Frequency drop with trip of Callide C3 on Friday 4th April 2025
A quick record of unit trip at CPP3, and associated frequency drop, on Friday 4th April 2025.
All Posts
The growing NEM BESS fleet: Who is controlling all this capacity, anyway?
Matt Grover from Fluence shares insights into the NEM's growing big battery fleet and what it means for the market and their operators. This article follows on from...
What is the real size of Australian corporate demand for Renewable Energy?
Tristan Edis from Green Energy Markets explores the current state of voluntary corporate demand for renewable energy, amid signs that LGC prices have fallen to near-historic lows.
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).
Frequency excursion on Monday 31st March 2025
A very short article to note an apparent mainland frequency excursion (just prior to 17:00 NEM time on Monday 31st March 2025).
Three themes from the Energy Storage Summit 2025
Dan provides a brief write-up of his notes from attending the Australian Energy Storage Summit in Sydney last week.
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...
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...
How did Cyclone Alfred impact electricity demand?
By day-end on the Friday the 7th demand levels were down more than 40% in the Gold Coast. Other areas were also impacted.
Today’s presentation to CEC’s Market & Grid Directorate
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.
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.
Back to forecast LOR2 for NSW for this evening (Sunday 16th March 2025)
A quick note showing the re-emergence of forecast LOR2 with a climbing forecast for evening demand in NSW.
Evening volatility in NSW on Saturday 15th March 2025
A very short article with this snapshot from NEMwatch at 18:20 (NEM time) on Saturday 15th March 2025 to mark evening volatility in NSW
About the ‘S-HUBG’ and ‘S-HUWT’ constraint sets, and yesterday’s network outage on Yorke Peninsula
With ElectraNet's unplanned network outage on Fri 14th March 2025, a quick look at the ‘S-HUBG’ and 'S-HUWT' constraint sets
ElectraNet experienced multiple faults on the transmission network Friday 14th March 2025 impacting power supply to the Yorke Peninsula.
Early on Friday morning 14th March 2025, ElectraNet experienced an unplanned network outage - including the Hummocks - Bungama 132 kV line, and Hummocks - Waterloo 132 kV...
Sunday 16th March could be a stinker in NSW … including with sporadic forecasts of LOR2
An article on DTN (formerly Weatherzone) prompts a look at forecasts for NSW this Sunday 16th March 2025
Down to ~17,000 customers off supply in south-east Queensland (not forgetting northern NSW)
It’s Friday morning 14th March 2025 and a quick review at the Energex Outage finder shows that we’re down to ‘only’ ~17,000 customers off supply
Burst of volatility in NSW and QLD (and Actual LOR1) on Thursday 13th March 2025
A short note with a snapshot from NEMwatch at 17:40 (NEM time) on Thursday 13th March 2025 to mark some volatility.