Some early comments made about the Generator Report Card
A summary of some comments that we’ve seen in the first few days of the Generator Report Card
Generator Report Card 2018
Generator Report Card released (on Friday 31st May 2019)
For those who have already pre-ordered their copy, this is how you can access – and for those who have not, but would like a copy, this is how to arrange this as well.
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…
Despite growing diversity of Large Solar farms (NEM-wide), large weather events still have major dampening effects
Sharing a trend of daily capacity factor across all Large Solar plant (post commissioning) in the NEM (preliminary analysis for our Generator Report Card).
A twenty year review of Marginal Loss Factors
Last week the AEMO released a draft of the Marginal Loss Factors (MLFs) that would apply to both generation and loads connected to the NEM. This page on the AEMO site links to more details. On that page, the AEMO…
The death* of “baseload” and rise of “cycling”
A quick article highlighting how the trend in aggregate number of unit starts, across the whole of the NEM, highlights the scale of one of the core underlying changes (and challenges) facing us in the NEM’s energy transition.
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)
Very preliminary review of Quantity and Quality of Rebids suggests some interesting details…
As part of the process of compilation of our Generator Report Card 2018, we’re delving into quite some detail into various aspects of generator bidding and re-bidding. Today I thought it might be useful to share some *very early and preliminary* observations that we’re starting to see when trending and categorising rebids.
AGL Investor Presentation reports on Portfolio Availability–we take a look for key Stations
AGL released its investor presentation yesterday – several people flagged the availability stats within the presentation (they knew we were looking at aspects of reliability for our Generator Report Card 2018). Hence I take a brief detour and have a quick look.
Extensive review of Units Off-Target, as part of Generator Report Card 2018
Some brief analysis, on the sidelines of our data gathering for the Generator Report Card 2018, looking at the changing incidence of Aggregate Absolute Off-Target for DUIDs across the NEM.
[UPDATED] Off-Target #4 – Disregard Targets – Lake Bonney in July 2018 (and possibly others)
Two examples where units (in these cases Semi-Scheduled) appeared to disregard dispatch targets.
Off-Target #3 = Forecasting Output Difficult – Macarthur WF on 11th August 2018
One example of where forecasting wind output seemed to be more difficult than we would hope it could be. Something to be further explored in the Generator Report Card.
Off-Target #2 = Unit failed to start – Braemar A3 on 29th August 2018
One example of a thermal unit failing to start. We will endeavour to explore how often this happens as part of the Generator Report Card 2018.
Off-Target #1 = Unit trip – Mt Piper Unit 2 on 24th October 2018
Highlighting one example of a unit trip. We expect we will find many in the process of compiling our Generator Report Card 2018 – the bigger question being whether the incidence is increasing (and, if so, to what extent).
Number crunching begins, for Generator Report Card 2018 (such as with transmission constraints)
Data compilation of the Generator Report Card is underway, given we’ve stepped over into 2019. Here’s a summary insight about the nature of coverage of bound constraint equations across all units in the NEM.
We’re preparing an extensive “Generator Report Card”, and would welcome discussion (with your pre-orders)
Following from (what we have seen as) an increase in diversity of concerns (and claims) about different aspects of generator performance, we’re leveraging our extensive data set and capabilities to have a deeper look, leading to the publication of a Generator Report Card with data to 31st December 2018. We’d welcome input from those who wish to pre-order their copies now at an initial low rate.