New all-time record Wind Output across the NEM last night (5,430MW at 23:55 on Tuesday 13th April 2021)
David Osmond’s question on Twitter prompted me to have a look at large wind production overnight.
2021
A quick review of the price spike in QLD at 14:35 on Friday 9th April 2021
Reminded by today’s spikes, here’s a quick look at a similar price spike that occurred yesterday (14:35 on Friday 9th April 2021 in the QLD region).
Several QLD price spikes on Saturday 10th April 2021
Three price spikes in the QLD region on Saturday 10th April 2021 help to remind us that how increasingly dependent we are on various machinations of the weather (including, on these occasions, cloud cover and solar output).
The ‘Virtual Storage Product’ as a game-changing energy deal
Caroline Wykamp and Hydro Tasmania’s wholesale team discuss the new ‘virtual storage’ electricity swap contract that they have recently brokered with Renewable Energy Hub.
Big Batteries – big issues!
Guest author, Carl Daley, investigates why big batteries weren’t able to fully capitalise on extreme spot prices in SA on Friday 12th March.
Ranking solar farm FCAS costs in the NEM in 2020
Following recent articles on spot market revenue earned by solar farms in the NEM in 2020, Marcelle takes a look at their FCAS costs.
Will your 10 out of 10 baseline be eligible?
A threshold for accuracy and threshold for bias has been set to evaluate whether a load’s baseline methodology is acceptable for the Wholesale Demand Response mechanism. Just prior to the publication of the Wholesale Demand Response Guidelines (final) the draft…
Solar Returns – ain’t what they used to be?
Guest author on WattClarity (but co-author of the Generator Statistical Digest 2020) uses the GSD2020 and numbers for preceding years to look at how some of the older solar farms are seeing some changes in performance metrics.
The ‘GSD2020 Data Extract’ is now available
Following a number of requests from our clients, we are pleased to note that a GSD2020 Data Extract is now available.
Large-scale solar farm revenue in 2020 part 2 – considering LGCs
Marcelle extends last week’s comparison of solar farm energy spot market revenue in 2020 by adding in an estimate of the LGC (green certificate) revenue.
Some of the early references and feedback we’ve received about the GSD2020
Valued team member, Daniel Lee, reviews some of the early references to, and compliments for, the Generator Statistical Digest 2020 – which was released about 7 weeks ago.
Piecing together what happened on Sunday 24th January 2021 with the ‘Q>>NIL_CLWU_RGLC’ constraint equation (Part 3)
It’s taken a while to find the time – but today I’m posting this next analytical piece (Part 3) that seeks to understand what happened on Sunday 24th January 2021 with the NEM-wide SCADA Failure, which contributed to the price spike that occurred in QLD by virtue of what it did to the ‘Q>>NIL_CLWU_RGLC’ constraint equation.
AEMO publishes Preliminary Incident Report about incident on Friday 12th March in South Australia
A short article this afternoon to link through to the Preliminary Report published by the AEMO, looking into what happened in South Australia last Friday (12th March 2021).
A Comparison of Large-Scale Solar Farm Revenue in 2020
Which solar farms performed best in 2020? Marcelle compares spot revenue performance across the NEM.
Down 55% – but not out
Over 2,000 MW – or around 55% – of South Australia’s firm supply capacity was unavailable last Friday evening (March 12, 2021), along with virtually all of its large-scale renewable supply (a further 1,800 MW or so) but the lights…
Preliminary information on loss of SCADA data – for Case Study 24th January 2021 in Queensland
Two months ago prices spiked in QLD on a Sunday afternoon when AEMO lost SCADA data feed. One month ago AEMO published a preliminary report. In the background we have been taking a look…
How my power company is misleading me with every bill I get, and what this means for other consumers
After reviewing a monthly electricity bill for 2021, Murray Hogarth of Wattwatchers discusses issues arising from ‘smart meters’ and how a lack of accurate data for electricity consumption may be misleading many consumers.
Another QLD dispatch price spike as the sun sets (today on Sun 14th March 2021)
In what’s become a fairly regular occurrence the past couple months, the price spiked in QLD for a single dispatch interval as the sun was setting.
Repair work on Heywood continues to affect South Australian region
A different type of market notice today (speaking of potential curtailment of embedded generation in South Australia) points to the future … accelerated by Heywood repairs in this instance.
$15,000/MWh in South Australia on Friday 12th March 2021 … part 3 (quick thought to the future)
A shorter article – thinking more about the future, prompted by one of the factors that contributed to the price volatility seen in South Australia on Friday 12th March 2021