A collation of articles pertaining to the GSD2025, which was released in January 2026:
1) collating data for the 10 years to 31st December 2025
2) With a particular focus on calendar 2025 in a detailed ‘B’ page for every DUID operational in ENERGY through 2025.
This piece draws some parallels between the previous solar boom-bust cycle and the current battery buildout, and asks whether a 'battery correlation penalty' may already be taking shape.
Several recent conversations with different people prompted a look at the (under commissioning) Wambo Wind Farm via the GSD2025 and our Software. We share some of this here.
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 the draft 2026 ISP, the AEMO materially increased wind capacity factor assumptions for several renewable energy zones. In this article, we compare those assumptions against actual capacity and availability factors for wind units across the NEM in 2025.
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.
The recent article in ESD News about ‘Major project: Pelican Point Power Station upgrade’, and the release of the GSD2025, prompted us to take a look.
We’ve been asked to ‘present insights into the Australian spot electricity market’ at the ASX Power Symposium on Wednesday 18th February 2026.
This latest instalment of our annual review into solar and wind farm curtailment across the NEM, looks at outcomes in 2025 and highlights increasingly divergent results by region and by asset as network constraints, pricing dynamics and seasonal weather conditions interact.
David Leitch reflects on how coal generators have adapted to a changing NEM, drawing on time-of-day profiles, and data from our GSD, and explains why — despite that flexibility — the underlying economics are becoming increasingly fragile as batteries reshape the evening peak.
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.