Four days in the NEM in four minutes
Dan shares a short time-lapse video which demonstrates four days worth of activity in the NEM, highlighting the impact of network congestion in QLD and NSW.
All Posts
Gremlins in the EMMS upgrade to Data Model v5.5, making ‘the Resurrection of Old Coal’ appear on the cards
On Tuesday 29th April 2024 we noted a glitch in some ez2view widgets stemming from changes in the EMMS triggered by the upgrade process for Data Model v5.5.
Major power outage on the Iberian Peninsula on Monday 28th April 2025
On Monday 28th April 2025 there was a large loss of load event encompassing millions of customers across Portugal and Spain. Here's some initial notes.
Do we have enough gas to wait until nuclear comes along?
Tristan Edis of Green Energy Markets discusses the practicalities of the gap that must be filled by the gas sector under the nuclear power timeline proposed by the Federal Opposition.
Reliability Panel comments on AEMO’s Transition Plan for System Security on 23rd April 2025
The Reliability Panel responded to the AEMO’s first iteration of the annual Transition Plan for System Security (TPSS) with comments with this 4-page letter on Wednesday 23rd April 2025.
Games that self-forecasters can* play (Part 1 – An Overview)
I've promised to write this article for some time, but a few recent events (and looming start of FPP) have caused me to publish this now.
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.
AEMO publishes draft ‘Congestion Information Resource Guidelines’ – submissions due 19th May 2025
On Tuesday 15th April 2025, the AEMO published its draft report on 'Congestion Information Resource Guidelines', seeking feedback by Monday 19th May 2025.
AEMO published its HLIA for the ISF Implementation … and seeking input on draft ‘Security Enablement Procedures’
As the next steps in implementing the AEMC's ISF Reforms, the AEMO has published: (a) on 7th April a consultation; and (b) on 17th April a HLIA.
AEMO commenced a consultation on the Constraint Formulation Guidelines
On Monday 7th April, the AEMO commenced a consultation on the Constraint Formulation Guidelines - which touches on three different changes that some of our readers will find of interest.
Guest Authored Posts
Triple C conditions (cold, calm and cloudy) across the NEM last Thursday evening 26th June 2025
Carl Daley examines the underlying conditions and outcomes that occurred last Thursday evening, the 26th of June.
We need more research on storage trading
In this guest post, Greg Williams calls for more research into how storage bidding—particularly auto-rebidding—is reshaping price formation and competition as flexible assets take centre stage in the NEM.
Detailed Analysis
If I were going to perform an objective review of what happened last Thursday 18th and Friday 19th, here’s a couple things I would look into…
A starting list of all the factors I would like to delve into, in order to perform an objective review of what happened last Thursday and Friday in Victoria and South Australia
Analytical Challenge – avoiding Recency Bias
Flagging the ongoing challenge of not extrapolating from recent performance to infer that "things" will always be that way.
Analytical Challenge – determining “what might have otherwise been?”
One of the challenges in analysis is to even be conscious of the need to ascertain "what might have otherwise been".
A collection of some core analytical challenges
A collection of articles speaking to some core analytical challenges. Others are categorised elsewhere – like my prior thoughts on three reasons why forecasting is a mug’s game.
Why are we completing this extensive review of what happened over a very volatile summer in QLD – and why, and what the future implications might be?
Why are we investing significant time in completing this review of what was remarkable price volatility in QLD over summer? We're primarily a software company that develops shrink-wrapped products used by about 100 market...