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.
generator bidding
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.
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.
Prior to the wider release of the GSD2020 … here’s a 10-year trend of bidding behaviour
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…
More on those negative prices – how do contracts affect bidding behaviour?
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.
Beginner’s Guide to how dispatch works in the NEM, and hence how prices are set
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
Here’s two odd examples being used in attempt to justify a claim of why privatisation will lead to higher spot prices
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.
… and what of Generators in Queensland, in particular
A further look at bidding behaviour (this time in Queensland) and the extent to which this is contributing to low prices
Have generators backed carbon out of their bids post 30 June – but prior to the repeal passing?
Have generators already removed the carbon tax from their bids, in July 2014 – and is this the reason why we observed prices plunging on 1st July?