A new blogpost claiming it takes nonsensically long for an EV to negate its battery production by overestimating battery production and underestimating battery lifetime.
This time by @go_rozen.

Let me do a quick debunk. blog.gorozen.com/blog/exploring…
If you see this nonsense popping up in your timeline, please do your part of cleaning up the Internet by attaching this thread.

Special thanks to @shabbad for alerting me.
I've previously published about the usual errors in reports on emissions of electric vehicles (EVs) here: sciencedirect.com/science/articl…

The blogpost by @go_rozen focuses on making the two most basic ones: 1) overestimating battery manufacturing, and 2) underestimating battery lifetime
First the emissions per kWh of EV battery.

They are vague about this and don't use links to sources but critique a recent @WSJ article that arrives at 80 CO2eq/kWh.

(Nothing wrong with that estimate by the way.)
wsj.com/graphics/are-e…
Was has the @WSJ done wrong according to @go_rozen? They based themselves on "Emilsson and Dahlloff" which assumes production emits 61-100 kg CO2e/kWh.

@go_rozen "knows" this is wrong because they think this new report assumes too much renewables.
researchgate.net/publication/33…
I discuss this report in-depth on page 7-9 of my own review and I provide links to many better sources, but bottom line: 80 kg is fine and @Go_Rozen simply have no idea what they are talking about.
avere.org/wp-content/upl…
Their approach of making stuff up and trying to present it as analysis becomes very clear when they talk about how long the batteries of a Tesla Model 3 last. Apparently their imagination told them that 500 is a beautiful number and therefore batteries will not last long.
I provide many links that show it's currently closer to 1500 cycles (>400k miles) on page 10-12 of my report. avere.org/wp-content/upl…

Also useful here is the data from many many @Tesla owners that track how long their batteries last.
maartensteinbuch.com/2015/01/24/tes…
I will look at the Jefferies report they mention later but for now rest assured: this @Go_Rozen blogpost is just a piece of misinformed opinion masquerading as analysis. If this is an indication of the quality of their reports I would certainly not do business with them.
P.s. Some help please?

When I search for the @jefferies study that @Go_Rozen refer to I get dozens of links to their misinforming blog (mostly ignorant "told you so" nonsense) and some interviews with @jefferies but I can't find the study itself.

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More from @AukeHoekstra

10 Jun
Today @exxonmobil is hit (and rightly so) for it's plans to expand emissions while @bp_plc and @Shell are moving beyond oil. But when I go to @Reuters world website, exactly half of all paid content is from Saudi @Aramco and it's the most blatant greenwashing I've ever seen.
🧵
"For some, the idea of an oil and gas company positively contributing to the climate challenge is a contradiction. We don't think so."

So Saudi Aramco is keeping it in the ground?

Ah, no. They emit a few % less because their oil is easy to pump up.
aramco.com/en/making-a-di…
But no large new projects then surely?

On the contrary!

Their latest climate change causing project to pump up oil is "A triumph of engineering, nature and human spirit".

We are supposed to celebrate with them I think.
aramco.com/who-we-are/meg…
Read 5 tweets
26 May
A new 'policy brief' for the Victorian Government in Australia has convinced them to create a road tax for EVs.

It wrongfully claims EVs emit more CO2.

If you follow me you know that's not true so I guess I have to do another debunk.
It's written by a group of architects and urban designers dreaming of a city with less cars who are apparently afraid that electric vehicles (EVs) will delay phasing out gas guzzlers.

My problem: they spread misinformation about EVs.
fionapatten.com.au/news/electric-…
They claim a full life cycle analysis (LCA) shows EVs emit more CO2 based on Hawkins et al from 2012 (!).

I know this study well. I'm even credited in the correction you find when you search for the article. onlinelibrary.wiley.com/doi/10.1111/ji…
Read 15 tweets
25 May
Livetweeting the inaugural lecture of my pal @ReintJanRenes of the @HvA about "the climate split".

He's an expert in behavior and climate and important researcher in 'my' NEONresearch.nl.

He starts with a round table with the rector of the HvA, and @helgavanleur and...
Amsterdam councilor or sustainability @mvdoorninck explains her run in with NIMBY and windmills. Love that she says this is the biggest transition since the industrial revolution. Agree 100%. And of course the point that everybody must have a say in this enormous transition.
More information in the booklet that I will link to later

What he WILL tell:

Why climate is important?

Why behavior is important?

Why changing behavior is so hard?

What can we (and @ReintJanRenes and his group) and do about it.
Read 15 tweets
20 May
Yesterday there was another (Dutch) documentary about the abysmal situation of most miners in Congo (some of them children). I think drawing attention to this is good but the format and answers where misguided and counterproductive.
npostart.nl/waarde-van-de-…
The formula of the program is the usual:
1) Appeal to emotion and stoke revulsion at child labour to get people outraged
2) Interview experts who have 'dirt'
3) Appoint some super indirect random scapegoats that you can get on camera and have a 'brave' interviewer confront them
I know: it's the outrage that counts. Truth and solutions are of secondary interest. But let's look at those too.
The solution the programs seems to suggest is: never buy from people implicated in child labour or corruption.
Read 13 tweets
17 May
The @guardian made headlines Sunday by erroneously announding (while misquoting a confused John Kerry) that half of the technology we need to reduce emissions still needs to be invented.

In truth all the tech is there but some of it needs to mature.

theguardian.com/environment/20…
That is actually very good news because immature basically means it will get much cheaper as we scale up.

For example: solar cells have become >100x cheaper in the last 50 years.
So the way I would have put it:

"Over 50% of the reductions will come from young technology that will become massively cheaper as we scale it up.

This is important because most forecasters keep pretending the tech is already mature in the sense that costs reductions will stop."
Read 4 tweets
16 May
Question twitter. Does it also bother you that the formula for many superhero movies seems to be: moral characters kan kill anything that comes at them with a gun but never the psychopaths that keep sending them to their deaths.

Makes the 'moral' characters very immoral to me.
Case in point: most of the X-men movies (what the hell is wrong with all the people letting Stryker live?) but thank god for deadpool I guess.
Something else that never ceases to amaze me: showing a nippel or using a swear word being a bigger problem that thoughtlessly going into a scene where you kill many (expendable?) people with guns.

Call me uncivilized but I think killing is worse than making love.
Read 4 tweets

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