What happened with System Frequency with the SA Islanding on Friday 31st January 2020?
Cautioning readers that I am a novice at reading frequency data in this manner, I take a first look at how the frequency in Melbourne and South Australia...
Headline Events
Some key events in the NEM that carried long-term implications
13 headline questions and observations following the long-term islanding, starting Friday 31st January 2020
In order to help us (internally) map out all the different threads to explore in terms of what happened on Friday 31st January 2020 on a remarkable day...
White knuckle ride across the NEM on Friday 31st January 2020 (extreme NEM-wide demand)
Today (Fri 31 January 2020) saw NEM-wide demand reach levels never seen before (excepting 29th January 2009). This was just the start of the white knuckle ride.
Buckle in folks, Friday afternoon/evening might be a bit bumpy
Published at 12:02, this is a view looking forward to the expected (very high) peak in electricity demand across the NEM this evening.
First look at South Australia islanded on Saturday evening, 16th Nov 2019
A first (and perhaps only - as this took longer than initially planned) walk through some of the interesting points of what happened yesterday (Sat 16th Nov 2019)...
Calculated level of inertia in the South Australian grid, supplied by synchronous generation plant
Last week's notable under-frequency load shedding in Great Britain following what appears to be the loss of two generation units in quick succession prompts me to publish some...
Two different storm warnings in South Australia – one literal, and one metaphorical
Coincidentally this week it seems to me that we're facing storm warnings on two different fronts - one literal (and much easier to prepare for), whilst the other...
Two points about the high demand & prices, and the load shedding, on Friday 25th January 2019
Two quick notes about what happened in Victoria on Friday 25th January 2019 following conversations with a number of people.
Looking backwards over the past 2 weeks in the NEM
Back at work this week and (with curiosity getting the better of me) I have another look at what happened last Thursday and Friday in the South Australian...
My first look at the highs, and lows, in Victoria and South Australia on Thursday 24th January 2019
A first look at some of the action seen in the southern parts of the NEM on Thursday 24th January 2019 as a result of the latest crazy...
AEMO dispatches Reserve Trader on Thursday 24th January as IRPM in VIC and SA plunges
A short post, prior to further analysis next week, to notify readers that Reserve Trader has been dispatched today.
Further analysis of the (very rare) double-islanding events of Saturday 25th August 2018
The multi-region islanding event on Saturday 25th August was a very rare event - perhaps the only one's that occurred in the history of the NEM. It has...
Taking a look at Saturday’s Islanding Event through 4 second SCADA data
Following on from Saturday's islanding event, we use our current interest in AEMO's 4-second SCADA data to prove a little more...
Both QLD and SA islanded from the rest of the NEM on Saturday 25th August 2018
Both the QNI and the Heywood interconnectors tripped around the same time on Saturday 25th August 2018 (not apparent at this time which one was first, and why),...
AEMC released Final Determination on Five Minute Settlement on 28th November 2017
A quick look back at the AEMC's Final Determination on Five Minute Settlement.
The Southern Annular Mode (SAM) contributes to recent wind drought
An explanation of how the Southern Annular Mode (SAM) contributed to the wind drought we observed recently on WattClarity.
Where’s the wind gone? NEM-wide wind farm operation lowest in 5 years (maybe ever, on like-for-like basis?)
A brief look, in the time available today, at a truly remarkable low point in aggregate wind farm output across the NEM through June 2017
The ‘Finkel Review’ released on 1st June 2017
A belated link to the Finkel Review.
Noteworthy analysis of the state-wide blackout across South Australia on 28th September 2016
A listing of key reports and analysis into the SA blackout of 28th September 2016.
Adding a Slice of Cheese
The South Australian Blackout of 28th September 2016 is not as simple as it looks.