NEM Scheduled Demand tops 33,000MW and prices spike in the south on Tuesday 22nd January
Some snapshots from NEMwatch recording a day where NEM-wide demand breached 33,000MW and prices spiked above $1000/MWh in VIC and SA
South Australia
First scorching summer day for the year and the sky rocketing price of electricity.
The first day of scorching summer temperatures for the year has been matched with elevated electricity prices in New South Wales, Victoria and South Australia for most of the day. Queensland and Tasmania experienced...
A potentially extreme temperature forecast for Adelaide and Melbourne next week…
Following AEMO's warnings issued yesterday about possible extreme heat next week in Adelaide, Melbourne and Sydney, I take more of a look at what might transpire and compare it to historical correlations between cities.
Dispatch Price spikes above $12,000/MWh in VIC and SA today
Two quick snapshots of a high priced day in Victoria and South Australia - with the price jumping above $12,000/MWh at 15:50
Scheduled Demand in South Australia drops to 536MW, an all-time* record minimum in the afternoon of Sunday 21st October 2018
Based on a tip from a savvy WattClarity reader, we have a quick look at what turned out to be the lowest-ever (normal) instance of Scheduled Demand on a dispatch target basis in the...
A case study in Active Management at a Semi-Scheduled plant – Tuesday 24th July 2018 at Lake Bonney 2 Wind Farm
A detailed look at two specific trading periods in the day (Tuesday 24th July 2018) that saw negative dispatch prices occur at the start of trading periods - hence provided a case study for...
Further analysis of the (very rare) double-islanding events of Saturday 25th August 2018
The multi-region islanding event on Saturday 25th August was a very rare event - perhaps the only one's that occurred in the history of the NEM. It has generated plenty of questions - and...
Taking a look at Saturday’s Islanding Event through 4 second SCADA data
Following on from Saturday's islanding event, we use our current interest in AEMO's 4-second SCADA data to prove a little more...
Both QLD and SA islanded from the rest of the NEM on Saturday 25th August 2018
Both the QNI and the Heywood interconnectors tripped around the same time on Saturday 25th August 2018 (not apparent at this time which one was first, and why), leading to both QLD and SA...
Confirmation of yesterday’s supposition that some wind farms are blinking in the face of negative prices
A brief follow on from yesterday's post, with the advantage of being able to review yesterday's bids (and rebids) today.
The “Wind Correlation Penalty” bites in South Australia, and some wind farmers appear to blink
The past week, with wind farm output blowing gangbusters in South Australia (coupled with low demand and System Strength requirements) we seen the "Wind Correlation Penalty" start to bite, with some reactions also beginning...
High SA Prices on Monday 9 July–Business as Usual?
One of our guest authors, Allan O'Neil, takes a closer look at what happened in the South Australian region of the NEM on Monday 9th July 2018
Monday 9th July sees yo-yo prices in South Australia
Some brief analysis of today's price volatility seen in the South Australian region of the NEM
Reviewing the pattern of spot prices for Q2 2018 suggests that we’re far from out of the woods, yet
Returning to the theme of analysis of Q2 prices (completed in 2017 and 2016 due to Q2 historically being an uneventful period) we see that prices have backed off from the "off the charts"...
Electricity demand stopped declining after 2014 (on a NEM-wide, Annual Average basis)
A comment made by TransGrid at the Energy Networks 2018 conference today jolted me to update my (somewhat) outdated paradigm of declining demand.
AEMO issues LOR2 warning for South Australia for next Thursday, 31st May
Yesterday (Thu 24th May) AEMO issued a Low Reserve Condition notice (at LOR2 level) for South Australia next Thursday 31st May. We take a quick look....
An updated look at daily curtailment of aggregate wind farm output across South Australia
This morning over on Twitter, I was pulled into a discussion that had started with respect to volume of wind energy curtailed in South Australia: The genesis of this twitter conversation was the...
A timely reminder of the need for *much* more diversity in wind harvest patterns
Alerted by our NEMwatch dashboard, I delve into the data and see a scary degree of correlation between the (very low) output of wind farms in south-east South Australia, and (similarly low) output from...
Network outage, and low wind, combine to drive spot price volatility in the SA region on Thursday 26th April
An unexpected network outage in the south-east of South Australia restricts supplies from Victoria at a time of low wind supply in South Australia and results in the dispatch price spiking to $14,200/MWh from...
Victorian demand rises above 9,000MW – which (in combination with other factors) leads to a volatile day in the southern regions
On a day when high temperatures drove demand in Victoria above 9,000MW (and NEM-wide demand above 30,000MW) we saw some price volatility - with prices in VIC and SA up around $14,000/MWh