this post was submitted on 26 Dec 2023
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[–] doylio@lemmy.ca 37 points 1 year ago (5 children)

It's worth noting that this is not being done for environmental reasons (more half of all coal pollution comes from China), but for strategic reasons as China has limited access to oil near it's borders.

[–] iAmTheTot@kbin.social 52 points 1 year ago (2 children)

I mean, that's a pretty good reason. I'm not too concerned why they do a good thing, as long as it's done.

[–] realitista@lemmy.world 8 points 1 year ago (1 children)

Not to mention that they are the world's biggest manufacturing power, so whatever they make for themselves will likely also benefit the rest of the world.

[–] JustMy2c@lemm.ee 1 points 1 year ago

If they really wanna make me pro China, make ME energy independent!

Cheap solar panels Cheap batteries Cheap ebikes Cheap ecars

That would cover half my yearly expenses!!

[–] Grayox@lemmy.ml 18 points 1 year ago (1 children)

An EV running on a coal fired grid still has less emissions that a prius. Facts dont care about your feelings.

[–] u_tamtam@programming.dev 6 points 1 year ago (3 children)

Could you please run us through your maths? I'm legit curious.

[–] SaltySalamander@kbin.social 11 points 1 year ago (1 children)

An ICE is only, at most, 35% efficient. In contrast to lithium batteries and electric motors, which is more like 90% efficient. Electricity produced from the dirtiest coal plants that exist, used in an EV, is more efficient and, thus, more environmentally conscious, than burning gasoline in an ICE.

[–] tigerjerusalem@lemmy.world -1 points 1 year ago (1 children)

What about the billions of cells that must be produced and replaced as the scale grown unto millions and millions of cars? And all the mining of rare earth elements it requires?

[–] RubberElectrons@lemmy.world 2 points 1 year ago

It turns out that the lithium is very recyclable. The process of disassembly is what's tricky, but one of Tesla's pre-musk founders is working specifically on this problem.

We can already do it. Mining is (for now) cheaper. Something legislation, applied carefully, can resolve.

[–] zhunk@beehaw.org 3 points 1 year ago

I don't know if their statement is universally true, but the EPA's fuel economy / total emissions calculator seems to show it for what I've put in. You can put in a Prius or random EV and see how they compare.

https://www.epa.gov/greenvehicles/electric-vehicle-myths#Myth1

https://www.fueleconomy.gov/feg/Find.do?action=bt2

[–] lustyargonian@lemm.ee 1 points 1 year ago* (last edited 1 year ago)

My guess would be the efficiency of coal power plants (35%) and electricity transmission (90%) + battery charging of an EV (80%) would be more than efficiency of transporting oil in ships (50%) , then in an ICE truck (40%) to fuel pumps and then finally the efficiency of the ICE car (40%).

I picked the numbers from internet, but they seem plausible.

[–] queermunist@lemmy.ml 9 points 1 year ago (1 children)
[–] naturalgasbad@lemmy.ca 5 points 1 year ago (1 children)

Car engines are immensely inefficient and car charging is a load that's easy to load-balance for renewables (dynamic pricing see: Tesla)

[–] doylio@lemmy.ca 2 points 1 year ago

Yup! EVs and renewables are broadly good things. Just wanted to give some added perspective :)

[–] sugarcake@lemm.ee 1 points 1 year ago

Great argument for a green transition in many places, such as Europe, India and Japan. Dependence on fossil fuels is a big weakness.