In what seems to be a repeat of what happened last week Thursday 6th November 2025, some strange (and large) changes in 'Market Demand in Victoria appear to have driven a frequency excursion on...
On Friday afternoon we asked the question ‘What’s up with Waratah BESS (unplanned outage till 3rd May 2026)?’. It was great to see (on Monday evening) Angela MacDonald-Smith answer some of these questions in...
Taking a quick look - after our ez2view ‘Notification’ widget triggered an alert for what appears to be Callide C4 tripping from close to full load (Sunday 9th November 2025 at 21:26 NEM time)
Another in the series about Waratah BESS, we have a look at the unit's bids and operations over a 20-day time-range to midnight ending Saturday 8th November 2025.
In the next in the series about Waratah BESS, we have a look at a 9-day time-range to midnight ending Saturday 18th October 2025 via the ‘Bids & Offers’ widget in ez2view.
Relevant to today's questions, we belatedly note now that it was back on Friday 29th August 2025 that the AER published its PASA Compliance Bulletin and Checklist.
Almost exactly 3 months ago we posted a ~12 month chronological record of the history of Waratah BESS. Due to observations today (and questions and conversations leading from them) it was worthwhile to update...
It’s probably worth (also) recording an event that happened later in the afternoon on Thursday 6th November 2025 - some sizeable cycles in Market Demand in South Australia
Today we see that, for the WTAHB1 unit in the MT PASA DUID Availability data set, there's now an unplanned outage for Waratah BESS extending well off the page.
A quick snapshot at 13:56 (NEM time) on Friday 7th November 2025 of our live updating frequency monitor, with frequency having wandered south:.
Allan O'Neil unpacks a proposal under consideration by the AEMC to apply “runway” cost allocation to contingency FCAS, explaining how this could materially change who pays for frequency security in the NEM.
Anthony Cornelius from WeatherWatch explains the climate drivers behind Southeast Queensland’s unusually intense 2025 hail season — context that matters for those tracking how extreme weather is evolving and influencing the energy market.
In the fourth instalment of this ongoing case study, Dan Lee maps the locations and contributions of the semi-scheduled units that contributed to the +861MW Aggregate Raw Off-Target that occurred on the afternoon of...
In Part 3 of this Case Study, we look at the source of the Dispatch Interval Availability forecasts for these units at 17:05 on 27th October 2022 (i.e. Self-Forecast or something else, incl AWEFS/ASEFS).
Dan outlines why capacity factor is becoming an increasingly blunt metric for comparing unit performance, and begins unpacking the technical, operational, and commercial factors that need to be considered when assessing generator performance.
In Part 1 of this Case Study, we start to look at the large collective under-performance across all Semi-Scheduled units (i.e. Wind and Large Solar) at 17:05 on 27th October 2022. More to come...
This second excerpt from GenInsights 2022 Q4 Update highlights some of what's seen in terms of the performance of coal units.
Dan Lee tracks the demand forecasts against the actual outcome in QLD last Friday afternoon. The final result was as much as ∼1,000MW lower than the maximum forecast of demand published by the AEMO,...
Following a focused effort over the past two months, we've released the updated statistical record of operations in Australia's National Electricity Market ... the Generator Statistical Digest 2022 (GSD2022)
In light of recent events, Dan Lee does some digging to find historical incidences of islandings and transmission tower failures.