A chilly autumn morning drives demand higher in Tasmania
Tasmania shivers this morning, driving electricity demand higher
Seasonal Record of Events in the Market
Collections of events that we see happening in the NEM, categorised in terms of the seasons in which they occur.
Morning price spikes in SA with no wind or coal
Augurs to be an interesting day in South Australia today, with two (now three) price spikes already this morning – due in part to no supplies from coal, or from wind.
What’s caused the drop in brown coal production?
Prompted by a reader’s question, we provide some further analysis into which brown coal plants have been declining output in recent times, and why this might be the case.
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.
Macarthur Wind Farm opened today – but the wind did not show up for the opening
The Macarthur Wind Farm opening was officially opened today, but the wind did not make an appearance.
Highest electricity demand for Victoria in four years last Tuesday (12th March) – and 400MW of DSR operates
Following some tweets from the esaa mentioning how the demand in Victoria on Tuesday 12th March was the highest seen for four years, we had a look back through our records on the day.
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.
Millmerran station trip drives prices sky high
At 23:05 on Saturday 9th March AEMO advised that the Millmerran power station units 1 and 2 tripped simultaneously at 22:07 (58 minutes prior) – for reasons still unknown.
Here’s how we saw it unfold at real time.
A late burst to summer in the south drives demand higher
Some high temperatures in Victoria and South Australia drive demand higher and, because of transmission constraints, the IRPM in the Economic Island lower.
Temperatures drive demand, and volatility, in Victoria and South Australia Monday 18th February
The price spiked yesterday (Monday 18th February) in South Australia and Victoria – here’s an overview of what happened.
Scorching Sydney drives demand today into the red zone
A record of the extreme temperatures across NSW today, driving demand in NSW up towards the all-time electricity demand record set 23 months ago.
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.
NEM-wide demand races past 31,500MW today
A record of the highest NEM-wide demand so far during summer 2012-13. A useful reference, for all of those who entered our “Best Demand Forecaster in the NEM” competition this time, and for those who sat on the sidelines.
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.
Demand (and price) remain stubbornly high in Queensland over the weekend
An extra-ordinary weekend in Queensland, where the mercury stays up and so does electricity demand and (as a result, plus with some help from other factors) so does price.
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.
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.
Not even 41 degrees in Sydney today can drive demand close to a new record
The mercury in Sydney topped the 40 degree mark today, but demand did not climb to the heights it achieved when it set the record 2 summers ago.