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.
Articles by Linton Corbet
Linton is a Senior Software Engineer and Market Analyst, who joined Global-Roam in August 2020.
Before joining the company, Linton worked at the Australian Energy Market Operator (AEMO) for seven years, including four years as an analyst within their demand forecasting team. Before entering the energy sector, he worked as an air quality scientist in the Czech Republic.
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)?
Tasmanian demand drop on 16 August 2025 – part 2
We follow on from A 292MW drop in "Market Demand" in Tasmania, on Saturday 16th August 2025 enlisting this "Part 2" to understand the sequence of events using 4-second data.
Frequency change with Yallourn unit 2 trip
We assess whether the trip at Yallourn 2 on 26 August 2025 was large enough to drive a frequency disturbance.
Unit deviations from target on Tuesday 19th August 2025
It appears it was unit availability used to set the target for dispatch that went awry, rather than unit output.
High level view of some contributing factors to 19 August frequency spike
Among other aspects, a large dip in solar UIGF aligns with the frequency deviation observed on 19th August 2025.
Mainland Frequency Spikes to 50.2 on Tue 19th August 2025
On Tuesday the 19th of August between 11:45 and 12:20 there was a significant frequency deviation on the mainland.
Turbine availability at Bulgana wind farm
We use the elements available dataset to better understand turbines available at Bulgana in recent months.
Frequency performance payments 44 days in, part 2
Categories with a longer bar left of zero are losing more of their spot energy market revenue to regulation and PFR costs.
AEMO’s Quarterly Energy Dynamics for Q2 2025
A brief note that AEMO's Quarterly Energy Dynamics for Q2 2025 is published.
Lower 1-second FCAS volatility continues in SA
A brief article to note the continued impact of the Tailem Bend to Tungkillo line outage on FCAS prices.
Basslink flows shift since end of agreement on 30th June 2025
An agreement restraining how Basslink is bid into the energy market has ended, resulting in changes in bidding and energy flows.
Frequency Performance Payments 44 days in
An initial review of payment and cost outcomes of the first 44 days of financial operation of the FPP arrangements.
Suspect SCADA drove data discrepancy on 9th December 2024
The incident description in the scheduling error declaration provides us with a glimpse into the underlying cause.
Final incident report on the power system incident of 13th February 2024 released
In July 2025 AEMO released the final report into the review of the major power system event of 13 February 2024.
Transgrid’s Project Assessment Conclusions Report for System Strength released on Monday 14th July 2025
Transgrid's Project Assessment Conclusions Report for System Strength assessed more than 100 individual solutions aimed at helping to meet its system strength obligations under the National Electricity Rules.
Review of the System Restart Standard 2025 – Technical advice provided
As the technologies underpinning the power system change, so too must the approach to supporting system restart.
Volatile price period runs over 5 hours on 2 July 2025 in SA
If we had been in the previous financial year, the old CPT of $1,573,700 would have been tripped.
Evening spot prices less volatile than anticipated in SA on July 2, 2025
Spot price volatility occurs in SA on 2 July 2025, yet not to the level that risks exceeding the cumulative price threshold.