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 ......
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Surprise LOR2 (Low Reserve Condition) forecast for QLD next Monday afternoon, 30th November 2020
Prompted by an SMS alert this evening, we take a look at the tight supply/demand balance currently forecast for the QLD region on Monday afternoon next week (30th...
Case Study – How to interpret a new NEM constraint and guess what it might do
Given the great interest in the new 'X5 constraint', guest author, Allan O'Neil, has invested some time to pick the new constraint equation to understand (and then explain)...
More pain ahead for non-synchronous units … a bigger ‘rhombus of regret’ in western NSW & VIC
From tomorrow (Fri 20th Nov) market participants in south-western NSW and north-western VIC will need to grapple with yet another transmission constraint seeking to 'constraint down' their output...
AEMC publishes draft rule change for Semi-Scheduled generators
Today (Thu 19th Nov 2020) the AEMC published a draft ruling following the AER request for a rule change relating to Semi-Scheduled generators ... which itself followed from...
An evolving perspective – forecast impacts of the South Australia short, sharp ‘Circuit Breaker’ COVID response
Some brief notes about the impact that South Australia's 'Stay at Home' order might have on demand in the region.
Price spikes in QLD region third day in a row (Tue 17th Nov 2020)
Third day in a row, and at exactly the same time as yesterday (Mon 17th Nov) the dispatch price in QLD spiked through the roof. Here's a quick...
NSW renewable energy plan seals death warrant for six gigawatts of coal
David Leitch and Ben Willacy of ITK Services provide analysis of the NSW Government's recently announced renewable energy plan.
Early blast of summer drives NSW and QLD prices through the roof
It's not officially summer, yet - but it sure seems like it is across QLD and NSW. High temperatures drive some prices spiking up to the Market Price...
What’s “Primary Frequency Response” and why does it matter anyway?
Paul McArdle recently drew my attention to a short Twitter thread started by David Osmond on the arcane topic of NEM system frequency behaviour: At Paul’s invitation...
Case Study Part 5 – Why did those constraint bind – in QLD on Tuesday 13th October 2020?
In part 5 of this expanding Case Study of the unexpected price spike on Tuesday 13th Oct, linked to a large & sudden drop in output across 10...
Low point for demand in Victoria drops still lower on Sunday 1st November 2020
The prior record for 'minimum demand' in Victoria seems to have only lasted 8 short weeks, with the level nudged still lower on a sunny Sunday 1st November...
AEMC proceeds to fast-track consideration of the AER’s semi-scheduled generator dispatch obligations rule change
A brief note to inform readers that the AEMC is fast-tracking consideration of the AER's Proposed Rule Change on Semi-Scheduled assets ... but also to reinforce our view...
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...
Brief note about NSW price spike on Friday 23rd October 2020
Winding down through Beer O’clock at the end of a long week with the team and the buzzing of my phone distracts to a few successive price spikes...
AEMO releases ‘Operational management of low demand in South Australia’
On Thursday 22nd October, the AEMO also released a short document titled ‘Operational management of low demand in South Australia'.
Case Study Part 4 – Who did What – in QLD on Tuesday 13th October 2020?
In part 4 of this expanding Case Study of the unexpected price spike on Tuesday 13th Oct, linked to a large & sudden drop in output across 10...
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...
Questions prompted by that chart from the ‘Renewable Integration Study’
Patricia Boyce examines a chart that was included in the AEMO's Renewable Integration Study, which depicted actual and modelled solar and wind generation output against underlying demand. She...
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...