Articles by Paul McArdle


A page for each DUID in (Part 3 of) the Generator Report Card

Worth sharing the level of detail we’re going to, in Part 3 of the Generator Report Card (5 parts in total), where we have assembled millions of data points into a single page summarizing the last 10 years of performance of a particular generation unit. There’s a page for each operational unit (327 in total).


Degradation of performance at high temperatures

We’re taking a much, much deeper dive into generator performance at high temperatures (for all DUIDs operational across the NEM) to see how each one of them, individually, is affected by high temperatures. Guess which one this “mystery DUID” is and we’d look forward to providing some form of prize…










A brief look back at reactions to negative prices in the 14:30 trading period on Friday 1st March 2019

Yesterday I noted what appeared to be trips of two solar farms – Gannawarra and Karadoc – within a single dispatch interval and coincident with a period of volatile prices. Also yesterday, Dylan McConnell flagged a drop in output at the brown coal plant around the same time, with some questions. With the benefit of access to yesterday’s bids, today I have a look at the 5 power stations (pending a broader review next week by guest author, Allan O’Neil).



A (preliminary) Intermediate Guide to How Prices are Set in the NEM

In the process of assembling a long-range data set on how much every single generator has contributed to the price of Energy in each Region of the NEM (which we’re doing for our Generator Report Card 2018) we’ve pulled some preliminary analysis together here of how many dispatch intervals since 1st January 2018 see the Price Setter files highlight instances of setting the price ranging:
from “Very Simple” (at Category 1)
… to “Very Complex” (at Category 5)