A summary of bidding in South Australia over 4 days (including the volatility)
Following up on the elevated prices in South Australia, here's a summary of bidding across four days - Friday 19th June 2026 to Monday 22nd June 2026
rebidding
(Belatedly) noting AER’s consultation on possible updates to the ‘Rebidding and Technical Parameters Guideline’
On 24th March 2026 (i.e. 3 months ago now), the AER published this Consultation paper into possible updates to the AER’s ‘Rebidding and Technical Parameters Guideline’.
Managing bids during the market suspension on 23 March 2026
One feature of a market suspension is the possibility for suspension pricing, which happened in this case. Did it influence energy offers?
AEMC releases July 2024 working paper ‘Addressing the risk of algorithmic collusion’
Today we were alerted that the AEMC had belatedly published this 15-page Staff Working Paper titled ‘Addressing the risk of algorithmic collusion’.
Five (re)bids for URANQ12 on on Tuesday 13th May 2025 – Part 3 of a Case Study
On Tuesday 13th May 2025 we quickly noted a period of volatility that was mainly focused on the NSW region. Here's a third step in understanding contributing factors...
Claims of market manipulation against QLD Gencos (Stanwell Corporation and CS Energy) dismissed … part 3
Guest author, James Prest, expands on what he'd previously published on LinkedIn with this longer review of the QUD19/2021 QLD Class Action.
A long-range trend of changing times for “Gate Closure #2”
A few questions (from several different directions) gave us pause to run this quick query of how 'Gate Closure #2' times (in the rebid process) have changed over time.
A quick first pass through ENERGY bids (for Victorian units) on Tuesday 13th Feb 2024
Five days after Tuesday 13th February 2024 we have a bit of time to take this initial (top-down) look at bidding for ENERGY in the Victorian region on that day ... with 27 Questions/Observations identified!
Policy implications now and for the transition
The third and final part of this series of articles from Greg Williams about opportunity costs in electricity markets - this time narrowing in on policy implications.
Looking back at operations at Kogan Creek over the past 20 days
On Friday 29th September 2023 we look back at Kogan Creek via 'Bids & Offers' in ez2view over 20 days to see what's visible, in terms of any impact of the current Industrial Action
AER releases ‘June 2022 market events report’
Today (Thu 15th Dec 2022) the AER released its 'June 2022: Market events investigation report', which might be widely read.
Case Study of Wednesday 10th August 2022 – Part 1 (Response of Wind Farms)
Walking through some of the responses I can see in 19 of 67 Wind Farm units on Wednesday 10th August 2022 ... when a software glitch delivered extreme contingency FCAS prices across all regions (though they were subsequently revised down).
Trended bidding from BESS discharge (NEM-wide) … highlighting APC and Market Suspension
Someone asked me a question on social media this morning about batteries 'withdrawing capacity' ... here's a view of what's happened using ez2view (and as presented to EUAA).
Highlighting Coopers Gap Wind Farm rebid on Sunday evening 12th June 2022
Will need more time to think why Coopers Gap WF would bid in this way on Sunday evening with 'Actual LOR2' notices at play.
Price volatility in South Australia Thursday evening 30th December 2021
This morning I've taken a quick look at market activity in South Australia on Thursday evening, 30th December 2021.
Two recent improvements (in late November 2021) by AEMO in the dispatch process
A short article (in the midst of GenInsights21 completion) more broadly sharing 2 good news stories from AEMO in the context of the NEMDE dispatch process.
A sneak peak at the increasing volume of bidding at some Large Solar Farms in the NEM
A short article today, to share an image from the upcoming GenInsights21 release, and to pose some questions - about what's been happening with the rise (and fall!) of bid volumes at Large Solar Farms in the NEM.
Perhaps some early changes with Bid Strategy, with Five Minute Settlement
Another interim build of ez2view gives me an excuse to have another look at changes in bidding patterns at selected Wind, Solar and Coal units.
Initial look at the latency of all rebids
Following from some analytical work performed in testing for Five Minute Settlement, here's a view of latency of rebids (all DUIDs, all commodities) in recent months that prompts a number of questions...
A first view of bids under Five Minute Settlement
It was too tempting to take some time today to look back on the first fully 5-minute bids from Friday 1st October (the start of Five Minute Settlement) to see how much has changed.