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).
winter
The 871-855 constraint returns
A snapshot of an instance of the Queensland regional constraint, which has returned after an absence over the autumn months.
How has the Carbon Tax influenced Hydro Generation levels?
A brief look at the significant increase in output from hydro plant coincident with (and slightly preceding) the introduction of the Carbon Tax
One week into the Carbon Tax – how have emissions changed?
Now that we’re through the first week of Australia’s new Carbon Tax, we thought it would be of interest to have a look at whether there has been any significant change in dispatch patterns across the NEM as a result….
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).
First day under the carbon tax – how have spot prices changed?
It’s the first day under the new Carbon Tax regime, so worthwhile to have a quick look at early indications of how spot prices have changed in the NEM.
Winter 2012 in the NEM
An assortment of articles covering events happening during Winter 2012
What happened to demand, this winter?
A brief summary of NEM-wide demand this winter
Winter 2011 in the NEM
Miscellaneous articles about what we observe during Winter 2011
First price spike of Winter 2011
Some quick notes, and images, of a price spike in TAS this morning.
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.
What was the peak NEM-Wide Demand this Winter?
A quick overview of how the daily peak NEM-wide demand trended over winter 2009, in relation to our forecasting competition.
Highest (real) NEM-Wide Demand this winter – on Thursday 11th June 2009
Some preliminary analysis of what happened on Thursday 11th June 2009 – when the NEM experienced its highest NEM-wide demand this winter.
A brief look at peak NEM-Wide Demand over recent winters
This weekend, we have prepared this analysis of the entries we received for our “Peak Demand Forecaster” competition for winter 2009.
In conjunction with this analysis, we thought it would be of interest to also incorporate this chart (generated from a BETA version of the NEM-Review v6 software package) to highlight how the peak NEM-Wide demand unfolded over the previous winters…
Price cap lifted, and Tassie price spikes again
We reported previously that a price cap was invoked in Tasmania on Tuesday 16th June because the Cumulative Price Threshold was reached. In official terminology, this was an Administered Price Period (APP). At 04:00AM this morning, NEMMCO released a market notice advising the market that the APP had been lifted…
Tassie hits the Cumulative Price Threshold
For only the third occasion in the 10 1/2 years that the NEM has been operational, the Cumulative Price Threshold (CPT) has been reached. Yesterday evening, the CPT was reached in the Tasmanian region.
A review of recent winters in the NEM
For those who weren’t aware, Winter 2009 has seen us offer our “Who’s the Best Demand Forecaster in the NEM” challenge – as a chance for the market to redeem itself, following what happened in summer 2008-09 (when the market surprised us all).
Win an Espresso Coffee Machine as the Best Demand Forecaster for Winter 2009
The “Who’s the Best Demand Forecaster in the NEM?” challenge for winter 2009. Tell us the peak demand for this winter by 9AM Monday 29th June, and win your choice of espresso machine.
Prices Surge in QLD and NSW as Demand Climbs
We noted yesterday (Wednesday 10th June) that NEM-wide demand climbed past 32,000MW for the first time this winter.
The following evening saw demand climb to similar levels (a peak of 32,054MW at 18:20 – so 35MW higher than the previous night). However the situation on Thursday night was different in two key ways…
Winter 2009
Miscellaneous articles on activity in the NEM during winter 2009.