More time has elapsed since ‘Part 3’ on 24th March – today I’m posting a shorter piece (Part 4) that explains how RHS of the ‘Q>>NIL_CLWU_RGLC’ constraint equation drove down output and led to the price spike on Sunday 24th January 2021.
Articles by Paul McArdle
Looking back at Tuesday 13th April 2021 – a day in which the ex-tropical cyclone Seroja in Western Australia caused some wobbles in rooftop solar PV output in South Australia.
David Osmond’s question on Twitter prompted me to have a look at large wind production overnight.
Reminded by today’s spikes, here’s a quick look at a similar price spike that occurred yesterday (14:35 on Friday 9th April 2021 in the QLD region).
Three price spikes in the QLD region on Saturday 10th April 2021 help to remind us that how increasingly dependent we are on various machinations of the weather (including, on these occasions, cloud cover and solar output).
Following a number of requests from our clients, we are pleased to note that a GSD2020 Data Extract is now available.
It’s taken a while to find the time – but today I’m posting this next analytical piece (Part 3) that seeks to understand what happened on Sunday 24th January 2021 with the NEM-wide SCADA Failure, which contributed to the price spike that occurred in QLD by virtue of what it did to the ‘Q>>NIL_CLWU_RGLC’ constraint equation.
A short article this afternoon to link through to the Preliminary Report published by the AEMO, looking into what happened in South Australia last Friday (12th March 2021).
Two months ago prices spiked in QLD on a Sunday afternoon when AEMO lost SCADA data feed. One month ago AEMO published a preliminary report. In the background we have been taking a look…
In what’s become a fairly regular occurrence the past couple months, the price spiked in QLD for a single dispatch interval as the sun was setting.
A different type of market notice today (speaking of potential curtailment of embedded generation in South Australia) points to the future … accelerated by Heywood repairs in this instance.
A shorter article – thinking more about the future, prompted by one of the factors that contributed to the price volatility seen in South Australia on Friday 12th March 2021
Prices have (finally!) subsided, so here’s an initial review of what I can see about what happened in South Australia on Friday evening 12th March 2021. Apologies for mistakes (it’s rushed, there will be some)…
The price has spiked in South Australia this evening (Fri 12th March 2021). Here’s Part 1…
This morning the AEMC has published its final rule focused on clarifying how Semi-Scheduled generators should follow dispatch targets – including in dispatch intervals where prices are negative, and some had been unexpectedly switching off.
AEMO Market Notice 83206 today notifies the broader market of the rectification work on the Heywood transmission (damaged 13 months ago) to be conducted from Friday morning this week.
Two initial thoughts, following EnergyAustralia’s announcement that they will close Yallourn Power Station four years earlier than initially planned (mid-2028).
Here’s three key insights to listen for this Thursday … when Marcelle Gannon speaks at the CEC’s Large-Scale Solar (virtual) Forum.
Prompted by several different conversations offline in early 2021, I’ve taken a quick look at what have been traded volumes (on ASX) of the traditional ‘PEAK’ hedge contract for the NSW, QLD, VIC and SA regions. What does this tell us about a market view of the energy transition?
A report released this week by Green Energy Markets and the IEEFA exploring the prospect of accelerated coal closures, has itself caused some ripples…