Fat lady singing for three down (with LD02 on the way out) and one to go at AGL’s Liddell Power Station
A short article to mark the closure of Liddell unit 2 on Wednesday evening, 26th April 2023.
Articles by Paul McArdle
Paul was one of the founders of Global-Roam in February 2000. He is currently the CEO of the company and the principal author of WattClarity. Writing for WattClarity has become a natural extension of his work in understanding the electricity market, enabling him to lead the team in developing better software for clients.
Before co-founding the company, Paul worked as a Mechanical Engineer for the Queensland Electricity Commission in the early 1990s. He also gained international experience in Japan, the United States, Canada, the UK, and Argentina as part of his ES Cornwall Memorial Scholarship.
Beryl Solar Farm (BERYLSF1) shut down with grass fires
Alerted by RenewEconomy on social media that Beryl Solar Farm was offline due to bushfires, I used ez2view to take a quick look.
Case Study of Tuesday 16th February 2021 (Part 1) … large instance of collective over-performance for Semi-Scheduled units
Another short article today presenting an overview of Aggregate Raw Off-Target (AggROT) for Semi-Scheduled units on 16th February 2021 (the largest incidence of collective over-performance at that time).
Case Study of Tuesday 23rd August 2022 (Part 1) … large instance of collective over-performance for Semi-Scheduled units
Another short article today (from GenInsights Quarterly Update for Q3 2022) presenting an overview of Aggregate Raw Off-Target (AggROT) for Semi-Scheduled units on 23rd August 2022.
Case Study of Friday 20th January 2023 (Part 1) … large instance of collective over-performance for Semi-Scheduled units
Another short article today (also from GenInsights Quarterly Update for Q1 2023) presenting an overview of Aggregate Raw Off-Target (AggROT) for Semi-Scheduled units on Friday 20th January 2023.
Case Study of Friday 3rd February 2023 (Part 1) … two consecutive large instances of collective under-performance for Semi-Scheduled units
A short article today (whilst in the midst of finalising GenInsights Quarterly Update for Q1 2023) presenting an overview of Aggregate Raw Off-Target (AggROT) for Semi-Scheduled units on Friday 3rd February 2023.
Glitch with Victorian SCADA data triggers (>24 hour) Market Suspension in Victorian Region – Saturday 22nd April 2023
In an event (that seems) similar to 17th March 2023, a glitch in SCADA leads to the suspension of the market in the Victorian region on Saturday afternoon/evening 22nd April 2023.
A (very slight) delay to closure of Liddell unit 4 … but LD01 and LD02 slightly earlier
Latest data from AEMO (from Fri 14th April) suggests Liddell unit 4 might close a couple days later than when we'd looked in February.
Questions about electricity bills with closure of Liddell looming
Around eight days till the scheduled closure of Liddell's next-to-close unit (and prompted by an article in the AFR), we take a quick look at how they've been bidding.
Some analysis of electricity usage (and solar production) at home
The long weekend provided an opportunity to review 10 years of electricity bills at home to look at net usage patterns and net solar injections from our home rooftop solar system. What have we...
New low-point for demand in NSW on Easter Sunday, 9th April 2023
It's Easter Sunday (9th April 2023) and it looks like NSW minimum demand has fallen further from the prior record set 6 months ago.
AEMO published Preliminary Report into NSW brief market suspension on 17th March 2023
On 6th April 2023 the AEMO published this preliminary report into the brief market suspension that occurred in NSW on 17th March 2023.
AFR reports Callide C co-owner (with CS Energy) goes into voluntary administration
AFR and the Australian (and elsewhere?) there are reports of the co-owner of Callide C (with CS Energy) being placed in voluntary administration.
Reviewing what happened in NSW and QLD on Thursday 16th March 2023 (with Actual LOR2, Volatility and Reserve Trader almost triggered, etc) … part 1
Given the significance of the event (Reserve Trader almost triggered on Thursday 16th March - 34 days till the closure of Liddell Unit 4) we're investing some time in exploring more detail of the...
Spot price volatility in QLD and NSW on Sunday 19th March 2023
A quick record of the start of volatility on Sunday evening 19th March 2023.
New all-time record for Operational Demand in QLD on Friday 17th March 2023 … but not for Market Demand
Looks like a new all-time record for Operational Demand in the QLD region early this evening, Friday 17th March 2023.
Actual LOR2, and a run of volatility in NSW and QLD … only 34 days till the closure of Liddell unit 4
Looks like we've (sort of) dodged the Reserve Trader bullet on Thursday evening 16th March 2023 ... but still poses plenty of questions.
AEMO commences RERT negotiations in NSW on Thursday 16th March 2023
Second post for this afternoon/evening following AEMO announcement to commence RERT Negotiations for this evening in NSW.
Late ‘summer’ hot blast drives demand higher in NSW and QLD
Some late hot weather (in Autumn 2023) is providing for some activity in the market
Splitting the ‘X5 constraint’ into two … double trouble?
From 08:00 (NEM time) this morning, the old 'X5 constraint' (i.e. formerly formally known as 'N^^N_NIL_3') has been split into two (i.e. addressing separately risk of tripping of either/both Bendigo to Kerang 220kV line...