How bidding at Semi-Scheduled units has adjusted for the moving target of ‘negative LGC’
Following a couple articles about the downwards trend of spot LGC price, we look at how that's fed into 'negative LGC' bid prices for VRE.
generator bidding
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
A quick recap on yesterday evening’s bidding in South Australia with the volatility (Tue 6th Jan 2026)
Yesterday evening we briefly noted 'Spot price volatility in South Australia on Tuesday evening 6th January 2026'. Today we take a quick look at bidding.
Part 2 of a Case Study – looking into evening volatility in NSW on Tuesday 13th May 2025
Yesterday (Tuesday 13th May 2025) we quickly noted a period of volatility that was mainly focused on the NSW region. Here's a second step in understanding contributing factors...
A quick walk through a few volatile evening periods
In this article we take an initial look at bidding across some instances of price volatility from Monday 7th April 2025 to Friday 11th April 2025.
An initial walk through contributions in South Australia on Wednesday 12th February 2025 (i.e. Part 1)
If I had time, we'd explore three separate questions we have about what happened in South Australia on Wednesday 12th February 2025. In this article we take a first pass at one of those questions ... what was the state of play in terms of...
A quick review of Queensland bidding over recent days (incl Wed 22nd Jan 2025)
Whilst we're waiting to see where 'Market Demand' lands for Friday 24th January 2025 (we might report that later), I was curious in terms of supply-side performance of units over the past 4 days in Queensland - including the extreme demand period of Wednesday 22nd...
A (very!) quick look at bidding behaviour (NEM-wide) over recent days
Curiosity drove us to take this initial (and very quick) look at bidding behaviour, NEM-wide, across the past 14 days in relation to recent NEM-wide price volatility.
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.
Why generation offers diverge from variable cost
In the second part of this three part series, Greg Williams explains how fuel cost scarcity, inflexibilities, opportunity costs and other factors affects generator bids/offers.
Questions about electricity bills with closure of Liddell looming
Around eight days till the scheduled closure of Liddell's next-to-close unit (and prompted by an article in the AFR), we take a quick look at how they've been bidding.
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).
Summary view of supply-side contributions in QLD during ‘heatwave week’ – particularly Tue 1st Feb 2022 and Wed 2nd Feb 2022
An initial review of some (wholesale) supply-side factors contributing to the extreme price volatility (and Reserve Trader etc) that occurred in the first week of February 2022 in the QLD region of the NEM.
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.
Discussion at AIE Brisbane on 2nd Dec 2021 – Early insights on Five Minute Settlement
Here's the event details for the discussion scheduled for Thursday 2nd December 2021 about 'Early insights from Five Minute Settlement', thanks to AIE Brisbane.
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.
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.
Three potential tripwires looming in October 2021, for those who are not wary
A short article, flagging three potential tripwires we'd like to ensure NEM participants and other stakeholders are aware of in the lead-up to two significant market changes from October 2021.
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.