How common are islandings and transmission tower failures in the NEM?
In light of recent events, Dan Lee does some digging to find historical incidences of islandings and transmission tower failures.
Articles by Dan Lee
Dan Lee first started at Global-Roam in June 2013. He has departed (and returned) for a couple of stints overseas in that time, but rejoined our team permanently in late 2019.
More recently, Dan's focus has been on growing his understanding of the market and developing his analytical capabilities. He is currently enrolled in the Master of Sustainable Energy program at the University of Queensland.
Who drove FCAS on the island
Close to $31.5M of revenue was generated in the FCAS markets in SA over the seven days that the region was frequency separated from the rest of the NEM. This follow-on from Allan O’Neil’s earlier article investigates this final figure.
Brief but sudden drop of ~1,740 MW of wind and solar generation across the NEM this afternoon Monday 5th December 2022
An email alert notified me of a sudden drop in wind and solar generation (primarily in VIC and SA) at around 3pm this afternoon.
AEMO release preliminary report into the trip of the South East – Tailem Bend 275 kV on 12 November 2022
Last week the AEMO released a preliminary report into the trip of the South East – Tailem Bend 275 kV line that caused SA to be islanded from the rest of the NEM for over a week.
AEMO releases ‘Engineering Roadmap to 100% Renewables’ report
Today the AEMO released a 101-page engineering framework report on the steps required to operate the NEM at 100% instataneous penetrations of renewables.
The Administered Price Cap has increased to $600/MWh as of today 1st December 2022
A rule change increasing the Administered Price Cap from $300/MWh to $600/MWh, submitted by Alinta Energy, has come into effect today.
Callide C3’s return to service pushed back to February 2023
QLD looks like it will be without Callide’s C3 unit until at least February 2023.
Administered Pricing ends for FCAS in SA on Saturday 26th November 2022
Administered Pricing has ended for FCAS in SA after roughly 12 days.
ElectraNet chief executive warns risks still to come as sunny weather forecast for Adelaide on Thursday
A quick look at rooftop solar PV forecasts after ElectraNet’s chief executive warns about overproduction of distributed energy generation later in the week.
A messy separation: a look at the frequency swings in SA during Saturday afternoon’s islanding event
Dan Lee takes a quick look at 5-second frequency data to show SA’s separation from the rest of the NEM and the ensuing frequency swings on late Saturday afternoon.
Administered Pricing begins for FCAS (Lower Reg) in SA at 12:50 on Monday 14th November 2022
An AEMO market notice published just now has alerted that Adminsited Pricing has been declared for FCAS in SA after the Cumulative Price Threshold for the Lower Reg commodity was hit.
What was the total cost of ‘keeping the lights on’ across the NEM in June?
Dan Lee provides some exploratory calculations in order to estimate the total cost of maintaining electricity supply throughout a very turbulent June.
Burst of extreme prices across the NEM on July 14th 2022
A short note about prices spikes occurring in the four mainland NEM regions simultaneously this evening.
RERT dispatched in QLD – at 17:00 on Tuesday 5th July 2022
RERT (Reserve Trader) dispatched in QLD.
Cloud cover and cold temperatures spark high prices in QLD on Monday morning 4th July 2022
A quick look into today’s high prices in QLD, and some of the contributing factors.
On the fringes: the outer edges of the NEM remain the most prone to volatile MLFs
To mark the end of the financial year, Dan Lee writes this explainer about MLFs and gives some examples of noticeable long-term MLF trends within the NEM.
AEMO releases 2022 Integrated System Plan (ISP)
A short note about the release of the final version of the AEMO’s 2022 ISP that was published this morning.
How much wholesale demand response was dispatched in last night’s supply crunch?
A look to see how far WDR has come since it was introduced in October, and to what extent the units registered under the mechanism are helping to alleviate supply-demand tightness during events like last night.
High prices being served up again in SA on Tuesday evening
After last night’s volatility in SA, sustained high prices have been on the menu again. With the SA spot price in quadruple digits for most of the past hour and half, hitting a peak of $9,941.06
Basslink goes offline, again
A short note about an unexpected Basslink outage that began yesterday morning.