Share this page!

AukeHoekstra Profile picture
Twitter logo
27 Dec, 4 tweets, 2 min read
Der @BILD (large German magazin) claims that electric vehicles emit MORE particulate emission according to a new @OECD report.

This is a lie, plain and simple, if you actually read the report. Which I did because I research this at the @TUeindhoven.

I made a graph to show it.
This thread that I made a while ago contains all the details.
The report is very friendly about gasoline and diesel bc it conforms to official tests that we know are too optimistic about exhaust (e.g. from #dieselgate) but even then it just claims the problem won't go away when using EVs although there's a small but significant improvement.
So I hope @BILD is willing to contact me by mail or phone or otherwise retract/rewrite their article.

So far my experience is that quality papers care about this correctness but most papers nowadays aim to provide click-bait that reinforces prejudices of readers.

• • •

Missing some Tweet in this thread? You can try to force a refresh
　

Keep Current with AukeHoekstra

AukeHoekstra Profile picture

Stay in touch and get notified when new unrolls are available from this author!

Read all threads

This Thread may be Removed Anytime!

PDF

Twitter may remove this content at anytime! Save it as PDF for later use!

Try unrolling a thread yourself!

how to unroll video
  1. Follow @ThreadReaderApp to mention us!

  2. From a Twitter thread mention us with a keyword "unroll"
@threadreaderapp unroll

Practice here first or read more on our help page!

More from @AukeHoekstra

AukeHoekstra Profile picture
23 Dec
Some people want us to believe there's not enough solar energy available to cover our worldwide energy needs

They often use EROI (Energy Return On Investment) as their metric

This is a rant against these EROI people misinforming the debate, based on a rebuttal of a 2020 paper
In essence the approach of the paper is straightforward:

1) Discard water and 96% of land because it's supposedly unavailable

2) Assume solar cells on just 1/5th of the remaining 4%

3) Complain that production of solar panels takes a lot of energy
sciencedirect.com/science/articl…
About 1) (available land)

Discarding 96% of land seems pretty extreme:
30% of the world's land is barren
40% of the world's land is used for meat

I think we could find more than 4% if we tried
(but we don't have to: we need less than 1%)
ourworldindata.org/land-use
Read 11 tweets
AukeHoekstra Profile picture
22 Dec
EVs DO NOT EMIT MORE PM

Recently @OECD published a report about particulate matter (PM) from road transport. Newspaper headlines blared that electric vehicles where worse than combustion vehicles. That conclusion was wrong according to the report itself.

Let me show you.
The report (published december 7) can be found here: oecd-ilibrary.org/environment/no…
It's main point is well taken: as cars get cleaner, fine particles emitted by brakes, tires and road surfaces will become more important.
The table comparing electric and combustion engines is on page 92. I took averages of low and high values to get the graph in the first tweet.
Read 15 tweets
AukeHoekstra Profile picture
21 Dec
We have another winner coming up with what he thinks is a novel idea: "Additional electricity requires coal plants to produce more energy hence electric vehicles run on coal."

Let me point out why that is wrong.
elektroauto-news.net/2020/meinung-d…
First: the German mix gets cleaner as time goes one which means electric vehicles get cleaner as time goes on and coal is phased out before the electric vehicle is scrapped. Leaving that out makes this whole thought experiment a bit nonsensical anyway.
Second: electric vehicles will probably use 'smart charging' (to time the moment of charging) within a couple of years because it saves money for driver, energy producer and grid operator.
elaad.nl/research/smart…

That means that electric vehicles will charge relatively green.
Read 12 tweets
AukeHoekstra Profile picture
9 Dec
Electrofuels or eFuels are all the rage now.
The reason: lovers of combustion engines that wake up to realise their engine is really on the way out.

But eFuels into combustion engines is NOT a realistic solution for cars. Let me explain -again- why.
autocar.co.uk/opinion/indust…
eFuels are not a new idea. So I've made these calculations 15 years ago and many times since. That some people have just woken up doesn't change fundamentals that made them a bad option for cars then and make them a bad option for cars in the future.
The most basic problem is in the basic process:
electricity -> hydrogen
hydrogen -> eFuel
eFuel -> electricity

That means that you have to produce ~5x (!) more low carbon electricity. Think about the costs, space and raw materials required!
Read 8 tweets
AukeHoekstra Profile picture
8 Dec
Oil producer Saudi @Aramco is so scared of electric vehicles that they are now promoting the nonsensical idea of capturing the CO2 emission of cars and trucks with combustion engines.

Allow me to explain why this is nonsense and why it;s probably a cynical ploy.
(short thread)
Burning 1 kg of diesel produces ~2.5 kg of CO2.
At room temp. that's ~1000 liter!
umsl.edu/~biofuels/Ener…

So 1 liter diesel => ~700 liter of CO2.
You could compress it but that would cost extra energy and at the least you need a gas tank much larger than you diesel tank.
Will all gas stations also have a gargantuan CO2 tank to store the CO2? I mean, cars do deliver ~700 liter CO2 for every liter of diesel they bought!

Will we have multiple tank trucks to ferry away the CO2 (to where?) that's caused by the diesel that one truck provided?
Read 7 tweets
AukeHoekstra Profile picture
5 Dec
What's the point of cultured meat when we can eat vegetables?

What's the point of renewables when we can use less energy?

Or of electric bikes when we can walk?

Well maybe decrease global warming, animal suffering, and zoonotic disease?
amp.theguardian.com/commentisfree/…
I get so sick and tired of people postulating "If everybody changed their behavior we wouldn't need sustainable innovation."

Well, unless you have a magic wand to change everybody's behavior, you are not helping. And even if you had you would lack respect for others.
Author @jennykleeman is now saying 'I didn't write the headline'. But the headline captures her article perfectly. She mentions none of the aforementioned problems and concentrates on yuck and how cultured meat can't be trusted by implying Singapore is an inferior country. Uhg.
Read 6 tweets

Did Thread Reader help you today?

Support us! We are indie developers!

This site is made by just two indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member ($3/month or $30/year) and get exclusive features!

Become Premium

Too expensive? Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal Become our Patreon

Thank you for your support!

Follow Us on Twitter!

Like this author's thread?

Get emails when @AukeHoekstra has new unrolls!

Check out other threads from @AukeHoekstra!

Read all threads by @AukeHoekstra