, and hence the opportunities for Demand Side Response.
NEM-wide demand higher still, as NSW regional demand eclipses record
An illustration of the high demand and volatility on Tuesday 1st February.
High temperatures drive NEM-wide demand to 34,400MW
Some snapshots of a day in which NEM-wide demand soared, driven by high temperatures across the middle of Australia.
Concerns about Rising Costs in the Wholesale Spot Market
A listing of some drivers for higher (and, in some cases, lower) prices in the wholesale spot component of the NEM.
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.
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).
NEM-Wide demand soars, and IRPM drops, on a hot spring day
A few snapshots and quick notes about a very hot spring day in the NEM, with demand soaring, IRPM dropping across the market, and prices at VOLL in NSW
Some benefits of curtailability in Australia’s National Electricity Market
A look-back at 11 years of NEM history to reveal the nature and measure of benefits large industrial energy users can gain from curtailability in the NEM