Evening volatility continues into Thursday 10th June 2021
A short article noting volatility rolls into Thursday evening, 10th June 2021
Articles by Paul McArdle
One of three founders of Global-Roam back in 2000, Paul has been CEO of the company since that time.
As an author on WattClarity, Paul's focus has been to help make the electricity market more understandable.
Potential Tripwire #1 = the ‘invisible’ 5-minute Trading Periods?!
In this article we discuss the 1st of 3 Potential Tripwires that wholesale market participants and others will encounter from October 2021 … with Tripwire #1 coming from the implementation of Five Minute Settlement.
Three potential tripwires looming in October 2021, for those who are not wary
A short article, flagging three potential tripwires we’d like to ensure NEM participants and other stakeholders are aware of in the lead-up to two significant market changes from October 2021.
Demand, and prices, up in NSW and QLD on Wednesday 9th June 2021 … and low IRPM
A short note about the first of the volatility on Wednesday 9th June 2021.
Tight supply/demand forecast for NSW on Thursday 10th June 2021
A quick note on Tuesday evening, looking ahead to Thursday (10th June) with AEMO forecasting LOR2 in NSW with the cold snap, and enquiring about Generator Recall.
Discussion about electricity prices – following the Callide C4 Catastrophe
Discussion in a number of different places (including an AFR article today) prompted me to pull some data together of how (spot and futures) prices have trended through 2021, and how they changed with the Callide C4 problems.
Administered Pricing reached for Raise 6 second (Contingency) FCAS in Queensland
High Contingency FCAS prices (Raise 6 second) in response to what’s happened at Callide Power Station drove the Cumulative Price to (6 times) the Cumulative Price Threshold. Administered Pricing began Saturday evening for QLD.
Spot market volatility report – Thursday 3rd June 2021 (as at 17:54)
Evening spot price volatility has become a regular thing – here’s some of it for Thursday 3rd June 2021
AEMO estimates it paid $11,612.33/MWh for Reserve Trader on Tuesday 25th May 2021 in QLD
A short note, following AEMO reporting estimated costs for RERT (Reserve Trader) on Tuesday 25th May 2021 in QLD.
Josh Stabler highlights possible issues with supply of replacement turbine for Callide C4
On LinkedIn this afternoon, Josh Stabler (of Energy Edge) identified another consideration for the repair process for the significantly damaged Callide C4 steam turbine.
Gas-fired generation up following the Callide C4 Catastrophe
A client sent in this ez2view image this afternoon pointing out another factor that’s been occurring in the absence of 4 x Callide units – markedly increased production from gas-fired generation.
And so the daily solar bedtime story continues … on Wednesday 2nd June 2021 (with 4 x Callide units off, etc…)
Only two dispatch intervals (thus far?) of extreme pricing tonight for QLD and NSW (Wed 2nd June 2021). Here’s the first one…
Ten Years of Performance History for Callide C4, from the GSD2020
In order to assist discussions on social media about what’s been happening with Callide C4 over the past 10 years, using the GSD2020 I’ve published some actual detailed performance metrics.
AEMO releases Preliminary Report: Trip of multiple generators and lines in Queensland and associated under-frequency load shedding on 25 May 2021
The AEMO has released its 22-page Preliminary Report into the Callide C4 Catastrophe and the subsequent events.
Initial look at System Strength constraints (curtailing north QLD Solar and Wind) in Event 3 on Tuesday 25th May 2021
We’ve started exploring the constraint data from the QLD region for back on Tuesday 25th May 2021 (with the Callide C4 catastrophe) and here’s some initial information.
Some good information about what happened with Callide C4 inside the AFR today
A note of thanks to Mark Ludlow at the AFR for the compilation of some great initial information about what happened at Callide C4 unit just over a week ago (on Tue 25th May 2021).
Updated list of events on 25th May 2021 that we’ll be investigating – time permitting
For ease of future reference, here is the list of events that occurred on Tuesday 25th May 2021 … as we (currently) see them.
Price Volatility (now a regular evening event for QLD and NSW) on Tuesday 1st June kicked along by Darling Downs outage.
A number of things happened late today – with the trip of DDPS1 (only declare credible contingency earlier in the day) giving more impetus to spot price volatility in the QLD and NSW regions already facing tight supply/demand following the Callide catastrophe and LOR1 in NSW.
Delayed Return to Service for Callide B1, B2 and C3
First short article for Tuesday evening following report from CS Energy that the return to service
First pass review of bidding behaviour on Tuesday 25th May 2021 in Queensland, after Event 2
This evening I’ve taken a first pass look at how QLD generators bid on Tuesday 25th May 2021, in response to the tight supply/demand balance created by the Callide C4 outage and cascade of events.