Some late winter mainland volatility – Monday evening, 24th August 2020
Some SMS alerts notified me of some volatile dispatch intervals this evening in mainland regions. So I took a quick look…
price spike
‘Dunkelflaute’ Down Under
Yesterday evening (Tue 9th June 2020) saw an example of ‘dunkelflaute’ across the NEM. It’s a phenomenon we will see increasingly as the transition progresses, so it’s something we should be seeking to understand, and address, with real world solutions and not rose coloured glasses.
Bushfires under interconnectors through Snowy Mountains cause separation of NSW from VIC region
A quick summary of what’s just happened this afternoon (15:10) with the separation of VIC-to-NSW interconnector due to bushfires that have been plaguing the NEM this summer…
Not-So-Quick review of price spike in South Australian region yesterday (Thu 19th Dec) evening
Took 2-3 times longer than planned (as there were a few different interesting observations that came out) but here is our initial – and perhaps only! – review of what happened in South Australia on Thursday 19th December 2019 (i.e. yesterday).
Price volatility in VIC and SA on Friday 1st March
Some quick notes about the volatility seen in the NEM on Friday 1st March 2019 – a hot day in Victoria and South Australia, the first day of Autumn.
Factors contributing to an unforeseen price spike in NSW at 16:15 on Thursday 31st January 2019
Taking a brief (well, actually longer than intended) look into the various factors that delivered a price spike above $10,000/MWh on Thursday 31st January in NSW – and thinking through the implications for one particular Demand Response client, and for the broader market.
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
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
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 11:30 and oscillating for the afternoon
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?
A sudden series of SA spikes
Tight import limits on the Heywood interconnector and a lull in wind output saw price volatility return to South Australia earlier this week
Overview: Queensland volatility 1-2 Feb 2017
A volatile couple of days in Queensland, with demand response evident
Initial Review: NEM-wide Price Event, Monday 30 Jan 2017
Extremely hot weather in NSW and the NEM’s underappreciated “rail gauge mismatch” contributed to a sharp multi-state price spike during the afternoon peak
Quick Review: $13,800/MWh Queensland spike Mon Jan 30
Quick review of an isolated early morning spike in Queensland
Initial Review: $14,000/MWh Spike in Qld, Fri 27 Jan 2017
A look at last Friday’s short sharp price spike in Queensland and why it led to negative settlement residues on the interconnection with NSW
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.
What happens if (when?) existing wind farms cross to “the Dark Side”?
A quick look at a price spike that occurred Monday evening (4th August) in South Australia
NEM-wide demand steams towards 32,000MW, and prices explode, as heatwave hits Victoria and South Australia
The forecast heatwave arrives in Victoria and drives demand towards what looks like being the highest (so far) this summer, and causing prices to pop.
Even Colongra gets a run as high temperatures stretch local supplies in NSW
High temperatures passing through NSW provided the opportunity for the Colongra gas-fired power station to shake off the cobwebs and have a run for the day.
The first working day of summer sees volatility return in Victoria and South Australia
A snapshot from NEM-Watch capturing the first volatility seen this summer