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...
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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...
‘The Market’ means different timescales
From a longer article by guest author Stephen Wilson titled 'Does the NEM need to be redesigned?' we have extracted Stephen's reminder that 'The Market means different timescales'.
Does the NEM need to be redesigned?
Guest author Stephen Wilson chaired an 'ESIG Down Under' conference webinar on 'Designing the Energy Markets of the Future'. Whilst introducing the session, Stephen presented a diagram that...
Case Study Part 2 – did Rooftop PV kill Large Solar Farm output (and cause the price spike) in QLD on Tuesday 13th October 2020?
Based on some preliminary analysis of the Powerlink's 'Qdata' set (available in ez2view) we present our current hypothesis as to the sequence of the events yesterday in the...
The wholesale demand response train is approaching the platform
Considerations on how key aspects of the upcoming wholesale mechanism might dictate how much response capability will be realised once the mechanism goes live before Summer 2021-22
Case Study part 1 – Queensland price spikes to $15,000/MWh at 09:45 on Tuesday 13th October 2020 … coincident with many Large Solar Farms (tripping**)
Alerted to a price spike at 09:45 this morning in the QLD region, we discovered some reduction in load (spot-exposed Demand Response probably) and also a large collective...
Some are waking up to the shortcomings of current methods of support for ‘Anytime/Anywhere Energy’
A couple glimmers of hope spotted recently, that there might be some (belated) awareness that the current methods of support for 'anytime/anywhere energy' are not scalable, or sustainable.
The decline to zero continues… SA demand and whole-of-NEM both drop even lower on Sunday 11th October 2020
Records continue to tumble in the off-season, with the rise of rooftop PV. Both South Australia and Whole-of-NEM hit new low points Sun 11th October 2020.
Which state pays for interconnectors?
Ben Skinner from the Australian Energy Council examines how transmission is currently funded in the NEM.
Incomplete thoughts – potential risks to the NEM in relation to COVID
Only 52 days after I initially envisaged being able to have this article published, a couple things today have prompted me to post this drain-dump of concerns that...
Case Study of 16:55 on Monday 8th April 2019 (aggregate Raw Off-Target +318MW for Semi-Scheduled units)
This 20th Case Study (the other side of the weekend to the 19th Case Study) in the series investigates one dispatch interval showing extreme Aggregate Under-Performance across all...