Electric Vehicles

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Electric Vehicles are a key part of our tomorrow and how we get there. If we can get all the fossil fuel vehicles off our roads, out of our seas and out of our skies, we'll have a much better environment. This community is where we discuss the various different vehicles and news stories regarding electric transportation.

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Lotus is the latest automaker to fall for extended-range plug-in hybrids (electrek.co)

submitted 1 week ago by threelonmusketeers@sh.itjust.works to c/electricvehicles

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[–] Mr_Blott@feddit.uk 5 points 6 days ago

Lots Of Trouble, Usually Serious

[+] surph_ninja@lemmy.world -6 points 6 days ago (1 children)

Wish we could get some investment in hydrogen infrastructure. Would really do more to fill the gap where pure EV’s can’t cut it.

[–] knightly@pawb.social 4 points 6 days ago (1 children)

Hydrogen is a non-starter.

[–] surph_ninja@lemmy.world -1 points 6 days ago (1 children)

Why?

[–] knightly@pawb.social 4 points 6 days ago* (last edited 6 days ago) (2 children)

Producing it by cracking water is energetically inefficient and cracking petroleum feedstocks just makes Hydrogen a needlessly expensive kind of fossil fuel. Storage is also nigh-impossible on anything other than short timescales as hydrogen leaks through literally any gasket or seal, and storing any significant quantity can only be done in it's liquid form, which must be kept under high pressure and/or low temperature to remain liquid.

Hydrogen is a boondoggle for automotive purposes, and only remains viable in the rocket industry for one application (upper stage motors) due to the high specific impulse of its exhaust products.

Oh, and don't get me started on metallic hydrates as a storage medium. Fuel tanks that weigh more than the fuel they carry are never going to be viable.

[–] Repelle@lemmy.world 2 points 6 days ago* (last edited 6 days ago)

I mostly agree with you but not entirely. I do think there’s a feasible path to hydrogen being useful in several applications. I don’t think cars are good, but airplanes, trains, and trucks are bigger possibilities.

I do think to make sense we would have to do thermochemical cogeneration with nuclear power plants. This has the nice benefit of significantly increasing the overall efficiency of the nuclear power plants, increasing overall efficiency from the 33% realm to around 50% with cogeneration seems possible, and that use of waste energy helps to offset the worse efficiency downstream. Combined with applications where the weight of batteries is problematic, and you have some potential for success

[–] surph_ninja@lemmy.world 0 points 6 days ago (1 children)

Toyota seems to believe it’s viable. And while the electrolysis is inefficient, it’s clean and works in more scenarios than batteries will.

The efficiencies of EV battery claims never seem to address the issues of batteries functioning in extreme heat or cold, and as climate change ramps up that’s going to be more and more people in those conditions.

[–] knightly@pawb.social 2 points 6 days ago (1 children)

I'm not saying that there won't be niche applications like long-haul ice road trucking or zero-emission Nascar races where it could make more sense than batteries, but in general terms Toyota is merely hedging its bets on the vain hope that they can develop a better storage medium before their niche is taken over by compressed liquid petroleum gas powered cars (fartburners).

[–] surph_ninja@lemmy.world -4 points 6 days ago

The situations need not be that extreme to warrant consideration. EV batteries are exploding in the heat of Florida summers, and the batteries barely work in northern winters.

[–] reddig33@lemmy.world 13 points 1 week ago (3 children)

Remember the Chevy Volt? Pepperidge Farm etc.

[–] PerogiBoi@lemmy.ca 4 points 6 days ago

They killed it so quick. Can’t let people drive a car that’s cheap to run.

[–] Yaky 2 points 6 days ago

Now you have Prius Prime. Same idea and EV range as a Chevy Volt from... 2011.

[–] threelonmusketeers@sh.itjust.works 1 points 1 week ago (1 children)

Aren't GM bringing the Bolt back?

[–] Yaky 5 points 6 days ago

Bolt ≠ Volt

Volt is a plug-in series hybrid (EREV), Bolt is full EV. Volt stopped being manufactured in 2019.