AukeHoekstra Profile picture
Feb 7, 2022 37 tweets 19 min read Read on X
No, EVs are NOT the new 'diesel scandal' waiting to happen @BjornLomborg & @DailyMailUK

I know I should not feed the trolls but I've completely had it with Bjorn Wormtongue Lomborg

I actually study this stuff so let me set the record straight (again)
🧵
dailymail.co.uk/news/article-1…
There was a time I really liked Bjorn Lomborg.

But by now his relentless attempt to sabotage anything that helps us to transition away from fossil fuels reminds me of Wormtongue, the sycophant to power in lord of the rings.
The following may seem like a rant but I study electric vehicles (EVs) at the Eindhoven University of Technology.

Getting the science right is important to me (see my pinned thread) and Bjorn constant misleading irks me.
So let's dissect the deplorably article that the @DailyMailUK saw fit to publish. The rhetorical not so hidden message is: diesel turned out to be a bad idea, ergo electric vehicles will be a bad idea.

Nonsense of course, but that's the article's introduction.
And we are out of the gate with the first blatant hypocrisy.

These particles emitted by diesels are indeed very toxic. They are not emitted by electric vehicles (EVs).

So in the rest of the article we will forget that combustion engine particles are worse than EV particles.
EVs mostly use their motors to brake. This means few brake emissions. Bjorn knows this, but omits to mention it.
EVs do kick up (often less harmful) road dust but that's partly due to aerodynamics (and many EVs are more aerodynamic).
About weight: it might be interesting to know that batteries get lighter all the time and the electric drivetrain is lighter too.


Heavier EVs is a very temporary phenomenon.
Even for trucks.
researchgate.net/profile/Auke-H…
EVs use electricity and that is taxed just as much.
EVs simply need 4x less energy.
Sorry.

It does mean 'eyewatering' amounts of money can stay in the pockets of UK citizens instead of being exported to e.g. Saudi Arabia.

Money you could spend on schools etc.
One more remark about EV costs: EVs already have much lower running costs (less energy and repairs) and their retail price will soon be lower than that of combustion alternatives (without subsidies).
transportenvironment.org/discover/hitti…

Sorry Bjorn, but you are SO full of it.
Price: they are CHEAPER.

Range: I've done (Dutch) surveys among experienced EV owners and one thing is clear: a range of 350-500 km is fine for almost anybody. Then you charge away from home twice a month or so. It's not a problem.

Extra power: you save 4x as much energy!
Bjorn, Bjorn, Bjorn.

It was an opinion piece that argues we must "consolidate the gains from electrifying transport" (!) by taxing heavy cars.

But none of them have an automotive background which explains some jumping to conclusions. Let me explain.
nature.com/articles/d4158…
Lightweighting is good! Bikes are even better!

But the article only talks about fatalities in vehicle to vehicle collisions which is a small portion of accidents.

It's also pre-EV (from 2012). EVs are built very differently. So you can't generalize.
doi.org/10.1016/j.ecot…
The second source (where they want to link EV weight to pedestrian casualties) doesn't mention electric vehicles and doesn't even mention weight!

For pedestrian safety it's more logical to look at braking distance and bonnet shape/material than weight.
doi.org/10.1016/j.ecot…
So Bjorns claim that EVs kill more people is beyond what you can call cherry-picking.

Maybe you can imagine why I call him Bjorn Wormtongue.
That number is much to high of course.
But even if it was correct, the investment would last 20 years or so and be comparable what we spend on cars EVERY YEAR.

Oh and EVs will save us more than this because they use 4x less energy and require less maintenance.
By not listening to saboteurs like Bjorn Lomborg, we have made wind and solar already cheaper (see also below, in reaction to more specific misleading remarks on this topic).

Since EV motors are 4x more efficient the electricity increase is modest compared to the oil reduction.
They become CHEAPER Born. Say it! You can do it! On range: I've done many surveys and which 350-500 km range, experienced EV drivers say they have enough. Then they only use highway charging every two weeks or so.
"Huge bribes"?
Pricing in externalities is not bribery.

"Endure forced stops"?
Twittering 20 minutes extra, two times a month.
It's something most of us can endure .

Don't make the rhetoric TOO transparent Bjorn!
So we should not do it because some carmaker funded studies say it will not happen?

The EU says all new cars will be zero emission (and almost completely battery electric) by 2030.
Just saying.
Bjorn lying with statistics: counting only this decade (with EV adoption still low in many countries) and comparing with cumulative emissions to 2100.

But we can't afford to skip three quarters of one third of emissions (and growing).
Wormtongue anyone?cleanenergywire.org/factsheets/roa…
Most mining is problematic. We should do better.

But instead of 300 kg of recyclable battery materials, a combustion car needs about 30 tons of unrecyclable oil.

I've included some pictures of apparently problem free oil production for balance.
I happen to be an expert on EV CO2 emissions (see my pinned thread) and again Bjorn is full of it. EVs save circa 60% of emissions when sold now and 90% or so in 2040. On prices: see aforementioned BNEF report. Fortunately even politicians look more long term than Bjorn.
No whining column on EVs is complete without a reference to hydrogen. Don't mention it's more expensive and requires over 2x more energy.
I like it and think it can become climate neutral but it's oversold (see pictures).
Bjorn ends with a platitude intended to sound profound.
But as mentioned before, in the EU transport accounts for 32% of emissions (and rising) and road transport is three quarters of that.
Oh, and cars are the biggest oil users.
theicct.org/a-world-of-tho…
He has the gall to end with the request to invest more in green energy so it can become cheaper since "that would be a game-changer".
Well wind and solar already ARE gamechanger's cheaper than coal and gas, no thanks to saboteurs like Bjorn.
en.wikipedia.org/wiki/Energy_tr…
So there you have it. Should we still call this legitimate discourse or should we call it out for what it is?

I tried to believe he's honest and just has different views but I can't anymore.

Thankfully less & less newspapers are willing to publish his misleading clickbait.
/end
I finally got Bjorn Lomborg to react!

Did I indeed make a series of laughably poor arguments?

Or is Bjorn not that bright?

You'll be the judge!

I can be brief (still 10 tweets: sorry) because he only reacts to three minor points.
I said "EVs use electricity that is taxed just as much but they need 4x less energy."

Bjorn argues they pay 2-4x less taxes.

Is it just me or is it obvious that:
4x less energy
of an energy source that is taxed the same
means you pay 4x less taxes?
I'll spell it out for Bjorn:

Assume you pay 10 cents tax per kWh for electricity and also 10 cents per kWh (=~100 cents per liter) for gasoline.

Now assume your EV uses 0.2 kWh/km but the ICE car uses 0.8 kWh/km (=~8l/100 km).

Then the EV pays 2 ct/km and the ICE car 8 ct/km
I wasn't denying they pay less taxes.
Just pointing out it's BECAUSE they are much more efficient.

I thought that was blindingly obvious.

To Bjorn this argument is so complex that it's silly.

(I made this fun graph for a report to the Dutch parliament so it's in Dutch: sorry.)
I don't claim EVs are not heavier. I claim the electric drivetrain is lighter and batteries get lighter every year so heavier EVs are a temporary phenomenon.

I explain this simple dynamic in a lecture for the "University of the Netherlands" (English subs)
I thought it was interesting to show batteries became about 25x lighter already and this will continue.

Of the 10k people who watched it, Bjorn is the first to protest.

(In the video I predict they become lighter in ~2025.)
Of course, what do I know about electric vehicle weight? I'm just a clueless hack that's part of the automotive department of the technical university @TUeindhoven and specializes in electric vehicles.

I'm not a statistician like Lomborg.
Now the crux of his argument: it's me against "Nature researchers"!

Let's ignore that it's not a peer reviewed paper but a comment (=opinion piece).
Let's ignore the researchers are in favour of EVs (unlike Bjorn) and he just picks out one line he likes.

What are their sources?
Like I explain in my thread they have 2 sources for the argument that the (temporary) weight increase of EVs kills more people:

1) A 2012 article that only looks at vehicle to vehicle collisions and doesn't consider EVs or other crashes or e.g pedestrians
2) An article on pedestrian deaths that talks about size but not weight and not EVs.

If you know this field you know height, bonnet shape/material, and braking power are more important than weight for pedestrian safety.
So that's his response to my line by line takedown of his article:

1) He claims EVs pay less taxes
(I already agreed🤷‍♂️)

2) He repeats "the opinion piece says heavy EVs mean more deaths"
(without engaging with my factual rebuttals)

I honestly thought you were smarter Bjorn.

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More from @AukeHoekstra

Jun 20
Cheap stationary batteries will pave the way for wind and solar in cheap and resilient energy grids. Unfortunately the @IEA is mispredicting it (again).

Thread based on a free substack article I just wrote.
aukehoekstra.substack.com/p/batteries-li…
Image
Many of my followers know this picture: it visualizes how the IEA underestimates solar. Now I see basically the same problem in their new battery report.

Image
The IEAs new battery report gives a lot of great info on batteries but also two predictions taken from their authoritative world energy outlook:
1) STEPS which is basically business as usual
2) NZE (Net Zero Emissions) which is aspirational
iea.org/reports/batter…
Read 11 tweets
Jun 16
Batteries: how cheap can they get?

I used the Sunday afternoot to describe how I think that dirt cheap batteries will completely transform our electricity grid, paving the way for solar and wind and replacing grid reinforcements with grid buffers
aukehoekstra.substack.com/p/batteries-ho…
This is something I'm working on for different government and grid operator projects, but I never realized just how cheap sodium batteries could become and how much of a game changer that will be.

So I used my Sunday evening to write this and would love your feedback!
First I look at the learning curve and then we see it is extremely predictable: every doubling of production has reduced prices by around 25%.

It's even steeper and more predictable than solar panels, the poster child of this type of learning curve.
(More details on substack.) Image
Read 15 tweets
Jun 5
Aaaand we have another winner of the "EVs and renewables can never happen because of material scarcety" sweepstake. I thought @pwrhungry was more serious. Let me explain why this is misleading bollox.
First of all, notice how his argument is mainly that Vaclav Smil says this and HE is an authority.

Why bother to write a substack that basically parrots someone else?

Because you don't really understand it yourself and needed to write another substack maybe?
I'm a bit tired of this because Bryce abuses Smil the same way most people who are against renewables abuse him. They emphasize this is a serious and revered figure that knows numbers. They make it about the messenger, not the argument.
Read 14 tweets
Jun 1
I wholeheartedly agree with @MazzucatoM that we should better evaluate tech companies contributions.

But the focus on energy use makes a mountain out of a molehill while we have bigger fish to fry.

I see computing as both a huge opportunity and an existential threat.
🧵
For me the focus on *how much electricity* an industry uses usually indicates an outdated focus.

We have to get rid of fossil fuels and the mantra is "electrify everything". Because electricity is the form of energy that is usually more efficient and that is greening rapidly.
Many people still can't wrap their heads around the fact that electricity from wind and solar is getting clean, abundant and relatively cheap while we have more than enough materials to make it happen.

IF you focus on datacenter electricity use...
focus on how green it is.
Read 15 tweets
May 25
California is entering phase 2 of something we will see worldwide:

Phase 1)
Solar+wind replace up to ~70% of fossil electricity

Phase 2)
Solar+wind+batteries replace up to ~90% of fossil electricity

Phase 3)
Solar+wind+batteries+eFuels replace 100% of fossil electricity

🧵
Phase 1)
Solar+wind can replace up to ~70% of fossil electricity

It depends on the solar/wind mix, proximity to the equator, grid interconnections, and demand but we are simplifying here.

This is the simple part: just turn off coal+gas when there is enough wind or solar.
But then you run into limits:
1) Solar and wind become worthless when there is an excess (which is increasingly the case)
2) Your grid might not be able to handle the solar or wind peaks
3) Daily demand fluctuations don't match solar+wind
4) Seasonal fluctuations in wind+solar
Read 18 tweets
May 24
Cheap batteries are a GAME CHANGER for
GRID CONGESTION and for SOLAR and WIND

We are now moving towards $60 on the cell level for LFP and $40/kWh for sodium ion. $100 for stationary systems in Chine. Using them for demand response will turn the energy system upside down.
🧵
You might know that grid congestion is now the biggest problem facing the transition to renewables.

At the same time the grid is used 30% on average.
If you include all the safety buffers on different levels it might decrease to 15%.
The key to unlocking all that excess capacity is
DEMAND RESPONSE

That used to be complicated but with batteries it's relatively simple: just drop some containers with battery cells, connect them to the grid, and make them use a smart algorithm.
Read 10 tweets

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