Another tower collapse poses more questions about transmission
The sixth transmission tower failure within the NEM in almost four years, has prompted further questions about the physical network and its resilience to severe convective winds.
transmission trip
Network trips and loss of load in Tasmania as well!
it’s not just Victoria experiencing issues … Market Notice 114642 published at 16:14 highlights issues in Tasmania
Rumours of transmission towers on the ground in Victoria (Tue 13th Feb 2024) … but *not* yet confirmed?!
At 15:06 AEMO reported *rumours* of transmission towers on the ground in Victoria. Constraint Set data at 15:45 suggests these rumours are not (yet?) confirmed.
Victorian power system event 13 Feb 2024 13:08 – a few quick notes
Guest author, Allan O’Neil, adds some insights in a rapidly evolving situation on Tuesday afternoon 13th February 2024 in Victoria.
Brief loss of load around Townsville in the early hours of Saturday morning 21st October 2023
A quick initial article on Saturday morning 21st Oct 2023 about a significant loss of load in the Townsville area early this morning following a trip of some transmission elements.
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.
A quick (interim) review of the ~7 days living on the SA island + some broader questions to explore later
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.
A quick review of the sequence of events in SA immediately around the islanding on Saturday 12th November 2022
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.
South Australia islanded (and ~80,000 without power), on Saturday 12th November 2022 (and until Friday 18th Nov 2022)
An initial article with the islanding of the South Australian region on Saturday evening, 12th November 2022.
AEMO releases preliminary report into Tasmanian event on Friday 14th October 2022 (i.e. Article 5 in our series)
On Friday 28th October, the AEMO released its preliminary report into the storm damage to Liapootah – Palmerston 220 kV lines (loss of more than 500MW of load, and trip of Basslink and multiple generators)
Several different timeframes for investigating the major Tasmanian system event beginning Friday 14th October 2022
Third article on what happened on Friday 14th October 2022 – sharing a photograph of the damaged transmission (thanks to TasNetworks for the photo, and Zeus for the weather) and outlining a number of different timescales that could be considered with respect to this event.
Sequence of events in Tasmania on Friday 14th October 2022 (initial look)
On Friday 14th October we saw a significant system event in Tasmania – with storms downing power links, leading to large (530MW) loss of load and trip of Basslink. In this article we take a first look at the sequence of events…
Severe weather in TAS causes disconnects customer load – and coincides with transmission line trips
Recap of some transmission trips overnight in TAS … coincident with severe weather.