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.
Long-Term Market trends and forecasts
3.5 months after the turbine fire at Bulgana Wind Farm, we take an updated look
Combining together a bundle of different metrics related to the 'availability' of a wind farm, we take a look at what's happened at Bulgana Wind Farm over the past ~25 months.
Highlighting particular (frequency and/or AggROT) events through 2024 and 2025
In this article, we tie together various events since 1st January 2024 that featured either System Frequency outside the NOFB and large AggROT for Semi-Scheduled assets.
Daily NOFB exceedances since 2021
We count the number of days each month when there was at least one 4-second measurement outside the NOFB.
Instances of system frequency outside the normal operating band
How common is it that mainland frequency deviates outside the NOFB (normal operating frequency band)?
An updated tabular list of instances of large AggROT across Semi-Scheduled units
Earlier today we trended the incidence of large Aggregate Raw Off-Target across all Semi-Scheduled units. In this updated tabulated list, we list each of the largest instances from January 2024 to June 2025.
An updated long-range trend of large instances of Aggregate Raw Off-Target (AggROT) across all Semi-Scheduled units
It's ~18 months since we took a look at the trend of large instances of Aggregate Raw Off-Target across all Semi-Scheduled units. In this article we update the analysis with data to 30th June...
Frequency change associated with coal generation events
System frequency shows improved resilience to sudden coal generation events since 2020.
The frequency of coal generation events in 2025
A count of coal generator events indicates large unit trips are less frequent.
What’s all this, then, about Gas-Powered Generation in Victoria in the past week
Over the past week (and particularly Wednesday 11th June 2025 and Thursday 12th June 2025) gas-power generation ran strongly in Victoria. So we take a quick look at the historical context.
Cumulative ‘worm line’ view of NEMwide wind production in 2025 Q2 (to Sunday 8th June 2025)
Winter 2025 has arrived, with a cold front driving high wind production - which prompts this initial look in wind production for 2025 Q2 to date.
A long-run trend of monthly average Contingency FCAS prices in NSW
Another short article with this trend from the ez2view ‘Trends Editor’ to summarise the overall trend of (monthly average) prices in the 8 x Contingency FCAS markets focused on the NSW region.
Adoption and use of dispatch self-forecasting for solar units, Q1 2025
47% of dispatch intervals for semi-scheduled solar units are seeing a self-forecast used. When there are gaps, was the unit suppressed?
Adoption and use of dispatch self-forecasting for wind units, Q1 2025
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.
Regulation prices and enablement – a historical review
The introduction of frequency performance payments in 2025 changes how costs of regulating frequency are quantified and allocated. This article inspects historical trends in regulation FCAS enablement levels and prices.
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.
A trend of daily peak SA ‘Market Demand’– from 1st January 2008 to 11th February 2025
With respect to forecasts for peak South Australian ‘Market Demand’ in summer 2024-25 (and particularly with expectations of high demand on Wed 12th Feb 2025) we've provided this article as some context.
Some remarks on Victorian demand
Allan O'Neil takes a closer look at Victorian electricity demand on Sunday, February 2nd — which stood out as an unprecedented anomaly when looking at the history of weekend demand in the region.
A trend of daily peak Victoria ‘Market Demand’– from 1st January 2008 to 1st February 2025
With respect to forecasts for peak Victorian ‘Market Demand’ in summer 2024-25 (and particularly with expectations of Monday 3rd and Tuesday 4th February) we fielded a few questions about how extreme that might be....
A trend of daily peak NEM-wide ‘Market Demand’– from 1st January 2008 to 31st January 2025
With respect to forecasts for peak NEM-wide ‘Market Demand’ in summer 2024-25 (and particularly following Friday’s article) we fielded a few questions about how extreme that might be. So we thought we'd provide this...