A collection of articles about events that occur through winter 2021 in the NEM (i.e. March, April, May 2021)
Last night, in addition to the dramas unfolding in the QLD region, we set a new record for coincident NEM-wide wind production - eclipsing the prior record from exactly 6 weeks ago.
Third short article this evening, after it looks like we've escaped from a tight supply/demand balance (reasonably) unscathed.
Looks set to be a very tight supply/demand balance this evening in Queensland. Here's hoping everything goes right for the AEMO Control Room!
A quick snapshot from NEMwatch at 14:20 today highlighting the loss of approximately 2000MW of demand this afternoon – dropping the level of Scheduled Demand down to 3,775MW: The AEMO Market Notice highlighted says:...
Was speaking with someone this morning about the expectation that there would be price volatility this evening, and the market obliged. It’s only just started, but here’s the second spike (at 17:40) captured in...
Spot prices spiked across mainland regions this evening - firstly at 17:55 (above $1,000/MWh). and then at 18:00 (up towards $15,000/MWh). Here's a first look.
Saw an update from the AER this evening pertaining to Liddell unit 3, and had a quick look with the power of the Generator Statistical Digest 2020.
Over the week that has just passed we kept noticing production from wind farms across the NEM was fairly muted - so we've had a look at what it meant, in aggregate daily capacity...
In between other jobs today, we've taken a look at why the price spiked yesterday (Tue 20th April) in QLD ... at an earlier time than we had become accustomed to seeing it occur...
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...
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).
Over 2,000 MW – or around 55% – of South Australia’s firm supply capacity was unavailable last Friday evening (March 12, 2021), along with virtually all of its large-scale renewable supply (a further 1,800...
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...
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.