Is the price right? A historical exploration into the NEM’s price cap
Dan dives into the history of the NEM’s market cap and explores how high-end prices contribute to regional settlement costs and cap payouts.
Market Reform
Submissions from the initial consultation of the Nelson Review made public
All public submissions from the initial consultation stage of the Nelson Review are now available on the DCCEEW website.
AEMC underway with review of the Centralised Negawatt Dispatch Mechanism (a.k.a. the WDRM), and consultation closed
Submissions at the AEMC already closed over a week ago, with respect to their review of WDRM. Here's some starting thoughts ...
Games that self-forecasters can* play (Part 1 – An Overview)
I've promised to write this article for some time, but a few recent events (and looming start of FPP) have caused me to publish this now.
AEMO publishes draft ‘Congestion Information Resource Guidelines’ – submissions due 19th May 2025
On Tuesday 15th April 2025, the AEMO published its draft report on 'Congestion Information Resource Guidelines', seeking feedback by Monday 19th May 2025.
AEMO published its HLIA for the ISF Implementation … and seeking input on draft ‘Security Enablement Procedures’
As the next steps in implementing the AEMC's ISF Reforms, the AEMO has published: (a) on 7th April a consultation; and (b) on 17th April a HLIA.
AEMO commenced a consultation on the Constraint Formulation Guidelines
On Monday 7th April, the AEMO commenced a consultation on the Constraint Formulation Guidelines - which touches on three different changes that some of our readers will find of interest.
AEMC draft determination, about ‘Allowing AEMO to accept cash as credit support’
A little over 2 weeks ago (on Thu 3rd April 2025) the AEMC made a draft determination on the rule change proposal by Delta Electricity to allow AEMO to accept cash as credit support.
Questions and concerns, about proposals to shift the ~23 second dead zone within the Dispatch Interval (ICF002)
5th article in a series, about the AEMO's ICF0002 initiative (and prior to tomorrow's EWCF Meeting) - to identify some questions and concerns.
There are actually several different ramp trajectories that are material to dispatch in the NEM
As promised in prior articles, here's an illustration of (some of the) different Ramp Trajectories considered in Dispatch within the NEM.
Why we have reservations about the possible solution AEMO has been considering (to date) in ICF002
4th article in a series, about the AEMO's ICF0002 initiative - clarifying 2 approaches might (possibly) be explored to resolve.
What’s the AEMO been considering, as a possible solution to the delayed receipt of Target?
3rd article in a series, about the AEMO's ICF0002 initiative - and a possible 'solution' being considered (but for which we have concerns).
What’s the problem(s) with dispatch targets arriving ~20 seconds into the Dispatch Interval?
2nd article in a series, about the AEMO's ICF0002 initiative (re problems with the ~20 second lag in receipt of Dispatch Target).
Challenges in ‘Time taken for Dispatch Targets to be made available to participants’ (ICF002)
1st article in a series, about the AEMO's ICF0002 initiative (specifically the content in EWCF meeting on 19th March 2024).
Two diagrams to help illustrate the changes coming with FPP (Frequency Performance Payments)
We've facilitated a number of articles on WattClarity relating to the looming FPP changes (now 10 weeks away). Here's two images I've drawn up to (hopefully) illustrate my understanding of what these changes represent.
Generator exposure to regulation costs under FPP
In his third article, Jack Fox uses the Non Financial Operation (NFO) data to take a look at some VRE units, and how they would have performed under FPP.
The top 10 batteries under FPP
In his second article, Jack Fox uses the Non Financial Operation (NFO) data to take a look specifically at batteries, and how they would have performed under FPP.
An initial look at Winners and Losers from Frequency Performance Payments (FPP)
In his first article, Jack Fox reports some initial observations from a review of the Non Financial Operations (NFO) data that's been published since Dec 2024.
Three headline observations, about the use of proxies for System Frequency in Frequency Control mechanisms
Various authors have shared articles about frequency, frequency control and Regulation FCAS in recent times (including 6 from Linton). Here's three things that jumped out to me in these pieces of analysis.
Comparing Frequency Measures (Frequency, FI, FM)
The faster-moving nature of the FM, with the introduction of FPP, removes predictability in the indicator for frequency performance.