Some thoughts from another guest author, Greg Denton, about the current rule change proposal “Bidding in Good Faith” being assessed by the AEMC.
Search Results for 5/30 issue
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.
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 that contributed.
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 (yet to start) that will do nothing to address negative prices.
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 battery during this period of market volatility.
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 explore… including wondering whether it would have been expected in advance.
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 from Target. This Case study looks at April 2016, which is also 3 years after the first 3 case studies.
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 prices and dynamic bidding)
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1st February 2020 (something that alarmed me, and resulted in AEMO directing a participant to make capacity – just withdrawn – available again).
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…
A quick 2nd article today looking at how Reserve Trader was dispatched (and a couple other complexities)
Some of this content was originally posted in this article on 8th November 2019 “3rd Case Study – Tailem Bend Solar Farm in SA Region on Wednesday 6th November 2019”…
Third case study in a growing series – on this occasion looking at the (extreme – and possibly excessive?) lengths taken by Tailem Bend Solar Farm to avoid being dispatched at times of negative spot prices in South Australia. This analysis is specifically focused on Wednesday 6th November 2019.
From the start of the NEM (13th December 1998) through until 30th June 2021, the NEM has operated with 5 minute dispatch and 30-minute settlement. As a result of a…
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 11:30 and oscillating for the afternoon
A look at last Friday’s short sharp price spike in Queensland and why it led to negative settlement residues on the interconnection with NSW
An animated walk through 19 hours of Saturday 14th January 2017 in the Queensland region of the National Electricity Market – a day we dubbed “sizzling Saturday” not least because of extreme price volatility
Hot weather drives Queensland demand higher than 9,000MW for the first time this summer – even with many people still out on holidays…
NEM-wide demand exceeds 32,000MW for the first time this summer (so 2,000MW higher than the previous summer level, already). A volatile day in pictures…
Some ideas that I have been puzzling over – about the overlaps and contradictions between 3 rule changes under consideration at the AEMC currently
1) The Demand Response Mechanism (better known as the Negawatt buyback mechanism)
2) The Bidding in Good Faith deliberation
3) The Requirement for Price-Responsive (large) Demand to bid into central dispatch