Price volatility in South Australia on Thursday 30th December (2nd day in a row) – and High Temperature alerts broadened
A short article following a price spike in SA on Thursday afternoon, 30th December 2021
low wind production
Low points remain (stubbornly low) in NEM-wide wind harvest
Low wind harvest, NEM-wide, was a feature of Tuesday 14th December 2021.
Low wind production (inside NSW+QLD) was one other factor contributing to price volatility in Q2 2021
As Q2 2021 unfolded, it seemed that there were many instances where prices spiked during evening demand peaks - and that wind output was low at the time. So I took a closer statistical...
A list of (some of) the factors contributing to the volatile price outcomes seen in Q2 2021 – particularly QLD and NSW
Prompted by last Friday's publication of the AER's 'Wholesale Markets Quarterly' for Q2 2021, here's a tabulated summary of some of the contributing factors of spot price volatility (and hence high average prices) for...
Blowing a gale across SE Australia … but July has not (yet?) hit a new peak instantaneous wind output record
A quick look at monthly stats shows that, whilst it's been blowing a gale in SE Australia in recent days, it's not yet set a new 'peak instantaneous wind farm output' record.
Mainland region price spikes on Tuesday 6th July 2021
A short note about the start of the evening price spikes on Tuesday 6th July 2021 (these are ongoing, at the time this was posted).
Gas issues and low wind contribute to low NEM-wide IRPM (and volatility) on Monday 21st June 2021
A short article marking (yet) another volatile evening in the NEM in this 'elephant' of a Q2 2021... now with some added challenges for gas-fired generation.
Yallourn down to 1 unit, on low load operation – following flood risks at the adjoining mine
A Saturday morning review of the situation in Victoria, with supplies from Yallourn restricted due to flooding in the Latrobe Valley ... coincident with other factors
Prices Spike on Sunday 30th May with low NEM-wide IRPM (without 4 Callide units, and low Wind Production)
On Friday evening (28th May) and again this evening (Sun 30th May) my phone buzzed plenty of times - due to price volatility, and also alerting on low IRPM (enabled with Callide units offline,...
Where’d the wind go, during the last week of April?
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...
With increasing diversity, the low point of instantaneous aggregate Wind Generation across the NEM is nudging away from 0MW
Patricia Boyce' challenging question coincided with the low point of cyclic wind output across the NEM this afternoon, and prompted some thinking...
‘Dunkelflaute’ Down Under
Yesterday evening (Tue 9th June 2020) saw an example of ‘dunkelflaute’ across the NEM. It's a phenomenon we will see increasingly as the transition progresses, so it's something we should be seeking to understand,...
A further look at Thursday Jan 30th
Guest author, Allan O'Neil does a masterful job with limited time in reviewing some of the goings-on in the NEM (particularly VIC and SA) on Thursday 30th January 2020
Thursday 30th January 2020 sees demand reach 34,257MW and LOR2 notice issued for both VIC and SA
A brief overview of a stressful afternoon/evening in the NEM, where a confluence of events (heatwave-driven high demand, low wind, coal unit trip, etc...) drive LOR2 low reserve condition notice in both VIC and...
AEMO speaks directly to Wind and Solar Farm operators – please alert us to temperature limitations on your assets
In what seems (to me) to be an extraordinary measure, AEMO speaks directly to the operators of Wind and Solar assets in the NEM, asking them to update the AEMO on the high-temperature limitations...
High SA Prices on Monday 9 July–Business as Usual?
One of our guest authors, Allan O'Neil, takes a closer look at what happened in the South Australian region of the NEM on Monday 9th July 2018
Monday 9th July sees yo-yo prices in South Australia
Some brief analysis of today's price volatility seen in the South Australian region of the NEM
Recapping a shaky week for the supply-demand balance in the NSW region last week (Mon 4th June to Fri 8th June 2018)
The start of some analysis that helps to identify the variety of factors that combined to give a shaky balance between supply and demand in NSW last week.
Network outage, and low wind, combine to drive spot price volatility in the SA region on Thursday 26th April
An unexpected network outage in the south-east of South Australia restricts supplies from Victoria at a time of low wind supply in South Australia and results in the dispatch price spiking to $14,200/MWh from...
Wind production in South Australia roared out of the June doldrums to a new production record in July 2017
From one extreme (perhaps lowest ever in June 2017, on like-for-like) to the other (new record production) in the space of just one month for aggregate wind in South Australia