A collection of articles about, and directly related to, WattClarity Deeper Insights Publications
This article references two separate threads - the acquisition (by Aula Energy) of 5 x operational Solar Farm assets from Lightsource BP, and the slightly earlier release of the GSD2025.
In this instalment of our annual review of the NEM’s expanding battery fleet, we draw on the GSD2025 to look at long-term trends in market revenue, high-price capture, the early returns of FPP, and network curtailment.
We find the trend for increasing enablement of the 'new' resources has only continued, that the new FCAS resources are the dominant providers of all FCAS services nowadays.
One of the things that jumped out to us with the GSD2025 was the confirmation that all four units at Yallourn Power Station continued the pattern of late 2024 in ceasing to offer any of the 10 x FCAS markets.
Alex Leemon looks at how FCAS bidding and enablement volumes have shifted over the past decade — drawing on New South Wales data — to unpack what’s been driving the post-2023 collapse in FCAS prices.
We’ve been asked to ‘present insights into the Australian spot electricity market’ at the ASX Power Symposium on Wednesday 18th February 2026.
Today we’ve released the Generator Statistical Digest 2025 — the latest edition of our annual, unit-level reference report on generator performance across the NEM.
47% of dispatch intervals for semi-scheduled solar units are seeing a self-forecast used. When there are gaps, was the unit suppressed?
We summarise how wind units are using self-forecasting to-date. The analysis leads us to consider where upcoming market change may lead the industry.
This article reviews regulation FCAS costs in 2024, relative to maximum capacity, and uncovers drivers behind high non-scheduled unit costs.
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 claim on social media.
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.
After reviewing the latest version of our Generator Statistical Digest (GSD), David Leitch shares his top insights about VRE curtailment across the NEM in 2024.
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.
Using the latest GSD – GSD2024 – we take the opportunity to reflect on FCAS enablement and how enabled levels are changing between technology types.
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, more coming in subsequent articles ...
Yesterday, our team produced ‘not-for-dissemination early draft’ of the GSD2024. We take a look through this (and use ez2view) to explore reports of a trial of 'two-shifting' (and other enhancements to flexibility) for the Mt Piper coal-fired units in recent months.
In this second excerpt from GenInsights Quarterly Updates for 2024 Q2, we share (some of) the updated analysis completed of Aggregate Scheduled Target (a metric that points to the requirement for Firming Capacity).
Following the recent release of the review of 2024 Q2 (and belated release of the review of 2024 Q1) here's some updated statistics on coal unit performance.
(Last week) on Thursday 22nd August 2024 we released our 'GenInsights Quarterly Updates' detailed review of 2024 Q2, and on Friday we delivered an Executive Briefing to one of our clients.