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 contributions to meeting the very high level of demand?
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 January 2025…
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.
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.
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.
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.
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).
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 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.
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.
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.
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.
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.
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 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.
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.
A chart we threw together quickly at Beer O’Clock today (from the imminent release of the GSD2020) was worth sharing more broadly on WattClarity today…
Guest author Allan O’Neil provides this handy explainer on how generators’ contract positions affect their bidding decisions and can make negative spot prices pay off, at least in the short term. Very useful for those readers not actively involved in wholesale trading in helping to understand why some conspiracy theories might not match reality.
Walking through 5 (much simplified) “Dispatch Intervals” to illustrate some starting principles of marginal price based dispatch arrangements, such as used in the National Electricity Market
Reading an article in the Courier Mail on Saturday I was struck by the use of two particularly odd examples to support a case for retention of government ownership of electricity generation.