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💧simon holmes à court 💉 Profile picture
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14 Jun, 5 tweets, 2 min read
many eyes on reported leak at #taishan nuclear power station, close to hong kong.

doesn't help that french part-owner has warned of an "imminent radiological threat", but the fact that US is monitoring closely & hasn't raised alarm should be of comfort.

edition.cnn.com/2021/06/14/pol…
small leaks do happen, but overwhelming majority result in zero harm.

best to hold off on hot-takes until situation has been fully assessed. hysteria around an incident do more harm than the incident itself.
"advising US authorities" is not in itself cause for concern.

for the technically curious:
exhibit A: really poor comms
exhibit B: really good comms:

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More from @simonahac

💧simon holmes à court 💉 Profile picture
5 Jun
🧵nuclear zealots like @Dr_Keefer often claim that wind turbines and solar panels last only 20 years.

…and that nuclear plants are somehow "immortal".

one problem: that's 🐂💩! Image
it’s not unusual for solar panels to come with a 25 year warranty these days.

the manufacturer of my solar panels claims they have a *40* year useful life, and guarantee that at 25 years they’ll still be 92% as productive as they were when brand new.

sunpower.maxeon.com/au/sites/defau… Image
#ontario solar manufacturer @SilfabSolar claims the world's longest performance warranty — at least 82.6% of their original power at the end of their 30th year.

silfabsolar.com/wp-content/upl… ImageImage
Read 20 tweets
💧simon holmes à court 💉 Profile picture
1 Jun
😯 callide unit 4, the 405MW "HELE" coal generator near biloela that shat itself last week, underwent a major $48.5m overhaul just 3.5 years ago.

statements.qld.gov.au/statements/830…
…and if you think i'm exaggerating when i say it shat itself, read this:

afr.com/companies/ener…
👆colleague said "real issue isn’t that it was 300kg, but that it stuck in the roof hard enough to overcome gravity!"

separately, a facey post today claims:

"a pic of the callide turbine… VERY destroyed LP turbine casing in the background… broken piece is part of its shaft."
Read 7 tweets
💧simon holmes à court 💉 Profile picture
22 May
🤓 heard the one that there are few ongoing jobs in renewables?

turns out it's nonsense.

@UTSISF's detailed 2020 report, based on AEMO projections, shows the renewables sector provides a good and growing number of good, secure & regional jobs… 🧵

uts.edu.au/research-and-t…
RE sector has 2 arms — construction and operations.

construction jobs will continue for decades. currently construction outnumbers operations, but as fleet grows operations becomes the majority.

i added the red line, coal power jobs.

RE already employs more than coal power.
(this chart does not include jobs in building new 'poles and wires', bioenergy, professional services, renewable hydrogen, mining inputs for RE [e.g. nickel, lithium, cobalt, rare earths] or industrial expansion arising from comparative advantage in energy-intensive industries.)
Read 8 tweets
💧simon holmes à court 💉 Profile picture
18 Apr
🤓@ScottMorrisonMP's fossil gas announcement today is a poke in the eye for @ClimateEnvoy and @POTUS.

morrison claims south australia needs the gas for cheap, reliable power.

let's take a little look at SA's use of gas for power generation… 🧵

theguardian.com/australia-news…
over the past 12 months fossil gas provided 37% of south australia's electricity — a higher proportion than any other state.

(SA completely phased out all coal in 2016 and doesn't have any significant hydro resources.)
if we zoom out to the last 2 decades, we can see the important but *reducing* role gas has played in SA's generation mix.
Read 8 tweets
💧simon holmes à court 💉 Profile picture
17 Mar
10 march: #victoria announces deal to subsidise #coal power station to stay operating.

17 march: #victoria introduces legislation to add a ~$5000 tax on electric vehicles.

🚗🔋➡️💸➡️🏭

taxing climate solutions & subsidising coal.

welcome to the upside down. #springst #auspol
$330/year x 15 years = $4,950

the new MG ZS EV costs $43,990 on the road.

ie. #victoria's new #EV tax works out to be about 11%.

…buy an #EV in victoria and pay more in #EV tax than GST.
with #EVs at 0.7% market share and #victoria's transport emissions rising…

now is the *worst* time to slap on an 11% #EV tax.
Read 4 tweets
💧simon holmes à court 💉 Profile picture
6 Mar
🤓@senbmckenzie facts are important…

while there's an immense amount of energy in all matter — E=mc² and all that — we *don't* have technology to get a lifetime's energy for a person out of a golfball sized lump of uranium.

since we can't rely on @MineralsCouncil, a thread:
if you did want to power an average australian's lifetime energy needs from uranium, what would it take? 🧐

…by a couple of different methods (link at end), i estimate that 2.1GWh would cover all the energy needs of an average australian lifetime, assuming full electrification.
working back from this handy chart from @WorldNuclear, in the best case you'd need 417cc of nuclear fuel (mainly UO₂) for a single australian's lifetime.

but how do you get that? read on…

world-nuclear.org/information-li… Image
Read 15 tweets

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