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.
rebidding
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.
What does ‘next day public’ data show us about Tuesday’s re-start of operations at Victoria Big Battery
A quick additional look at activity Tue 28th Sept 2021 for Victoria Big Battery – as seen in ez2view with the benefit of ‘Next Day Public’ data.
Potential Tripwire #3 When is a load not a load?
A feature of the upcoming EMMS technical specification that distinguishes demand response units from scheduled loads could impact some users of NEM data, if left unmanaged.
Discussion about electricity prices – following the Callide C4 Catastrophe
Discussion in a number of different places (including an AFR article today) prompted me to pull some data together of how (spot and futures) prices have trended through 2021, and how they changed with the Callide C4 problems.
First pass review of bidding behaviour on Tuesday 25th May 2021 in Queensland, after Event 2
This evening I’ve taken a first pass look at how QLD generators bid on Tuesday 25th May 2021, in response to the tight supply/demand balance created by the Callide C4 outage and cascade of events.
‘Too Low for Zero’ as a parable for the AER Issues Paper?
Here’s an attempt to translate the concern underlying the AER Issues Paper into ‘plain English’ via the popular song.
Observing Easter Saturday, a little belatedly
Guest author, Allan O’Neil, invests some time to explore a number of different aspects of Easter Saturday (11th April 2020), each noteworthy in their own right (including low demand, high percentage share renewables, negative prices and dynamic bidding)