In the final part of this series, David Scott asks whether MPFR and FPP-Reg-FCAS Recovery have delivered on their goals, then uses the data to explore how AEMO might procure Regulation FCAS more dynamically and tune AGC to make better use of it.
In part three of this series, David Scott examines the first year of FPP-Reg-FCAS Recovery settlements, revealing which technologies paid and which were paid, and showing how semi-scheduled wind and solar farms, scheduled generators and batteries have each responded to the new incentives.
In part two of this series, David Scott dives into AEMO's 4-second FPP data to show how dispatch errors are classified as good or bad, how Regulation FCAS usage is measured, and how these calculations translate into FPP payments and Reg-FCAS Recovery charges.
In the first of this four-part series, David Scott explains how loosening frequency control in the NEM led to Mandatory Primary Frequency Response in 2020, and how that problem resurfaced as a settlements issue behind 2025's Frequency Performance Payments and Regulation FCAS reforms.
Guest author (Dr Julian de Hoog) provides some analysis of what has unfolded over the first year of operation of the new Frequency Performance Payments, (FPP) regime - with a particular focus on solar farms.
Today we’ve released the Generator Statistical Digest 2025 — the latest edition of our annual, unit-level reference report on generator performance across the NEM.
In Part 4 of this evolving Case Study, we take a closer look (using 4-second data) at the 12 x offending Semi-Scheduled units that appear to have played a large role in driving frequency south on late Thursday afternoon 16th October 2025, outside of the...
In this article we inspect power deviations from dispatched units that would have contributed to the frequency rise, and the deviations that would have contributed to the correction.
Back in July 2025 we saw the AEMO had released this ‘Technical Review of the NEM Frequency Control Landscape’ … but are only noting this here now.
Categories with a longer bar left of zero are losing more of their spot energy market revenue to regulation and PFR costs.
An initial review of payment and cost outcomes of the first 44 days of financial operation of the FPP arrangements.
Yesterday (Sunday 8th June 2025) saw the commencement of the new Frequency Performance Payments (a.k.a. FPP) method.
Taking a guess at frequency need to earn a positive causer-pays factor through self-forecast biasing appears at-best uncertain in the intervals we review.
Dan provides a brief write-up of his notes from attending the Australian Energy Storage Summit in Sydney last week.
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.
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.
We thank the Clean Energy Council for the opportunity to share insights into revenue trends, cost trends, and analysis of upcoming changes for units operating in the NEM.
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.
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.
This article reviews regulation FCAS costs in 2024, relative to maximum capacity, and uncovers drivers behind high non-scheduled unit costs.