(Early!) winter evening volatility returns to QLD and NSW on Wednesday 24th May 2023
A quick article to capture volatility in QLD and NSW on Wednesday evening 24th May 2023.
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IRPM drops below 15% on Tuesday 23rd May 2023
A short article this evening noting IRPM has dropped below 15% on a NEM-wide basis (a tight supply-demand balance).
AEMO’s MMS 5.2, ez2view v9.7, Semi-Scheduled MaxAvail in the Bid, and a self-forecasting example
Today (Tue 23rd May) is the go-live date for AEMO's EMMS v5.2 - which will contain new data for some market enhancements. Here's a quick look at where this first change will appear in...
Evening volatility in QLD and NSW on Saturday 20th May 2023
A short article to mark an evening burst of volatility in QLD and NSW, with VIC1-NSW1 again constrained.
Brief burst of volatility in QLD and NSW on Wednesday 17th May 2023
A short article to record evening price volatility in NSW and QLD on Wednesday 17th May 2023
Too Early to Say?
Guest author, Allan O'Neil, publishes some analysis for WattClarity on price and generation mix changes apparent in the NEM coincident with (but not wholly caused by) the closure of the last remaining units at...
We’re not building enough replacement dispatchable capacity
With completion of GenInsights Quarterly Update for Q1 2023 approaching, and following some conversations recently (and probably this week at EUAA Conference) here are two charts looking backwards just at fully dispatchable plant that...
How dispatch works … it’s much more than just a bid stack
New guest author, Ryan Esplin progressively builds a more precise model of the NEMDE dispatch process to illustrate why the stylised 'Merit Order' bid stack model is increasingly not enough to explain dispatch and...
NEMwide IRPM drops below 15% (at 17:55) on Wednesday 10th May 2023
The IRPM has dropped below 15% across the NEM on Wednesday 10th May 2023 ... first time this has happened since the stressful winter 2022.
Renewable curtailment – forced and not quite so forced
Inspired by the recent article by Tristan Edis (who referenced the GSD2022 in analysis of curtailment of some wind and solar farms), Allan O'Neil follows on with more analysis of the two main types...
Guest Authored Posts
The challenge of imperfect foresight: Storage operation in a highly renewable NEM
Josh Boegheim from Powerlink discusses the limitations of perfect foresight assumptions for system planning—and shares results from a recent study that simulated energy storage dispatch using deterministic and stochastic forecasting approaches.
The growing NEM BESS fleet: Who is controlling all this capacity, anyway?
Matt Grover from Fluence shares insights into the NEM's growing big battery fleet and what it means for the market and their operators. This article follows on from his keynote at the ESS two...
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