Mainland Frequency wanders south early Friday afternoon 7th November 2025
A quick snapshot at 13:56 (NEM time) on Friday 7th November 2025 of our live updating frequency monitor, with frequency having wandered south:.
All Posts
(First ever?) forecast MSL warnings issued for South Australia for the coming week
Adding to the distractions, more alerts from ez2view have drawn our attention to a series of Market Notices warning of forecast Minimum System Load (a.k.a. MSL) conditions for South Australia in the coming days.
A quick look at ‘Dispatch Error’ on Thursday 6th November 2025, in conjunction with the Frequency Spike
Today, we have the advantage of ‘next day public’ data, so are able to peel some more layers of the onion (in this article 'Dispatch Error') - with respect to the significant Frequency Spike...
24 GW in 24 months, a race against time for the NEM
Following his presentation at All-Energy in Melbourne last week, David Dixon reports on the state of the NEM's ambition to reach 82% renewables by 2030.
A quick look at some of the market dynamics around the NEM during this afternoon’s frequency episode
This afternoon we saw mainland frequency briefly step above its normal operating band for approximately 20 minutes — potentially the result of a data glitch. In this quick piece, we unpack some market dynamics...
Specifics of the frequency excursion (well outside the NOFB) on Thursday 6th November 2025
In the first hasty article about today's (Thu 6th Nov 2025) frequency spike, we see it quickly went past the NOFB. So, in this article, we look at how far ...
‘Market Demand’ in South Australia drops by 216MW (or 21%) on Thursday afternoon 6th November 2025
Worth recording this other ez2view ‘Notification’ widget alert received at 14:11 (NEM time) on Thursday 6th November 2025 to mark a large-size drop in ‘Market Demand’ in South Australia.
Was that a data glitch that saw lunchtime ‘Market Demand’ ramp in Victoria by 1,812MW?
Given the large ramp in frequency around midday Thu 6th Nov 2025, coincident with a large apparent ramp in 'Market Demand' in Victoria, we suspect a data glitch.
Major spike in mainland frequency, on Thursday 6th November 2025
A short note with this snapshot from our live frequency reading over the past hour showing a spike well outside of the Normal Operating Frequency Band on Thursday 6th November 2025
AEMO released its first (redacted) ‘Thermal Audit’ Report on Wednesday 5th November 2025
On Wed 5th November 2025 the AEMO has released its first ‘Thermal Audit’ (redacted) Report, which provides 'a review of the flexibility and capability of the thermal generation fleet'
Guest Authored Posts
24 GW in 24 months, a race against time for the NEM
Following his presentation at All-Energy in Melbourne last week, David Dixon reports on the state of the NEM's ambition to reach 82% renewables by 2030.
The implications of the Solar Sharer Offer (SSO) and Default Market Offer (DMO) review outcome on energy sellers
In this guest-authored article, Connor James explains the upcoming changes to the DMO, including the much publicised Solar Sharer Offer (SSO), and potential implications for energy sellers in NSW, SEQ, and SA.
Detailed Analysis
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 of our recently released GSD2024.
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.
New FCAS resources dominate enabled levels in 2024
Using the latest GSD – GSD2024 – we take the opportunity to reflect on FCAS enablement and how enabled levels are changing between technology types.
Keeping up with the curtailment 2024: A little? too much? or much ado about nothing?
Drawing from our freshly released GSD2024, Dan provides some deeper insights into curtailment in the NEM, beyond the headline totals that were a topic of much online discussion earlier this week.
The GSD2024 (Generator Statistical Digest 2024) is released
It's Wednesday 5th February 2025, and we* are pleased to release the GSD2024 … following a focused effort across both teams over the period since the changeover from 2024 into 2025. Some details here,...
Interconnector intricacies: double and triple auto-clamping of pesky negative residues
Dan looks at some recent and peculiar auto-clamping behaviour of interconnectors, and walks through the market arrangements causing these occurrences.
A quick review of Queensland bidding over recent days (incl Wed 22nd Jan 2025)
Whilst we're waiting to see where 'Market Demand' lands for Friday 24th January 2025 (we might report that later), I was curious in terms of supply-side performance of units over the past 4 days...
Very fast FCAS, 2024 in review
A 2024 review of the trend in the very fast FCAS services captures enablements, availabilities and costs.