Investigating last Friday’s frequent frequency swings
Allan O'Neil provides an explainer about how small deviations in supply and demand are managed in the NEM, in order to help us understand the apparent swings in...
Allan O'Neil provides an explainer about how small deviations in supply and demand are managed in the NEM, in order to help us understand the apparent swings in...
Guest author, Allan O'Neil, takes the release of the GSD2022 as an opportunity to take a look at the past 10 years of performance of the four-unit Liddell...
Guest author, Allan O'Neil, contributes his first article with respect to the islanding event in South Australia of November 2022 (in this article taking a look at FCAS...
With all regions of the NEM having been suspended by AEMO on Wednesday 15th June 2022, guest author Allan O'Neil takes an initial look at what's visible in...
Tweet at your own peril A quick mea culpa: after squinting at an ez2view layout early this morning I dashed off a tweet suggesting that six of AGL...
Guest author, Allan O'Neil, returns to WattClarity with this review of southern region prices on Monday 31st January 2022 to highlight one example of counterprice flows on the...
Guest author, Allan O'Neil, takes an initial look at some of the highlights included in the AEMO's Electricity Statement of Opportunities for 2021 (a 10-year forecast for what...
For a second portion of Q2 “elephant eating”, I’ll look in some detail at the dynamics of an early instance of spot price volatility in Queensland, because many...
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...
Whilst there were many things that went wrong on Tuesday 25th May 2021 (last week), guest author Allan O'Neil highlights that there were at least 4 things that...
Normally this would be part of a much more complete article adding to WattClarity’s growing coverage of the major power system events in Queensland following the incident at...
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...
Guest author Allan O'Neil puts together an in-depth explainer about system strength and looks at the current approach to system strength management in South Australia, its impacts and...
Through the lens of the GSD2020, Allan O'Neil looks at the much-discussed role of gas-fired generation in the 'energy transition' of the NEM’s generation sector
On 25th November, guest author Allan O'Neil examined the 'X5 Constraint'. Two weeks of operation have passed, so now Allan reviews some of what's happened.
Given the great interest in the new 'X5 constraint', guest author, Allan O'Neil, has invested some time to pick the new constraint equation to understand (and then explain)...
Paul McArdle recently drew my attention to a short Twitter thread started by David Osmond on the arcane topic of NEM system frequency behaviour: At Paul’s invitation...
Guest author, Allan O'Neil, takes a look at the AEMO's 2020 ESOO to unpick the reason for the differences in outlook (and the sensationalised news headlines) compared to...
Guest author, Allan O'Neil, invests some time to explore a number of different aspects of Easter Saturday (11th April 2020), each noteworthy in their own right (including low...
Guest author, Allan O'Neil tries to piece together further detail of what is intended with the apparent tightening of the Reliability Standard (which has sat at 0.002% USE...