Second big drop in ‘Market Demand’ in NSW on Wednesday 19th February 2025
About 150 minutes after the earlier (apparent) drop in NSW 'Market Demand' there's a second drop that's not quite so big, but still sizeable.
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The forgotten market and its critical role in Australia’s transition to clean energy
Anita, Lachlan, and Gilles from ERM Energetics share their thoughts on how financial electricity derivatives must evolve as the energy transition speeds up.
Callide B2 (apparent) trip early on Wednesday morning 19th February 2025
Whilst looking at system frequency, there was an apparent trip of the Callide B2 unit in the early hours of Wednesday morning 19th February 2025.
741MW (apparent?) drop in ‘Market Demand’ in NSW on Wednesday midday 19th February 2025
That alert in ‘Notifications’ widget in ez2view (looking at large change in 'Market Demand' in NSW) has triggered again at 11:51 (NEM time) on Wednesday 19th February 2025.
The state-of-charge for 2024: The highs and lows of the big battery boom
Following on from a similar review this time last year, Dan provides an updated look at the economics and performances within the NEM's big battery fleet, making use...
Large instantaneous jump in ‘Market Demand’ in NSW on Tuesday afternoon 18th February 2025
A relatively large jump in 'Market Demand' in the NSW region from 16:05 to 16:10 on Tuesday 18th February 2025 caught our attention.
A look at curtailment through the GSD2024
After reviewing the latest version of our Generator Statistical Digest (GSD), David Leitch shares his top insights about VRE curtailment across the NEM in 2024.
Reviewing LGC creation at Codrington Wind Farm over ~24 years
With the news that Codrington Wind Farm (one of the first in the NEM) is to be closed, we take a quick look at 24 years of history.
Curtailment of Large Solar reaches ~72% (NEM-wide) on Sunday 16th February 2025
Given the situation that unfolded on Sunday 16th February 2025, we take a look at curtailment of Large Solar production (not quite a record).
Indicators of solar farm performance with GSD2024
Seeking indications of possible performance at solar sites announced in the CIS tender of 2024, we inspect statistics of nearby solar farms using the GSD2024.
Guest Authored Posts
An initial look at Winners and Losers from Frequency Performance Payments (FPP)
In his first guest authored article on WattClarity, Jack Fox reports some initial observations from a review of the Non Financial Obligation (NFO) data that's been published since
Hot chips, algorithms and electricity markets
Declan Kelly thinks through and discusses competition issues that could arise from the increasing proliferation of auto-bidding software by big batteries in the NEM - and suggests some...
Detailed Analysis
Dan Lee’s reflections about ‘the year that was in 2023’ via the WattClarity insight service
Yesterday (Thu 22nd Dec 2023), Dan Lee posted a summary of WattClarity service through 2023 on our company website. Today I'm sharing that with WattClarity readers here.
Case Study (Part 2) of Low % VRE NEM-wide on 3rd and 4th July 2023
The second part of an ongoing case study examining two successive days of low VRE generation in early July 2023. This part examines IRPM, earlier forecasts of available...
Case Study (part 1) of low % VRE NEM-wide on 3rd and 4th July 2023
A brief article as a first Case Study looking at Mon 3rd and Tue 4th July 2023, in conjunction with the compilation of GenInsights Quarterly Updates for 2023...
Demand Response as Market Participant: Square Peg in Round Hole?
A year ago we reviewed the market outcomes of wholesale demand response (WDR) in the NEM. It’s been 2 years now, providing a new milestone from which to...
Long or short on storage? A look into price signals for duration
Dan Lee looks into utility-scale storage in Queensland - including the need for megawatt-hours, the state of the build-out, and the current market price signal for duration.
GenInsights Quarterly Update for Q2 2023 released
A quick note to mark the the release of GenInsights Quarterly Update for Q2 2023 last week.
What inputs and processes determine a semi-scheduled unit’s availability
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...
Another research paper into solar and wind droughts in Australia
A quick note at another research paper (focused on an area of interest to us) that's crossed our field of vision.