Extended outage of Loy Yang A2 from 15th April 2022
A first look at the extended outage of Loy Yang A2 in Victoria following an electrical fault on Not-So-Good Friday, 15th April 2022.
Market Operations
AEMO releases preliminary report into TAS Market Suspension on 1st March 2022
A short note about the AEMO preliminary report, published 16th March 2022 - into the TAS market suspension on 1st March 2022.
AEMO released preliminary report into SA market suspension on 18th February 2022
A short note about the AEMO preliminary report, published 4th March 2022 - into the SA market suspension on 18th February 2022.
Market suspended in Tasmania on March 1st 2022
This afternoon the AEMO alerted of a market suspension in the TAS region, which coincided with the failure of two undersea fibre cables that caused parts of the state to lose internet access.
Updated (and extended) latency statistics for P5MIN file creation at the AEMO
Following the article on Tuesday 15th February about 'blow-out in file creation latency', in this article we update stats for the past week ... but also look as far back as late 2018 to...
Market Suspension in South Australia on Friday 18th February 2022
A quick note about the brief Market Suspension in South Australia on Friday afternoon, 18th February 2022.
NEMDE under strain? Escalation in File Creation times for P5MIN
Over the past 2 weekends in February (in particular) we have noticed AEMO's file creation time for 'P5MIN' files has increased significantly (and this has caused challenges for Participants). We take an updated look.
A quick look at the operation of Hornsdale Power Reserve (in ENERGY) for Monday 13th December 2021
Here's a snapshot of the ‘Unit Dashboard’ widget in ez2view of the HPRG1 unit (i.e. the pre-IESS generation side DUID for the Hornsdale Power Reserve) on Monday 13th December 2021
Price volatility in the South Australian region on Monday 13th December 2021
Some price volatility in South Australia on Monday 13th December 2021
Two recent improvements (in late November 2021) by AEMO in the dispatch process
A short article (in the midst of GenInsights21 completion) more broadly sharing 2 good news stories from AEMO in the context of the NEMDE dispatch process.
Ongoing file creation delays in P5 predispatch data at AEMO
Another set of 'file creation' data for the P5 Predispatch prepared by one of our team yesterday (Monday 15th November) suggests the file creation latency issues we highlighted in August are ongoing.
AEMO publishes Final Report on 24th January 2021 (total loss of SCADA systems)
A short back-dated article, to link in AEMO's final report on this incident.
What happened at each of the DUIDs impacted by the ‘Q>>NIL_CLWU_RGLC’ constraint equation on Sunday 24th January 2021 (Part 5)
It's now seven months since the SCADA outage on Sunday 24th January 2021 - and we're finally able to complete and publish this (quite long) article exploring some of the implications for units on...
Do you know what’s causing some increased latency on P5MIN data files on MarketNet in recent weeks (Potential Tripwire #4)?
Re-posted with update: In recent weeks we have noticed a trend towards increased latency in the creation of the ‘PUBLIC_P5MIN_*.csv’ files published by AEMO on MarketNet, and we wonder if you can help us...
Plenty of things went wrong in Queensland last Tuesday, but some very important things went right
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 went right - contributing to a...
Callide C Catastrophic Failure
Carl Daley from EnergyByte, provides more insight into the events of last Tuesday, which culminated in widespread blackouts throughout Queensland.
There were 3 events on Tue 25th May – and it seems likely that QNI separated briefly in Event 2
A deeper look at the frequency data (our own, and also from some others) reveals a number of other interesting things about what happened on Tuesday 25th May 2021 in Queensland.
ABC news report suggests Callide C4 will be offline for a long, long time
My evening reading of an ABC news article (about Callide C) released this afternoon suggests a long, long and expensive outage for Callide C4.
Sequence of Events on 25 May – A Very Short & Partial Visual Guide
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 Callide C Power Station. However I...
Here’s 7 of the Headline Questions we’re pondering about, following the dramas in Central Queensland on Tuesday 25th May
Sharing 7 of the 'Headline Questions' we're pondering, as we bury ourselves in the data surrounding the events that happened on Tuesday 25th May ... some of which will have long-lasting implications (not to...