Some key events in the NEM that carried long-term implications
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.
Yesterday’s note from ElectraNet prompted this initial summary of some of what we’ve seen happen with the SA islanding event over the last 12 days.
James Martin from SwitchDin, provides an overview of the state of distributed energy management, and how it relates to last week’s events in SA.
On Saturday evening 19th November 2022 the Heywood interconnector returned to service following temporary repairs to the tower damaged on Saturday 12th November.
A short article to record the curtailment of rooftop PV underway in South Australia on Saturday 19th November 2022.
In this article we explore the impacts on wind power generation as the storms passed through, in the leadup to the transmission line trip at 16:39 (NEM time, reflected in the market by the 16:45 interval) on 12 November 2022.
Rounding out the working week, there’s *currently* no forecast for curtailment of rooftop PV in SA on Friday 18th Nov (but clarifying it did happen on Monday 14th Nov 2022).
In GenInsights Quarterly Update for Q3 2022 we included an Appendix exploring what we could observe ‘One Year on from Five Minute Settlement’. In this article we share a small slice of what we learnt…
With low wind production in South Australia on Thursday 17th November, limited import capability and curtailment of rooftop PV, the price has spiked on Thursday afternoon
Once again this week we see (today, Thursday 17th November 2022) the AEMO taking action to curtail rooftop PV in South Australia to keep the system stable whilst islanded.
Same as yesterday, today (Wed 16th Nov 2022) sees curtailment of distributed PV occurring in South Australia.
A quick look at rooftop solar PV forecasts after ElectraNet’s chief executive warns about overproduction of distributed energy generation later in the week.
Ant Sharwood of Weatherzone provides some insights into the intensity of last weekend’s thunderstorms in South Australia, which had severe impacts on the state’s transmission network.
One of the side-effects of the transmission issues in South Australia and Tasmania is a (much) more complex dispatch process – with NEMDE file creation times slowing down as a result.
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.
On Tuesday 15th November 2022 we see curtailment of distributed PV has been underway since this morning.
Fifth article for Monday 14th November 2022 … taking a quick initial look at the sequence of events immediately around the islanding in South Australia on Saturday 12th November 2022.
Guest author, Allan O’Neil, contributes his first article with respect to the islanding event in South Australia of November 2022 (in this article taking a look at FCAS market outcomes in South Australia).
A weekend of prolific thunderstorms had a significant impact on the NEM. Ben Domensino of Weatherzone reports on the 4.2 million+ lightning strikes that were detected across the country on Saturday and Sunday.
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.