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...
Energy Literacy
A collation of articles here pertaining to energy literacy.
Why capacity factor is an increasingly simplistic way to compare solar farm performance
Dan Lee explains why capacity factor could be becoming an increasingly less useful measure for comparing how different solar farms are performing and begins an exploration into some...
Analytical challenge (or beginner mistake!) – understanding the difference between a MW and a MWh
Reposting a portion of an article we published some years ago, to help readers understand the difference between a MW and a MWh.
AER published ‘Semi-Scheduled Generator Compliance Bulletin and Checklist’
A short article about the AER's publication (on 1st July 2022) of some updated information to help Semi-Scheduled generators understand their obligations.
On the fringes: the outer edges of the NEM remain the most prone to volatile MLFs
To mark the end of the financial year, Dan Lee writes this explainer about MLFs and gives some examples of noticeable long-term MLF trends within the NEM.
Two alternate theories of why capacity was withdrawn
Second (linked) article this evening, spelling out the two theories we're aware of with respect to why some participants might have withdrawn capacity from the NEMDE dispatch/pricing run...
Quick review of bids – looking back 16 days over APC and Market Suspension
With Market Suspension (just) behind us, in this weekend article we take a look over the past 16 days to see how volumes offered to the market from...
Pricing and dispatch during market suspension
Marcelle explores how settlement prices are set and how dispatch is operating during the current market suspension.
Observation 5/22 from GenInsights21 – the rise of ‘Just in Time’
Broader discussions about the '2022 Energy Crisis', and the specific discussion this afternoon for the EUAA Electricity Committee prompted us to publish (in full) Key Observation #5 of...
Interconnector constraints and limits–an explainer, and a few traps
Limits on interconnectors play a key role in setting regional prices in the NEM. Marcelle finds a number of traps when interpreting the market data.
Explaining dispatch (and price setting) regarding Eraring Unit 2 on 30th May 2022
A question on Twitter from Benny Beatts (about dispatch of Origin's Eraring unit 2 on Monday 30th May) illustrates why price setting is not as simple as adding...
Who gets to run when everyone bids the same? A crash course in disorderly bidding and tie-breaking
Marcelle explores the little-understood concept in NEM dispatch of the tie-break principle, using the new 'Constraint Dashboard' widget in ez2view.
Observations of differences in system frequency in the Mainland NEM (comparing 2019 to 2021)
One of the many data sets being crunched as part of our analytical efforts underpinning the development of 'GenInsights21' is system frequency. In this short article today, we...
Using the GSD2020 to explore operating patterns across generation types
With the release of the Generator Statistical Digest 2020, Marcelle Gannon takes a look at how it can be useful for identifying and exploring different patterns of generation.
PPAs aren’t as easy as they used to be!
This is the fourth of a short series of video snippets extracted from the 17th September 2020 presentation by Marcelle Gannon and Jonathon Dyson for the Clean Energy...
How does a wind or solar farm make money?
This is the third of a short series of video snippets extracted from the 17th September 2020 presentation by Marcelle Gannon and Jonathon Dyson for the Clean Energy...
Constraint Case Study Followup – Early outcomes of the new “X5 constraint”
On 25th November, guest author Allan O'Neil examined the 'X5 Constraint'. Two weeks of operation have passed, so now Allan reviews some of what's happened.
Conformance and compliance–what’s the difference?
This is the second of a short series of video snippets extracted from the 17th September 2020 presentation by Marcelle Gannon and Jonathon Dyson for the Clean Energy...
Do you know your obligations as a Semi-Scheduled Generator?
This is the first of a short series of video snippets extracted from the 17th September 2020 presentation by Marcelle Gannon and Jonathon Dyson for the Clean Energy...
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)...