RERT dispatched in NSW this afternoon, plus other things (at 15:55)
A quick 2nd article today looking at how Reserve Trader was dispatched (and a couple other complexities)
Search Results for 5/30 issue
(Generators) avoiding negative prices
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” – but will be updated and extended here as time…
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.
Five Minute Settlement (from 1st October 2021)
From the start of the NEM (13th December 1998) through until 30th September 2021, the NEM operated with 5 minute dispatch and 30-minute settlement. However from 00:00 on Friday morning, 1st October 2021, the NEM transitioned into Five Minute Settlement….
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 11:30 and oscillating for the afternoon
Initial Review: $14,000/MWh Spike in Qld, Fri 27 Jan 2017
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
A more forensic look at Queensland Price Volatility on Saturday 14th January 2017
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
Queensland electricity demand surpasses 9000MW in heatwave
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 breaks 32,000MW – highest so far this summer
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…
Puzzling through three rule change requests
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
How prices will be set, under the new “Demand Response Mechanism”
Some worked examples of how several forms of Demand Response (including the proposed new Demand Response Mechanism) might impact wholesale prices, and participant positions.
Wholesale Demand Response in the NEM – One year on by the numbers
Casting a look over wholesale demand response in the NEM, one year on, how has participation grown and the capability been used?
*Was* solar production disappointingly low through (parts of) Q2 2022 … and, if so, why?
It’s taken longer than expected – but today I’ve posted this article that goes some way to answering the question ‘to what extent was solar production disappointing through periods of Q2 2022?’
Index of Significant Events in the NEM
This page contains an index of significant events that have occurred through the history of the NEM, in reverse chronological order, complete with links to additional documentation and discussion where available. This record will evolve over time through future iterations,…
Price Volatility (now a regular evening event for QLD and NSW) on Tuesday 1st June kicked along by Darling Downs outage.
A number of things happened late today – with the trip of DDPS1 (only declare credible contingency earlier in the day) giving more impetus to spot price volatility in the QLD and NSW regions already facing tight supply/demand following the Callide catastrophe and LOR1 in NSW.
Can batteries replace ‘cap’ contracts to hedge customer load? A case study from Q1 2020
Guest author, Andrew Wilson, presents a case study of the performance and results from the University of Queensland’s 1.1MW Tesla Powerpack system during Q1 2020.
A (Much) Deeper Dive into Friday March 1 2019
Guest author, Allan O’Neil, drills into considerable depth to understand, and clearly explain, some of what happened during a volatile period in the VIC and SA regions on Friday 1st March 2019
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
A sudden series of SA spikes
Tight import limits on the Heywood interconnector and a lull in wind output saw price volatility return to South Australia earlier this week
Overview: Queensland volatility 1-2 Feb 2017
A volatile couple of days in Queensland, with demand response evident