Overview of Regulation FCAS costs in 2024
This article reviews regulation FCAS costs in 2024, relative to maximum capacity, and uncovers drivers behind high non-scheduled unit costs.
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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.
(A first step into the complexities of) the Dispatch Interval in the Real World
A third step in the 'Energy Literacy' journey in helping readers to understand the complexities within each and every Dispatch Interval.
Afternoon trip of Bayswater unit 3 delivers rapid drop in Mainland Frequency
A quick record of a unit trip at Bayswater Power Station on Wednesday afternoon 5th March 2025.
Unplanned outage of No 1 leg of Directlink (was this related to the emergence of TC Alfred?)
AEMO says 'At 1030 hrs the Ewingsdale-Mullumbimby 9G5 132kV line and the Directlink DC1 tripped'. Was this related to TC Albert?
Comparing Frequency Measures (Frequency, FI, FM)
The faster-moving nature of the FM, with the introduction of FPP, removes predictability in the indicator for frequency performance.
The curious case of the ‘Q^^TR_CLHA_-600’ constraint equation on Monday 3rd March 2025 (Part 1)
A first walk through the ‘Q^^TR_CLHA_-600’ constraint equation (at the 10:00 dispatch interval on Monday 3rd March 2025), before 'next day public' data is available.
Watt’s Within a Dispatch Interval? A *very* simplistic view, for a start…
A second step in the 'Energy Literacy' journey in helping readers to understand the complexities within each and every Dispatch Interval.
Three of the common building blocks within the National Electricity Market
This article is a first step into exploring some of the complexities within three of the commonly used time-steps across the NEM.
‘Market Demand’ drops 401MW in 5 minutes on Sunday 2nd March 2025
All I have time to do now is note another change greater than 400MW in a 5-minute period – this time in in Victoria to the 11:10 dispatch interval (NEM time) on Sunday 2nd...
Guest Authored Posts
Not all renewable projects are created equal: Why approval times vary dramatically across Australia
Alice Matthews examines how approval times for renewables vary widely by state and technology — with NSW wind projects facing the longest delays.
Triple C conditions (cold, calm and cloudy) across the NEM last Thursday evening 26th June 2025
Carl Daley examines the underlying conditions and outcomes that occurred last Thursday evening, the 26th of June.
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