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...
Detailed Analysis
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...
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...
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.
A quick review of Queensland bidding over recent days (incl Wed 22nd Jan 2025)
Whilst we're waiting to see where 'Market Demand' lands for Friday 24th January 2025 (we might report that later), I was curious in terms of supply-side performance of...
Very fast FCAS, 2024 in review
A 2024 review of the trend in the very fast FCAS services captures enablements, availabilities and costs.
Mainland grid frequency: cat ears and golf
It was captured by a keen eyed reader, that the distribution of mainland grid frequency in recent times now exhibits cat ears.
Four NEM-related themes from COP29
After returning from COP29 in Baku, Dan shares his thoughts about energy transition challenges in international electricity markets, and how they intersect with what we're seeing in the...
Down for the count: eight separate transmission tower failure incidents in less than five years
A map of where the eight separate transmission tower incidents have occurred over the past five years.
So long solo solar, and hi hybrids?
A summary of the key challenges facing standalone solar and wind farms over the past several years, along with discussion and thoughts about whether new rules surrounding hybrids...
What the last twenty years of the ESOO tells us about blackout predictions
After skimming through the last twenty editions of the ESOO over the past couple of days, Dan shares some thoughts about what has and hasn't changed over the...
A tale of two mega-projects: Project Energy Connect and Snowy 2.0 timelines (Part 2)
In the second half of this two-part case study we look at a timeline of the Snowy 2.0 project, and discuss the history of mega-projects in the NEM.
A tale of two mega-projects: Project Energy Connect and Snowy 2.0 timelines (Part 1)
A timeline of evolving expectations for the cost, benefits, and delivery dates for Project Energy Connect - following news of recent issues surrounding the project.
A running view of the recent wind drought
A view of cumulative total wind production in Q2, highlighting a lack of spatial resource diversity, and the future challenges for gas and long-duration storage.
Who’s who in the ESOO
A compiled list of development projects delayed or leaving the market in between the ESOO2023 and its update released two weeks ago. Along with some analysis of longer...
Regulation FCAS Costs in 2023
Following a presentation with the CEC, Linton shared some insights into FCAS Regulation costs for wind and solar units over last calendar year.
Keeping up with the curtailment Part 2: The what and the where
Dan Lee takes a deeper dive into network and economic curtailment, and shares some charts and data maps that demonstrate seasonal effects, and the geographic spread of units...
A precis of the ‘Exploring Wind Diversity’ analysis completed in Appendix 27 of GenInsights21
Almost 2.5 years since we released GenInsights21, today we're publishing this article that contains a precis of the analysis included as Appendix 27 under the title 'Exploring Wind...