Over four hours of volatility in the SA region on Friday evening 11th August 2023
Some quick notes about volatility in SA on Friday evening 11th August 2023.
‘Constraint Dashboard’ widget
Case Study of 17:05 on 27th October 2022 … part 2 … (+861MW AggROT – individual units)
In Part 2 of this Case Study, we look at those 15 x Semi-Scheduled units highlighted with large deviations (mostly under-performance) at 17:05 on 27th October 2022 in order to understand more.
Using the (draft of) GSD2022 to investigate those Solar Farms suffering significant curtailment
An article on RenewEconomy this week (about some analysis by analysts at ANU) coincided with our review of sequential drafts of the GSD2022, and prompted this article to have a look at some reported lost production at a number of solar farms across the NEM.
Spot volatility in the NSW region on Monday morning, 12th December 2022
First day back in the NEM after a break and I see the that the ‘N-RVYS_2’ Constraint Set is contributing to morning price volatility in the NSW region again.
Case Study of the ‘N::N_UTRV_2’ constraint equation – Friday 28th October 2022
A detailed look at the ‘N::N_UTRV_2’ constraint equation (focusing specifically on the spike at 17:30 on Friday 28th October 2022), drawing heavily on the newly-released ‘Constraint Dashboard’ widget in ez2view.
Low wind on Friday 4th November 2022
Following a client request on Friday 4th November, here’s a quick look at the low wind conditions occurring on that day.
Quick initial notes about price spike at 17:30 on Friday 28th October 2022
A quick look at a brief price spike in NSW and QLD on Friday evening 28th October – which appears to be related to a Ravine -Yass(2) 330kV line outage.
Sequence of events in Tasmania on Friday 14th October 2022 (initial look)
On Friday 14th October we saw a significant system event in Tasmania – with storms downing power links, leading to large (530MW) loss of load and trip of Basslink. In this article we take a first look at the sequence of events…
Morning volatility in South Australia on Friday 8th July 2022
A quick look at this morning’s volatility in South Australia.
Morning price spike in South Australia on Monday 6th June 2022
A quick look at a price spike at 06:45 on Monday morning 6th June … that has some parallels to yesterday evening.
Quick review of a price spike on Sunday evening 5th June 2022
A short walk through Sunday evening’s ‘out of the blue’ price spike in the South Australian region.
Who gets to run when everyone bids the same? A crash course in disorderly bidding and tie-breaking
Marcelle explores the little-understood concept in NEM dispatch of the tie-break principle, using the new ‘Constraint Dashboard’ widget in ez2view.
Market Volatility (and low IRPM) on Monday evening 16th May 2022 in QLD region
A short article about this evening’s market volatility in the QLD region on Monday 16th May 2022
Transmission outage on ‘Ravine to Yass (2) 330kV line’ still ongoing
The ‘N-RVYS_2’ Constraint Set continues, with delays in the outage compared with expectations last week.