A timely reminder from the BOM of why ‘Apparent Temperature’ can be significantly higher than ‘Actual Temperature’ … such as across QLD on Saturday 27th Jan 2024 (and also Mon 22nd Jan 2024).
Read MoreThe third and final part of this series of articles from Greg Williams about opportunity costs in electricity markets – this time narrowing in on policy implications.
In the second part of this three part series, Greg Williams explains how fuel cost scarcity, inflexibilities, opportunity costs and other factors affects generator bids/offers.
Guest author, Greg Williams provides the first part of a three-parter about costs in the NEM. In part one here he explains modelling opportunity costs and the value of ‘the next best alternative’.
It is indispensable to understand how the semi-scheduled unit availability gets produced to optimally manage the critical inputs and comprehend dispatch outcomes. This article explains the key inputs and processes, focusing on the dispatch timeframe.
Inertia is an important concept to understand as the technology mix in the NEM evolves during the energy transition. In this article, Jonathon Dyson talks about the importance of inertia and highlights an example of a specific incident where we observed relatively low levels of inertia in the NEM.
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 price outcomes in the NEM
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 of the factors in play when trying to conduct more comprehensive analysis into generator performance.
Reposting a portion of an article we published some years ago, to help readers understand the difference between a MW and a MWh.
A short article about the AER’s publication (on 1st July 2022) of some updated information to help Semi-Scheduled generators understand their obligations.
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.
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article this evening, spelling out the two theories we’re aware of with respect to why some participants might have withdrawn capacity from the NEMDE dispatch/pricing run in June 2022 – leading to the AEMO Suspending the Market.
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 the two types of plant have varied … and the prices they are offered at. The question is asked … why did those DUIDs withdraw capacity from the NEMDE dispatch and pricing run?
Marcelle explores how settlement prices are set and how dispatch is operating during the current market suspension.
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 22 of our GenInsights21 report here today.
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.
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 up bids that are dispatched.
Marcelle explores the little-understood concept in NEM dispatch of the tie-break principle, using the new ‘Constraint Dashboard’ widget in ez2view.
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.
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 Council entitled ‘Maximising Profitability in the NEM’ for Wind Farms.