NEMMCO final report about the 5/30 issue published in February 2003
A quick look back at the NEMMCO final report from 2003 about the '5/30 issue'
Search Results for 5/30 issue
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.
Is the real issue related to 5 minute dispatch and 30 minute settlement?
Some thoughts from another guest author, Greg Denton, about the current rule change proposal "Bidding in Good Faith" being assessed by the AEMC.
Yo-yo pricing in NSW today, and in QLD
Some 'interesting' price outcomes seen today in NSW and QLD.
A first view of bids under Five Minute Settlement
It was too tempting to take some time today to look back on the first fully 5-minute bids from Friday 1st October (the start of Five Minute Settlement) to see how much has changed.
Price volatility in the QLD region on Saturday 3rd July 2021
A rainy Saturday morning reminds us the price volatility for Q2 in QLD has not totally gone away ... with elevated prices for ENERGY and also Contingency FCAS (Raise 6 second and Raise 60...
Looking back at a Q2 2021 period that’s been anything but boring
Now making it 5 out of the past 6 years, we return to the analysis of electricity (spot and futures) pricing patterns for Q2 periods across the NEM regions ... and also in Western...
A Second Serving of the Q2 Elephant
For a second portion of Q2 “elephant eating”, I’ll look in some detail at the dynamics of an early instance of spot price volatility in Queensland, because many drivers turn out to be similar...
More persistent spot price volatility in the QLD region on Tuesday morning, 15th June 2021
Morning spot price volatility in the QLD region persists further into the morning (Tue 15th June) than has become expected.
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.
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...
AGL Energy announces $2.6b impairment … of which $1.9b for legacy wind farm off-take agreements
Today AGL Energy announces a big impairment ... with a big chunk related to long-term wind offtake agreements which AGL entered into between 2006 and 2012.
More price volatility in (QLD and) NSW on Wednesday 16th December 2020
Second day in a row the price spikes in the NSW region ... higher and longer than yesterday. Low aggregate production from Wind and Large Solar across NSW today was clearly one other factor...
Making demand response work with negative prices
A recent development over in the WEM (paying energy users to consume, when there's too much solar and wind) highlights the lack of foresight in the NEM ... where we've implemented a significant reform...
Batteries vs. peaking plants – a case study from 13 October
UQ's Andrew Wilson pens a case study on the market events that occured on Tuesday the 13th of October in the QLD region, in which he examines the relative performance of UQ's 1.1MW behind-the-meter...
Case Study Part 3 – digging still deeper, about what happened in QLD on Tuesday 13th October 2020
In part 3 of this expanding Case Study of the unexpected price spike on Tuesday 13th Oct, linked to a large & sudden drop in output across 10 solar farms, we dig deeper to...
Case Study of 03:25 on Tuesday 5th April 2016 (aggregate Raw Off-Target +359MW for Semi-Scheduled units)
After publishing three Case Studies on Saturday, this 4th Case Study in a long series is much more complex - with 8 different Semi-Scheduled Wind Farm units across VIC and SA exhibiting significant deviations...
Observing Easter Saturday, a little belatedly
Guest author, Allan O'Neil, invests some time to explore a number of different aspects of Easter Saturday (11th April 2020), each noteworthy in their own right (including low demand, high percentage share renewables, negative...
Out of the blue, another LOR2 – NSW region on Saturday 1st February 2020
With the benefit of more data available today, can piece together why there was the sudden drop into LOR2 territory on Saturday 1st February 2020 (something that alarmed me, and resulted in AEMO directing...
Price Energy Harvest
The term ‘Price Energy Harvest’ is one that we coined and applied in the Generator Statistical Digest 2019. (A) Why is the ‘Price Energy Harvest’ important? The NEM is perhaps the most volatile commodity market...