Don’t Forget About FCAS!
Guest author, Allan O'Neil, takes a look at what's happened in the (islanded) market for FCAS services in South Australia over the past two weeks with Heywood out of service. He notes: "generators in...
South Australia
January 31 Followup – How did the lights stay on in South Australia?
Guest author, Allan O'Neil delves further into understanding what happened in response to the transmission tower failures on 31st January 2020 that sent system frequency in South Australia and led to a large reversal...
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 in the NEM, I've identified a...
A further look at Thursday Jan 30th
Guest author, Allan O'Neil does a masterful job with limited time in reviewing some of the goings-on in the NEM (particularly VIC and SA) on Thursday 30th January 2020
Thursday 30th January 2020 sees demand reach 34,257MW and LOR2 notice issued for both VIC and SA
A brief overview of a stressful afternoon/evening in the NEM, where a confluence of events (heatwave-driven high demand, low wind, coal unit trip, etc...) drive LOR2 low reserve condition notice in both VIC and...
What is the RRO and why has the South Australian Energy Minister just triggered it?
Perhaps missed amongst all the bushfire-related action in the NEM, the SA Minister for Energy last week initiated the Retailer Reliability Obligation. Guest author Allan O’Neil tries to come to grips with what this...
Not-So-Quick review of price spike in South Australian region yesterday (Thu 19th Dec) evening
Took 2-3 times longer than planned (as there were a few different interesting observations that came out) but here is our initial - and perhaps only! - review of what happened in South Australia...
Exploring AEMO’s demand forecast “error” for Saturday 26th October 2019
Four weeks ago, we observed a significant discrepancy between AEMO's forecast for (what would have been) a record low point for Scheduled Demand in South Australia and what actually eventuated. We've now had time...
3rd Case Study – Tailem Bend Solar Farm in SA Region on Wednesday 6th November 2019
Third case study in a growing series - on this occasion looking at the (extreme - and possibly excessive?) lengths taken by Tailem Bend Solar Farm to avoid being dispatched at times of negative...
South Australia experiences lowest (non System Black) Scheduled Demand in at least 21 years
Lowest point seen today since the start of the NEM (excluding the SA System Black) for the South Australian region.
AEMO forecasts new “lowest ever” demand today in South Australia – but misses by 200MW
A quick look at what would have been a new "lowest ever" point for SA Scheduled Demand today at 12;30 ... if the AEMO forecast had held to be valid.
‘Duck Curve’ delivers declining Minimum Demand levels in South Australia
An email alert from NEMwatch (noting Scheduled Demand under 500MW in South Australia today) distracts us, and prompts us to dig a little deeper at the longer-term trend.
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 of the analysis of aggregate levels...
A (Much) Deeper Dive into Friday March 1 2019
Guest author, Allan O'Neil, drills into considerable depth to understand, and clearly explain, some of what happened during a volatile period in the VIC and SA regions on Friday 1st March 2019
Price volatility in VIC and SA on Friday 1st March
Some quick notes about the volatility seen in the NEM on Friday 1st March 2019 - a hot day in Victoria and South Australia, the first day of Autumn.
Lessons Learnt from Amber’s first summer of Spot Exposure in the NEM
Now that summer 2018-19 has passed, we can reflect on our experiences as a new entrant energy services company facilitating spot exposure for residential energy users - and hence expanding the scope for Demand...
It’s heating up, in Victoria and South Australia for Friday 1st March
An AEMO Market Notice about "Generator Recall" for Friday's forecast hot weather in South Australia and Victoria prompts a quick look at what's changed in the forecast that would prompt this action.
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 and Victorian regions of the NEM.
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 heatwave that has afflicted central Australia...
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.