From the ‘Operating in the NEM’ session on day 1 of CEC QCES 2025
One of the other sessions at CEC QRES that was of interest was the 'Operating in the NEM' session, from which we'll look to share more.
All Posts
Update to Constraint Violation Penalty (CVP) Factors – effective 19th September 2025
Referencing AEMO's MN129117 published Tuesday 16th September 2025 with respect to this Friday 19th September 2025.
Six different lenses to view the ESOO 2025 … giving wildly different perspectives
About 4 weeks ago the 2025 ESOO was released. In this article we highlight 3 x 2 different ways this might be viewed - and note some other dimensions not considered.
‘we’re moving fast, but not fast enough’
Also featuring in the (perhaps misnamed) 'Faster than Forecast' session was David Dixon from Rystad - here's two things that jumped out to me.
‘the ISP Step Change Scenario is divorced from reality’
A short note about some comments made by Oliver Nunn during the 'Faster than Forecast' session at Queensland Clean Energy Summit on Mon 15th Sept 2025.
The ‘Faster than Forecast’ session in the afternoon of day 1 CEC’s QCES 2025
I thought it was worth noting a couple of observations following the afternoon session at day 1 of Queensland Clean Energy Summit, titled ‘Faster than Forecast’.
Two big climate-related documents for Australia released on Monday 15th September 2025
Whilst attending day 1 of the CEC’s ‘Queensland Clean Energy Summit 2025’ yesterday we noticed the release of the Climate Risk Assessment, and the Adaptation Plan
Frequency drop on Thursday evening 11th Sept 2025 with Tallawarra B trip
A quick article to explore a frequency drop on Thursday evening 11th September 2025.
Trended physical/technical availability of Semi-Scheduled units – aggregated
A zoomed-out view of six metrics supports understanding of physical/technical semi-scheduled generator availability.
Will I see you at the inaugural ‘NEMdev’ conference in Brisbane on Tue 7th and Wed 8th October 2025?
Worth a short note to point readers here to the current details about the conference – which is to be held in Brisbane on Tuesday 7th and Wednesday 8th October 2025.
Guest Authored Posts
The increasingly stochastic and volatile NEM
Oliver Nunn from Endgame Economics argues that we must begin to think about the distribution of prices in the NEM as a function of weather.
Not all renewable projects are created equal: Why approval times vary dramatically across Australia
Alice Matthews examines how approval times for renewables vary widely by state and technology — with NSW wind projects facing the longest delays.
Detailed Analysis
Is VRE forecastable? (Part 1 in what might be a series)
Over many years we've invested deeply in analysing the nuanced answer to the question 'Is VRE Forecastable?'. This article (which has almost been posted many times before) is triggered today by yet one more...
NEMDE nightmares – parallel pathways and clashing constraints
Prompted by a question by a client in a training session for a new ez2view user, guest author Allan O'Neil has written 2,940 words to explain the price outcome in one particular dispatch interval...
The state-of-charge for 2024: The highs and lows of the big battery boom
Following on from a similar review this time last year, Dan provides an updated look at the economics and performances within the NEM's big battery fleet, making use of our recently released GSD2024.
Indicators of solar farm performance with GSD2024
Seeking indications of possible performance at solar sites announced in the CIS tender of 2024, we inspect statistics of nearby solar farms using the GSD2024.
New FCAS resources dominate enabled levels in 2024
Using the latest GSD – GSD2024 – we take the opportunity to reflect on FCAS enablement and how enabled levels are changing between technology types.
Keeping up with the curtailment 2024: A little? too much? or much ado about nothing?
Drawing from our freshly released GSD2024, Dan provides some deeper insights into curtailment in the NEM, beyond the headline totals that were a topic of much online discussion earlier this week.
The GSD2024 (Generator Statistical Digest 2024) is released
It's Wednesday 5th February 2025, and we* are pleased to release the GSD2024 … following a focused effort across both teams over the period since the changeover from 2024 into 2025. Some details here,...
Interconnector intricacies: double and triple auto-clamping of pesky negative residues
Dan looks at some recent and peculiar auto-clamping behaviour of interconnectors, and walks through the market arrangements causing these occurrences.