Morning volatility in South Australia on Thursday 4th May 2023
The South Australian price has been bouncing up above $10,000/MWh on Thursday 4th May 2023
A second (still rushed) look at volatility in NSW very early on Monday 1st May 2023 … a possible snag with Liddell retirement from market data systems?
Taking a second look at the very early morning volatility in the NSW region on Monday 1st May 2023, we’ve used the ‘Constraint Dashboard’ widget in ez2view to get so far … and then added some *speculation* about how it might have been related to the retirement of Liddell from market systems. Is this accurate?
Australia’s Renewable Energy Boom – The Good, The Bad and the Downright Ugly
Tristan Edis from Green Energy Markets takes a deep dive into generator performance across the NEM. He provides his take on which wind and solar farms have outperformed and underperformed, through the recent renewable investment boom.
Spot price volatility in NSW and SA on Monday 1st May 2023
A very quick look at separate bouts of volatility on Monday 1st May 2023 – firstly in NSW and then later in South Australia.
Relatively low wind harvest through Sunday 30th April is a reminder of challenges in the energy transition
A quick article on Sunday evening to highlight the difference between sunlight hours and darkness hours in terms of pricing patterns today (the weekend following the closure of Liddell).
That’s all folks: the last unit of Liddell Power Station closes
Liddell Unit 1 ramped down it’s output to 0MW at roughly 10:30am this morning, signaling the full retirement of Liddell Power Station.
AEMO’s QED for Q1 2023 + AER’s analogous report released
A short article to note that the AEMO released it’s QED for Q1 2023 this morning, and a list of the early media coverage.
AEMO intermittently forecasting LOR2 (Low Reserve Condition) for NSW for Saturday 29th April 2023 – the day after the last Liddell unit is scheduled to close
As many know, Liddell Unit 1 is slated to close today (the last of the 4 units), Friday 28th April. Unfortunately coincident with that, AEMO is forecasting LOR2 low reserve condition for the middle of the afternoon tomorrow, Saturday 29th April 2023.
Timestamping Renewable Energy Certificates is a Bad Idea.
Tom Geiser argues against time-stamped Renewable Energy Certificates – and how the concept could impact trade, accuracy, market signals and other factors.
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.
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.
Liddell’s unit 4 closes
A quick note to show the last dispatch interval of output from Lidell Unit 4, with the two remaining units slated to follow suit in the coming days.
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.
Delving deeper into dispatch availability self-forecasting performance
We delve deeper into dispatch availability self-forecasts and the assessment process to further enhance our understanding of this important aspect, testing sensitivity to gate closure times and requirements on minimum intervals.
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.