guest author


Two Wrongs Don’t Make a REZ

Tom Geiser discusses transmission access and the efficacy of Renewable Energy Zones. He examines what the underlying problems are and how they can be solved directly.


Eating the NEM’s Q2 Elephant – An Appetizer

An old adage runs that to eat an elephant, it’s best to proceed in small servings. With a very eventful Q2 in the NEM not yet finished, the number of headline events is already large enough – unexpected price volatility…


Callide C Event Fallout

Carl Daley of EnergyByte examines the ramifications of the Callide Power Station outage and discusses the big losers and winners from the situation.



Callide C Catastrophic Failure

Carl Daley from EnergyByte, provides more insight into the events of last Tuesday, which culminated in widespread blackouts throughout Queensland.



Big Batteries – big issues!

Guest author, Carl Daley, investigates why big batteries weren’t able to fully capitalise on extreme spot prices in SA on Friday 12th March.


Down 55% – but not out

Over 2,000 MW – or around 55% – of South Australia’s firm supply capacity was unavailable last Friday evening (March 12, 2021), along with virtually all of its large-scale renewable supply (a further 1,800 MW or so) but the lights…



100% Renewables – A year in practice

Adam Clarke from The City of Newcastle local government publishes this detailed look at what operating on a 100% renewable electricity contract looks like in practice, a year on.


Lets talk about demand

David Leitch of ITK Services examines how electricity is losing its share of energy consumption in Australia, while also looking at the main drivers behind lower electricity demand this Summer compared to the previous year.




Analysis of Large Thermals using the GSD2020

Guest author, Nick Bartels, compares calendar year results from GSD2020 to those in the earlier GSD2019 to explore how some thermal units in QLD and SA are changing operating patterns as part of the energy transition




Highlights from the 2020 GSD

David Leitch highlights some themes that stuck out to him as he read through this year’s edition of the Generator Statistical Digest – including a look at how batteries are dominating the FCAS market, some surprises with capacity factor, and other things