Next layer of the onion, in investigating the eerily similar (and closely related) frequency spikes outside the NOFB on Friday 10th April 2026 and Saturday 11th April 2026.
We use a chart to see how semi-scheduled unit availabilities changed their origin. With interruptions to SCADA across NSW, many of the inputs that an availability forecast depends on could have been impacted.
A zoomed-out view of six metrics supports understanding of physical/technical semi-scheduled generator availability.
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.
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.
Separating curtailment from being priced out, we uncover features of unit utilisation by fuel type on the 27th November 2024.
Our GSD2023 was released just over 4 weeks ago. Finally today I have a chance to utilise the GSD2023 Data Extract to take a look across all the Semi-Scheduled units (i.e. Wind and Solar) and see who's been using MaxAvail in their bid to limit...
A bout of severe weather for many parts of south-eastern Australia brought challenging weather conditions which appear to have impacted variable renewable energy forecasts for the NEM. The case study delves into forecast differences on the 7th, 8th and 9th of September 2023.
With ez2view v9.8.5.1 released yesterday (Tue 30th Sept 2023) with enhancements to 'Generator Outages' we take the opportunity of some questions about Kogan Creek Power Station to have a look at the usefulness, and possible additional tweaks to make, to this software widget.
A week's worth of data provides indications of how semi-scheduled generators are using bid MaxAvail to manage dispatch availability.
It is indispensable to understand how the semi-scheduled unit availability gets produced to optimally manage the critical inputs and comprehend dispatch outcomes. This article explains the key inputs and processes, focusing on the dispatch timeframe.
The change to use MaxAvail from the energy bid, for semi-scheduled units, was implemented on 7 August 2023.
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 Energy’s eleven coal-fired generation units were offline – three at Bayswater, two at Liddell, and one at...
A second 'mystery DUID' puzzle ... perhaps more complex than the first ... from GenInsights21, for those who like to be challenged in ways like these.
The volatility that has been with us for weeks now (particularly QLD and NSW), and the dramas unfolding at Callide power station, prompted me to have a broader look at the availability of black coal plant across QLD and NSW, and compare this to prior...
Some excerpts from the Generator Report Card to sample some of the analysis we performed to assess various aspects of the 'dependability' of coal-fired power stations in the NEM. In this post we highlight availability (or, more precisely, the level of unavailability) as an aggregated...
The framework we used to analyse the extent to which coal-fired power is "dependable" in the Generator Report Card, and the extent to which it's been changing.
AGL released its investor presentation yesterday - several people flagged the availability stats within the presentation (they knew we were looking at aspects of reliability for our Generator Report Card 2018). Hence I take a brief detour and have a quick look.
Following from (what we have seen as) an increase in diversity of concerns (and claims) about different aspects of generator performance, we're leveraging our extensive data set and capabilities to have a deeper look, leading to the publication of a Generator Report Card with data...
Five thought-provoking questions about what really happened in Queensland over summer 2013 - and the supplementary question about what it all means for the future.